trunk-47381HEADmaster

83 files changed, 32041 insertions, 0 deletions

diff --git a/scripts/arm-magic.sh b/scripts/arm-magic.sh
new file mode 100755
index 0000000..29ec88a
--- /dev/null
+++ b/scripts/arm-magic.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+#
+#   Empty/wrong machtype-workaround generator
+#
+#   Copyright (C) 2006-2012 Imre Kaloz <kaloz@openwrt.org>
+#   based on linux/arch/arm/boot/compressed/head-xscale.S
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# NOTE: for now it's for only IXP4xx in big endian mode
+
+# list of supported boards, in "boardname machtypeid" format
+for board in "avila 526" "gateway7001 731" "nslu2 597" "nas100d 865" "wg302v1 889" "wg302v2 890" "pronghorn 928" "pronghornmetro 1040" "compex 1273" "wrt300nv2 1077" "loft 849" "dsmg600 964" "fsg3 1091" "ap1000 1543" "tw2662 1658" "tw5334 1664" "ixdpg425 604" "cambria 1468" "sidewinder 1041" "ap42x 4418"
+do
+  set -- $board
+  hexid=$(printf %x\\n $2)
+  if [ "$2" -lt "256" ]; then
+    # we have a low machtypeid, we just need a "mov" (e3a)
+    printf "\xe3\xa0\x10\x$hexid" > $BIN_DIR/$IMG_PREFIX-$1-zImage
+  else
+    # we have a high machtypeid, we need a "mov" (e3a) and an "orr" (e38)
+    if [ "$2" -lt "4096" ]; then
+      printf "\xe3\xa0\x10\x$(echo $hexid|cut -b "2 3")\xe3\x81\x1c\x$(echo $hexid|cut -b 1)" > $BIN_DIR/$IMG_PREFIX-$1-zImage
+    else
+      printf "\xe3\xa0\x10\x$(echo $hexid|cut -b "3 4")\xe3\x81\x1c\x$(echo $hexid|cut -b "1 2")" > $BIN_DIR/$IMG_PREFIX-$1-zImage
+    fi
+  fi
+    # generate the image
+    cat $BIN_DIR/$IMG_PREFIX-zImage >> $BIN_DIR/$IMG_PREFIX-$1-zImage
+done
diff --git a/scripts/brcmImage.pl b/scripts/brcmImage.pl
new file mode 100755
index 0000000..9a3acb4
--- /dev/null
+++ b/scripts/brcmImage.pl
@@ -0,0 +1,162 @@
+#!/usr/bin/perl
+#
+#    Copyright (C) 2009	Henk Vergonet <Henk.Vergonet@gmail.com>
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software
+#    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+
+# Description:
+#   Replacement for brcmImagebuilder
+#
+# Disclaimer:
+#   Use this software at your own risk.
+#
+# Changelog:
+#   2009-01-01	Henk.Vergonet at gmail.com
+#
+use strict;
+use Getopt::Std;
+use Compress::Zlib;
+
+my $version = "0.1";
+my %arg = (
+	o => 'bcm963xx_fs_kernel',
+	b => 'OpenWrt',
+	c => '6348',
+	s => 64,
+	f => 0xbfc00000,
+	x => 0x00010000,
+	a => 0x80010000,
+	e => 0x80010000,
+	i => 2,
+);
+my $prog = $0;
+$prog =~ s/^.*\///;
+getopts("r:k:o:lc:b:s:f:i:a:e:tpvh", \%arg);
+
+die "usage: $prog ~opts~
+
+  -r <file>	: input rootfs file
+  -k <file>	: input kernel file
+  -o <file>	: output image file, default $arg{o}
+  -l		: littleendian system, default ".($arg{l} ? 'yes' : 'no')."
+  -c <chipid>	: default $arg{c} 
+  -b <boardid>	: default $arg{b} 
+  -s <size_kb>	: erase sise flash, default $arg{s} 
+  -f <baseaddr>	: flash base, default ".sprintf('0x%x', $arg{f})."
+  -x <cfelen>	: length of cfe, default ".sprintf('0x%x', $arg{x})."
+  -i		: 2=dual image, default $arg{i}
+
+  -a <loadaddr>	: Kernel load address, default ".sprintf('0x%x', $arg{a})."
+  -e <entryaddr>: Kernel entry address, default ".sprintf('0x%x', $arg{e})."
+  -t		: Prefix kernel with load,entry,size
+
+  -p		: Add a 'gOtO' partition 
+
+  -v		: be more verbose
+  -h		: help, version $version
+
+EXAMPLES:
+    $prog -k kern -r rootfs
+" if $arg{h} || !$arg{k} || !$arg{r};
+
+sub Read_Image
+{
+	open my $fh, $_[0] or die "open $_[0]: $!";
+	local $/;	# Set input to "slurp" mode.
+	my $buf = <$fh>;
+	close $fh;
+	return $buf;
+}
+
+sub Padlen
+{
+	my $p = $_[0] % $_[1];
+	return ($p ? $_[1] - $p : 0);
+}
+
+sub Pad
+{
+	my ($buf, $off, $bs) = @_[0..2];
+	$buf .= chr(255) x Padlen(length($buf) + $off, $bs);
+	return $buf;
+}
+
+sub bcmImage
+{
+	my ($k, $f) = @_[0..1];
+	my $tmp = $arg{x} + 0x100 + $arg{f};
+	
+	# regular: rootfs+kernel
+	my ($img, $fa, $ka) = ( $f.$k, $tmp, $tmp + length($f) );
+
+	# test: kernel+rootfs
+#	my ($img, $fa, $ka) = ( $k.$f, $tmp + length($k), $tmp );
+
+	$fa = 0 unless length($f);
+
+	my $hdr = pack("a4a20a14a6a16a2a10a12a10a12a10a12a10a2a2a74Na16",
+		'6',
+		'LinuxInside', 
+		'ver. 2.0', 
+		$arg{c},
+		$arg{b},
+		($arg{l} ? '0' : '1'),
+		length($img),
+		'0',
+		'0',
+		$fa,
+		length($f),
+		$ka,
+		length($k),
+		($arg{i}==2 ? '1' : '0'),
+		'',		# if 1, the image is INACTIVE; if 0, active
+		'',
+		~crc32($k, crc32($f)),
+		'');
+	$hdr .= pack('Na16', ~crc32($hdr), '');
+
+	printf "kernel at 0x%x length 0x%x(%u)\n", $ka, length($k), length($k)
+		if $arg{v};
+	printf "rootfs at 0x%x length 0x%x(%u)\n", $fa, length($f), length($f)
+		if $arg{v};
+
+	open(FO, ">$arg{o}");
+	print FO $hdr;
+	print FO $img;
+	close FO;
+}
+
+# MAIN
+
+my $kern = Read_Image $arg{k};
+my $root = Read_Image $arg{r};
+
+$kern = pack('NNN', $arg{a}, $arg{e}, length($kern)).$kern if $arg{t};
+
+# specific fixup for the CFE that expects rootfs-kernel order
+if ($arg{p}) {
+	$kern = Pad($kern, 0x10c, $arg{s} * 1024);
+	my $dummy_root = pack('a4NN',
+			'gOtO',
+			length($kern)+12,
+			length($root)+Padlen(length($root), $arg{s} * 1024)
+	);
+	$kern .= $root;
+	$root = $dummy_root;
+}
+
+bcmImage($kern, $root);
+
diff --git a/scripts/bundle-libraries.sh b/scripts/bundle-libraries.sh
new file mode 100755
index 0000000..508fe78
--- /dev/null
+++ b/scripts/bundle-libraries.sh
@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+#
+#   Script to install host system binaries along with required libraries.
+#
+#   Copyright (C) 2012-2013 Jo-Philipp Wich <jow@openwrt.org>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+DIR="$1"; shift
+
+_cp() {
+	cp ${VERBOSE:+-v} -L "$1" "$2" || {
+		echo "cp($1 $2) failed" >&2
+		exit 1
+	}
+}
+
+_md() {
+	mkdir ${VERBOSE:+-v} -p "$1" || {
+		echo "mkdir($1) failed" >&2
+		exit 2
+	}
+}
+
+_ln() {
+	ln ${VERBOSE:+-v} -sf "$1" "$2" || {
+		echo "ln($1 $2) failed" >&2
+		exit 3
+	}
+}
+
+for LDD in ${PATH//://ldd }/ldd; do
+	"$LDD" --version >/dev/null 2>/dev/null && break
+	LDD=""
+done
+
+[ -n "$LDD" -a -x "$LDD" ] || LDD=
+
+for BIN in "$@"; do
+	[ -n "$BIN" -a -x "$BIN" -a -n "$DIR" ] || {
+		echo "Usage: $0 <destdir> <executable> ..." >&2
+		exit 1
+	}
+
+	[ ! -d "$DIR/bundled/lib" ] && {
+		_md "$DIR/bundled/lib"
+		_md "$DIR/bundled/usr"
+		_ln "../lib" "$DIR/bundled/usr/lib"
+	}
+
+	LDSO=""
+
+	echo "Bundling ${BIN##*/}"
+	[ -n "$LDD" ] && {
+		for token in $("$LDD" "$BIN" 2>/dev/null); do
+			case "$token" in */*.so*)
+				case "$token" in
+					*ld-*.so*) LDSO="${token##*/}" ;;
+					*) echo " * lib: ${token##*/}" ;;
+				esac
+
+				dest="$DIR/bundled/lib/${token##*/}"
+				ddir="${dest%/*}"
+
+				[ -f "$token" -a ! -f "$dest" ] && {
+					_md "$ddir"
+					_cp "$token" "$dest"
+				}
+			;; esac
+		done
+	}
+
+	_md "$DIR"
+
+	# is a dynamically linked executable
+	if [ -n "$LDSO" ]; then
+		_cp "$BIN" "$DIR/bundled/${BIN##*/}"
+
+		RUN="${LDSO#ld-}"; RUN="run-${RUN%%.so*}.sh"
+
+		[ -x "$DIR/bundled/$RUN" ] || {
+			cat <<-EOF > "$DIR/bundled/$RUN"
+				#!/usr/bin/env bash
+				dir="\$(dirname "\$0")"
+				bin="\$(basename "\$0")"
+				exec -a "\$0" "\$dir/bundled/lib/$LDSO" --library-path "\$dir/bundled/lib" "\$dir/bundled/\$bin" "\$@"
+			EOF
+			chmod ${VERBOSE:+-v} 0755 "$DIR/bundled/$RUN"
+		}
+
+		_ln "./bundled/$RUN" "$DIR/${BIN##*/}"
+
+	# is a static executable or non-elf binary
+	else
+		[ -n "$LDD" ] && echo " * not dynamically linked"
+		_cp "$BIN" "$DIR/${BIN##*/}"
+	fi
+done
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
new file mode 100755
index 0000000..7805333
--- /dev/null
+++ b/scripts/checkpatch.pl
@@ -0,0 +1,3490 @@
+#!/usr/bin/perl -w
+# (c) 2001, Dave Jones. (the file handling bit)
+# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
+# (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
+# (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
+# (c) 2013 Vasilis Tsiligiannis <acinonyx@openwrt.gr> (adapt for OpenWrt tree)
+# Licensed under the terms of the GNU GPL License version 2
+
+use strict;
+
+my $P = $0;
+$P =~ s@.*/@@g;
+
+my $V = '0.32-openwrt';
+
+use Getopt::Long qw(:config no_auto_abbrev);
+
+my $quiet = 0;
+my $tree = 1;
+my $chk_signoff = 1;
+my $chk_patch = 1;
+my $tst_only;
+my $emacs = 0;
+my $terse = 0;
+my $file = 0;
+my $check = 0;
+my $summary = 1;
+my $mailback = 0;
+my $summary_file = 0;
+my $show_types = 0;
+my $root;
+my %debug;
+my %ignore_type = ();
+my @ignore = ();
+my $help = 0;
+my $configuration_file = ".checkpatch.conf";
+
+sub help {
+	my ($exitcode) = @_;
+
+	print << "EOM";
+Usage: $P [OPTION]... [FILE]...
+Version: $V
+
+Options:
+  -q, --quiet                quiet
+  --no-tree                  run without a kernel tree
+  --no-signoff               do not check for 'Signed-off-by' line
+  --patch                    treat FILE as patchfile (default)
+  --emacs                    emacs compile window format
+  --terse                    one line per report
+  -f, --file                 treat FILE as regular source file
+  --subjective, --strict     enable more subjective tests
+  --ignore TYPE(,TYPE2...)   ignore various comma separated message types
+  --show-types               show the message "types" in the output
+  --root=PATH                PATH to the kernel tree root
+  --no-summary               suppress the per-file summary
+  --mailback                 only produce a report in case of warnings/errors
+  --summary-file             include the filename in summary
+  --debug KEY=[0|1]          turn on/off debugging of KEY, where KEY is one of
+                             'values', 'possible', 'type', and 'attr' (default
+                             is all off)
+  --test-only=WORD           report only warnings/errors containing WORD
+                             literally
+  -h, --help, --version      display this help and exit
+
+When FILE is - read standard input.
+EOM
+
+	exit($exitcode);
+}
+
+my $conf = which_conf($configuration_file);
+if (-f $conf) {
+	my @conf_args;
+	open(my $conffile, '<', "$conf")
+	    or warn "$P: Can't find a readable $configuration_file file $!\n";
+
+	while (<$conffile>) {
+		my $line = $_;
+
+		$line =~ s/\s*\n?$//g;
+		$line =~ s/^\s*//g;
+		$line =~ s/\s+/ /g;
+
+		next if ($line =~ m/^\s*#/);
+		next if ($line =~ m/^\s*$/);
+
+		my @words = split(" ", $line);
+		foreach my $word (@words) {
+			last if ($word =~ m/^#/);
+			push (@conf_args, $word);
+		}
+	}
+	close($conffile);
+	unshift(@ARGV, @conf_args) if @conf_args;
+}
+
+GetOptions(
+	'q|quiet+'	=> \$quiet,
+	'tree!'		=> \$tree,
+	'signoff!'	=> \$chk_signoff,
+	'patch!'	=> \$chk_patch,
+	'emacs!'	=> \$emacs,
+	'terse!'	=> \$terse,
+	'f|file!'	=> \$file,
+	'subjective!'	=> \$check,
+	'strict!'	=> \$check,
+	'ignore=s'	=> \@ignore,
+	'show-types!'	=> \$show_types,
+	'root=s'	=> \$root,
+	'summary!'	=> \$summary,
+	'mailback!'	=> \$mailback,
+	'summary-file!'	=> \$summary_file,
+
+	'debug=s'	=> \%debug,
+	'test-only=s'	=> \$tst_only,
+	'h|help'	=> \$help,
+	'version'	=> \$help
+) or help(1);
+
+help(0) if ($help);
+
+my $exit = 0;
+
+if ($#ARGV < 0) {
+	print "$P: no input files\n";
+	exit(1);
+}
+
+@ignore = split(/,/, join(',',@ignore));
+foreach my $word (@ignore) {
+	$word =~ s/\s*\n?$//g;
+	$word =~ s/^\s*//g;
+	$word =~ s/\s+/ /g;
+	$word =~ tr/[a-z]/[A-Z]/;
+
+	next if ($word =~ m/^\s*#/);
+	next if ($word =~ m/^\s*$/);
+
+	$ignore_type{$word}++;
+}
+
+my $dbg_values = 0;
+my $dbg_possible = 0;
+my $dbg_type = 0;
+my $dbg_attr = 0;
+for my $key (keys %debug) {
+	## no critic
+	eval "\${dbg_$key} = '$debug{$key}';";
+	die "$@" if ($@);
+}
+
+my $rpt_cleaners = 0;
+
+if ($terse) {
+	$emacs = 1;
+	$quiet++;
+}
+
+if ($tree) {
+	if (defined $root) {
+		if (!top_of_openwrt_tree($root)) {
+			die "$P: $root: --root does not point at a valid tree\n";
+		}
+	} else {
+		if (top_of_openwrt_tree('.')) {
+			$root = '.';
+		} elsif ($0 =~ m@(.*)/scripts/[^/]*$@ &&
+						top_of_openwrt_tree($1)) {
+			$root = $1;
+		}
+	}
+
+	if (!defined $root) {
+		print "Must be run from the top-level dir. of a OpenWrt tree\n";
+		exit(2);
+	}
+}
+
+my $emitted_corrupt = 0;
+
+our $Ident	= qr{
+			[A-Za-z_][A-Za-z\d_]*
+			(?:\s*\#\#\s*[A-Za-z_][A-Za-z\d_]*)*
+		}x;
+our $Storage	= qr{extern|static|asmlinkage};
+our $Sparse	= qr{
+			__user|
+			__kernel|
+			__force|
+			__iomem|
+			__must_check|
+			__init_refok|
+			__kprobes|
+			__ref|
+			__rcu
+		}x;
+
+# Notes to $Attribute:
+# We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
+our $Attribute	= qr{
+			const|
+			__percpu|
+			__nocast|
+			__safe|
+			__bitwise__|
+			__packed__|
+			__packed2__|
+			__naked|
+			__maybe_unused|
+			__always_unused|
+			__noreturn|
+			__used|
+			__cold|
+			__noclone|
+			__deprecated|
+			__read_mostly|
+			__kprobes|
+			__(?:mem|cpu|dev|)(?:initdata|initconst|init\b)|
+			____cacheline_aligned|
+			____cacheline_aligned_in_smp|
+			____cacheline_internodealigned_in_smp|
+			__weak
+		  }x;
+our $Modifier;
+our $Inline	= qr{inline|__always_inline|noinline};
+our $Member	= qr{->$Ident|\.$Ident|\[[^]]*\]};
+our $Lval	= qr{$Ident(?:$Member)*};
+
+our $Constant	= qr{(?i:(?:[0-9]+|0x[0-9a-f]+)[ul]*)};
+our $Assignment	= qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
+our $Compare    = qr{<=|>=|==|!=|<|>};
+our $Operators	= qr{
+			<=|>=|==|!=|
+			=>|->|<<|>>|<|>|!|~|
+			&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
+		  }x;
+
+our $NonptrType;
+our $Type;
+our $Declare;
+
+our $NON_ASCII_UTF8	= qr{
+	[\xC2-\xDF][\x80-\xBF]               # non-overlong 2-byte
+	|  \xE0[\xA0-\xBF][\x80-\xBF]        # excluding overlongs
+	| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}  # straight 3-byte
+	|  \xED[\x80-\x9F][\x80-\xBF]        # excluding surrogates
+	|  \xF0[\x90-\xBF][\x80-\xBF]{2}     # planes 1-3
+	| [\xF1-\xF3][\x80-\xBF]{3}          # planes 4-15
+	|  \xF4[\x80-\x8F][\x80-\xBF]{2}     # plane 16
+}x;
+
+our $UTF8	= qr{
+	[\x09\x0A\x0D\x20-\x7E]              # ASCII
+	| $NON_ASCII_UTF8
+}x;
+
+our $typeTypedefs = qr{(?x:
+	(?:__)?(?:u|s|be|le)(?:8|16|32|64)|
+	atomic_t
+)};
+
+our $logFunctions = qr{(?x:
+	printk(?:_ratelimited|_once|)|
+	[a-z0-9]+_(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
+	WARN(?:_RATELIMIT|_ONCE|)|
+	panic|
+	MODULE_[A-Z_]+
+)};
+
+our $signature_tags = qr{(?xi:
+	Signed-off-by:|
+	Acked-by:|
+	Tested-by:|
+	Reviewed-by:|
+	Reported-by:|
+	To:|
+	Cc:
+)};
+
+our @typeList = (
+	qr{void},
+	qr{(?:unsigned\s+)?char},
+	qr{(?:unsigned\s+)?short},
+	qr{(?:unsigned\s+)?int},
+	qr{(?:unsigned\s+)?long},
+	qr{(?:unsigned\s+)?long\s+int},
+	qr{(?:unsigned\s+)?long\s+long},
+	qr{(?:unsigned\s+)?long\s+long\s+int},
+	qr{unsigned},
+	qr{float},
+	qr{double},
+	qr{bool},
+	qr{struct\s+$Ident},
+	qr{union\s+$Ident},
+	qr{enum\s+$Ident},
+	qr{${Ident}_t},
+	qr{${Ident}_handler},
+	qr{${Ident}_handler_fn},
+);
+our @modifierList = (
+	qr{fastcall},
+);
+
+our $allowed_asm_includes = qr{(?x:
+	irq|
+	memory
+)};
+# memory.h: ARM has a custom one
+
+sub build_types {
+	my $mods = "(?x:  \n" . join("|\n  ", @modifierList) . "\n)";
+	my $all = "(?x:  \n" . join("|\n  ", @typeList) . "\n)";
+	$Modifier	= qr{(?:$Attribute|$Sparse|$mods)};
+	$NonptrType	= qr{
+			(?:$Modifier\s+|const\s+)*
+			(?:
+				(?:typeof|__typeof__)\s*\([^\)]*\)|
+				(?:$typeTypedefs\b)|
+				(?:${all}\b)
+			)
+			(?:\s+$Modifier|\s+const)*
+		  }x;
+	$Type	= qr{
+			$NonptrType
+			(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)?
+			(?:\s+$Inline|\s+$Modifier)*
+		  }x;
+	$Declare	= qr{(?:$Storage\s+)?$Type};
+}
+build_types();
+
+
+our $Typecast	= qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
+
+# Using $balanced_parens, $LvalOrFunc, or $FuncArg
+# requires at least perl version v5.10.0
+# Any use must be runtime checked with $^V
+
+our $balanced_parens = qr/(\((?:[^\(\)]++|(?-1))*\))/;
+our $LvalOrFunc	= qr{($Lval)\s*($balanced_parens{0,1})\s*};
+our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant)};
+
+sub deparenthesize {
+	my ($string) = @_;
+	return "" if (!defined($string));
+	$string =~ s@^\s*\(\s*@@g;
+	$string =~ s@\s*\)\s*$@@g;
+	$string =~ s@\s+@ @g;
+	return $string;
+}
+
+$chk_signoff = 0 if ($file);
+
+my @rawlines = ();
+my @lines = ();
+my $vname;
+for my $filename (@ARGV) {
+	my $FILE;
+	if ($file) {
+		open($FILE, '-|', "diff -u /dev/null $filename") ||
+			die "$P: $filename: diff failed - $!\n";
+	} elsif ($filename eq '-') {
+		open($FILE, '<&STDIN');
+	} else {
+		open($FILE, '<', "$filename") ||
+			die "$P: $filename: open failed - $!\n";
+	}
+	if ($filename eq '-') {
+		$vname = 'Your patch';
+	} else {
+		$vname = $filename;
+	}
+	while (<$FILE>) {
+		chomp;
+		push(@rawlines, $_);
+	}
+	close($FILE);
+	if (!process($filename)) {
+		$exit = 1;
+	}
+	@rawlines = ();
+	@lines = ();
+}
+
+exit($exit);
+
+sub top_of_openwrt_tree {
+	my ($root) = @_;
+
+	my @tree_check = (
+		"BSDmakefile", "Config.in", "LICENSE", "Makefile", "README",
+		"docs", "feeds.conf.default", "include", "package", "rules.mk",
+		"scripts", "target", "toolchain", "tools"
+	);
+
+	foreach my $check (@tree_check) {
+		if (! -e $root . '/' . $check) {
+			return 0;
+		}
+	}
+	return 1;
+    }
+
+sub parse_email {
+	my ($formatted_email) = @_;
+
+	my $name = "";
+	my $address = "";
+	my $comment = "";
+
+	if ($formatted_email =~ /^(.*)<(\S+\@\S+)>(.*)$/) {
+		$name = $1;
+		$address = $2;
+		$comment = $3 if defined $3;
+	} elsif ($formatted_email =~ /^\s*<(\S+\@\S+)>(.*)$/) {
+		$address = $1;
+		$comment = $2 if defined $2;
+	} elsif ($formatted_email =~ /(\S+\@\S+)(.*)$/) {
+		$address = $1;
+		$comment = $2 if defined $2;
+		$formatted_email =~ s/$address.*$//;
+		$name = $formatted_email;
+		$name =~ s/^\s+|\s+$//g;
+		$name =~ s/^\"|\"$//g;
+		# If there's a name left after stripping spaces and
+		# leading quotes, and the address doesn't have both
+		# leading and trailing angle brackets, the address
+		# is invalid. ie:
+		#   "joe smith joe@smith.com" bad
+		#   "joe smith <joe@smith.com" bad
+		if ($name ne "" && $address !~ /^<[^>]+>$/) {
+			$name = "";
+			$address = "";
+			$comment = "";
+		}
+	}
+
+	$name =~ s/^\s+|\s+$//g;
+	$name =~ s/^\"|\"$//g;
+	$address =~ s/^\s+|\s+$//g;
+	$address =~ s/^\<|\>$//g;
+
+	if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
+		$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
+		$name = "\"$name\"";
+	}
+
+	return ($name, $address, $comment);
+}
+
+sub format_email {
+	my ($name, $address) = @_;
+
+	my $formatted_email;
+
+	$name =~ s/^\s+|\s+$//g;
+	$name =~ s/^\"|\"$//g;
+	$address =~ s/^\s+|\s+$//g;
+
+	if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
+		$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
+		$name = "\"$name\"";
+	}
+
+	if ("$name" eq "") {
+		$formatted_email = "$address";
+	} else {
+		$formatted_email = "$name <$address>";
+	}
+
+	return $formatted_email;
+}
+
+sub which_conf {
+	my ($conf) = @_;
+
+	foreach my $path (split(/:/, ".:$ENV{HOME}:.scripts")) {
+		if (-e "$path/$conf") {
+			return "$path/$conf";
+		}
+	}
+
+	return "";
+}
+
+sub expand_tabs {
+	my ($str) = @_;
+
+	my $res = '';
+	my $n = 0;
+	for my $c (split(//, $str)) {
+		if ($c eq "\t") {
+			$res .= ' ';
+			$n++;
+			for (; ($n % 8) != 0; $n++) {
+				$res .= ' ';
+			}
+			next;
+		}
+		$res .= $c;
+		$n++;
+	}
+
+	return $res;
+}
+sub copy_spacing {
+	(my $res = shift) =~ tr/\t/ /c;
+	return $res;
+}
+
+sub line_stats {
+	my ($line) = @_;
+
+	# Drop the diff line leader and expand tabs
+	$line =~ s/^.//;
+	$line = expand_tabs($line);
+
+	# Pick the indent from the front of the line.
+	my ($white) = ($line =~ /^(\s*)/);
+
+	return (length($line), length($white));
+}
+
+my $sanitise_quote = '';
+
+sub sanitise_line_reset {
+	my ($in_comment) = @_;
+
+	if ($in_comment) {
+		$sanitise_quote = '*/';
+	} else {
+		$sanitise_quote = '';
+	}
+}
+sub sanitise_line {
+	my ($line) = @_;
+
+	my $res = '';
+	my $l = '';
+
+	my $qlen = 0;
+	my $off = 0;
+	my $c;
+
+	# Always copy over the diff marker.
+	$res = substr($line, 0, 1);
+
+	for ($off = 1; $off < length($line); $off++) {
+		$c = substr($line, $off, 1);
+
+		# Comments we are wacking completly including the begin
+		# and end, all to $;.
+		if ($sanitise_quote eq '' && substr($line, $off, 2) eq '/*') {
+			$sanitise_quote = '*/';
+
+			substr($res, $off, 2, "$;$;");
+			$off++;
+			next;
+		}
+		if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') {
+			$sanitise_quote = '';
+			substr($res, $off, 2, "$;$;");
+			$off++;
+			next;
+		}
+		if ($sanitise_quote eq '' && substr($line, $off, 2) eq '//') {
+			$sanitise_quote = '//';
+
+			substr($res, $off, 2, $sanitise_quote);
+			$off++;
+			next;
+		}
+
+		# A \ in a string means ignore the next character.
+		if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
+		    $c eq "\\") {
+			substr($res, $off, 2, 'XX');
+			$off++;
+			next;
+		}
+		# Regular quotes.
+		if ($c eq "'" || $c eq '"') {
+			if ($sanitise_quote eq '') {
+				$sanitise_quote = $c;
+
+				substr($res, $off, 1, $c);
+				next;
+			} elsif ($sanitise_quote eq $c) {
+				$sanitise_quote = '';
+			}
+		}
+
+		#print "c<$c> SQ<$sanitise_quote>\n";
+		if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
+			substr($res, $off, 1, $;);
+		} elsif ($off != 0 && $sanitise_quote eq '//' && $c ne "\t") {
+			substr($res, $off, 1, $;);
+		} elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
+			substr($res, $off, 1, 'X');
+		} else {
+			substr($res, $off, 1, $c);
+		}
+	}
+
+	if ($sanitise_quote eq '//') {
+		$sanitise_quote = '';
+	}
+
+	# The pathname on a #include may be surrounded by '<' and '>'.
+	if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) {
+		my $clean = 'X' x length($1);
+		$res =~ s@\<.*\>@<$clean>@;
+
+	# The whole of a #error is a string.
+	} elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(.*)\b/) {
+		my $clean = 'X' x length($1);
+		$res =~ s@(\#\s*(?:error|warning)\s+).*@$1$clean@;
+	}
+
+	return $res;
+}
+
+sub ctx_statement_block {
+	my ($linenr, $remain, $off) = @_;
+	my $line = $linenr - 1;
+	my $blk = '';
+	my $soff = $off;
+	my $coff = $off - 1;
+	my $coff_set = 0;
+
+	my $loff = 0;
+
+	my $type = '';
+	my $level = 0;
+	my @stack = ();
+	my $p;
+	my $c;
+	my $len = 0;
+
+	my $remainder;
+	while (1) {
+		@stack = (['', 0]) if ($#stack == -1);
+
+		#warn "CSB: blk<$blk> remain<$remain>\n";
+		# If we are about to drop off the end, pull in more
+		# context.
+		if ($off >= $len) {
+			for (; $remain > 0; $line++) {
+				last if (!defined $lines[$line]);
+				next if ($lines[$line] =~ /^-/);
+				$remain--;
+				$loff = $len;
+				$blk .= $lines[$line] . "\n";
+				$len = length($blk);
+				$line++;
+				last;
+			}
+			# Bail if there is no further context.
+			#warn "CSB: blk<$blk> off<$off> len<$len>\n";
+			if ($off >= $len) {
+				last;
+			}
+			if ($level == 0 && substr($blk, $off) =~ /^.\s*#\s*define/) {
+				$level++;
+				$type = '#';
+			}
+		}
+		$p = $c;
+		$c = substr($blk, $off, 1);
+		$remainder = substr($blk, $off);
+
+		#warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n";
+
+		# Handle nested #if/#else.
+		if ($remainder =~ /^#\s*(?:ifndef|ifdef|if)\s/) {
+			push(@stack, [ $type, $level ]);
+		} elsif ($remainder =~ /^#\s*(?:else|elif)\b/) {
+			($type, $level) = @{$stack[$#stack - 1]};
+		} elsif ($remainder =~ /^#\s*endif\b/) {
+			($type, $level) = @{pop(@stack)};
+		}
+
+		# Statement ends at the ';' or a close '}' at the
+		# outermost level.
+		if ($level == 0 && $c eq ';') {
+			last;
+		}
+
+		# An else is really a conditional as long as its not else if
+		if ($level == 0 && $coff_set == 0 &&
+				(!defined($p) || $p =~ /(?:\s|\}|\+)/) &&
+				$remainder =~ /^(else)(?:\s|{)/ &&
+				$remainder !~ /^else\s+if\b/) {
+			$coff = $off + length($1) - 1;
+			$coff_set = 1;
+			#warn "CSB: mark coff<$coff> soff<$soff> 1<$1>\n";
+			#warn "[" . substr($blk, $soff, $coff - $soff + 1) . "]\n";
+		}
+
+		if (($type eq '' || $type eq '(') && $c eq '(') {
+			$level++;
+			$type = '(';
+		}
+		if ($type eq '(' && $c eq ')') {
+			$level--;
+			$type = ($level != 0)? '(' : '';
+
+			if ($level == 0 && $coff < $soff) {
+				$coff = $off;
+				$coff_set = 1;
+				#warn "CSB: mark coff<$coff>\n";
+			}
+		}
+		if (($type eq '' || $type eq '{') && $c eq '{') {
+			$level++;
+			$type = '{';
+		}
+		if ($type eq '{' && $c eq '}') {
+			$level--;
+			$type = ($level != 0)? '{' : '';
+
+			if ($level == 0) {
+				if (substr($blk, $off + 1, 1) eq ';') {
+					$off++;
+				}
+				last;
+			}
+		}
+		# Preprocessor commands end at the newline unless escaped.
+		if ($type eq '#' && $c eq "\n" && $p ne "\\") {
+			$level--;
+			$type = '';
+			$off++;
+			last;
+		}
+		$off++;
+	}
+	# We are truly at the end, so shuffle to the next line.
+	if ($off == $len) {
+		$loff = $len + 1;
+		$line++;
+		$remain--;
+	}
+
+	my $statement = substr($blk, $soff, $off - $soff + 1);
+	my $condition = substr($blk, $soff, $coff - $soff + 1);
+
+	#warn "STATEMENT<$statement>\n";
+	#warn "CONDITION<$condition>\n";
+
+	#print "coff<$coff> soff<$off> loff<$loff>\n";
+
+	return ($statement, $condition,
+			$line, $remain + 1, $off - $loff + 1, $level);
+}
+
+sub statement_lines {
+	my ($stmt) = @_;
+
+	# Strip the diff line prefixes and rip blank lines at start and end.
+	$stmt =~ s/(^|\n)./$1/g;
+	$stmt =~ s/^\s*//;
+	$stmt =~ s/\s*$//;
+
+	my @stmt_lines = ($stmt =~ /\n/g);
+
+	return $#stmt_lines + 2;
+}
+
+sub statement_rawlines {
+	my ($stmt) = @_;
+
+	my @stmt_lines = ($stmt =~ /\n/g);
+
+	return $#stmt_lines + 2;
+}
+
+sub statement_block_size {
+	my ($stmt) = @_;
+
+	$stmt =~ s/(^|\n)./$1/g;
+	$stmt =~ s/^\s*{//;
+	$stmt =~ s/}\s*$//;
+	$stmt =~ s/^\s*//;
+	$stmt =~ s/\s*$//;
+
+	my @stmt_lines = ($stmt =~ /\n/g);
+	my @stmt_statements = ($stmt =~ /;/g);
+
+	my $stmt_lines = $#stmt_lines + 2;
+	my $stmt_statements = $#stmt_statements + 1;
+
+	if ($stmt_lines > $stmt_statements) {
+		return $stmt_lines;
+	} else {
+		return $stmt_statements;
+	}
+}
+
+sub ctx_statement_full {
+	my ($linenr, $remain, $off) = @_;
+	my ($statement, $condition, $level);
+
+	my (@chunks);
+
+	# Grab the first conditional/block pair.
+	($statement, $condition, $linenr, $remain, $off, $level) =
+				ctx_statement_block($linenr, $remain, $off);
+	#print "F: c<$condition> s<$statement> remain<$remain>\n";
+	push(@chunks, [ $condition, $statement ]);
+	if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
+		return ($level, $linenr, @chunks);
+	}
+
+	# Pull in the following conditional/block pairs and see if they
+	# could continue the statement.
+	for (;;) {
+		($statement, $condition, $linenr, $remain, $off, $level) =
+				ctx_statement_block($linenr, $remain, $off);
+		#print "C: c<$condition> s<$statement> remain<$remain>\n";
+		last if (!($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(?:else|do)\b/s));
+		#print "C: push\n";
+		push(@chunks, [ $condition, $statement ]);
+	}
+
+	return ($level, $linenr, @chunks);
+}
+
+sub ctx_block_get {
+	my ($linenr, $remain, $outer, $open, $close, $off) = @_;
+	my $line;
+	my $start = $linenr - 1;
+	my $blk = '';
+	my @o;
+	my @c;
+	my @res = ();
+
+	my $level = 0;
+	my @stack = ($level);
+	for ($line = $start; $remain > 0; $line++) {
+		next if ($rawlines[$line] =~ /^-/);
+		$remain--;
+
+		$blk .= $rawlines[$line];
+
+		# Handle nested #if/#else.
+		if ($lines[$line] =~ /^.\s*#\s*(?:ifndef|ifdef|if)\s/) {
+			push(@stack, $level);
+		} elsif ($lines[$line] =~ /^.\s*#\s*(?:else|elif)\b/) {
+			$level = $stack[$#stack - 1];
+		} elsif ($lines[$line] =~ /^.\s*#\s*endif\b/) {
+			$level = pop(@stack);
+		}
+
+		foreach my $c (split(//, $lines[$line])) {
+			##print "C<$c>L<$level><$open$close>O<$off>\n";
+			if ($off > 0) {
+				$off--;
+				next;
+			}
+
+			if ($c eq $close && $level > 0) {
+				$level--;
+				last if ($level == 0);
+			} elsif ($c eq $open) {
+				$level++;
+			}
+		}
+
+		if (!$outer || $level <= 1) {
+			push(@res, $rawlines[$line]);
+		}
+
+		last if ($level == 0);
+	}
+
+	return ($level, @res);
+}
+sub ctx_block_outer {
+	my ($linenr, $remain) = @_;
+
+	my ($level, @r) = ctx_block_get($linenr, $remain, 1, '{', '}', 0);
+	return @r;
+}
+sub ctx_block {
+	my ($linenr, $remain) = @_;
+
+	my ($level, @r) = ctx_block_get($linenr, $remain, 0, '{', '}', 0);
+	return @r;
+}
+sub ctx_statement {
+	my ($linenr, $remain, $off) = @_;
+
+	my ($level, @r) = ctx_block_get($linenr, $remain, 0, '(', ')', $off);
+	return @r;
+}
+sub ctx_block_level {
+	my ($linenr, $remain) = @_;
+
+	return ctx_block_get($linenr, $remain, 0, '{', '}', 0);
+}
+sub ctx_statement_level {
+	my ($linenr, $remain, $off) = @_;
+
+	return ctx_block_get($linenr, $remain, 0, '(', ')', $off);
+}
+
+sub ctx_locate_comment {
+	my ($first_line, $end_line) = @_;
+
+	# Catch a comment on the end of the line itself.
+	my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
+	return $current_comment if (defined $current_comment);
+
+	# Look through the context and try and figure out if there is a
+	# comment.
+	my $in_comment = 0;
+	$current_comment = '';
+	for (my $linenr = $first_line; $linenr < $end_line; $linenr++) {
+		my $line = $rawlines[$linenr - 1];
+		#warn "           $line\n";
+		if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
+			$in_comment = 1;
+		}
+		if ($line =~ m@/\*@) {
+			$in_comment = 1;
+		}
+		if (!$in_comment && $current_comment ne '') {
+			$current_comment = '';
+		}
+		$current_comment .= $line . "\n" if ($in_comment);
+		if ($line =~ m@\*/@) {
+			$in_comment = 0;
+		}
+	}
+
+	chomp($current_comment);
+	return($current_comment);
+}
+sub ctx_has_comment {
+	my ($first_line, $end_line) = @_;
+	my $cmt = ctx_locate_comment($first_line, $end_line);
+
+	##print "LINE: $rawlines[$end_line - 1 ]\n";
+	##print "CMMT: $cmt\n";
+
+	return ($cmt ne '');
+}
+
+sub raw_line {
+	my ($linenr, $cnt) = @_;
+
+	my $offset = $linenr - 1;
+	$cnt++;
+
+	my $line;
+	while ($cnt) {
+		$line = $rawlines[$offset++];
+		next if (defined($line) && $line =~ /^-/);
+		$cnt--;
+	}
+
+	return $line;
+}
+
+sub cat_vet {
+	my ($vet) = @_;
+	my ($res, $coded);
+
+	$res = '';
+	while ($vet =~ /([^[:cntrl:]]*)([[:cntrl:]]|$)/g) {
+		$res .= $1;
+		if ($2 ne '') {
+			$coded = sprintf("^%c", unpack('C', $2) + 64);
+			$res .= $coded;
+		}
+	}
+	$res =~ s/$/\$/;
+
+	return $res;
+}
+
+my $av_preprocessor = 0;
+my $av_pending;
+my @av_paren_type;
+my $av_pend_colon;
+
+sub annotate_reset {
+	$av_preprocessor = 0;
+	$av_pending = '_';
+	@av_paren_type = ('E');
+	$av_pend_colon = 'O';
+}
+
+sub annotate_values {
+	my ($stream, $type) = @_;
+
+	my $res;
+	my $var = '_' x length($stream);
+	my $cur = $stream;
+
+	print "$stream\n" if ($dbg_values > 1);
+
+	while (length($cur)) {
+		@av_paren_type = ('E') if ($#av_paren_type < 0);
+		print " <" . join('', @av_paren_type) .
+				"> <$type> <$av_pending>" if ($dbg_values > 1);
+		if ($cur =~ /^(\s+)/o) {
+			print "WS($1)\n" if ($dbg_values > 1);
+			if ($1 =~ /\n/ && $av_preprocessor) {
+				$type = pop(@av_paren_type);
+				$av_preprocessor = 0;
+			}
+
+		} elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
+			print "CAST($1)\n" if ($dbg_values > 1);
+			push(@av_paren_type, $type);
+			$type = 'c';
+
+		} elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) {
+			print "DECLARE($1)\n" if ($dbg_values > 1);
+			$type = 'T';
+
+		} elsif ($cur =~ /^($Modifier)\s*/) {
+			print "MODIFIER($1)\n" if ($dbg_values > 1);
+			$type = 'T';
+
+		} elsif ($cur =~ /^(\#\s*define\s*$Ident)(\(?)/o) {
+			print "DEFINE($1,$2)\n" if ($dbg_values > 1);
+			$av_preprocessor = 1;
+			push(@av_paren_type, $type);
+			if ($2 ne '') {
+				$av_pending = 'N';
+			}
+			$type = 'E';
+
+		} elsif ($cur =~ /^(\#\s*(?:undef\s*$Ident|include\b))/o) {
+			print "UNDEF($1)\n" if ($dbg_values > 1);
+			$av_preprocessor = 1;
+			push(@av_paren_type, $type);
+
+		} elsif ($cur =~ /^(\#\s*(?:ifdef|ifndef|if))/o) {
+			print "PRE_START($1)\n" if ($dbg_values > 1);
+			$av_preprocessor = 1;
+
+			push(@av_paren_type, $type);
+			push(@av_paren_type, $type);
+			$type = 'E';
+
+		} elsif ($cur =~ /^(\#\s*(?:else|elif))/o) {
+			print "PRE_RESTART($1)\n" if ($dbg_values > 1);
+			$av_preprocessor = 1;
+
+			push(@av_paren_type, $av_paren_type[$#av_paren_type]);
+
+			$type = 'E';
+
+		} elsif ($cur =~ /^(\#\s*(?:endif))/o) {
+			print "PRE_END($1)\n" if ($dbg_values > 1);
+
+			$av_preprocessor = 1;
+
+			# Assume all arms of the conditional end as this
+			# one does, and continue as if the #endif was not here.
+			pop(@av_paren_type);
+			push(@av_paren_type, $type);
+			$type = 'E';
+
+		} elsif ($cur =~ /^(\\\n)/o) {
+			print "PRECONT($1)\n" if ($dbg_values > 1);
+
+		} elsif ($cur =~ /^(__attribute__)\s*\(?/o) {
+			print "ATTR($1)\n" if ($dbg_values > 1);
+			$av_pending = $type;
+			$type = 'N';
+
+		} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
+			print "SIZEOF($1)\n" if ($dbg_values > 1);
+			if (defined $2) {
+				$av_pending = 'V';
+			}
+			$type = 'N';
+
+		} elsif ($cur =~ /^(if|while|for)\b/o) {
+			print "COND($1)\n" if ($dbg_values > 1);
+			$av_pending = 'E';
+			$type = 'N';
+
+		} elsif ($cur =~/^(case)/o) {
+			print "CASE($1)\n" if ($dbg_values > 1);
+			$av_pend_colon = 'C';
+			$type = 'N';
+
+		} elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) {
+			print "KEYWORD($1)\n" if ($dbg_values > 1);
+			$type = 'N';
+
+		} elsif ($cur =~ /^(\()/o) {
+			print "PAREN('$1')\n" if ($dbg_values > 1);
+			push(@av_paren_type, $av_pending);
+			$av_pending = '_';
+			$type = 'N';
+
+		} elsif ($cur =~ /^(\))/o) {
+			my $new_type = pop(@av_paren_type);
+			if ($new_type ne '_') {
+				$type = $new_type;
+				print "PAREN('$1') -> $type\n"
+							if ($dbg_values > 1);
+			} else {
+				print "PAREN('$1')\n" if ($dbg_values > 1);
+			}
+
+		} elsif ($cur =~ /^($Ident)\s*\(/o) {
+			print "FUNC($1)\n" if ($dbg_values > 1);
+			$type = 'V';
+			$av_pending = 'V';
+
+		} elsif ($cur =~ /^($Ident\s*):(?:\s*\d+\s*(,|=|;))?/) {
+			if (defined $2 && $type eq 'C' || $type eq 'T') {
+				$av_pend_colon = 'B';
+			} elsif ($type eq 'E') {
+				$av_pend_colon = 'L';
+			}
+			print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
+			$type = 'V';
+
+		} elsif ($cur =~ /^($Ident|$Constant)/o) {
+			print "IDENT($1)\n" if ($dbg_values > 1);
+			$type = 'V';
+
+		} elsif ($cur =~ /^($Assignment)/o) {
+			print "ASSIGN($1)\n" if ($dbg_values > 1);
+			$type = 'N';
+
+		} elsif ($cur =~/^(;|{|})/) {
+			print "END($1)\n" if ($dbg_values > 1);
+			$type = 'E';
+			$av_pend_colon = 'O';
+
+		} elsif ($cur =~/^(,)/) {
+			print "COMMA($1)\n" if ($dbg_values > 1);
+			$type = 'C';
+
+		} elsif ($cur =~ /^(\?)/o) {
+			print "QUESTION($1)\n" if ($dbg_values > 1);
+			$type = 'N';
+
+		} elsif ($cur =~ /^(:)/o) {
+			print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1);
+
+			substr($var, length($res), 1, $av_pend_colon);
+			if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') {
+				$type = 'E';
+			} else {
+				$type = 'N';
+			}
+			$av_pend_colon = 'O';
+
+		} elsif ($cur =~ /^(\[)/o) {
+			print "CLOSE($1)\n" if ($dbg_values > 1);
+			$type = 'N';
+
+		} elsif ($cur =~ /^(-(?![->])|\+(?!\+)|\*|\&\&|\&)/o) {
+			my $variant;
+
+			print "OPV($1)\n" if ($dbg_values > 1);
+			if ($type eq 'V') {
+				$variant = 'B';
+			} else {
+				$variant = 'U';
+			}
+
+			substr($var, length($res), 1, $variant);
+			$type = 'N';
+
+		} elsif ($cur =~ /^($Operators)/o) {
+			print "OP($1)\n" if ($dbg_values > 1);
+			if ($1 ne '++' && $1 ne '--') {
+				$type = 'N';
+			}
+
+		} elsif ($cur =~ /(^.)/o) {
+			print "C($1)\n" if ($dbg_values > 1);
+		}
+		if (defined $1) {
+			$cur = substr($cur, length($1));
+			$res .= $type x length($1);
+		}
+	}
+
+	return ($res, $var);
+}
+
+sub possible {
+	my ($possible, $line) = @_;
+	my $notPermitted = qr{(?:
+		^(?:
+			$Modifier|
+			$Storage|
+			$Type|
+			DEFINE_\S+
+		)$|
+		^(?:
+			goto|
+			return|
+			case|
+			else|
+			asm|__asm__|
+			do|
+			\#|
+			\#\#|
+		)(?:\s|$)|
+		^(?:typedef|struct|enum)\b
+	    )}x;
+	warn "CHECK<$possible> ($line)\n" if ($dbg_possible > 2);
+	if ($possible !~ $notPermitted) {
+		# Check for modifiers.
+		$possible =~ s/\s*$Storage\s*//g;
+		$possible =~ s/\s*$Sparse\s*//g;
+		if ($possible =~ /^\s*$/) {
+
+		} elsif ($possible =~ /\s/) {
+			$possible =~ s/\s*$Type\s*//g;
+			for my $modifier (split(' ', $possible)) {
+				if ($modifier !~ $notPermitted) {
+					warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible);
+					push(@modifierList, $modifier);
+				}
+			}
+
+		} else {
+			warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
+			push(@typeList, $possible);
+		}
+		build_types();
+	} else {
+		warn "NOTPOSS: $possible ($line)\n" if ($dbg_possible > 1);
+	}
+}
+
+my $prefix = '';
+
+sub show_type {
+       return !defined $ignore_type{$_[0]};
+}
+
+sub report {
+	if (!show_type($_[1]) ||
+	    (defined $tst_only && $_[2] !~ /\Q$tst_only\E/)) {
+		return 0;
+	}
+	my $line;
+	if ($show_types) {
+		$line = "$prefix$_[0]:$_[1]: $_[2]\n";
+	} else {
+		$line = "$prefix$_[0]: $_[2]\n";
+	}
+	$line = (split('\n', $line))[0] . "\n" if ($terse);
+
+	push(our @report, $line);
+
+	return 1;
+}
+sub report_dump {
+	our @report;
+}
+
+sub ERROR {
+	if (report("ERROR", $_[0], $_[1])) {
+		our $clean = 0;
+		our $cnt_error++;
+	}
+}
+sub WARN {
+	if (report("WARNING", $_[0], $_[1])) {
+		our $clean = 0;
+		our $cnt_warn++;
+	}
+}
+sub CHK {
+	if ($check && report("CHECK", $_[0], $_[1])) {
+		our $clean = 0;
+		our $cnt_chk++;
+	}
+}
+
+sub check_absolute_file {
+	my ($absolute, $herecurr) = @_;
+	my $file = $absolute;
+
+	##print "absolute<$absolute>\n";
+
+	# See if any suffix of this path is a path within the tree.
+	while ($file =~ s@^[^/]*/@@) {
+		if (-f "$root/$file") {
+			##print "file<$file>\n";
+			last;
+		}
+	}
+	if (! -f _)  {
+		return 0;
+	}
+
+	# It is, so see if the prefix is acceptable.
+	my $prefix = $absolute;
+	substr($prefix, -length($file)) = '';
+
+	##print "prefix<$prefix>\n";
+	if ($prefix ne ".../") {
+		WARN("USE_RELATIVE_PATH",
+		     "use relative pathname instead of absolute in changelog text\n" . $herecurr);
+	}
+}
+
+sub pos_last_openparen {
+	my ($line) = @_;
+
+	my $pos = 0;
+
+	my $opens = $line =~ tr/\(/\(/;
+	my $closes = $line =~ tr/\)/\)/;
+
+	my $last_openparen = 0;
+
+	if (($opens == 0) || ($closes >= $opens)) {
+		return -1;
+	}
+
+	my $len = length($line);
+
+	for ($pos = 0; $pos < $len; $pos++) {
+		my $string = substr($line, $pos);
+		if ($string =~ /^($FuncArg|$balanced_parens)/) {
+			$pos += length($1) - 1;
+		} elsif (substr($line, $pos, 1) eq '(') {
+			$last_openparen = $pos;
+		} elsif (index($string, '(') == -1) {
+			last;
+		}
+	}
+
+	return $last_openparen + 1;
+}
+
+sub process {
+	my $filename = shift;
+
+	my $linenr=0;
+	my $prevline="";
+	my $prevrawline="";
+	my $stashline="";
+	my $stashrawline="";
+
+	my $length;
+	my $indent;
+	my $previndent=0;
+	my $stashindent=0;
+
+	our $clean = 1;
+	my $signoff = 0;
+	my $is_patch = 0;
+
+	my $in_header_lines = 1;
+	my $in_commit_log = 0;		#Scanning lines before patch
+
+	our @report = ();
+	our $cnt_lines = 0;
+	our $cnt_error = 0;
+	our $cnt_warn = 0;
+	our $cnt_chk = 0;
+
+	# Trace the real file/line as we go.
+	my $realfile = '';
+	my $realline = 0;
+	my $realcnt = 0;
+	my $here = '';
+	my $in_comment = 0;
+	my $comment_edge = 0;
+	my $first_line = 0;
+	my $p1_prefix = '';
+
+	my $prev_values = 'E';
+
+	# suppression flags
+	my %suppress_ifbraces;
+	my %suppress_whiletrailers;
+	my %suppress_export;
+	my $suppress_statement = 0;
+
+	# Pre-scan the patch sanitizing the lines.
+	sanitise_line_reset();
+	my $line;
+	foreach my $rawline (@rawlines) {
+		$linenr++;
+		$line = $rawline;
+
+		if ($rawline=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
+			$realline=$1-1;
+			if (defined $2) {
+				$realcnt=$3+1;
+			} else {
+				$realcnt=1+1;
+			}
+			$in_comment = 0;
+
+			# Guestimate if this is a continuing comment.  Run
+			# the context looking for a comment "edge".  If this
+			# edge is a close comment then we must be in a comment
+			# at context start.
+			my $edge;
+			my $cnt = $realcnt;
+			for (my $ln = $linenr + 1; $cnt > 0; $ln++) {
+				next if (defined $rawlines[$ln - 1] &&
+					 $rawlines[$ln - 1] =~ /^-/);
+				$cnt--;
+				#print "RAW<$rawlines[$ln - 1]>\n";
+				last if (!defined $rawlines[$ln - 1]);
+				if ($rawlines[$ln - 1] =~ m@(/\*|\*/)@ &&
+				    $rawlines[$ln - 1] !~ m@"[^"]*(?:/\*|\*/)[^"]*"@) {
+					($edge) = $1;
+					last;
+				}
+			}
+			if (defined $edge && $edge eq '*/') {
+				$in_comment = 1;
+			}
+
+			# Guestimate if this is a continuing comment.  If this
+			# is the start of a diff block and this line starts
+			# ' *' then it is very likely a comment.
+			if (!defined $edge &&
+			    $rawlines[$linenr] =~ m@^.\s*(?:\*\*+| \*)(?:\s|$)@)
+			{
+				$in_comment = 1;
+			}
+
+			##print "COMMENT:$in_comment edge<$edge> $rawline\n";
+			sanitise_line_reset($in_comment);
+
+		} elsif ($realcnt && $rawline =~ /^(?:\+| |$)/) {
+			# Standardise the strings and chars within the input to
+			# simplify matching -- only bother with positive lines.
+			$line = sanitise_line($rawline);
+		}
+		push(@lines, $line);
+
+		if ($realcnt > 1) {
+			$realcnt-- if ($line =~ /^(?:\+| |$)/);
+		} else {
+			$realcnt = 0;
+		}
+
+		#print "==>$rawline\n";
+		#print "-->$line\n";
+	}
+
+	$prefix = '';
+
+	$realcnt = 0;
+	$linenr = 0;
+	foreach my $line (@lines) {
+		$linenr++;
+
+		my $rawline = $rawlines[$linenr - 1];
+
+#extract the line range in the file after the patch is applied
+		if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
+			$is_patch = 1;
+			$first_line = $linenr + 1;
+			$realline=$1-1;
+			if (defined $2) {
+				$realcnt=$3+1;
+			} else {
+				$realcnt=1+1;
+			}
+			annotate_reset();
+			$prev_values = 'E';
+
+			%suppress_ifbraces = ();
+			%suppress_whiletrailers = ();
+			%suppress_export = ();
+			$suppress_statement = 0;
+			next;
+
+# track the line number as we move through the hunk, note that
+# new versions of GNU diff omit the leading space on completely
+# blank context lines so we need to count that too.
+		} elsif ($line =~ /^( |\+|$)/) {
+			$realline++;
+			$realcnt-- if ($realcnt != 0);
+
+			# Measure the line length and indent.
+			($length, $indent) = line_stats($rawline);
+
+			# Track the previous line.
+			($prevline, $stashline) = ($stashline, $line);
+			($previndent, $stashindent) = ($stashindent, $indent);
+			($prevrawline, $stashrawline) = ($stashrawline, $rawline);
+
+			#warn "line<$line>\n";
+
+		} elsif ($realcnt == 1) {
+			$realcnt--;
+		}
+
+		my $hunk_line = ($realcnt != 0);
+
+#make up the handle for any error we report on this line
+		$prefix = "$filename:$realline: " if ($emacs && $file);
+		$prefix = "$filename:$linenr: " if ($emacs && !$file);
+
+		$here = "#$linenr: " if (!$file);
+		$here = "#$realline: " if ($file);
+
+		# extract the filename as it passes
+		if ($line =~ /^diff --git.*?(\S+)$/) {
+			$realfile = $1;
+			$realfile =~ s@^([^/]*)/@@;
+			$in_commit_log = 0;
+		} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
+			$realfile = $1;
+			$realfile =~ s@^([^/]*)/@@;
+			$in_commit_log = 0;
+
+			$p1_prefix = $1;
+			if (!$file && $tree && $p1_prefix ne '' &&
+			    -e "$root/$p1_prefix") {
+				WARN("PATCH_PREFIX",
+				     "patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
+			}
+
+			if ($realfile =~ m@^include/asm/@) {
+				ERROR("MODIFIED_INCLUDE_ASM",
+				      "do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
+			}
+			next;
+		}
+
+		$here .= "FILE: $realfile:$realline:" if ($realcnt != 0);
+
+		my $hereline = "$here\n$rawline\n";
+		my $herecurr = "$here\n$rawline\n";
+		my $hereprev = "$here\n$prevrawline\n$rawline\n";
+
+		$cnt_lines++ if ($realcnt != 0);
+
+# Check for incorrect file permissions
+		if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) {
+			my $permhere = $here . "FILE: $realfile\n";
+			if ($realfile =~ /(Makefile|Kconfig|\.c|\.h|\.S|\.tmpl)$/) {
+				ERROR("EXECUTE_PERMISSIONS",
+				      "do not set execute permissions for source files\n" . $permhere);
+			}
+		}
+
+# Check the patch for a signoff:
+		if ($line =~ /^\s*signed-off-by:/i) {
+			$signoff++;
+			$in_commit_log = 0;
+		}
+
+# Check signature styles
+		if (!$in_header_lines &&
+		    $line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
+			my $space_before = $1;
+			my $sign_off = $2;
+			my $space_after = $3;
+			my $email = $4;
+			my $ucfirst_sign_off = ucfirst(lc($sign_off));
+
+			if (defined $space_before && $space_before ne "") {
+				WARN("BAD_SIGN_OFF",
+				     "Do not use whitespace before $ucfirst_sign_off\n" . $herecurr);
+			}
+			if ($sign_off =~ /-by:$/i && $sign_off ne $ucfirst_sign_off) {
+				WARN("BAD_SIGN_OFF",
+				     "'$ucfirst_sign_off' is the preferred signature form\n" . $herecurr);
+			}
+			if (!defined $space_after || $space_after ne " ") {
+				WARN("BAD_SIGN_OFF",
+				     "Use a single space after $ucfirst_sign_off\n" . $herecurr);
+			}
+
+			my ($email_name, $email_address, $comment) = parse_email($email);
+			my $suggested_email = format_email(($email_name, $email_address));
+			if ($suggested_email eq "") {
+				ERROR("BAD_SIGN_OFF",
+				      "Unrecognized email address: '$email'\n" . $herecurr);
+			} else {
+				my $dequoted = $suggested_email;
+				$dequoted =~ s/^"//;
+				$dequoted =~ s/" </ </;
+				# Don't force email to have quotes
+				# Allow just an angle bracketed address
+				if ("$dequoted$comment" ne $email &&
+				    "<$email_address>$comment" ne $email &&
+				    "$suggested_email$comment" ne $email) {
+					WARN("BAD_SIGN_OFF",
+					     "email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr);
+				}
+			}
+		}
+
+# Check for wrappage within a valid hunk of the file
+		if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) {
+			ERROR("CORRUPTED_PATCH",
+			      "patch seems to be corrupt (line wrapped?)\n" .
+				$herecurr) if (!$emitted_corrupt++);
+		}
+
+# Check for absolute kernel paths.
+		if ($tree) {
+			while ($line =~ m{(?:^|\s)(/\S*)}g) {
+				my $file = $1;
+
+				if ($file =~ m{^(.*?)(?::\d+)+:?$} &&
+				    check_absolute_file($1, $herecurr)) {
+					#
+				} else {
+					check_absolute_file($file, $herecurr);
+				}
+			}
+		}
+
+# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
+		if (($realfile =~ /^$/ || $line =~ /^\+/) &&
+		    $rawline !~ m/^$UTF8*$/) {
+			my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/);
+
+			my $blank = copy_spacing($rawline);
+			my $ptr = substr($blank, 0, length($utf8_prefix)) . "^";
+			my $hereptr = "$hereline$ptr\n";
+
+			CHK("INVALID_UTF8",
+			    "Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
+		}
+
+# Check if it's the start of a commit log
+# (not a header line and we haven't seen the patch filename)
+		if ($in_header_lines && $realfile =~ /^$/ &&
+		    $rawline !~ /^(commit\b|from\b|[\w-]+:).+$/i) {
+			$in_header_lines = 0;
+			$in_commit_log = 1;
+		}
+
+# Still not yet in a patch, check for any UTF-8
+		if ($in_commit_log && $realfile =~ /^$/ &&
+		    $rawline =~ /$NON_ASCII_UTF8/) {
+			CHK("UTF8_BEFORE_PATCH",
+			    "8-bit UTF-8 used in possible commit log\n" . $herecurr);
+		}
+
+# ignore non-hunk lines and lines being removed
+		next if (!$hunk_line || $line =~ /^-/);
+
+#trailing whitespace
+		if ($line =~ /^\+.*\015/) {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			ERROR("DOS_LINE_ENDINGS",
+			      "DOS line endings\n" . $herevet);
+
+		} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			ERROR("TRAILING_WHITESPACE",
+			      "trailing whitespace\n" . $herevet);
+			$rpt_cleaners = 1;
+		}
+
+# check for Kconfig help text having a real description
+# Only applies when adding the entry originally, after that we do not have
+# sufficient context to determine whether it is indeed long enough.
+		if ($realfile =~ /Kconfig/ &&
+		    $line =~ /.\s*config\s+/) {
+			my $length = 0;
+			my $cnt = $realcnt;
+			my $ln = $linenr + 1;
+			my $f;
+			my $is_start = 0;
+			my $is_end = 0;
+			for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) {
+				$f = $lines[$ln - 1];
+				$cnt-- if ($lines[$ln - 1] !~ /^-/);
+				$is_end = $lines[$ln - 1] =~ /^\+/;
+
+				next if ($f =~ /^-/);
+
+				if ($lines[$ln - 1] =~ /.\s*(?:bool|tristate)\s*\"/) {
+					$is_start = 1;
+				} elsif ($lines[$ln - 1] =~ /.\s*(?:---)?help(?:---)?$/) {
+					$length = -1;
+				}
+
+				$f =~ s/^.//;
+				$f =~ s/#.*//;
+				$f =~ s/^\s+//;
+				next if ($f =~ /^$/);
+				if ($f =~ /^\s*config\s/) {
+					$is_end = 1;
+					last;
+				}
+				$length++;
+			}
+			WARN("CONFIG_DESCRIPTION",
+			     "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_start && $is_end && $length < 4);
+			#print "is_start<$is_start> is_end<$is_end> length<$length>\n";
+		}
+
+		if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
+		    ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) {
+			my $flag = $1;
+			my $replacement = {
+				'EXTRA_AFLAGS' =>   'asflags-y',
+				'EXTRA_CFLAGS' =>   'ccflags-y',
+				'EXTRA_CPPFLAGS' => 'cppflags-y',
+				'EXTRA_LDFLAGS' =>  'ldflags-y',
+			};
+
+			WARN("DEPRECATED_VARIABLE",
+			     "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
+		}
+
+# check we are in a valid source file if not then ignore this hunk
+		next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
+
+#80 column limit
+		if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
+		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
+		    !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ ||
+		    $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
+		    $length > 80)
+		{
+			WARN("LONG_LINE",
+			     "line over 80 characters\n" . $herecurr);
+		}
+
+# Check for user-visible strings broken across lines, which breaks the ability
+# to grep for the string.  Limited to strings used as parameters (those
+# following an open parenthesis), which almost completely eliminates false
+# positives, as well as warning only once per parameter rather than once per
+# line of the string.  Make an exception when the previous string ends in a
+# newline (multiple lines in one string constant) or \n\t (common in inline
+# assembly to indent the instruction on the following line).
+		if ($line =~ /^\+\s*"/ &&
+		    $prevline =~ /"\s*$/ &&
+		    $prevline =~ /\(/ &&
+		    $prevrawline !~ /\\n(?:\\t)*"\s*$/) {
+			WARN("SPLIT_STRING",
+			     "quoted string split across lines\n" . $hereprev);
+		}
+
+# check for spaces before a quoted newline
+		if ($rawline =~ /^.*\".*\s\\n/) {
+			WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
+			     "unnecessary whitespace before a quoted newline\n" . $herecurr);
+		}
+
+# check for adding lines without a newline.
+		if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
+			WARN("MISSING_EOF_NEWLINE",
+			     "adding a line without newline at end of file\n" . $herecurr);
+		}
+
+# Blackfin: use hi/lo macros
+		if ($realfile =~ m@arch/blackfin/.*\.S$@) {
+			if ($line =~ /\.[lL][[:space:]]*=.*&[[:space:]]*0x[fF][fF][fF][fF]/) {
+				my $herevet = "$here\n" . cat_vet($line) . "\n";
+				ERROR("LO_MACRO",
+				      "use the LO() macro, not (... & 0xFFFF)\n" . $herevet);
+			}
+			if ($line =~ /\.[hH][[:space:]]*=.*>>[[:space:]]*16/) {
+				my $herevet = "$here\n" . cat_vet($line) . "\n";
+				ERROR("HI_MACRO",
+				      "use the HI() macro, not (... >> 16)\n" . $herevet);
+			}
+		}
+
+# check we are in a valid source file C or perl if not then ignore this hunk
+		next if ($realfile !~ /\.(h|c|pl)$/);
+
+# at the beginning of a line any tabs must come first and anything
+# more than 8 must use tabs.
+		if ($rawline =~ /^\+\s* \t\s*\S/ ||
+		    $rawline =~ /^\+\s*        \s*/) {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			ERROR("CODE_INDENT",
+			      "code indent should use tabs where possible\n" . $herevet);
+			$rpt_cleaners = 1;
+		}
+
+# check for space before tabs.
+		if ($rawline =~ /^\+/ && $rawline =~ / \t/) {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			WARN("SPACE_BEFORE_TAB",
+			     "please, no space before tabs\n" . $herevet);
+		}
+
+# check for && or || at the start of a line
+		if ($rawline =~ /^\+\s*(&&|\|\|)/) {
+			CHK("LOGICAL_CONTINUATIONS",
+			    "Logical continuations should be on the previous line\n" . $hereprev);
+		}
+
+# check multi-line statement indentation matches previous line
+		if ($^V && $^V ge 5.10.0 &&
+		    $prevline =~ /^\+(\t*)(if \(|$Ident\().*(\&\&|\|\||,)\s*$/) {
+			$prevline =~ /^\+(\t*)(.*)$/;
+			my $oldindent = $1;
+			my $rest = $2;
+
+			my $pos = pos_last_openparen($rest);
+			if ($pos >= 0) {
+				$line =~ /^\+([ \t]*)/;
+				my $newindent = $1;
+
+				my $goodtabindent = $oldindent .
+					"\t" x ($pos / 8) .
+					" "  x ($pos % 8);
+				my $goodspaceindent = $oldindent . " "  x $pos;
+
+				if ($newindent ne $goodtabindent &&
+				    $newindent ne $goodspaceindent) {
+					CHK("PARENTHESIS_ALIGNMENT",
+					    "Alignment should match open parenthesis\n" . $hereprev);
+				}
+			}
+		}
+
+		if ($line =~ /^\+.*\*[ \t]*\)[ \t]+/) {
+			CHK("SPACING",
+			    "No space is necessary after a cast\n" . $hereprev);
+		}
+
+		if ($rawline =~ /^\+[ \t]*\/\*[ \t]*$/ &&
+		    $prevrawline =~ /^\+[ \t]*$/) {
+			CHK("BLOCK_COMMENT_STYLE",
+			    "Don't begin block comments with only a /* line, use /* comment...\n" . $hereprev);
+		}
+
+# check for spaces at the beginning of a line.
+# Exceptions:
+#  1) within comments
+#  2) indented preprocessor commands
+#  3) hanging labels
+		if ($rawline =~ /^\+ / && $line !~ /\+ *(?:$;|#|$Ident:)/)  {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			WARN("LEADING_SPACE",
+			     "please, no spaces at the start of a line\n" . $herevet);
+		}
+
+# check we are in a valid C source file if not then ignore this hunk
+		next if ($realfile !~ /\.(h|c)$/);
+
+# check for RCS/CVS revision markers
+		if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
+			WARN("CVS_KEYWORD",
+			     "CVS style keyword markers, these will _not_ be updated\n". $herecurr);
+		}
+
+# Blackfin: don't use __builtin_bfin_[cs]sync
+		if ($line =~ /__builtin_bfin_csync/) {
+			my $herevet = "$here\n" . cat_vet($line) . "\n";
+			ERROR("CSYNC",
+			      "use the CSYNC() macro in asm/blackfin.h\n" . $herevet);
+		}
+		if ($line =~ /__builtin_bfin_ssync/) {
+			my $herevet = "$here\n" . cat_vet($line) . "\n";
+			ERROR("SSYNC",
+			      "use the SSYNC() macro in asm/blackfin.h\n" . $herevet);
+		}
+
+# Check for potential 'bare' types
+		my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
+		    $realline_next);
+#print "LINE<$line>\n";
+		if ($linenr >= $suppress_statement &&
+		    $realcnt && $line =~ /.\s*\S/) {
+			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+				ctx_statement_block($linenr, $realcnt, 0);
+			$stat =~ s/\n./\n /g;
+			$cond =~ s/\n./\n /g;
+
+#print "linenr<$linenr> <$stat>\n";
+			# If this statement has no statement boundaries within
+			# it there is no point in retrying a statement scan
+			# until we hit end of it.
+			my $frag = $stat; $frag =~ s/;+\s*$//;
+			if ($frag !~ /(?:{|;)/) {
+#print "skip<$line_nr_next>\n";
+				$suppress_statement = $line_nr_next;
+			}
+
+			# Find the real next line.
+			$realline_next = $line_nr_next;
+			if (defined $realline_next &&
+			    (!defined $lines[$realline_next - 1] ||
+			     substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) {
+				$realline_next++;
+			}
+
+			my $s = $stat;
+			$s =~ s/{.*$//s;
+
+			# Ignore goto labels.
+			if ($s =~ /$Ident:\*$/s) {
+
+			# Ignore functions being called
+			} elsif ($s =~ /^.\s*$Ident\s*\(/s) {
+
+			} elsif ($s =~ /^.\s*else\b/s) {
+
+			# declarations always start with types
+			} elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+?)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))(?:\s*$Modifier)?\s*(?:;|=|,|\()/s) {
+				my $type = $1;
+				$type =~ s/\s+/ /g;
+				possible($type, "A:" . $s);
+
+			# definitions in global scope can only start with types
+			} elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b\s*(?!:)/s) {
+				possible($1, "B:" . $s);
+			}
+
+			# any (foo ... *) is a pointer cast, and foo is a type
+			while ($s =~ /\(($Ident)(?:\s+$Sparse)*[\s\*]+\s*\)/sg) {
+				possible($1, "C:" . $s);
+			}
+
+			# Check for any sort of function declaration.
+			# int foo(something bar, other baz);
+			# void (*store_gdt)(x86_descr_ptr *);
+			if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/s) {
+				my ($name_len) = length($1);
+
+				my $ctx = $s;
+				substr($ctx, 0, $name_len + 1, '');
+				$ctx =~ s/\)[^\)]*$//;
+
+				for my $arg (split(/\s*,\s*/, $ctx)) {
+					if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) {
+
+						possible($1, "D:" . $s);
+					}
+				}
+			}
+
+		}
+
+#
+# Checks which may be anchored in the context.
+#
+
+# Check for switch () and associated case and default
+# statements should be at the same indent.
+		if ($line=~/\bswitch\s*\(.*\)/) {
+			my $err = '';
+			my $sep = '';
+			my @ctx = ctx_block_outer($linenr, $realcnt);
+			shift(@ctx);
+			for my $ctx (@ctx) {
+				my ($clen, $cindent) = line_stats($ctx);
+				if ($ctx =~ /^\+\s*(case\s+|default:)/ &&
+							$indent != $cindent) {
+					$err .= "$sep$ctx\n";
+					$sep = '';
+				} else {
+					$sep = "[...]\n";
+				}
+			}
+			if ($err ne '') {
+				ERROR("SWITCH_CASE_INDENT_LEVEL",
+				      "switch and case should be at the same indent\n$hereline$err");
+			}
+		}
+
+# if/while/etc brace do not go on next line, unless defining a do while loop,
+# or if that brace on the next line is for something else
+		if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
+			my $pre_ctx = "$1$2";
+
+			my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
+
+			if ($line =~ /^\+\t{6,}/) {
+				WARN("DEEP_INDENTATION",
+				     "Too many leading tabs - consider code refactoring\n" . $herecurr);
+			}
+
+			my $ctx_cnt = $realcnt - $#ctx - 1;
+			my $ctx = join("\n", @ctx);
+
+			my $ctx_ln = $linenr;
+			my $ctx_skip = $realcnt;
+
+			while ($ctx_skip > $ctx_cnt || ($ctx_skip == $ctx_cnt &&
+					defined $lines[$ctx_ln - 1] &&
+					$lines[$ctx_ln - 1] =~ /^-/)) {
+				##print "SKIP<$ctx_skip> CNT<$ctx_cnt>\n";
+				$ctx_skip-- if (!defined $lines[$ctx_ln - 1] || $lines[$ctx_ln - 1] !~ /^-/);
+				$ctx_ln++;
+			}
+
+			#print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
+			#print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
+
+			if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln -1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
+				ERROR("OPEN_BRACE",
+				      "that open brace { should be on the previous line\n" .
+					"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
+			}
+			if ($level == 0 && $pre_ctx !~ /}\s*while\s*\($/ &&
+			    $ctx =~ /\)\s*\;\s*$/ &&
+			    defined $lines[$ctx_ln - 1])
+			{
+				my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
+				if ($nindent > $indent) {
+					WARN("TRAILING_SEMICOLON",
+					     "trailing semicolon indicates no statements, indent implies otherwise\n" .
+						"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
+				}
+			}
+		}
+
+# Check relative indent for conditionals and blocks.
+		if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+				ctx_statement_block($linenr, $realcnt, 0)
+					if (!defined $stat);
+			my ($s, $c) = ($stat, $cond);
+
+			substr($s, 0, length($c), '');
+
+			# Make sure we remove the line prefixes as we have
+			# none on the first line, and are going to readd them
+			# where necessary.
+			$s =~ s/\n./\n/gs;
+
+			# Find out how long the conditional actually is.
+			my @newlines = ($c =~ /\n/gs);
+			my $cond_lines = 1 + $#newlines;
+
+			# We want to check the first line inside the block
+			# starting at the end of the conditional, so remove:
+			#  1) any blank line termination
+			#  2) any opening brace { on end of the line
+			#  3) any do (...) {
+			my $continuation = 0;
+			my $check = 0;
+			$s =~ s/^.*\bdo\b//;
+			$s =~ s/^\s*{//;
+			if ($s =~ s/^\s*\\//) {
+				$continuation = 1;
+			}
+			if ($s =~ s/^\s*?\n//) {
+				$check = 1;
+				$cond_lines++;
+			}
+
+			# Also ignore a loop construct at the end of a
+			# preprocessor statement.
+			if (($prevline =~ /^.\s*#\s*define\s/ ||
+			    $prevline =~ /\\\s*$/) && $continuation == 0) {
+				$check = 0;
+			}
+
+			my $cond_ptr = -1;
+			$continuation = 0;
+			while ($cond_ptr != $cond_lines) {
+				$cond_ptr = $cond_lines;
+
+				# If we see an #else/#elif then the code
+				# is not linear.
+				if ($s =~ /^\s*\#\s*(?:else|elif)/) {
+					$check = 0;
+				}
+
+				# Ignore:
+				#  1) blank lines, they should be at 0,
+				#  2) preprocessor lines, and
+				#  3) labels.
+				if ($continuation ||
+				    $s =~ /^\s*?\n/ ||
+				    $s =~ /^\s*#\s*?/ ||
+				    $s =~ /^\s*$Ident\s*:/) {
+					$continuation = ($s =~ /^.*?\\\n/) ? 1 : 0;
+					if ($s =~ s/^.*?\n//) {
+						$cond_lines++;
+					}
+				}
+			}
+
+			my (undef, $sindent) = line_stats("+" . $s);
+			my $stat_real = raw_line($linenr, $cond_lines);
+
+			# Check if either of these lines are modified, else
+			# this is not this patch's fault.
+			if (!defined($stat_real) ||
+			    $stat !~ /^\+/ && $stat_real !~ /^\+/) {
+				$check = 0;
+			}
+			if (defined($stat_real) && $cond_lines > 1) {
+				$stat_real = "[...]\n$stat_real";
+			}
+
+			#print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s> cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
+
+			if ($check && (($sindent % 8) != 0 ||
+			    ($sindent <= $indent && $s ne ''))) {
+				WARN("SUSPECT_CODE_INDENT",
+				     "suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
+			}
+		}
+
+		# Track the 'values' across context and added lines.
+		my $opline = $line; $opline =~ s/^./ /;
+		my ($curr_values, $curr_vars) =
+				annotate_values($opline . "\n", $prev_values);
+		$curr_values = $prev_values . $curr_values;
+		if ($dbg_values) {
+			my $outline = $opline; $outline =~ s/\t/ /g;
+			print "$linenr > .$outline\n";
+			print "$linenr > $curr_values\n";
+			print "$linenr >  $curr_vars\n";
+		}
+		$prev_values = substr($curr_values, -1);
+
+#ignore lines not being added
+		if ($line=~/^[^\+]/) {next;}
+
+# TEST: allow direct testing of the type matcher.
+		if ($dbg_type) {
+			if ($line =~ /^.\s*$Declare\s*$/) {
+				ERROR("TEST_TYPE",
+				      "TEST: is type\n" . $herecurr);
+			} elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
+				ERROR("TEST_NOT_TYPE",
+				      "TEST: is not type ($1 is)\n". $herecurr);
+			}
+			next;
+		}
+# TEST: allow direct testing of the attribute matcher.
+		if ($dbg_attr) {
+			if ($line =~ /^.\s*$Modifier\s*$/) {
+				ERROR("TEST_ATTR",
+				      "TEST: is attr\n" . $herecurr);
+			} elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
+				ERROR("TEST_NOT_ATTR",
+				      "TEST: is not attr ($1 is)\n". $herecurr);
+			}
+			next;
+		}
+
+# check for initialisation to aggregates open brace on the next line
+		if ($line =~ /^.\s*{/ &&
+		    $prevline =~ /(?:^|[^=])=\s*$/) {
+			ERROR("OPEN_BRACE",
+			      "that open brace { should be on the previous line\n" . $hereprev);
+		}
+
+#
+# Checks which are anchored on the added line.
+#
+
+# check for malformed paths in #include statements (uses RAW line)
+		if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) {
+			my $path = $1;
+			if ($path =~ m{//}) {
+				ERROR("MALFORMED_INCLUDE",
+				      "malformed #include filename\n" .
+					$herecurr);
+			}
+		}
+
+# no C99 // comments
+		if ($line =~ m{//}) {
+			ERROR("C99_COMMENTS",
+			      "do not use C99 // comments\n" . $herecurr);
+		}
+		# Remove C99 comments.
+		$line =~ s@//.*@@;
+		$opline =~ s@//.*@@;
+
+# EXPORT_SYMBOL should immediately follow the thing it is exporting, consider
+# the whole statement.
+#print "APW <$lines[$realline_next - 1]>\n";
+		if (defined $realline_next &&
+		    exists $lines[$realline_next - 1] &&
+		    !defined $suppress_export{$realline_next} &&
+		    ($lines[$realline_next - 1] =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
+		     $lines[$realline_next - 1] =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
+			# Handle definitions which produce identifiers with
+			# a prefix:
+			#   XXX(foo);
+			#   EXPORT_SYMBOL(something_foo);
+			my $name = $1;
+			if ($stat =~ /^(?:.\s*}\s*\n)?.([A-Z_]+)\s*\(\s*($Ident)/ &&
+			    $name =~ /^${Ident}_$2/) {
+#print "FOO C name<$name>\n";
+				$suppress_export{$realline_next} = 1;
+
+			} elsif ($stat !~ /(?:
+				\n.}\s*$|
+				^.DEFINE_$Ident\(\Q$name\E\)|
+				^.DECLARE_$Ident\(\Q$name\E\)|
+				^.LIST_HEAD\(\Q$name\E\)|
+				^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
+				\b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\()
+			    )/x) {
+#print "FOO A<$lines[$realline_next - 1]> stat<$stat> name<$name>\n";
+				$suppress_export{$realline_next} = 2;
+			} else {
+				$suppress_export{$realline_next} = 1;
+			}
+		}
+		if (!defined $suppress_export{$linenr} &&
+		    $prevline =~ /^.\s*$/ &&
+		    ($line =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
+		     $line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
+#print "FOO B <$lines[$linenr - 1]>\n";
+			$suppress_export{$linenr} = 2;
+		}
+		if (defined $suppress_export{$linenr} &&
+		    $suppress_export{$linenr} == 2) {
+			WARN("EXPORT_SYMBOL",
+			     "EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
+		}
+
+# check for global initialisers.
+		if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {
+			ERROR("GLOBAL_INITIALISERS",
+			      "do not initialise globals to 0 or NULL\n" .
+				$herecurr);
+		}
+# check for static initialisers.
+		if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
+			ERROR("INITIALISED_STATIC",
+			      "do not initialise statics to 0 or NULL\n" .
+				$herecurr);
+		}
+
+# check for static const char * arrays.
+		if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) {
+			WARN("STATIC_CONST_CHAR_ARRAY",
+			     "static const char * array should probably be static const char * const\n" .
+				$herecurr);
+               }
+
+# check for static char foo[] = "bar" declarations.
+		if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) {
+			WARN("STATIC_CONST_CHAR_ARRAY",
+			     "static char array declaration should probably be static const char\n" .
+				$herecurr);
+               }
+
+# check for declarations of struct pci_device_id
+		if ($line =~ /\bstruct\s+pci_device_id\s+\w+\s*\[\s*\]\s*\=\s*\{/) {
+			WARN("DEFINE_PCI_DEVICE_TABLE",
+			     "Use DEFINE_PCI_DEVICE_TABLE for struct pci_device_id\n" . $herecurr);
+		}
+
+# check for new typedefs, only function parameters and sparse annotations
+# make sense.
+		if ($line =~ /\btypedef\s/ &&
+		    $line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ &&
+		    $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
+		    $line !~ /\b$typeTypedefs\b/ &&
+		    $line !~ /\b__bitwise(?:__|)\b/) {
+			WARN("NEW_TYPEDEFS",
+			     "do not add new typedefs\n" . $herecurr);
+		}
+
+# * goes on variable not on type
+		# (char*[ const])
+		while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) {
+			#print "AA<$1>\n";
+			my ($from, $to) = ($2, $2);
+
+			# Should start with a space.
+			$to =~ s/^(\S)/ $1/;
+			# Should not end with a space.
+			$to =~ s/\s+$//;
+			# '*'s should not have spaces between.
+			while ($to =~ s/\*\s+\*/\*\*/) {
+			}
+
+			#print "from<$from> to<$to>\n";
+			if ($from ne $to) {
+				ERROR("POINTER_LOCATION",
+				      "\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
+			}
+		}
+		while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) {
+			#print "BB<$1>\n";
+			my ($from, $to, $ident) = ($2, $2, $3);
+
+			# Should start with a space.
+			$to =~ s/^(\S)/ $1/;
+			# Should not end with a space.
+			$to =~ s/\s+$//;
+			# '*'s should not have spaces between.
+			while ($to =~ s/\*\s+\*/\*\*/) {
+			}
+			# Modifiers should have spaces.
+			$to =~ s/(\b$Modifier$)/$1 /;
+
+			#print "from<$from> to<$to> ident<$ident>\n";
+			if ($from ne $to && $ident !~ /^$Modifier$/) {
+				ERROR("POINTER_LOCATION",
+				      "\"foo${from}bar\" should be \"foo${to}bar\"\n" .  $herecurr);
+			}
+		}
+
+# # no BUG() or BUG_ON()
+#		if ($line =~ /\b(BUG|BUG_ON)\b/) {
+#			print "Try to use WARN_ON & Recovery code rather than BUG() or BUG_ON()\n";
+#			print "$herecurr";
+#			$clean = 0;
+#		}
+
+		if ($line =~ /\bLINUX_VERSION_CODE\b/) {
+			WARN("LINUX_VERSION_CODE",
+			     "LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged\n" . $herecurr);
+		}
+
+# check for uses of printk_ratelimit
+		if ($line =~ /\bprintk_ratelimit\s*\(/) {
+			WARN("PRINTK_RATELIMITED",
+"Prefer printk_ratelimited or pr_<level>_ratelimited to printk_ratelimit\n" . $herecurr);
+		}
+
+# printk should use KERN_* levels.  Note that follow on printk's on the
+# same line do not need a level, so we use the current block context
+# to try and find and validate the current printk.  In summary the current
+# printk includes all preceding printk's which have no newline on the end.
+# we assume the first bad printk is the one to report.
+		if ($line =~ /\bprintk\((?!KERN_)\s*"/) {
+			my $ok = 0;
+			for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) {
+				#print "CHECK<$lines[$ln - 1]\n";
+				# we have a preceding printk if it ends
+				# with "\n" ignore it, else it is to blame
+				if ($lines[$ln - 1] =~ m{\bprintk\(}) {
+					if ($rawlines[$ln - 1] !~ m{\\n"}) {
+						$ok = 1;
+					}
+					last;
+				}
+			}
+			if ($ok == 0) {
+				WARN("PRINTK_WITHOUT_KERN_LEVEL",
+				     "printk() should include KERN_ facility level\n" . $herecurr);
+			}
+		}
+
+# function brace can't be on same line, except for #defines of do while,
+# or if closed on same line
+		if (($line=~/$Type\s*$Ident\(.*\).*\s\{/) and
+		    !($line=~/\#\s*define.*do\s\{/) and !($line=~/}/)) {
+			ERROR("OPEN_BRACE",
+			      "open brace '{' following function declarations go on the next line\n" . $herecurr);
+		}
+
+# open braces for enum, union and struct go on the same line.
+		if ($line =~ /^.\s*{/ &&
+		    $prevline =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?\s*$/) {
+			ERROR("OPEN_BRACE",
+			      "open brace '{' following $1 go on the same line\n" . $hereprev);
+		}
+
+# missing space after union, struct or enum definition
+		if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?(?:\s+$Ident)?[=\{]/) {
+		    WARN("SPACING",
+			 "missing space after $1 definition\n" . $herecurr);
+		}
+
+# check for spacing round square brackets; allowed:
+#  1. with a type on the left -- int [] a;
+#  2. at the beginning of a line for slice initialisers -- [0...10] = 5,
+#  3. inside a curly brace -- = { [0...10] = 5 }
+		while ($line =~ /(.*?\s)\[/g) {
+			my ($where, $prefix) = ($-[1], $1);
+			if ($prefix !~ /$Type\s+$/ &&
+			    ($where != 0 || $prefix !~ /^.\s+$/) &&
+			    $prefix !~ /[{,]\s+$/) {
+				ERROR("BRACKET_SPACE",
+				      "space prohibited before open square bracket '['\n" . $herecurr);
+			}
+		}
+
+# check for spaces between functions and their parentheses.
+		while ($line =~ /($Ident)\s+\(/g) {
+			my $name = $1;
+			my $ctx_before = substr($line, 0, $-[1]);
+			my $ctx = "$ctx_before$name";
+
+			# Ignore those directives where spaces _are_ permitted.
+			if ($name =~ /^(?:
+				if|for|while|switch|return|case|
+				volatile|__volatile__|
+				__attribute__|format|__extension__|
+				asm|__asm__)$/x)
+			{
+
+			# cpp #define statements have non-optional spaces, ie
+			# if there is a space between the name and the open
+			# parenthesis it is simply not a parameter group.
+			} elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) {
+
+			# cpp #elif statement condition may start with a (
+			} elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) {
+
+			# If this whole things ends with a type its most
+			# likely a typedef for a function.
+			} elsif ($ctx =~ /$Type$/) {
+
+			} else {
+				WARN("SPACING",
+				     "space prohibited between function name and open parenthesis '('\n" . $herecurr);
+			}
+		}
+# Check operator spacing.
+		if (!($line=~/\#\s*include/)) {
+			my $ops = qr{
+				<<=|>>=|<=|>=|==|!=|
+				\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
+				=>|->|<<|>>|<|>|=|!|~|
+				&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
+				\?|:
+			}x;
+			my @elements = split(/($ops|;)/, $opline);
+			my $off = 0;
+
+			my $blank = copy_spacing($opline);
+
+			for (my $n = 0; $n < $#elements; $n += 2) {
+				$off += length($elements[$n]);
+
+				# Pick up the preceding and succeeding characters.
+				my $ca = substr($opline, 0, $off);
+				my $cc = '';
+				if (length($opline) >= ($off + length($elements[$n + 1]))) {
+					$cc = substr($opline, $off + length($elements[$n + 1]));
+				}
+				my $cb = "$ca$;$cc";
+
+				my $a = '';
+				$a = 'V' if ($elements[$n] ne '');
+				$a = 'W' if ($elements[$n] =~ /\s$/);
+				$a = 'C' if ($elements[$n] =~ /$;$/);
+				$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
+				$a = 'O' if ($elements[$n] eq '');
+				$a = 'E' if ($ca =~ /^\s*$/);
+
+				my $op = $elements[$n + 1];
+
+				my $c = '';
+				if (defined $elements[$n + 2]) {
+					$c = 'V' if ($elements[$n + 2] ne '');
+					$c = 'W' if ($elements[$n + 2] =~ /^\s/);
+					$c = 'C' if ($elements[$n + 2] =~ /^$;/);
+					$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
+					$c = 'O' if ($elements[$n + 2] eq '');
+					$c = 'E' if ($elements[$n + 2] =~ /^\s*\\$/);
+				} else {
+					$c = 'E';
+				}
+
+				my $ctx = "${a}x${c}";
+
+				my $at = "(ctx:$ctx)";
+
+				my $ptr = substr($blank, 0, $off) . "^";
+				my $hereptr = "$hereline$ptr\n";
+
+				# Pull out the value of this operator.
+				my $op_type = substr($curr_values, $off + 1, 1);
+
+				# Get the full operator variant.
+				my $opv = $op . substr($curr_vars, $off, 1);
+
+				# Ignore operators passed as parameters.
+				if ($op_type ne 'V' &&
+				    $ca =~ /\s$/ && $cc =~ /^\s*,/) {
+
+#				# Ignore comments
+#				} elsif ($op =~ /^$;+$/) {
+
+				# ; should have either the end of line or a space or \ after it
+				} elsif ($op eq ';') {
+					if ($ctx !~ /.x[WEBC]/ &&
+					    $cc !~ /^\\/ && $cc !~ /^;/) {
+						ERROR("SPACING",
+						      "space required after that '$op' $at\n" . $hereptr);
+					}
+
+				# // is a comment
+				} elsif ($op eq '//') {
+
+				# No spaces for:
+				#   ->
+				#   :   when part of a bitfield
+				} elsif ($op eq '->' || $opv eq ':B') {
+					if ($ctx =~ /Wx.|.xW/) {
+						ERROR("SPACING",
+						      "spaces prohibited around that '$op' $at\n" . $hereptr);
+					}
+
+				# , must have a space on the right.
+				} elsif ($op eq ',') {
+					if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
+						ERROR("SPACING",
+						      "space required after that '$op' $at\n" . $hereptr);
+					}
+
+				# '*' as part of a type definition -- reported already.
+				} elsif ($opv eq '*_') {
+					#warn "'*' is part of type\n";
+
+				# unary operators should have a space before and
+				# none after.  May be left adjacent to another
+				# unary operator, or a cast
+				} elsif ($op eq '!' || $op eq '~' ||
+					 $opv eq '*U' || $opv eq '-U' ||
+					 $opv eq '&U' || $opv eq '&&U') {
+					if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
+						ERROR("SPACING",
+						      "space required before that '$op' $at\n" . $hereptr);
+					}
+					if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
+						# A unary '*' may be const
+
+					} elsif ($ctx =~ /.xW/) {
+						ERROR("SPACING",
+						      "space prohibited after that '$op' $at\n" . $hereptr);
+					}
+
+				# unary ++ and unary -- are allowed no space on one side.
+				} elsif ($op eq '++' or $op eq '--') {
+					if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
+						ERROR("SPACING",
+						      "space required one side of that '$op' $at\n" . $hereptr);
+					}
+					if ($ctx =~ /Wx[BE]/ ||
+					    ($ctx =~ /Wx./ && $cc =~ /^;/)) {
+						ERROR("SPACING",
+						      "space prohibited before that '$op' $at\n" . $hereptr);
+					}
+					if ($ctx =~ /ExW/) {
+						ERROR("SPACING",
+						      "space prohibited after that '$op' $at\n" . $hereptr);
+					}
+
+
+				# << and >> may either have or not have spaces both sides
+				} elsif ($op eq '<<' or $op eq '>>' or
+					 $op eq '&' or $op eq '^' or $op eq '|' or
+					 $op eq '+' or $op eq '-' or
+					 $op eq '*' or $op eq '/' or
+					 $op eq '%')
+				{
+					if ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
+						ERROR("SPACING",
+						      "need consistent spacing around '$op' $at\n" .
+							$hereptr);
+					}
+
+				# A colon needs no spaces before when it is
+				# terminating a case value or a label.
+				} elsif ($opv eq ':C' || $opv eq ':L') {
+					if ($ctx =~ /Wx./) {
+						ERROR("SPACING",
+						      "space prohibited before that '$op' $at\n" . $hereptr);
+					}
+
+				# All the others need spaces both sides.
+				} elsif ($ctx !~ /[EWC]x[CWE]/) {
+					my $ok = 0;
+
+					# Ignore email addresses <foo@bar>
+					if (($op eq '<' &&
+					     $cc =~ /^\S+\@\S+>/) ||
+					    ($op eq '>' &&
+					     $ca =~ /<\S+\@\S+$/))
+					{
+						$ok = 1;
+					}
+
+					# Ignore ?:
+					if (($opv eq ':O' && $ca =~ /\?$/) ||
+					    ($op eq '?' && $cc =~ /^:/)) {
+						$ok = 1;
+					}
+
+					if ($ok == 0) {
+						ERROR("SPACING",
+						      "spaces required around that '$op' $at\n" . $hereptr);
+					}
+				}
+				$off += length($elements[$n + 1]);
+			}
+		}
+
+# check for multiple assignments
+		if ($line =~ /^.\s*$Lval\s*=\s*$Lval\s*=(?!=)/) {
+			CHK("MULTIPLE_ASSIGNMENTS",
+			    "multiple assignments should be avoided\n" . $herecurr);
+		}
+
+## # check for multiple declarations, allowing for a function declaration
+## # continuation.
+##		if ($line =~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Ident.*/ &&
+##		    $line !~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Type\s*$Ident.*/) {
+##
+##			# Remove any bracketed sections to ensure we do not
+##			# falsly report the parameters of functions.
+##			my $ln = $line;
+##			while ($ln =~ s/\([^\(\)]*\)//g) {
+##			}
+##			if ($ln =~ /,/) {
+##				WARN("MULTIPLE_DECLARATION",
+##				     "declaring multiple variables together should be avoided\n" . $herecurr);
+##			}
+##		}
+
+#need space before brace following if, while, etc
+		if (($line =~ /\(.*\)\{/ && $line !~ /\($Type\)\{/) ||
+		    $line =~ /do\{/) {
+			ERROR("SPACING",
+			      "space required before the open brace '{'\n" . $herecurr);
+		}
+
+# closing brace should have a space following it when it has anything
+# on the line
+		if ($line =~ /}(?!(?:,|;|\)))\S/) {
+			ERROR("SPACING",
+			      "space required after that close brace '}'\n" . $herecurr);
+		}
+
+# check spacing on square brackets
+		if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
+			ERROR("SPACING",
+			      "space prohibited after that open square bracket '['\n" . $herecurr);
+		}
+		if ($line =~ /\s\]/) {
+			ERROR("SPACING",
+			      "space prohibited before that close square bracket ']'\n" . $herecurr);
+		}
+
+# check spacing on parentheses
+		if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
+		    $line !~ /for\s*\(\s+;/) {
+			ERROR("SPACING",
+			      "space prohibited after that open parenthesis '('\n" . $herecurr);
+		}
+		if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
+		    $line !~ /for\s*\(.*;\s+\)/ &&
+		    $line !~ /:\s+\)/) {
+			ERROR("SPACING",
+			      "space prohibited before that close parenthesis ')'\n" . $herecurr);
+		}
+
+#goto labels aren't indented, allow a single space however
+		if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
+		   !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
+			WARN("INDENTED_LABEL",
+			     "labels should not be indented\n" . $herecurr);
+		}
+
+# Return is not a function.
+		if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) {
+			my $spacing = $1;
+			my $value = $2;
+
+			# Flatten any parentheses
+			$value =~ s/\(/ \(/g;
+			$value =~ s/\)/\) /g;
+			while ($value =~ s/\[[^\[\]]*\]/1/ ||
+			       $value !~ /(?:$Ident|-?$Constant)\s*
+					     $Compare\s*
+					     (?:$Ident|-?$Constant)/x &&
+			       $value =~ s/\([^\(\)]*\)/1/) {
+			}
+#print "value<$value>\n";
+			if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) {
+				ERROR("RETURN_PARENTHESES",
+				      "return is not a function, parentheses are not required\n" . $herecurr);
+
+			} elsif ($spacing !~ /\s+/) {
+				ERROR("SPACING",
+				      "space required before the open parenthesis '('\n" . $herecurr);
+			}
+		}
+# Return of what appears to be an errno should normally be -'ve
+		if ($line =~ /^.\s*return\s*(E[A-Z]*)\s*;/) {
+			my $name = $1;
+			if ($name ne 'EOF' && $name ne 'ERROR') {
+				WARN("USE_NEGATIVE_ERRNO",
+				     "return of an errno should typically be -ve (return -$1)\n" . $herecurr);
+			}
+		}
+
+# Need a space before open parenthesis after if, while etc
+		if ($line=~/\b(if|while|for|switch)\(/) {
+			ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr);
+		}
+
+# Check for illegal assignment in if conditional -- and check for trailing
+# statements after the conditional.
+		if ($line =~ /do\s*(?!{)/) {
+			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+				ctx_statement_block($linenr, $realcnt, 0)
+					if (!defined $stat);
+			my ($stat_next) = ctx_statement_block($line_nr_next,
+						$remain_next, $off_next);
+			$stat_next =~ s/\n./\n /g;
+			##print "stat<$stat> stat_next<$stat_next>\n";
+
+			if ($stat_next =~ /^\s*while\b/) {
+				# If the statement carries leading newlines,
+				# then count those as offsets.
+				my ($whitespace) =
+					($stat_next =~ /^((?:\s*\n[+-])*\s*)/s);
+				my $offset =
+					statement_rawlines($whitespace) - 1;
+
+				$suppress_whiletrailers{$line_nr_next +
+								$offset} = 1;
+			}
+		}
+		if (!defined $suppress_whiletrailers{$linenr} &&
+		    $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
+			my ($s, $c) = ($stat, $cond);
+
+			if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) {
+				ERROR("ASSIGN_IN_IF",
+				      "do not use assignment in if condition\n" . $herecurr);
+			}
+
+			# Find out what is on the end of the line after the
+			# conditional.
+			substr($s, 0, length($c), '');
+			$s =~ s/\n.*//g;
+			$s =~ s/$;//g;	# Remove any comments
+			if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ &&
+			    $c !~ /}\s*while\s*/)
+			{
+				# Find out how long the conditional actually is.
+				my @newlines = ($c =~ /\n/gs);
+				my $cond_lines = 1 + $#newlines;
+				my $stat_real = '';
+
+				$stat_real = raw_line($linenr, $cond_lines)
+							. "\n" if ($cond_lines);
+				if (defined($stat_real) && $cond_lines > 1) {
+					$stat_real = "[...]\n$stat_real";
+				}
+
+				ERROR("TRAILING_STATEMENTS",
+				      "trailing statements should be on next line\n" . $herecurr . $stat_real);
+			}
+		}
+
+# Check for bitwise tests written as boolean
+		if ($line =~ /
+			(?:
+				(?:\[|\(|\&\&|\|\|)
+				\s*0[xX][0-9]+\s*
+				(?:\&\&|\|\|)
+			|
+				(?:\&\&|\|\|)
+				\s*0[xX][0-9]+\s*
+				(?:\&\&|\|\||\)|\])
+			)/x)
+		{
+			WARN("HEXADECIMAL_BOOLEAN_TEST",
+			     "boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
+		}
+
+# if and else should not have general statements after it
+		if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/) {
+			my $s = $1;
+			$s =~ s/$;//g;	# Remove any comments
+			if ($s !~ /^\s*(?:\sif|(?:{|)\s*\\?\s*$)/) {
+				ERROR("TRAILING_STATEMENTS",
+				      "trailing statements should be on next line\n" . $herecurr);
+			}
+		}
+# if should not continue a brace
+		if ($line =~ /}\s*if\b/) {
+			ERROR("TRAILING_STATEMENTS",
+			      "trailing statements should be on next line\n" .
+				$herecurr);
+		}
+# case and default should not have general statements after them
+		if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
+		    $line !~ /\G(?:
+			(?:\s*$;*)(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$|
+			\s*return\s+
+		    )/xg)
+		{
+			ERROR("TRAILING_STATEMENTS",
+			      "trailing statements should be on next line\n" . $herecurr);
+		}
+
+		# Check for }<nl>else {, these must be at the same
+		# indent level to be relevant to each other.
+		if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ and
+						$previndent == $indent) {
+			ERROR("ELSE_AFTER_BRACE",
+			      "else should follow close brace '}'\n" . $hereprev);
+		}
+
+		if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and
+						$previndent == $indent) {
+			my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
+
+			# Find out what is on the end of the line after the
+			# conditional.
+			substr($s, 0, length($c), '');
+			$s =~ s/\n.*//g;
+
+			if ($s =~ /^\s*;/) {
+				ERROR("WHILE_AFTER_BRACE",
+				      "while should follow close brace '}'\n" . $hereprev);
+			}
+		}
+
+#studly caps, commented out until figure out how to distinguish between use of existing and adding new
+#		if (($line=~/[\w_][a-z\d]+[A-Z]/) and !($line=~/print/)) {
+#		    print "No studly caps, use _\n";
+#		    print "$herecurr";
+#		    $clean = 0;
+#		}
+
+#no spaces allowed after \ in define
+		if ($line=~/\#\s*define.*\\\s$/) {
+			WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
+			     "Whitepspace after \\ makes next lines useless\n" . $herecurr);
+		}
+
+#warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
+		if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
+			my $file = "$1.h";
+			my $checkfile = "include/linux/$file";
+			if (-f "$root/$checkfile" &&
+			    $realfile ne $checkfile &&
+			    $1 !~ /$allowed_asm_includes/)
+			{
+				if ($realfile =~ m{^arch/}) {
+					CHK("ARCH_INCLUDE_LINUX",
+					    "Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+				} else {
+					WARN("INCLUDE_LINUX",
+					     "Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+				}
+			}
+		}
+
+# multi-statement macros should be enclosed in a do while loop, grab the
+# first statement and ensure its the whole macro if its not enclosed
+# in a known good container
+		if ($realfile !~ m@/vmlinux.lds.h$@ &&
+		    $line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
+			my $ln = $linenr;
+			my $cnt = $realcnt;
+			my ($off, $dstat, $dcond, $rest);
+			my $ctx = '';
+			($dstat, $dcond, $ln, $cnt, $off) =
+				ctx_statement_block($linenr, $realcnt, 0);
+			$ctx = $dstat;
+			#print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
+			#print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
+
+			$dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//;
+			$dstat =~ s/$;//g;
+			$dstat =~ s/\\\n.//g;
+			$dstat =~ s/^\s*//s;
+			$dstat =~ s/\s*$//s;
+
+			# Flatten any parentheses and braces
+			while ($dstat =~ s/\([^\(\)]*\)/1/ ||
+			       $dstat =~ s/\{[^\{\}]*\}/1/ ||
+			       $dstat =~ s/\[[^\[\]]*\]/1/)
+			{
+			}
+
+			# Flatten any obvious string concatentation.
+			while ($dstat =~ s/("X*")\s*$Ident/$1/ ||
+			       $dstat =~ s/$Ident\s*("X*")/$1/)
+			{
+			}
+
+			my $exceptions = qr{
+				$Declare|
+				module_param_named|
+				MODULE_PARAM_DESC|
+				DECLARE_PER_CPU|
+				DEFINE_PER_CPU|
+				__typeof__\(|
+				union|
+				struct|
+				\.$Ident\s*=\s*|
+				^\"|\"$
+			}x;
+			#print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
+			if ($dstat ne '' &&
+			    $dstat !~ /^(?:$Ident|-?$Constant),$/ &&			# 10, // foo(),
+			    $dstat !~ /^(?:$Ident|-?$Constant);$/ &&			# foo();
+			    $dstat !~ /^[!~-]?(?:$Ident|$Constant)$/ &&		# 10 // foo() // !foo // ~foo // -foo
+			    $dstat !~ /^'X'$/ &&					# character constants
+			    $dstat !~ /$exceptions/ &&
+			    $dstat !~ /^\.$Ident\s*=/ &&				# .foo =
+			    $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ &&	# do {...} while (...); // do {...} while (...)
+			    $dstat !~ /^for\s*$Constant$/ &&				# for (...)
+			    $dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ &&	# for (...) bar()
+			    $dstat !~ /^do\s*{/ &&					# do {...
+			    $dstat !~ /^\(\{/)						# ({...
+			{
+				$ctx =~ s/\n*$//;
+				my $herectx = $here . "\n";
+				my $cnt = statement_rawlines($ctx);
+
+				for (my $n = 0; $n < $cnt; $n++) {
+					$herectx .= raw_line($linenr, $n) . "\n";
+				}
+
+				if ($dstat =~ /;/) {
+					ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
+					      "Macros with multiple statements should be enclosed in a do - while loop\n" . "$herectx");
+				} else {
+					ERROR("COMPLEX_MACRO",
+					      "Macros with complex values should be enclosed in parenthesis\n" . "$herectx");
+				}
+			}
+		}
+
+# make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
+# all assignments may have only one of the following with an assignment:
+#	.
+#	ALIGN(...)
+#	VMLINUX_SYMBOL(...)
+		if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
+			WARN("MISSING_VMLINUX_SYMBOL",
+			     "vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
+		}
+
+# check for redundant bracing round if etc
+		if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
+			my ($level, $endln, @chunks) =
+				ctx_statement_full($linenr, $realcnt, 1);
+			#print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
+			#print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
+			if ($#chunks > 0 && $level == 0) {
+				my @allowed = ();
+				my $allow = 0;
+				my $seen = 0;
+				my $herectx = $here . "\n";
+				my $ln = $linenr - 1;
+				for my $chunk (@chunks) {
+					my ($cond, $block) = @{$chunk};
+
+					# If the condition carries leading newlines, then count those as offsets.
+					my ($whitespace) = ($cond =~ /^((?:\s*\n[+-])*\s*)/s);
+					my $offset = statement_rawlines($whitespace) - 1;
+
+					$allowed[$allow] = 0;
+					#print "COND<$cond> whitespace<$whitespace> offset<$offset>\n";
+
+					# We have looked at and allowed this specific line.
+					$suppress_ifbraces{$ln + $offset} = 1;
+
+					$herectx .= "$rawlines[$ln + $offset]\n[...]\n";
+					$ln += statement_rawlines($block) - 1;
+
+					substr($block, 0, length($cond), '');
+
+					$seen++ if ($block =~ /^\s*{/);
+
+					#print "cond<$cond> block<$block> allowed<$allowed[$allow]>\n";
+					if (statement_lines($cond) > 1) {
+						#print "APW: ALLOWED: cond<$cond>\n";
+						$allowed[$allow] = 1;
+					}
+					if ($block =~/\b(?:if|for|while)\b/) {
+						#print "APW: ALLOWED: block<$block>\n";
+						$allowed[$allow] = 1;
+					}
+					if (statement_block_size($block) > 1) {
+						#print "APW: ALLOWED: lines block<$block>\n";
+						$allowed[$allow] = 1;
+					}
+					$allow++;
+				}
+				if ($seen) {
+					my $sum_allowed = 0;
+					foreach (@allowed) {
+						$sum_allowed += $_;
+					}
+					if ($sum_allowed == 0) {
+						WARN("BRACES",
+						     "braces {} are not necessary for any arm of this statement\n" . $herectx);
+					} elsif ($sum_allowed != $allow &&
+						 $seen != $allow) {
+						CHK("BRACES",
+						    "braces {} should be used on all arms of this statement\n" . $herectx);
+					}
+				}
+			}
+		}
+		if (!defined $suppress_ifbraces{$linenr - 1} &&
+					$line =~ /\b(if|while|for|else)\b/) {
+			my $allowed = 0;
+
+			# Check the pre-context.
+			if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
+				#print "APW: ALLOWED: pre<$1>\n";
+				$allowed = 1;
+			}
+
+			my ($level, $endln, @chunks) =
+				ctx_statement_full($linenr, $realcnt, $-[0]);
+
+			# Check the condition.
+			my ($cond, $block) = @{$chunks[0]};
+			#print "CHECKING<$linenr> cond<$cond> block<$block>\n";
+			if (defined $cond) {
+				substr($block, 0, length($cond), '');
+			}
+			if (statement_lines($cond) > 1) {
+				#print "APW: ALLOWED: cond<$cond>\n";
+				$allowed = 1;
+			}
+			if ($block =~/\b(?:if|for|while)\b/) {
+				#print "APW: ALLOWED: block<$block>\n";
+				$allowed = 1;
+			}
+			if (statement_block_size($block) > 1) {
+				#print "APW: ALLOWED: lines block<$block>\n";
+				$allowed = 1;
+			}
+			# Check the post-context.
+			if (defined $chunks[1]) {
+				my ($cond, $block) = @{$chunks[1]};
+				if (defined $cond) {
+					substr($block, 0, length($cond), '');
+				}
+				if ($block =~ /^\s*\{/) {
+					#print "APW: ALLOWED: chunk-1 block<$block>\n";
+					$allowed = 1;
+				}
+			}
+			if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
+				my $herectx = $here . "\n";
+				my $cnt = statement_rawlines($block);
+
+				for (my $n = 0; $n < $cnt; $n++) {
+					$herectx .= raw_line($linenr, $n) . "\n";
+				}
+
+				WARN("BRACES",
+				     "braces {} are not necessary for single statement blocks\n" . $herectx);
+			}
+		}
+
+# no volatiles please
+		my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b};
+		if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) {
+			WARN("VOLATILE",
+			     "Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr);
+		}
+
+# warn about #if 0
+		if ($line =~ /^.\s*\#\s*if\s+0\b/) {
+			CHK("REDUNDANT_CODE",
+			    "if this code is redundant consider removing it\n" .
+				$herecurr);
+		}
+
+# check for needless kfree() checks
+		if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
+			my $expr = $1;
+			if ($line =~ /\bkfree\(\Q$expr\E\);/) {
+				WARN("NEEDLESS_KFREE",
+				     "kfree(NULL) is safe this check is probably not required\n" . $hereprev);
+			}
+		}
+# check for needless usb_free_urb() checks
+		if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
+			my $expr = $1;
+			if ($line =~ /\busb_free_urb\(\Q$expr\E\);/) {
+				WARN("NEEDLESS_USB_FREE_URB",
+				     "usb_free_urb(NULL) is safe this check is probably not required\n" . $hereprev);
+			}
+		}
+
+# prefer usleep_range over udelay
+		if ($line =~ /\budelay\s*\(\s*(\w+)\s*\)/) {
+			# ignore udelay's < 10, however
+			if (! (($1 =~ /(\d+)/) && ($1 < 10)) ) {
+				CHK("USLEEP_RANGE",
+				    "usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $line);
+			}
+		}
+
+# warn about unexpectedly long msleep's
+		if ($line =~ /\bmsleep\s*\((\d+)\);/) {
+			if ($1 < 20) {
+				WARN("MSLEEP",
+				     "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line);
+			}
+		}
+
+# warn about #ifdefs in C files
+#		if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
+#			print "#ifdef in C files should be avoided\n";
+#			print "$herecurr";
+#			$clean = 0;
+#		}
+
+# warn about spacing in #ifdefs
+		if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) {
+			ERROR("SPACING",
+			      "exactly one space required after that #$1\n" . $herecurr);
+		}
+
+# check for spinlock_t definitions without a comment.
+		if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ ||
+		    $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) {
+			my $which = $1;
+			if (!ctx_has_comment($first_line, $linenr)) {
+				CHK("UNCOMMENTED_DEFINITION",
+				    "$1 definition without comment\n" . $herecurr);
+			}
+		}
+# check for memory barriers without a comment.
+		if ($line =~ /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/) {
+			if (!ctx_has_comment($first_line, $linenr)) {
+				CHK("MEMORY_BARRIER",
+				    "memory barrier without comment\n" . $herecurr);
+			}
+		}
+# check of hardware specific defines
+		if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
+			CHK("ARCH_DEFINES",
+			    "architecture specific defines should be avoided\n" .  $herecurr);
+		}
+
+# Check that the storage class is at the beginning of a declaration
+		if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) {
+			WARN("STORAGE_CLASS",
+			     "storage class should be at the beginning of the declaration\n" . $herecurr)
+		}
+
+# check the location of the inline attribute, that it is between
+# storage class and type.
+		if ($line =~ /\b$Type\s+$Inline\b/ ||
+		    $line =~ /\b$Inline\s+$Storage\b/) {
+			ERROR("INLINE_LOCATION",
+			      "inline keyword should sit between storage class and type\n" . $herecurr);
+		}
+
+# Check for __inline__ and __inline, prefer inline
+		if ($line =~ /\b(__inline__|__inline)\b/) {
+			WARN("INLINE",
+			     "plain inline is preferred over $1\n" . $herecurr);
+		}
+
+# Check for __attribute__ packed, prefer __packed
+		if ($line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
+			WARN("PREFER_PACKED",
+			     "__packed is preferred over __attribute__((packed))\n" . $herecurr);
+		}
+
+# Check for __attribute__ aligned, prefer __aligned
+		if ($line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
+			WARN("PREFER_ALIGNED",
+			     "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
+		}
+
+# Check for __attribute__ format(printf, prefer __printf
+		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
+			WARN("PREFER_PRINTF",
+			     "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr);
+		}
+
+# Check for __attribute__ format(scanf, prefer __scanf
+		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
+			WARN("PREFER_SCANF",
+			     "__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr);
+		}
+
+# check for sizeof(&)
+		if ($line =~ /\bsizeof\s*\(\s*\&/) {
+			WARN("SIZEOF_ADDRESS",
+			     "sizeof(& should be avoided\n" . $herecurr);
+		}
+
+# check for line continuations in quoted strings with odd counts of "
+		if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) {
+			WARN("LINE_CONTINUATIONS",
+			     "Avoid line continuations in quoted strings\n" . $herecurr);
+		}
+
+# Check for misused memsets
+		if ($^V && $^V ge 5.10.0 &&
+		    defined $stat &&
+		    $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/s) {
+
+			my $ms_addr = $2;
+			my $ms_val = $7;
+			my $ms_size = $12;
+
+			if ($ms_size =~ /^(0x|)0$/i) {
+				ERROR("MEMSET",
+				      "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
+			} elsif ($ms_size =~ /^(0x|)1$/i) {
+				WARN("MEMSET",
+				     "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
+			}
+		}
+
+# typecasts on min/max could be min_t/max_t
+		if ($^V && $^V ge 5.10.0 &&
+		    defined $stat &&
+		    $stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) {
+			if (defined $2 || defined $7) {
+				my $call = $1;
+				my $cast1 = deparenthesize($2);
+				my $arg1 = $3;
+				my $cast2 = deparenthesize($7);
+				my $arg2 = $8;
+				my $cast;
+
+				if ($cast1 ne "" && $cast2 ne "" && $cast1 ne $cast2) {
+					$cast = "$cast1 or $cast2";
+				} elsif ($cast1 ne "") {
+					$cast = $cast1;
+				} else {
+					$cast = $cast2;
+				}
+				WARN("MINMAX",
+				     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . "$here\n$stat\n");
+			}
+		}
+
+# check for new externs in .c files.
+		if ($realfile =~ /\.c$/ && defined $stat &&
+		    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
+		{
+			my $function_name = $1;
+			my $paren_space = $2;
+
+			my $s = $stat;
+			if (defined $cond) {
+				substr($s, 0, length($cond), '');
+			}
+			if ($s =~ /^\s*;/ &&
+			    $function_name ne 'uninitialized_var')
+			{
+				WARN("AVOID_EXTERNS",
+				     "externs should be avoided in .c files\n" .  $herecurr);
+			}
+
+			if ($paren_space =~ /\n/) {
+				WARN("FUNCTION_ARGUMENTS",
+				     "arguments for function declarations should follow identifier\n" . $herecurr);
+			}
+
+		} elsif ($realfile =~ /\.c$/ && defined $stat &&
+		    $stat =~ /^.\s*extern\s+/)
+		{
+			WARN("AVOID_EXTERNS",
+			     "externs should be avoided in .c files\n" .  $herecurr);
+		}
+
+# check for pointless casting of kmalloc return
+		if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) {
+			WARN("UNNECESSARY_CASTS",
+			     "unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
+		}
+
+# check for multiple semicolons
+		if ($line =~ /;\s*;\s*$/) {
+		    WARN("ONE_SEMICOLON",
+			 "Statements terminations use 1 semicolon\n" . $herecurr);
+		}
+
+# check for gcc specific __FUNCTION__
+		if ($line =~ /__FUNCTION__/) {
+			WARN("USE_FUNC",
+			     "__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
+		}
+
+# check for use of yield()
+		if ($line =~ /\byield\s*\(\s*\)/) {
+			WARN("YIELD",
+			     "Using yield() is generally wrong. See yield() kernel-doc (sched/core.c)\n"  . $herecurr);
+		}
+
+# check for semaphores initialized locked
+		if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
+			WARN("CONSIDER_COMPLETION",
+			     "consider using a completion\n" . $herecurr);
+		}
+
+# recommend kstrto* over simple_strto* and strict_strto*
+		if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) {
+			WARN("CONSIDER_KSTRTO",
+			     "$1 is obsolete, use k$3 instead\n" . $herecurr);
+		}
+
+# check for __initcall(), use device_initcall() explicitly please
+		if ($line =~ /^.\s*__initcall\s*\(/) {
+			WARN("USE_DEVICE_INITCALL",
+			     "please use device_initcall() instead of __initcall()\n" . $herecurr);
+		}
+
+# check for various ops structs, ensure they are const.
+		my $struct_ops = qr{acpi_dock_ops|
+				address_space_operations|
+				backlight_ops|
+				block_device_operations|
+				dentry_operations|
+				dev_pm_ops|
+				dma_map_ops|
+				extent_io_ops|
+				file_lock_operations|
+				file_operations|
+				hv_ops|
+				ide_dma_ops|
+				intel_dvo_dev_ops|
+				item_operations|
+				iwl_ops|
+				kgdb_arch|
+				kgdb_io|
+				kset_uevent_ops|
+				lock_manager_operations|
+				microcode_ops|
+				mtrr_ops|
+				neigh_ops|
+				nlmsvc_binding|
+				pci_raw_ops|
+				pipe_buf_operations|
+				platform_hibernation_ops|
+				platform_suspend_ops|
+				proto_ops|
+				rpc_pipe_ops|
+				seq_operations|
+				snd_ac97_build_ops|
+				soc_pcmcia_socket_ops|
+				stacktrace_ops|
+				sysfs_ops|
+				tty_operations|
+				usb_mon_operations|
+				wd_ops}x;
+		if ($line !~ /\bconst\b/ &&
+		    $line =~ /\bstruct\s+($struct_ops)\b/) {
+			WARN("CONST_STRUCT",
+			     "struct $1 should normally be const\n" .
+				$herecurr);
+		}
+
+# use of NR_CPUS is usually wrong
+# ignore definitions of NR_CPUS and usage to define arrays as likely right
+		if ($line =~ /\bNR_CPUS\b/ &&
+		    $line !~ /^.\s*\s*#\s*if\b.*\bNR_CPUS\b/ &&
+		    $line !~ /^.\s*\s*#\s*define\b.*\bNR_CPUS\b/ &&
+		    $line !~ /^.\s*$Declare\s.*\[[^\]]*NR_CPUS[^\]]*\]/ &&
+		    $line !~ /\[[^\]]*\.\.\.[^\]]*NR_CPUS[^\]]*\]/ &&
+		    $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\.[^\]]*\]/)
+		{
+			WARN("NR_CPUS",
+			     "usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
+		}
+
+# check for %L{u,d,i} in strings
+		my $string;
+		while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
+			$string = substr($rawline, $-[1], $+[1] - $-[1]);
+			$string =~ s/%%/__/g;
+			if ($string =~ /(?<!%)%L[udi]/) {
+				WARN("PRINTF_L",
+				     "\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
+				last;
+			}
+		}
+
+# whine mightly about in_atomic
+		if ($line =~ /\bin_atomic\s*\(/) {
+			if ($realfile =~ m@^drivers/@) {
+				ERROR("IN_ATOMIC",
+				      "do not use in_atomic in drivers\n" . $herecurr);
+			} elsif ($realfile !~ m@^kernel/@) {
+				WARN("IN_ATOMIC",
+				     "use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
+			}
+		}
+
+# check for lockdep_set_novalidate_class
+		if ($line =~ /^.\s*lockdep_set_novalidate_class\s*\(/ ||
+		    $line =~ /__lockdep_no_validate__\s*\)/ ) {
+			if ($realfile !~ m@^kernel/lockdep@ &&
+			    $realfile !~ m@^include/linux/lockdep@ &&
+			    $realfile !~ m@^drivers/base/core@) {
+				ERROR("LOCKDEP",
+				      "lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr);
+			}
+		}
+
+		if ($line =~ /debugfs_create_file.*S_IWUGO/ ||
+		    $line =~ /DEVICE_ATTR.*S_IWUGO/ ) {
+			WARN("EXPORTED_WORLD_WRITABLE",
+			     "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
+		}
+	}
+
+	# If we have no input at all, then there is nothing to report on
+	# so just keep quiet.
+	if ($#rawlines == -1) {
+		exit(0);
+	}
+
+	# In mailback mode only produce a report in the negative, for
+	# things that appear to be patches.
+	if ($mailback && ($clean == 1 || !$is_patch)) {
+		exit(0);
+	}
+
+	# This is not a patch, and we are are in 'no-patch' mode so
+	# just keep quiet.
+	if (!$chk_patch && !$is_patch) {
+		exit(0);
+	}
+
+	if (!$is_patch) {
+		ERROR("NOT_UNIFIED_DIFF",
+		      "Does not appear to be a unified-diff format patch\n");
+	}
+	if ($is_patch && $chk_signoff && $signoff == 0) {
+		ERROR("MISSING_SIGN_OFF",
+		      "Missing Signed-off-by: line(s)\n");
+	}
+
+	print report_dump();
+	if ($summary && !($clean == 1 && $quiet == 1)) {
+		print "$filename " if ($summary_file);
+		print "total: $cnt_error errors, $cnt_warn warnings, " .
+			(($check)? "$cnt_chk checks, " : "") .
+			"$cnt_lines lines checked\n";
+		print "\n" if ($quiet == 0);
+	}
+
+	if ($quiet == 0) {
+
+		if ($^V lt 5.10.0) {
+			print("NOTE: perl $^V is not modern enough to detect all possible issues.\n");
+			print("An upgrade to at least perl v5.10.0 is suggested.\n\n");
+		}
+
+		# If there were whitespace errors which cleanpatch can fix
+		# then suggest that.
+		if ($rpt_cleaners) {
+			print "NOTE: whitespace errors detected, you may wish to use scripts/cleanpatch or\n";
+			print "      scripts/cleanfile\n\n";
+			$rpt_cleaners = 0;
+		}
+	}
+
+	if ($quiet == 0 && keys %ignore_type) {
+	    print "NOTE: Ignored message types:";
+	    foreach my $ignore (sort keys %ignore_type) {
+		print " $ignore";
+	    }
+	    print "\n\n";
+	}
+
+	if ($clean == 1 && $quiet == 0) {
+		print "$vname has no obvious style problems and is ready for submission.\n"
+	}
+	if ($clean == 0 && $quiet == 0) {
+		print << "EOM";
+$vname has style problems, please review.
+
+If any of these errors are false positives, please report
+them to the maintainer, see CHECKPATCH in MAINTAINERS.
+EOM
+	}
+
+	return $clean;
+}
diff --git a/scripts/clang-gcc-wrapper b/scripts/clang-gcc-wrapper
new file mode 100755
index 0000000..9e66841
--- /dev/null
+++ b/scripts/clang-gcc-wrapper
@@ -0,0 +1,12 @@
+#!/bin/sh
+_cc="${HOSTCC_REAL:-gcc}"
+case "$1" in
+	-print-file-name=*)
+		dirs="$($_cc -print-search-dirs | grep -m1 libraries | sed -e 's,:, ,' -e 's,.* =,,')"
+		dirs="$dirs /usr/lib /usr/local/lib"
+		find $dirs -name "${1#*=}" | head -n1
+	;;
+	*)
+		exec $_cc "$@"
+	;;
+esac
diff --git a/scripts/clean-package.sh b/scripts/clean-package.sh
new file mode 100755
index 0000000..d1a2578
--- /dev/null
+++ b/scripts/clean-package.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+[ -n "$1" -a -n "$2" ] || {
+	echo "Usage: $0 <file> <directory>"
+	exit 1
+}
+[ -f "$1" -a -d "$2" ] || {
+	echo "File/directory not found"
+	exit 1
+}
+cat "$1" | (
+	cd "$2"
+	while read entry; do
+		[ -n "$entry" ] || break
+		[ -f "$entry" ] && rm -f $entry
+	done
+)
+cat "$1" | (
+	cd "$2"
+	while read entry; do
+		[ -n "$entry" ] || break
+		[ -d "$entry" ] && rmdir "$entry" > /dev/null 2>&1
+	done
+)
+true
diff --git a/scripts/cleanfile b/scripts/cleanfile
new file mode 100755
index 0000000..cefd29e
--- /dev/null
+++ b/scripts/cleanfile
@@ -0,0 +1,176 @@
+#!/usr/bin/perl -w
+#
+# Clean a text file -- or directory of text files -- of stealth whitespace.
+# WARNING: this can be a highly destructive operation.  Use with caution.
+#
+
+use bytes;
+use File::Basename;
+
+# Default options
+$max_width = 79;
+
+# Clean up space-tab sequences, either by removing spaces or
+# replacing them with tabs.
+sub clean_space_tabs($)
+{
+    no bytes;			# Tab alignment depends on characters
+
+    my($li) = @_;
+    my($lo) = '';
+    my $pos = 0;
+    my $nsp = 0;
+    my($i, $c);
+
+    for ($i = 0; $i < length($li); $i++) {
+	$c = substr($li, $i, 1);
+	if ($c eq "\t") {
+	    my $npos = ($pos+$nsp+8) & ~7;
+	    my $ntab = ($npos >> 3) - ($pos >> 3);
+	    $lo .= "\t" x $ntab;
+	    $pos = $npos;
+	    $nsp = 0;
+	} elsif ($c eq "\n" || $c eq "\r") {
+	    $lo .= " " x $nsp;
+	    $pos += $nsp;
+	    $nsp = 0;
+	    $lo .= $c;
+	    $pos = 0;
+	} elsif ($c eq " ") {
+	    $nsp++;
+	} else {
+	    $lo .= " " x $nsp;
+	    $pos += $nsp;
+	    $nsp = 0;
+	    $lo .= $c;
+	    $pos++;
+	}
+    }
+    $lo .= " " x $nsp;
+    return $lo;
+}
+
+# Compute the visual width of a string
+sub strwidth($) {
+    no bytes;			# Tab alignment depends on characters
+
+    my($li) = @_;
+    my($c, $i);
+    my $pos = 0;
+    my $mlen = 0;
+
+    for ($i = 0; $i < length($li); $i++) {
+	$c = substr($li,$i,1);
+	if ($c eq "\t") {
+	    $pos = ($pos+8) & ~7;
+	} elsif ($c eq "\n") {
+	    $mlen = $pos if ($pos > $mlen);
+	    $pos = 0;
+	} else {
+	    $pos++;
+	}
+    }
+
+    $mlen = $pos if ($pos > $mlen);
+    return $mlen;
+}
+
+$name = basename($0);
+
+@files = ();
+
+while (defined($a = shift(@ARGV))) {
+    if ($a =~ /^-/) {
+	if ($a eq '-width' || $a eq '-w') {
+	    $max_width = shift(@ARGV)+0;
+	} else {
+	    print STDERR "Usage: $name [-width #] files...\n";
+	    exit 1;
+	}
+    } else {
+	push(@files, $a);
+    }
+}
+
+foreach $f ( @files ) {
+    print STDERR "$name: $f\n";
+
+    if (! -f $f) {
+	print STDERR "$f: not a file\n";
+	next;
+    }
+
+    if (!open(FILE, '+<', $f)) {
+	print STDERR "$name: Cannot open file: $f: $!\n";
+	next;
+    }
+
+    binmode FILE;
+
+    # First, verify that it is not a binary file; consider any file
+    # with a zero byte to be a binary file.  Is there any better, or
+    # additional, heuristic that should be applied?
+    $is_binary = 0;
+
+    while (read(FILE, $data, 65536) > 0) {
+	if ($data =~ /\0/) {
+	    $is_binary = 1;
+	    last;
+	}
+    }
+
+    if ($is_binary) {
+	print STDERR "$name: $f: binary file\n";
+	next;
+    }
+
+    seek(FILE, 0, 0);
+
+    $in_bytes = 0;
+    $out_bytes = 0;
+    $blank_bytes = 0;
+
+    @blanks = ();
+    @lines  = ();
+    $lineno = 0;
+
+    while ( defined($line = <FILE>) ) {
+	$lineno++;
+	$in_bytes += length($line);
+	$line =~ s/[ \t\r]*$//;		# Remove trailing spaces
+	$line = clean_space_tabs($line);
+
+	if ( $line eq "\n" ) {
+	    push(@blanks, $line);
+	    $blank_bytes += length($line);
+	} else {
+	    push(@lines, @blanks);
+	    $out_bytes += $blank_bytes;
+	    push(@lines, $line);
+	    $out_bytes += length($line);
+	    @blanks = ();
+	    $blank_bytes = 0;
+	}
+
+	$l_width = strwidth($line);
+	if ($max_width && $l_width > $max_width) {
+	    print STDERR
+		"$f:$lineno: line exceeds $max_width characters ($l_width)\n";
+	}
+    }
+
+    # Any blanks at the end of the file are discarded
+
+    if ($in_bytes != $out_bytes) {
+	# Only write to the file if changed
+	seek(FILE, 0, 0);
+	print FILE @lines;
+
+	if ( !defined($where = tell(FILE)) ||
+	     !truncate(FILE, $where) ) {
+	    die "$name: Failed to truncate modified file: $f: $!\n";
+	}
+    }
+
+    close(FILE);
+}
diff --git a/scripts/cleanpatch b/scripts/cleanpatch
new file mode 100755
index 0000000..9680d03
--- /dev/null
+++ b/scripts/cleanpatch
@@ -0,0 +1,258 @@
+#!/usr/bin/perl -w
+#
+# Clean a patch file -- or directory of patch files -- of stealth whitespace.
+# WARNING: this can be a highly destructive operation.  Use with caution.
+#
+
+use bytes;
+use File::Basename;
+
+# Default options
+$max_width = 79;
+
+# Clean up space-tab sequences, either by removing spaces or
+# replacing them with tabs.
+sub clean_space_tabs($)
+{
+    no bytes;			# Tab alignment depends on characters
+
+    my($li) = @_;
+    my($lo) = '';
+    my $pos = 0;
+    my $nsp = 0;
+    my($i, $c);
+
+    for ($i = 0; $i < length($li); $i++) {
+	$c = substr($li, $i, 1);
+	if ($c eq "\t") {
+	    my $npos = ($pos+$nsp+8) & ~7;
+	    my $ntab = ($npos >> 3) - ($pos >> 3);
+	    $lo .= "\t" x $ntab;
+	    $pos = $npos;
+	    $nsp = 0;
+	} elsif ($c eq "\n" || $c eq "\r") {
+	    $lo .= " " x $nsp;
+	    $pos += $nsp;
+	    $nsp = 0;
+	    $lo .= $c;
+	    $pos = 0;
+	} elsif ($c eq " ") {
+	    $nsp++;
+	} else {
+	    $lo .= " " x $nsp;
+	    $pos += $nsp;
+	    $nsp = 0;
+	    $lo .= $c;
+	    $pos++;
+	}
+    }
+    $lo .= " " x $nsp;
+    return $lo;
+}
+
+# Compute the visual width of a string
+sub strwidth($) {
+    no bytes;			# Tab alignment depends on characters
+
+    my($li) = @_;
+    my($c, $i);
+    my $pos = 0;
+    my $mlen = 0;
+
+    for ($i = 0; $i < length($li); $i++) {
+	$c = substr($li,$i,1);
+	if ($c eq "\t") {
+	    $pos = ($pos+8) & ~7;
+	} elsif ($c eq "\n") {
+	    $mlen = $pos if ($pos > $mlen);
+	    $pos = 0;
+	} else {
+	    $pos++;
+	}
+    }
+
+    $mlen = $pos if ($pos > $mlen);
+    return $mlen;
+}
+
+$name = basename($0);
+
+@files = ();
+
+while (defined($a = shift(@ARGV))) {
+    if ($a =~ /^-/) {
+	if ($a eq '-width' || $a eq '-w') {
+	    $max_width = shift(@ARGV)+0;
+	} else {
+	    print STDERR "Usage: $name [-width #] files...\n";
+	    exit 1;
+	}
+    } else {
+	push(@files, $a);
+    }
+}
+
+foreach $f ( @files ) {
+    print STDERR "$name: $f\n";
+
+    if (! -f $f) {
+	print STDERR "$f: not a file\n";
+	next;
+    }
+
+    if (!open(FILE, '+<', $f)) {
+	print STDERR "$name: Cannot open file: $f: $!\n";
+	next;
+    }
+
+    binmode FILE;
+
+    # First, verify that it is not a binary file; consider any file
+    # with a zero byte to be a binary file.  Is there any better, or
+    # additional, heuristic that should be applied?
+    $is_binary = 0;
+
+    while (read(FILE, $data, 65536) > 0) {
+	if ($data =~ /\0/) {
+	    $is_binary = 1;
+	    last;
+	}
+    }
+
+    if ($is_binary) {
+	print STDERR "$name: $f: binary file\n";
+	next;
+    }
+
+    seek(FILE, 0, 0);
+
+    $in_bytes = 0;
+    $out_bytes = 0;
+    $lineno = 0;
+
+    @lines  = ();
+
+    $in_hunk = 0;
+    $err = 0;
+
+    while ( defined($line = <FILE>) ) {
+	$lineno++;
+	$in_bytes += length($line);
+
+	if (!$in_hunk) {
+	    if ($line =~
+		/^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@/) {
+		$minus_lines = $2;
+		$plus_lines = $4;
+		if ($minus_lines || $plus_lines) {
+		    $in_hunk = 1;
+		    @hunk_lines = ($line);
+		}
+	    } else {
+		push(@lines, $line);
+		$out_bytes += length($line);
+	    }
+	} else {
+	    # We're in a hunk
+
+	    if ($line =~ /^\+/) {
+		$plus_lines--;
+
+		$text = substr($line, 1);
+		$text =~ s/[ \t\r]*$//;		# Remove trailing spaces
+		$text = clean_space_tabs($text);
+
+		$l_width = strwidth($text);
+		if ($max_width && $l_width > $max_width) {
+		    print STDERR
+			"$f:$lineno: adds line exceeds $max_width ",
+			"characters ($l_width)\n";
+		}
+
+		push(@hunk_lines, '+'.$text);
+	    } elsif ($line =~ /^\-/) {
+		$minus_lines--;
+		push(@hunk_lines, $line);
+	    } elsif ($line =~ /^ /) {
+		$plus_lines--;
+		$minus_lines--;
+		push(@hunk_lines, $line);
+	    } else {
+		print STDERR "$name: $f: malformed patch\n";
+		$err = 1;
+		last;
+	    }
+
+	    if ($plus_lines < 0 || $minus_lines < 0) {
+		print STDERR "$name: $f: malformed patch\n";
+		$err = 1;
+		last;
+	    } elsif ($plus_lines == 0 && $minus_lines == 0) {
+		# End of a hunk.  Process this hunk.
+		my $i;
+		my $l;
+		my @h = ();
+		my $adj = 0;
+		my $done = 0;
+
+		for ($i = scalar(@hunk_lines)-1; $i > 0; $i--) {
+		    $l = $hunk_lines[$i];
+		    if (!$done && $l eq "+\n") {
+			$adj++; # Skip this line
+		    } elsif ($l =~ /^[ +]/) {
+			$done = 1;
+			unshift(@h, $l);
+		    } else {
+			unshift(@h, $l);
+		    }
+		}
+
+		$l = $hunk_lines[0];  # Hunk header
+		undef @hunk_lines;    # Free memory
+
+		if ($adj) {
+		    die unless
+			($l =~ /^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@(.*)$/);
+		    my $mstart = $1;
+		    my $mlin = $2;
+		    my $pstart = $3;
+		    my $plin = $4;
+		    my $tail = $5; # doesn't include the final newline
+
+		    $l = sprintf("@@ -%d,%d +%d,%d @@%s\n",
+				 $mstart, $mlin, $pstart, $plin-$adj,
+				 $tail);
+		}
+		unshift(@h, $l);
+
+		# Transfer to the output array
+		foreach $l (@h) {
+		    $out_bytes += length($l);
+		    push(@lines, $l);
+		}
+
+		$in_hunk = 0;
+	    }
+	}
+    }
+
+    if ($in_hunk) {
+	print STDERR "$name: $f: malformed patch\n";
+	$err = 1;
+    }
+
+    if (!$err) {
+	if ($in_bytes != $out_bytes) {
+	    # Only write to the file if changed
+	    seek(FILE, 0, 0);
+	    print FILE @lines;
+
+	    if ( !defined($where = tell(FILE)) ||
+		 !truncate(FILE, $where) ) {
+		die "$name: Failed to truncate modified file: $f: $!\n";
+	    }
+	}
+    }
+
+    close(FILE);
+}
diff --git a/scripts/combined-ext-image.sh b/scripts/combined-ext-image.sh
new file mode 100755
index 0000000..374fe6e
--- /dev/null
+++ b/scripts/combined-ext-image.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+#
+# Copyright (C) 2011 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+# Write image header followed by all specified files
+# The header is padded to 64k, format is:
+#  CE               magic word ("Combined Extended Image") (2 bytes)
+#  <CE_VERSION>     file format version field (2 bytes) 
+#  <TYPE>           short description of the target device (32 bytes)
+#  <NUM FILES>      number of files following the header (2 byte)
+#  <file1_name>     name of the first file (32 bytes)
+#  <file1_length>   length of the first file encoded as zero padded 8 digit hex (8 bytes)
+#  <file1_md5>      md5 checksum of the first file (32 bytes)
+#  <fileN_name>     name of the Nth file (32 bytes)
+#  <fileN_length>   length of the Nth file encoded as zero padded 8 digit hex (8 bytes)
+#  <fileN_md5>      md5 checksum of the Nth file (32 bytes)
+
+## version history
+# * version 1: initial file format with num files / name / length / md5 checksum 
+
+ME="${0##*/}"
+
+usage() {
+	echo "Usage: $ME <type> <ext filename> <file1> <filename1> [<file2> <filename2> <fileN> <filenameN>]"
+	[ "$IMG_OUT" ] && rm -f "$IMG_OUT"
+	exit 1
+}
+
+[ "$#" -lt 4 ] && usage
+
+CE_VERSION=1
+IMG_TYPE=$1; shift
+IMG_OUT=$1; shift
+FILE_NUM=$(($# / 2))
+FILES=""
+
+printf "CE%02x%-32s%02x" $CE_VERSION "$IMG_TYPE" $FILE_NUM > $IMG_OUT
+
+while [ "$#" -gt 1 ]
+   do
+      file=$1
+      filename=$2
+
+      [ ! -f "$file" ] && echo "$ME: Not a valid file: $file" && usage
+      FILES="$FILES $file"
+      md5=$(cat "$file" | md5sum -)
+      printf "%-32s%08x%32s" "$filename" $(stat -c "%s" "$file") "${md5%% *}" >> $IMG_OUT
+      shift 2
+   done
+
+[ "$#" -eq 1 ] && echo "$ME: Filename not specified: $1" && usage
+
+mv $IMG_OUT $IMG_OUT.tmp
+dd if="$IMG_OUT.tmp" of="$IMG_OUT" bs=65536 conv=sync 2>/dev/null
+rm $IMG_OUT.tmp
+
+cat $FILES >> $IMG_OUT
diff --git a/scripts/combined-image.sh b/scripts/combined-image.sh
new file mode 100644
index 0000000..5472b2c
--- /dev/null
+++ b/scripts/combined-image.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+BLKSZ=65536
+
+[ -f "$1" -a -f "$2" ] || {
+	echo "Usage: $0 <kernel image> <rootfs image> [output file]"
+	exit 1
+}
+
+IMAGE=${3:-openwrt-combined.img}
+
+# Make sure provided images are 64k aligned.
+kern="${IMAGE}.kernel"
+root="${IMAGE}.rootfs"
+dd if="$1" of="$kern" bs=$BLKSZ conv=sync 2>/dev/null
+dd if="$2" of="$root" bs=$BLKSZ conv=sync 2>/dev/null
+
+# Calculate md5sum over combined kernel and rootfs image.
+md5=$(cat "$kern" "$root" | md5sum -)
+
+# Write image header followed by kernel and rootfs image.
+# The header is padded to 64k, format is:
+#  CI               magic word ("Combined Image")
+#  <kernel length>  length of kernel encoded as zero padded 8 digit hex
+#  <rootfs length>  length of rootfs encoded as zero padded 8 digit hex
+#  <md5sum>         checksum of the combined kernel and rootfs image
+( printf "CI%08x%08x%32s" \
+	$(stat -c "%s" "$kern") $(stat -c "%s" "$root") "${md5%% *}" | \
+	dd bs=$BLKSZ conv=sync;
+  cat "$kern" "$root"
+) > ${IMAGE} 2>/dev/null
+
+# Clean up.
+rm -f "$kern" "$root"
diff --git a/scripts/config.guess b/scripts/config.guess
new file mode 100755
index 0000000..fddac42
--- /dev/null
+++ b/scripts/config.guess
@@ -0,0 +1,1438 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright 1992-2015 Free Software Foundation, Inc.
+
+timestamp='2015-07-03'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
+#
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+#
+# Please send patches to <config-patches@gnu.org>.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2015 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval $set_cc_for_build
+	cat <<-EOF > $dummy.c
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    /sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || \
+	    echo unknown)`
+	case "${UNAME_MACHINE_ARCH}" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo ${UNAME_MACHINE_ARCH} | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo ${UNAME_MACHINE_ARCH} | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine=${arch}${endian}-unknown
+		;;
+	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently, or will in the future.
+	case "${UNAME_MACHINE_ARCH}" in
+	    arm*|earm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval $set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# Determine ABI tags.
+	case "${UNAME_MACHINE_ARCH}" in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo ${UNAME_MACHINE_ARCH} | sed -e "$expr"`
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "${UNAME_VERSION}" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo ${UNAME_RELEASE} | sed -e 's/[-_].*//' | cut -d. -f1,2`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "${machine}-${os}${release}${abi}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+	exit ;;
+    *:SolidBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    *:MirBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE="alphaev5" ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE="alphaev56" ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE="alphapca56" ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE="alphapca57" ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE="alphaev6" ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE="alphaev67" ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE="alphaev69" ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE="alphaev7" ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE="alphaev79" ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Alpha\ *:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# Should we change UNAME_MACHINE based on the output of uname instead
+	# of the specific Alpha model?
+	echo alpha-pc-interix
+	exit ;;
+    21064:Windows_NT:50:3)
+	echo alpha-dec-winnt3.5
+	exit ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix${UNAME_RELEASE}
+	exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux${UNAME_RELEASE}
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	eval $set_cc_for_build
+	SUN_ARCH="i386"
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH="x86_64"
+	    fi
+	fi
+	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos${UNAME_RELEASE}
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint${UNAME_RELEASE}
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint${UNAME_RELEASE}
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint${UNAME_RELEASE}
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten${UNAME_RELEASE}
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten${UNAME_RELEASE}
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c &&
+	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`$dummy $dummyarg` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos${UNAME_RELEASE}
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+	then
+	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+	       [ ${TARGET_BINARY_INTERFACE}x = x ]
+	    then
+		echo m88k-dg-dgux${UNAME_RELEASE}
+	    else
+		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	    fi
+	else
+	    echo i586-dg-dgux${UNAME_RELEASE}
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval $set_cc_for_build
+		sed 's/^		//' << EOF >$dummy.c
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	case "${UNAME_MACHINE}" in
+	    9000/31? )            HP_ARCH=m68000 ;;
+	    9000/[34]?? )         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "${sc_cpu_version}" in
+		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "${sc_kernel_bits}" in
+			  32) HP_ARCH="hppa2.0n" ;;
+			  64) HP_ARCH="hppa2.0w" ;;
+			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "${HP_ARCH}" = "" ]; then
+		    eval $set_cc_for_build
+		    sed 's/^		//' << EOF >$dummy.c
+
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ ${HP_ARCH} = "hppa2.0w" ]
+	then
+	    eval $set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH="hppa2.0w"
+	    else
+		HP_ARCH="hppa64"
+	    fi
+	fi
+	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux${HPUX_REV}
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo ${UNAME_MACHINE}-unknown-osf1mk
+	else
+	    echo ${UNAME_MACHINE}-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_PROCESSOR} in
+	    amd64)
+		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	    *)
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	esac
+	exit ;;
+    i*:CYGWIN*:*)
+	echo ${UNAME_MACHINE}-pc-cygwin
+	exit ;;
+    *:MINGW64*:*)
+	echo ${UNAME_MACHINE}-pc-mingw64
+	exit ;;
+    *:MINGW*:*)
+	echo ${UNAME_MACHINE}-pc-mingw32
+	exit ;;
+    *:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
+    i*:windows32*:*)
+	# uname -m includes "-pc" on this system.
+	echo ${UNAME_MACHINE}-mingw32
+	exit ;;
+    i*:PW*:*)
+	echo ${UNAME_MACHINE}-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case ${UNAME_MACHINE} in
+	    x86)
+		echo i586-pc-interix${UNAME_RELEASE}
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	esac ;;
+    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
+	echo i${UNAME_MACHINE}-pc-mks
+	exit ;;
+    8664:Windows_NT:*)
+	echo x86_64-pc-mks
+	exit ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+	# UNAME_MACHINE based on the output of uname instead of i386?
+	echo i586-pc-interix
+	exit ;;
+    i*:UWIN*:*)
+	echo ${UNAME_MACHINE}-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    p*:CYGWIN*:*)
+	echo powerpcle-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+	exit ;;
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arm*:Linux:*:*)
+	eval $set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    cris:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    crisv32:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    e2k:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    frv:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    hexagon:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:Linux:*:*)
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
+	;;
+    openrisc*:Linux:*:*)
+	echo or1k-unknown-linux-${LIBC}
+	exit ;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-${LIBC}
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-${LIBC}
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+	  *)    echo hppa-unknown-linux-${LIBC} ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-${LIBC}
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-${LIBC}
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-${LIBC}
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-${LIBC}
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
+	exit ;;
+    sh64*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    sh*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    vax:Linux:*:*)
+	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+	exit ;;
+    x86_64:Linux:*:*)
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo ${UNAME_MACHINE}-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo ${UNAME_MACHINE}-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo ${UNAME_MACHINE}-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+	else
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configury will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv${UNAME_RELEASE}
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo ${UNAME_MACHINE}-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo ${UNAME_MACHINE}-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux${UNAME_RELEASE}
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv${UNAME_RELEASE}
+	else
+		echo mips-unknown-sysv${UNAME_RELEASE}
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux${UNAME_RELEASE}
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Rhapsody:*:*)
+	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	eval $set_cc_for_build
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		    (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		    grep IS_64BIT_ARCH >/dev/null
+		then
+		    case $UNAME_PROCESSOR in
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		    esac
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
+	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = "x86"; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSR-?:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = "386"; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo ${UNAME_MACHINE}-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux${UNAME_RELEASE}
+	exit ;;
+    *:DragonFly:*:*)
+	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "${UNAME_MACHINE}" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	exit ;;
+    i*86:rdos:*:*)
+	echo ${UNAME_MACHINE}-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo ${UNAME_MACHINE}-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
+	exit ;;
+esac
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+and
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/scripts/config.rpath b/scripts/config.rpath
new file mode 100755
index 0000000..c547c68
--- /dev/null
+++ b/scripts/config.rpath
@@ -0,0 +1,666 @@
+#! /bin/sh
+# Output a system dependent set of variables, describing how to set the
+# run time search path of shared libraries in an executable.
+#
+#   Copyright 1996-2007 Free Software Foundation, Inc.
+#   Taken from GNU libtool, 2001
+#   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+#   This file is free software; the Free Software Foundation gives
+#   unlimited permission to copy and/or distribute it, with or without
+#   modifications, as long as this notice is preserved.
+#
+# The first argument passed to this file is the canonical host specification,
+#    CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or
+#    CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# The environment variables CC, GCC, LDFLAGS, LD, with_gnu_ld
+# should be set by the caller.
+#
+# The set of defined variables is at the end of this script.
+
+# Known limitations:
+# - On IRIX 6.5 with CC="cc", the run time search patch must not be longer
+#   than 256 bytes, otherwise the compiler driver will dump core. The only
+#   known workaround is to choose shorter directory names for the build
+#   directory and/or the installation directory.
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+shrext=.so
+
+host="$1"
+host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+# Code taken from libtool.m4's _LT_CC_BASENAME.
+
+for cc_temp in $CC""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`echo "$cc_temp" | sed -e 's%^.*/%%'`
+
+# Code taken from libtool.m4's AC_LIBTOOL_PROG_COMPILER_PIC.
+
+wl=
+if test "$GCC" = yes; then
+  wl='-Wl,'
+else
+  case "$host_os" in
+    aix*)
+      wl='-Wl,'
+      ;;
+    darwin*)
+      case $cc_basename in
+        xlc*)
+          wl='-Wl,'
+          ;;
+      esac
+      ;;
+    mingw* | cygwin* | pw32* | os2*)
+      ;;
+    hpux9* | hpux10* | hpux11*)
+      wl='-Wl,'
+      ;;
+    irix5* | irix6* | nonstopux*)
+      wl='-Wl,'
+      ;;
+    newsos6)
+      ;;
+    linux* | k*bsd*-gnu)
+      case $cc_basename in
+        icc* | ecc*)
+          wl='-Wl,'
+          ;;
+        pgcc | pgf77 | pgf90)
+          wl='-Wl,'
+          ;;
+        ccc*)
+          wl='-Wl,'
+          ;;
+        como)
+          wl='-lopt='
+          ;;
+        *)
+          case `$CC -V 2>&1 | sed 5q` in
+            *Sun\ C*)
+              wl='-Wl,'
+              ;;
+          esac
+          ;;
+      esac
+      ;;
+    osf3* | osf4* | osf5*)
+      wl='-Wl,'
+      ;;
+    rdos*)
+      ;;
+    solaris*)
+      wl='-Wl,'
+      ;;
+    sunos4*)
+      wl='-Qoption ld '
+      ;;
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      wl='-Wl,'
+      ;;
+    sysv4*MP*)
+      ;;
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      wl='-Wl,'
+      ;;
+    unicos*)
+      wl='-Wl,'
+      ;;
+    uts4*)
+      ;;
+  esac
+fi
+
+# Code taken from libtool.m4's AC_LIBTOOL_PROG_LD_SHLIBS.
+
+hardcode_libdir_flag_spec=
+hardcode_libdir_separator=
+hardcode_direct=no
+hardcode_minus_L=no
+
+case "$host_os" in
+  cygwin* | mingw* | pw32*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+esac
+
+ld_shlibs=yes
+if test "$with_gnu_ld" = yes; then
+  # Set some defaults for GNU ld with shared library support. These
+  # are reset later if shared libraries are not supported. Putting them
+  # here allows them to be overridden if necessary.
+  # Unlike libtool, we use -rpath here, not --rpath, since the documented
+  # option of GNU ld is called -rpath, not --rpath.
+  hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+  case "$host_os" in
+    aix3* | aix4* | aix5*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+        ld_shlibs=no
+      fi
+      ;;
+    amigaos*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+      # that the semantics of dynamic libraries on AmigaOS, at least up
+      # to version 4, is to share data among multiple programs linked
+      # with the same dynamic library.  Since this doesn't match the
+      # behavior of shared libraries on other platforms, we cannot use
+      # them.
+      ld_shlibs=no
+      ;;
+    beos*)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+        :
+      else
+        ld_shlibs=no
+      fi
+      ;;
+    cygwin* | mingw* | pw32*)
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+        :
+      else
+        ld_shlibs=no
+      fi
+      ;;
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+      ;;
+    gnu* | linux* | k*bsd*-gnu)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+        :
+      else
+        ld_shlibs=no
+      fi
+      ;;
+    netbsd*)
+      ;;
+    solaris*)
+      if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
+        ld_shlibs=no
+      elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+        :
+      else
+        ld_shlibs=no
+      fi
+      ;;
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+          ld_shlibs=no
+          ;;
+        *)
+          if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+            hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-rpath,$libdir`'
+          else
+            ld_shlibs=no
+          fi
+          ;;
+      esac
+      ;;
+    sunos4*)
+      hardcode_direct=yes
+      ;;
+    *)
+      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+        :
+      else
+        ld_shlibs=no
+      fi
+      ;;
+  esac
+  if test "$ld_shlibs" = no; then
+    hardcode_libdir_flag_spec=
+  fi
+else
+  case "$host_os" in
+    aix3*)
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test "$GCC" = yes; then
+        # Neither direct hardcoding nor static linking is supported with a
+        # broken collect2.
+        hardcode_direct=unsupported
+      fi
+      ;;
+    aix4* | aix5*)
+      if test "$host_cpu" = ia64; then
+        # On IA64, the linker does run time linking by default, so we don't
+        # have to do anything special.
+        aix_use_runtimelinking=no
+      else
+        aix_use_runtimelinking=no
+        # Test if we are trying to use run time linking or normal
+        # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+        # need to do runtime linking.
+        case $host_os in aix4.[23]|aix4.[23].*|aix5*)
+          for ld_flag in $LDFLAGS; do
+            if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+              aix_use_runtimelinking=yes
+              break
+            fi
+          done
+          ;;
+        esac
+      fi
+      hardcode_direct=yes
+      hardcode_libdir_separator=':'
+      if test "$GCC" = yes; then
+        case $host_os in aix4.[012]|aix4.[012].*)
+          collect2name=`${CC} -print-prog-name=collect2`
+          if test -f "$collect2name" && \
+            strings "$collect2name" | grep resolve_lib_name >/dev/null
+          then
+            # We have reworked collect2
+            :
+          else
+            # We have old collect2
+            hardcode_direct=unsupported
+            hardcode_minus_L=yes
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_libdir_separator=
+          fi
+          ;;
+        esac
+      fi
+      # Begin _LT_AC_SYS_LIBPATH_AIX.
+      echo 'int main () { return 0; }' > conftest.c
+      ${CC} ${LDFLAGS} conftest.c -o conftest
+      aix_libpath=`dump -H conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+      if test -z "$aix_libpath"; then
+        aix_libpath=`dump -HX64 conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
+}'`
+      fi
+      if test -z "$aix_libpath"; then
+        aix_libpath="/usr/lib:/lib"
+      fi
+      rm -f conftest.c conftest
+      # End _LT_AC_SYS_LIBPATH_AIX.
+      if test "$aix_use_runtimelinking" = yes; then
+        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+      else
+        if test "$host_cpu" = ia64; then
+          hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+        else
+          hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+        fi
+      fi
+      ;;
+    amigaos*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      # see comment about different semantics on the GNU ld section
+      ld_shlibs=no
+      ;;
+    bsdi[45]*)
+      ;;
+    cygwin* | mingw* | pw32*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      hardcode_libdir_flag_spec=' '
+      libext=lib
+      ;;
+    darwin* | rhapsody*)
+      hardcode_direct=no
+      if test "$GCC" = yes ; then
+        :
+      else
+        case $cc_basename in
+          xlc*)
+            ;;
+          *)
+            ld_shlibs=no
+            ;;
+        esac
+      fi
+      ;;
+    dgux*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      ;;
+    freebsd1*)
+      ld_shlibs=no
+      ;;
+    freebsd2.2*)
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      ;;
+    freebsd2*)
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      ;;
+    freebsd* | dragonfly*)
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      ;;
+    hpux9*)
+      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      ;;
+    hpux10*)
+      if test "$with_gnu_ld" = no; then
+        hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+        hardcode_libdir_separator=:
+        hardcode_direct=yes
+        # hardcode_minus_L: Not really in the search PATH,
+        # but as the default location of the library.
+        hardcode_minus_L=yes
+      fi
+      ;;
+    hpux11*)
+      if test "$with_gnu_ld" = no; then
+        hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+        hardcode_libdir_separator=:
+        case $host_cpu in
+          hppa*64*|ia64*)
+            hardcode_direct=no
+            ;;
+          *)
+            hardcode_direct=yes
+            # hardcode_minus_L: Not really in the search PATH,
+            # but as the default location of the library.
+            hardcode_minus_L=yes
+            ;;
+        esac
+      fi
+      ;;
+    irix5* | irix6* | nonstopux*)
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+    netbsd*)
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      ;;
+    newsos6)
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+    openbsd*)
+      if test -f /usr/libexec/ld.so; then
+        hardcode_direct=yes
+        if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+          hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+        else
+          case "$host_os" in
+            openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+              hardcode_libdir_flag_spec='-R$libdir'
+              ;;
+            *)
+              hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+              ;;
+          esac
+        fi
+      else
+        ld_shlibs=no
+      fi
+      ;;
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      ;;
+    osf3*)
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+    osf4* | osf5*)
+      if test "$GCC" = yes; then
+        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      else
+        # Both cc and cxx compiler support -rpath directly
+        hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      hardcode_libdir_separator=:
+      ;;
+    solaris*)
+      hardcode_libdir_flag_spec='-R$libdir'
+      ;;
+    sunos4*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      ;;
+    sysv4)
+      case $host_vendor in
+        sni)
+          hardcode_direct=yes # is this really true???
+          ;;
+        siemens)
+          hardcode_direct=no
+          ;;
+        motorola)
+          hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+          ;;
+      esac
+      ;;
+    sysv4.3*)
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+        ld_shlibs=yes
+      fi
+      ;;
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      ;;
+    sysv5* | sco3.2v5* | sco5v6*)
+      hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-R,$libdir`'
+      hardcode_libdir_separator=':'
+      ;;
+    uts4*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      ;;
+    *)
+      ld_shlibs=no
+      ;;
+  esac
+fi
+
+# Check dynamic linker characteristics
+# Code taken from libtool.m4's AC_LIBTOOL_SYS_DYNAMIC_LINKER.
+# Unlike libtool.m4, here we don't care about _all_ names of the library, but
+# only about the one the linker finds when passed -lNAME. This is the last
+# element of library_names_spec in libtool.m4, or possibly two of them if the
+# linker has special search rules.
+library_names_spec=      # the last element of library_names_spec in libtool.m4
+libname_spec='lib$name'
+case "$host_os" in
+  aix3*)
+    library_names_spec='$libname.a'
+    ;;
+  aix4* | aix5*)
+    library_names_spec='$libname$shrext'
+    ;;
+  amigaos*)
+    library_names_spec='$libname.a'
+    ;;
+  beos*)
+    library_names_spec='$libname$shrext'
+    ;;
+  bsdi[45]*)
+    library_names_spec='$libname$shrext'
+    ;;
+  cygwin* | mingw* | pw32*)
+    shrext=.dll
+    library_names_spec='$libname.dll.a $libname.lib'
+    ;;
+  darwin* | rhapsody*)
+    shrext=.dylib
+    library_names_spec='$libname$shrext'
+    ;;
+  dgux*)
+    library_names_spec='$libname$shrext'
+    ;;
+  freebsd1*)
+    ;;
+  freebsd* | dragonfly*)
+    case "$host_os" in
+      freebsd[123]*)
+        library_names_spec='$libname$shrext$versuffix' ;;
+      *)
+        library_names_spec='$libname$shrext' ;;
+    esac
+    ;;
+  gnu*)
+    library_names_spec='$libname$shrext'
+    ;;
+  hpux9* | hpux10* | hpux11*)
+    case $host_cpu in
+      ia64*)
+        shrext=.so
+        ;;
+      hppa*64*)
+        shrext=.sl
+        ;;
+      *)
+        shrext=.sl
+        ;;
+    esac
+    library_names_spec='$libname$shrext'
+    ;;
+  interix[3-9]*)
+    library_names_spec='$libname$shrext'
+    ;;
+  irix5* | irix6* | nonstopux*)
+    library_names_spec='$libname$shrext'
+    case "$host_os" in
+      irix5* | nonstopux*)
+        libsuff= shlibsuff=
+        ;;
+      *)
+        case $LD in
+          *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= ;;
+          *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 ;;
+          *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 ;;
+          *) libsuff= shlibsuff= ;;
+        esac
+        ;;
+    esac
+    ;;
+  linux*oldld* | linux*aout* | linux*coff*)
+    ;;
+  linux* | k*bsd*-gnu)
+    library_names_spec='$libname$shrext'
+    ;;
+  knetbsd*-gnu)
+    library_names_spec='$libname$shrext'
+    ;;
+  netbsd*)
+    library_names_spec='$libname$shrext'
+    ;;
+  newsos6)
+    library_names_spec='$libname$shrext'
+    ;;
+  nto-qnx*)
+    library_names_spec='$libname$shrext'
+    ;;
+  openbsd*)
+    library_names_spec='$libname$shrext$versuffix'
+    ;;
+  os2*)
+    libname_spec='$name'
+    shrext=.dll
+    library_names_spec='$libname.a'
+    ;;
+  osf3* | osf4* | osf5*)
+    library_names_spec='$libname$shrext'
+    ;;
+  rdos*)
+    ;;
+  solaris*)
+    library_names_spec='$libname$shrext'
+    ;;
+  sunos4*)
+    library_names_spec='$libname$shrext$versuffix'
+    ;;
+  sysv4 | sysv4.3*)
+    library_names_spec='$libname$shrext'
+    ;;
+  sysv4*MP*)
+    library_names_spec='$libname$shrext'
+    ;;
+  sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+    library_names_spec='$libname$shrext'
+    ;;
+  uts4*)
+    library_names_spec='$libname$shrext'
+    ;;
+esac
+
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+escaped_wl=`echo "X$wl" | sed -e 's/^X//' -e "$sed_quote_subst"`
+shlibext=`echo "$shrext" | sed -e 's,^\.,,'`
+escaped_libname_spec=`echo "X$libname_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
+escaped_library_names_spec=`echo "X$library_names_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
+escaped_hardcode_libdir_flag_spec=`echo "X$hardcode_libdir_flag_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
+
+LC_ALL=C sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
+
+# How to pass a linker flag through the compiler.
+wl="$escaped_wl"
+
+# Static library suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally "so").
+shlibext="$shlibext"
+
+# Format of library name prefix.
+libname_spec="$escaped_libname_spec"
+
+# Library names that the linker finds when passed -lNAME.
+library_names_spec="$escaped_library_names_spec"
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec="$escaped_hardcode_libdir_flag_spec"
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator="$hardcode_libdir_separator"
+
+# Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct="$hardcode_direct"
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L="$hardcode_minus_L"
+
+EOF
diff --git a/scripts/config.sub b/scripts/config.sub
new file mode 100755
index 0000000..f018151
--- /dev/null
+++ b/scripts/config.sub
@@ -0,0 +1,1813 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright 1992-2015 Free Software Foundation, Inc.
+
+timestamp='2015-07-28'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches to <config-patches@gnu.org>.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2015 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
+  kopensolaris*-gnu* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray | -microblaze*)
+		os=
+		basic_machine=$1
+		;;
+	-bluegene*)
+		os=-cnk
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+	-chorusrdb)
+		os=-chorusrdb
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-windowsnt*)
+		os=`echo $os | sed -e 's/windowsnt/winnt/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| aarch64 | aarch64_be \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc | arceb \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| ba \
+	| be32 | be64 \
+	| bfin \
+	| c4x | c8051 | clipper \
+	| d10v | d30v | dlx | dsp16xx \
+	| e2k | epiphany \
+	| fido | fr30 | frv | ft32 \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
+	| i370 | i860 | i960 | ia64 \
+	| ip2k | iq2000 \
+	| k1om \
+	| le32 | le64 \
+	| lm32 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64octeon | mips64octeonel \
+	| mips64orion | mips64orionel \
+	| mips64r5900 | mips64r5900el \
+	| mips64vr | mips64vrel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa32r6 | mipsisa32r6el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64r6 | mipsisa64r6el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipsr5900 | mipsr5900el \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| moxie \
+	| mt \
+	| msp430 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 | nios2eb | nios2el \
+	| ns16k | ns32k \
+	| open8 | or1k | or1knd | or32 \
+	| pdp10 | pdp11 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pyramid \
+	| riscv32 | riscv64 \
+	| rl78 | rx \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| visium \
+	| we32k \
+	| x86 | xc16x | xstormy16 | xtensa \
+	| z8k | z80)
+		basic_machine=$basic_machine-unknown
+		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| aarch64-* | aarch64_be-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| ba-* \
+	| be32-* | be64-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| c8051-* | clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| e2k-* | elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
+	| i*86-* | i860-* | i960-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| k1om-* \
+	| le32-* | le64-* \
+	| lm32-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64octeon-* | mips64octeonel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64r5900-* | mips64r5900el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa32r6-* | mipsisa32r6el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64r6-* | mipsisa64r6el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipsr5900-* | mipsr5900el-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* | nios2eb-* | nios2el-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
+	| or1k*-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pyramid-* \
+	| riscv32-* | riscv64-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
+	| tron-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
+	| visium-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| xstormy16-* | xtensa*-* \
+	| ymp-* \
+	| z8k-* | z80-*)
+		;;
+	# Recognize the basic CPU types without company name, with glob match.
+	xtensa*)
+		basic_machine=$basic_machine-unknown
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aros)
+		basic_machine=i386-pc
+		os=-aros
+		;;
+        asmjs)
+		basic_machine=asmjs-unknown
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	blackfin)
+		basic_machine=bfin-unknown
+		os=-linux
+		;;
+	blackfin-*)
+		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	cegcc)
+		basic_machine=arm-unknown
+		os=-cegcc
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16 | cr16-*)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dicos)
+		basic_machine=i686-pc
+		os=-dicos
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2* | dpx2*-bull)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppa-next)
+		os=-nextstep3
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+	i*86v32)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
+		;;
+	m68knommu)
+		basic_machine=m68k-unknown
+		os=-linux
+		;;
+	m68knommu-*)
+		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	m88k-omron*)
+		basic_machine=m88k-omron
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	microblaze*)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
+	mingw32)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mips3*-*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+		;;
+	msys)
+		basic_machine=i686-pc
+		os=-msys
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next )
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	parisc)
+		basic_machine=hppa-unknown
+		os=-linux
+		;;
+	parisc-*)
+		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc | ppcbe)	basic_machine=powerpc-unknown
+		;;
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle | ppc-le | powerpc-little)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh)
+		basic_machine=sh-hitachi
+		os=-hms
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	sh64)
+		basic_machine=sh64-unknown
+		;;
+	sparclite-wrs | simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tile*)
+		basic_machine=$basic_machine-unknown
+		os=-linux-gnu
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
+	z80-*-coff)
+		basic_machine=z80-unknown
+		os=-sim
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
+		basic_machine=sparc-sun
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases
+	# that might get confused with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# First accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST END IN A *, to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -sym* | -kopensolaris* | -plan9* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* | -aros* | -cloudabi* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | -tirtos*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+	-os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-osfrose*)
+		os=-osfrose
+		;;
+	-osf*)
+		os=-osf
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2 )
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
+	-xenix)
+		os=-xenix
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-aros*)
+		os=-aros
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-dicos*)
+		os=-dicos
+		;;
+	-nacl*)
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	score-*)
+		os=-elf
+		;;
+	spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	c8051-*)
+		os=-elf
+		;;
+	hexagon-*)
+		os=-elf
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-haiku)
+		os=-haiku
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next )
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-next)
+		os=-nextstep3
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-cnk*|-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo $basic_machine$os
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/scripts/config/.gitignore b/scripts/config/.gitignore
new file mode 100644
index 0000000..0326e06
--- /dev/null
+++ b/scripts/config/.gitignore
@@ -0,0 +1,9 @@
+*.o
+conf*
+!conf*.c
+!conf*.h
+mconf*
+!mconf*.c
+!mconf*.h
+mconf_check
+*.*.c
diff --git a/scripts/config/Makefile b/scripts/config/Makefile
new file mode 100644
index 0000000..3de9808
--- /dev/null
+++ b/scripts/config/Makefile
@@ -0,0 +1,52 @@
+# ===========================================================================
+# OpenWrt configuration targets
+# These targets are used from top-level makefile
+
+# ===========================================================================
+# Shared Makefile for the various kconfig executables:
+# conf:	  Used for defconfig, oldconfig and related targets
+# mconf:  Used for the mconfig target.
+#         Utilizes the lxdialog package
+# object files used by all kconfig flavours
+
+
+# Platform specific fixes
+#
+# FreeBSD
+
+check_lxdialog = $(shell $(SHELL) $(CURDIR)/lxdialog/check-lxdialog.sh -$(1))
+export CFLAGS += -DKBUILD_NO_NLS -I. $(call check_lxdialog,ccflags)
+
+conf-objs	:= conf.o zconf.tab.o
+mconf-objs	:= mconf.o zconf.tab.o
+lxdialog-objs := \
+	lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o \
+	lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
+
+clean-files	:= zconf.tab.c lex.zconf.c zconf.hash.c
+
+all: conf mconf
+
+conf: $(conf-objs)
+mconf: $(mconf-objs) $(lxdialog-objs)
+	$(CC) -o $@ $^ $(call check_lxdialog,ldflags $(CC))
+
+clean:
+	rm -f *.o lxdialog/*.o $(clean-files) conf mconf
+
+zconf.tab.o: zconf.lex.c zconf.hash.c confdata.c
+
+kconfig_load.o: lkc_defs.h
+
+zconf.tab.c: zconf.y
+zconf.lex.c: zconf.l
+zconf.hash.c: zconf.gperf
+
+%.tab.c: %.y
+	cp $@_shipped $@ || bison -l -b $* -p $(notdir $*) $<
+
+%.lex.c: %.l
+	cp $@_shipped $@ || flex -L -P$(notdir $*) -o$@ $<
+
+%.hash.c: %.gperf
+	cp $@_shipped $@ || gperf < $< > $@
diff --git a/scripts/config/README b/scripts/config/README
new file mode 100644
index 0000000..ea911be
--- /dev/null
+++ b/scripts/config/README
@@ -0,0 +1,2 @@
+These files were taken from the Linux 3.9 Kernel
+Configuration System and modified for the OpenWrt Buildroot.
diff --git a/scripts/config/conf.c b/scripts/config/conf.c
new file mode 100644
index 0000000..16e5c43
--- /dev/null
+++ b/scripts/config/conf.c
@@ -0,0 +1,698 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <locale.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <errno.h>
+
+#include "lkc.h"
+
+static void conf(struct menu *menu);
+static void check_conf(struct menu *menu);
+static void xfgets(char *str, int size, FILE *in);
+
+enum input_mode {
+	oldaskconfig,
+	silentoldconfig,
+	oldconfig,
+	allnoconfig,
+	allyesconfig,
+	allmodconfig,
+	alldefconfig,
+	randconfig,
+	defconfig,
+	savedefconfig,
+	listnewconfig,
+	olddefconfig,
+} input_mode = oldaskconfig;
+
+static int indent = 1;
+static int tty_stdio;
+static int valid_stdin = 1;
+static int sync_kconfig;
+static int conf_cnt;
+static char line[128];
+static struct menu *rootEntry;
+
+static void print_help(struct menu *menu)
+{
+	struct gstr help = str_new();
+
+	menu_get_ext_help(menu, &help);
+
+	printf("\n%s\n", str_get(&help));
+	str_free(&help);
+}
+
+static void strip(char *str)
+{
+	char *p = str;
+	int l;
+
+	while ((isspace(*p)))
+		p++;
+	l = strlen(p);
+	if (p != str)
+		memmove(str, p, l + 1);
+	if (!l)
+		return;
+	p = str + l - 1;
+	while ((isspace(*p)))
+		*p-- = 0;
+}
+
+static void check_stdin(void)
+{
+	if (!valid_stdin) {
+		printf(_("aborted!\n\n"));
+		printf(_("Console input/output is redirected. "));
+		printf(_("Run 'make oldconfig' to update configuration.\n\n"));
+		exit(1);
+	}
+}
+
+static int conf_askvalue(struct symbol *sym, const char *def)
+{
+	enum symbol_type type = sym_get_type(sym);
+
+	if (!sym_has_value(sym))
+		printf(_("(NEW) "));
+
+	line[0] = '\n';
+	line[1] = 0;
+
+	if (!sym_is_changable(sym)) {
+		printf("%s\n", def);
+		line[0] = '\n';
+		line[1] = 0;
+		return 0;
+	}
+
+	switch (input_mode) {
+	case oldconfig:
+	case silentoldconfig:
+		if (sym_has_value(sym)) {
+			printf("%s\n", def);
+			return 0;
+		}
+		check_stdin();
+		/* fall through */
+	case oldaskconfig:
+		fflush(stdout);
+		xfgets(line, 128, stdin);
+		if (!tty_stdio)
+			printf("\n");
+		return 1;
+	default:
+		break;
+	}
+
+	switch (type) {
+	case S_INT:
+	case S_HEX:
+	case S_STRING:
+		printf("%s\n", def);
+		return 1;
+	default:
+		;
+	}
+	printf("%s", line);
+	return 1;
+}
+
+static int conf_string(struct menu *menu)
+{
+	struct symbol *sym = menu->sym;
+	const char *def;
+
+	while (1) {
+		printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
+		printf("(%s) ", sym->name);
+		def = sym_get_string_value(sym);
+		if (sym_get_string_value(sym))
+			printf("[%s] ", def);
+		if (!conf_askvalue(sym, def))
+			return 0;
+		switch (line[0]) {
+		case '\n':
+			break;
+		case '?':
+			/* print help */
+			if (line[1] == '\n') {
+				print_help(menu);
+				def = NULL;
+				break;
+			}
+			/* fall through */
+		default:
+			line[strlen(line)-1] = 0;
+			def = line;
+		}
+		if (def && sym_set_string_value(sym, def))
+			return 0;
+	}
+}
+
+static int conf_sym(struct menu *menu)
+{
+	struct symbol *sym = menu->sym;
+	tristate oldval, newval;
+
+	while (1) {
+		printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
+		if (sym->name)
+			printf("(%s) ", sym->name);
+		putchar('[');
+		oldval = sym_get_tristate_value(sym);
+		switch (oldval) {
+		case no:
+			putchar('N');
+			break;
+		case mod:
+			putchar('M');
+			break;
+		case yes:
+			putchar('Y');
+			break;
+		}
+		if (oldval != no && sym_tristate_within_range(sym, no))
+			printf("/n");
+		if (oldval != mod && sym_tristate_within_range(sym, mod))
+			printf("/m");
+		if (oldval != yes && sym_tristate_within_range(sym, yes))
+			printf("/y");
+		if (menu_has_help(menu))
+			printf("/?");
+		printf("] ");
+		if (!conf_askvalue(sym, sym_get_string_value(sym)))
+			return 0;
+		strip(line);
+
+		switch (line[0]) {
+		case 'n':
+		case 'N':
+			newval = no;
+			if (!line[1] || !strcmp(&line[1], "o"))
+				break;
+			continue;
+		case 'm':
+		case 'M':
+			newval = mod;
+			if (!line[1])
+				break;
+			continue;
+		case 'y':
+		case 'Y':
+			newval = yes;
+			if (!line[1] || !strcmp(&line[1], "es"))
+				break;
+			continue;
+		case 0:
+			newval = oldval;
+			break;
+		case '?':
+			goto help;
+		default:
+			continue;
+		}
+		if (sym_set_tristate_value(sym, newval))
+			return 0;
+help:
+		print_help(menu);
+	}
+}
+
+static int conf_choice(struct menu *menu)
+{
+	struct symbol *sym, *def_sym;
+	struct menu *child;
+	bool is_new;
+
+	sym = menu->sym;
+	is_new = !sym_has_value(sym);
+	if (sym_is_changable(sym)) {
+		conf_sym(menu);
+		sym_calc_value(sym);
+		switch (sym_get_tristate_value(sym)) {
+		case no:
+			return 1;
+		case mod:
+			return 0;
+		case yes:
+			break;
+		}
+	} else {
+		switch (sym_get_tristate_value(sym)) {
+		case no:
+			return 1;
+		case mod:
+			printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
+			return 0;
+		case yes:
+			break;
+		}
+	}
+
+	while (1) {
+		int cnt, def;
+
+		printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
+		def_sym = sym_get_choice_value(sym);
+		cnt = def = 0;
+		line[0] = 0;
+		for (child = menu->list; child; child = child->next) {
+			if (!menu_is_visible(child))
+				continue;
+			if (!child->sym) {
+				printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
+				continue;
+			}
+			cnt++;
+			if (child->sym == def_sym) {
+				def = cnt;
+				printf("%*c", indent, '>');
+			} else
+				printf("%*c", indent, ' ');
+			printf(" %d. %s", cnt, _(menu_get_prompt(child)));
+			if (child->sym->name)
+				printf(" (%s)", child->sym->name);
+			if (!sym_has_value(child->sym))
+				printf(_(" (NEW)"));
+			printf("\n");
+		}
+		printf(_("%*schoice"), indent - 1, "");
+		if (cnt == 1) {
+			printf("[1]: 1\n");
+			goto conf_childs;
+		}
+		printf("[1-%d", cnt);
+		if (menu_has_help(menu))
+			printf("?");
+		printf("]: ");
+		switch (input_mode) {
+		case oldconfig:
+		case silentoldconfig:
+			if (!is_new) {
+				cnt = def;
+				printf("%d\n", cnt);
+				break;
+			}
+			check_stdin();
+			/* fall through */
+		case oldaskconfig:
+			fflush(stdout);
+			xfgets(line, 128, stdin);
+			strip(line);
+			if (line[0] == '?') {
+				print_help(menu);
+				continue;
+			}
+			if (!line[0])
+				cnt = def;
+			else if (isdigit(line[0]))
+				cnt = atoi(line);
+			else
+				continue;
+			break;
+		default:
+			break;
+		}
+
+	conf_childs:
+		for (child = menu->list; child; child = child->next) {
+			if (!child->sym || !menu_is_visible(child))
+				continue;
+			if (!--cnt)
+				break;
+		}
+		if (!child)
+			continue;
+		if (line[0] && line[strlen(line) - 1] == '?') {
+			print_help(child);
+			continue;
+		}
+		sym_set_choice_value(sym, child->sym);
+		for (child = child->list; child; child = child->next) {
+			indent += 2;
+			conf(child);
+			indent -= 2;
+		}
+		return 1;
+	}
+}
+
+static void conf(struct menu *menu)
+{
+	struct symbol *sym;
+	struct property *prop;
+	struct menu *child;
+
+	if (!menu_is_visible(menu))
+		return;
+
+	sym = menu->sym;
+	prop = menu->prompt;
+	if (prop) {
+		const char *prompt;
+
+		switch (prop->type) {
+		case P_MENU:
+			if ((input_mode == silentoldconfig ||
+			     input_mode == listnewconfig ||
+			     input_mode == olddefconfig) &&
+			    rootEntry != menu) {
+				check_conf(menu);
+				return;
+			}
+			/* fall through */
+		case P_COMMENT:
+			prompt = menu_get_prompt(menu);
+			if (prompt)
+				printf("%*c\n%*c %s\n%*c\n",
+					indent, '*',
+					indent, '*', _(prompt),
+					indent, '*');
+		default:
+			;
+		}
+	}
+
+	if (!sym)
+		goto conf_childs;
+
+	if (sym_is_choice(sym)) {
+		conf_choice(menu);
+		if (sym->curr.tri != mod)
+			return;
+		goto conf_childs;
+	}
+
+	switch (sym->type) {
+	case S_INT:
+	case S_HEX:
+	case S_STRING:
+		conf_string(menu);
+		break;
+	default:
+		conf_sym(menu);
+		break;
+	}
+
+conf_childs:
+	if (sym)
+		indent += 2;
+	for (child = menu->list; child; child = child->next)
+		conf(child);
+	if (sym)
+		indent -= 2;
+}
+
+static void check_conf(struct menu *menu)
+{
+	struct symbol *sym;
+	struct menu *child;
+
+	if (!menu_is_visible(menu))
+		return;
+
+	sym = menu->sym;
+	if (sym && !sym_has_value(sym)) {
+		if (sym_is_changable(sym) ||
+		    (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
+			if (input_mode == listnewconfig) {
+				if (sym->name && !sym_is_choice_value(sym)) {
+					printf("%s%s\n", CONFIG_, sym->name);
+				}
+			} else if (input_mode != olddefconfig) {
+				if (!conf_cnt++)
+					printf(_("*\n* Restart config...\n*\n"));
+				rootEntry = menu_get_parent_menu(menu);
+				conf(rootEntry);
+			}
+		}
+	}
+
+	for (child = menu->list; child; child = child->next)
+		check_conf(child);
+}
+
+static struct option long_opts[] = {
+	{"oldaskconfig",    no_argument,       NULL, oldaskconfig},
+	{"oldconfig",       no_argument,       NULL, oldconfig},
+	{"silentoldconfig", no_argument,       NULL, silentoldconfig},
+	{"defconfig",       optional_argument, NULL, defconfig},
+	{"savedefconfig",   required_argument, NULL, savedefconfig},
+	{"allnoconfig",     no_argument,       NULL, allnoconfig},
+	{"allyesconfig",    no_argument,       NULL, allyesconfig},
+	{"allmodconfig",    no_argument,       NULL, allmodconfig},
+	{"alldefconfig",    no_argument,       NULL, alldefconfig},
+	{"randconfig",      no_argument,       NULL, randconfig},
+	{"listnewconfig",   no_argument,       NULL, listnewconfig},
+	{"olddefconfig",    no_argument,       NULL, olddefconfig},
+	/*
+	 * oldnoconfig is an alias of olddefconfig, because people already
+	 * are dependent on its behavior(sets new symbols to their default
+	 * value but not 'n') with the counter-intuitive name.
+	 */
+	{"oldnoconfig",     no_argument,       NULL, olddefconfig},
+	{NULL, 0, NULL, 0}
+};
+
+static void conf_usage(const char *progname)
+{
+
+	printf("Usage: %s [option] <kconfig-file>\n", progname);
+	printf("[option] is _one_ of the following:\n");
+	printf("  --listnewconfig         List new options\n");
+	printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
+	printf("  --oldconfig             Update a configuration using a provided .config as base\n");
+	printf("  --silentoldconfig       Same as oldconfig, but quietly, additionally update deps\n");
+	printf("  --olddefconfig          Same as silentoldconfig but sets new symbols to their default value\n");
+	printf("  --oldnoconfig           An alias of olddefconfig\n");
+	printf("  --defconfig <file>      New config with default defined in <file>\n");
+	printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
+	printf("  --allnoconfig           New config where all options are answered with no\n");
+	printf("  --allyesconfig          New config where all options are answered with yes\n");
+	printf("  --allmodconfig          New config where all options are answered with mod\n");
+	printf("  --alldefconfig          New config with all symbols set to default\n");
+	printf("  --randconfig            New config with random answer to all options\n");
+}
+
+int main(int ac, char **av)
+{
+	const char *progname = av[0];
+	int opt;
+	const char *name, *defconfig_file = NULL /* gcc uninit */;
+	struct stat tmpstat;
+	const char *input_file = NULL, *output_file = NULL;
+
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+
+	tty_stdio = isatty(0) && isatty(1) && isatty(2);
+
+	while ((opt = getopt_long(ac, av, "r:w:", long_opts, NULL)) != -1) {
+		switch (opt) {
+		case silentoldconfig:
+			sync_kconfig = 1;
+			break;
+		case defconfig:
+		case savedefconfig:
+			defconfig_file = optarg;
+			break;
+		case randconfig:
+		{
+			struct timeval now;
+			unsigned int seed;
+			char *seed_env;
+
+			/*
+			 * Use microseconds derived seed,
+			 * compensate for systems where it may be zero
+			 */
+			gettimeofday(&now, NULL);
+			seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
+
+			seed_env = getenv("KCONFIG_SEED");
+			if( seed_env && *seed_env ) {
+				char *endp;
+				int tmp = (int)strtol(seed_env, &endp, 0);
+				if (*endp == '\0') {
+					seed = tmp;
+				}
+			}
+			fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
+			srand(seed);
+			break;
+		}
+		case oldaskconfig:
+		case oldconfig:
+		case allnoconfig:
+		case allyesconfig:
+		case allmodconfig:
+		case alldefconfig:
+		case listnewconfig:
+		case olddefconfig:
+			break;
+		case 'r':
+			input_file = optarg;
+			continue;
+		case 'w':
+			output_file = optarg;
+			continue;
+		case '?':
+			conf_usage(progname);
+			exit(1);
+			break;
+		}
+		input_mode = (enum input_mode)opt;
+	}
+	if (ac == optind) {
+		printf(_("%s: Kconfig file missing\n"), av[0]);
+		conf_usage(progname);
+		exit(1);
+	}
+	name = av[optind];
+	conf_parse(name);
+	//zconfdump(stdout);
+	if (sync_kconfig) {
+		name = conf_get_configname();
+		if (stat(name, &tmpstat)) {
+			fprintf(stderr, _("***\n"
+				"*** Configuration file \"%s\" not found!\n"
+				"***\n"
+				"*** Please run some configurator (e.g. \"make oldconfig\" or\n"
+				"*** \"make menuconfig\" or \"make xconfig\").\n"
+				"***\n"), name);
+			exit(1);
+		}
+	}
+
+	switch (input_mode) {
+	case defconfig:
+		if (!defconfig_file)
+			defconfig_file = conf_get_default_confname();
+		if (conf_read(defconfig_file)) {
+			printf(_("***\n"
+				"*** Can't find default configuration \"%s\"!\n"
+				"***\n"), defconfig_file);
+			exit(1);
+		}
+		break;
+	case savedefconfig:
+	case silentoldconfig:
+	case oldaskconfig:
+	case oldconfig:
+	case listnewconfig:
+	case olddefconfig:
+	case allnoconfig:
+	case allyesconfig:
+	case allmodconfig:
+	case alldefconfig:
+	case randconfig:
+		conf_read(input_file);
+		break;
+	default:
+		break;
+	}
+
+	if (sync_kconfig) {
+		if (conf_get_changed()) {
+			name = getenv("KCONFIG_NOSILENTUPDATE");
+			if (name && *name) {
+				fprintf(stderr,
+					_("\n*** The configuration requires explicit update.\n\n"));
+				return 1;
+			}
+		}
+		valid_stdin = tty_stdio;
+	}
+
+	switch (input_mode) {
+	case allnoconfig:
+		conf_set_all_new_symbols(def_no);
+		break;
+	case allyesconfig:
+		conf_set_all_new_symbols(def_yes);
+		break;
+	case allmodconfig:
+		conf_set_all_new_symbols(def_mod);
+		break;
+	case alldefconfig:
+		conf_set_all_new_symbols(def_default);
+		break;
+	case randconfig:
+		/* Really nothing to do in this loop */
+		while (conf_set_all_new_symbols(def_random)) ;
+		break;
+	case defconfig:
+		conf_set_all_new_symbols(def_default);
+		break;
+	case savedefconfig:
+		break;
+	case oldaskconfig:
+		rootEntry = &rootmenu;
+		conf(&rootmenu);
+		input_mode = silentoldconfig;
+		/* fall through */
+	case oldconfig:
+	case listnewconfig:
+	case olddefconfig:
+	case silentoldconfig:
+		/* Update until a loop caused no more changes */
+		do {
+			conf_cnt = 0;
+			check_conf(&rootmenu);
+		} while (conf_cnt &&
+			 (input_mode != listnewconfig &&
+			  input_mode != olddefconfig));
+		break;
+	}
+
+	if (sync_kconfig) {
+		/* silentoldconfig is used during the build so we shall update autoconf.
+		 * All other commands are only used to generate a config.
+		 */
+		if ((output_file || conf_get_changed()) &&
+		    conf_write(output_file)) {
+			fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
+			exit(1);
+		}
+		if (conf_write_autoconf()) {
+			fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
+			return 1;
+		}
+	} else if (input_mode == savedefconfig) {
+		if (conf_write_defconfig(defconfig_file)) {
+			fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
+				defconfig_file);
+			return 1;
+		}
+	} else if (input_mode != listnewconfig) {
+		if (conf_write(output_file)) {
+			fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
+			exit(1);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Helper function to facilitate fgets() by Jean Sacren.
+ */
+void xfgets(char *str, int size, FILE *in)
+{
+	if (fgets(str, size, in) == NULL)
+		fprintf(stderr, "\nError in reading or end of file.\n");
+}
diff --git a/scripts/config/confdata.c b/scripts/config/confdata.c
new file mode 100644
index 0000000..052347c
--- /dev/null
+++ b/scripts/config/confdata.c
@@ -0,0 +1,1245 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <sys/stat.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "lkc.h"
+
+static void conf_warning(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
+
+static void conf_message(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
+
+static const char *conf_filename;
+static int conf_lineno, conf_warnings, conf_unsaved;
+
+const char conf_defname[] = "arch/$ARCH/defconfig";
+
+static void conf_warning(const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+	conf_warnings++;
+}
+
+static void conf_default_message_callback(const char *fmt, va_list ap)
+{
+	printf("#\n# ");
+	vprintf(fmt, ap);
+	printf("\n#\n");
+}
+
+static void (*conf_message_callback) (const char *fmt, va_list ap) =
+	conf_default_message_callback;
+void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
+{
+	conf_message_callback = fn;
+}
+
+static void conf_message(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	if (conf_message_callback)
+		conf_message_callback(fmt, ap);
+}
+
+const char *conf_get_configname(void)
+{
+	char *name = getenv("KCONFIG_CONFIG");
+
+	return name ? name : ".config";
+}
+
+const char *conf_get_autoconfig_name(void)
+{
+	char *name = getenv("KCONFIG_AUTOCONFIG");
+
+	return name ? name : "include/config/auto.conf";
+}
+
+static char *conf_expand_value(const char *in)
+{
+	struct symbol *sym;
+	const char *src;
+	static char res_value[SYMBOL_MAXLENGTH];
+	char *dst, name[SYMBOL_MAXLENGTH];
+
+	res_value[0] = 0;
+	dst = name;
+	while ((src = strchr(in, '$'))) {
+		strncat(res_value, in, src - in);
+		src++;
+		dst = name;
+		while (isalnum(*src) || *src == '_')
+			*dst++ = *src++;
+		*dst = 0;
+		sym = sym_lookup(name, 0);
+		sym_calc_value(sym);
+		strcat(res_value, sym_get_string_value(sym));
+		in = src;
+	}
+	strcat(res_value, in);
+
+	return res_value;
+}
+
+char *conf_get_default_confname(void)
+{
+	struct stat buf;
+	static char fullname[PATH_MAX+1];
+	char *env, *name;
+
+	name = conf_expand_value(conf_defname);
+	env = getenv(SRCTREE);
+	if (env) {
+		sprintf(fullname, "%s/%s", env, name);
+		if (!stat(fullname, &buf))
+			return fullname;
+	}
+	return name;
+}
+
+static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
+{
+	char *p2;
+
+	switch (sym->type) {
+	case S_TRISTATE:
+		if (p[0] == 'm') {
+			sym->def[def].tri = mod;
+			sym->flags |= def_flags;
+			break;
+		}
+		/* fall through */
+	case S_BOOLEAN:
+		if (p[0] == 'y') {
+			sym->def[def].tri = yes;
+			sym->flags |= def_flags;
+			break;
+		}
+		if (p[0] == 'n') {
+			sym->def[def].tri = no;
+			sym->flags |= def_flags;
+			break;
+		}
+		if (def != S_DEF_AUTO)
+			conf_warning("symbol value '%s' invalid for %s",
+				     p, sym->name);
+		return 1;
+	case S_OTHER:
+		if (*p != '"') {
+			for (p2 = p; *p2 && !isspace(*p2); p2++)
+				;
+			sym->type = S_STRING;
+			goto done;
+		}
+		/* fall through */
+	case S_STRING:
+		if (*p++ != '"')
+			break;
+		for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
+			if (*p2 == '"') {
+				*p2 = 0;
+				break;
+			}
+			memmove(p2, p2 + 1, strlen(p2));
+		}
+		if (!p2) {
+			if (def != S_DEF_AUTO)
+				conf_warning("invalid string found");
+			return 1;
+		}
+		/* fall through */
+	case S_INT:
+	case S_HEX:
+	done:
+		if (sym_string_valid(sym, p)) {
+			sym->def[def].val = strdup(p);
+			sym->flags |= def_flags;
+		} else {
+			if (def != S_DEF_AUTO)
+				conf_warning("symbol value '%s' invalid for %s",
+					     p, sym->name);
+			return 1;
+		}
+		break;
+	default:
+		;
+	}
+	return 0;
+}
+
+#define LINE_GROWTH 16
+static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
+{
+	char *nline;
+	size_t new_size = slen + 1;
+	if (new_size > *n) {
+		new_size += LINE_GROWTH - 1;
+		new_size *= 2;
+		nline = realloc(*lineptr, new_size);
+		if (!nline)
+			return -1;
+
+		*lineptr = nline;
+		*n = new_size;
+	}
+
+	(*lineptr)[slen] = c;
+
+	return 0;
+}
+
+static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
+{
+	char *line = *lineptr;
+	size_t slen = 0;
+
+	for (;;) {
+		int c = getc(stream);
+
+		switch (c) {
+		case '\n':
+			if (add_byte(c, &line, slen, n) < 0)
+				goto e_out;
+			slen++;
+			/* fall through */
+		case EOF:
+			if (add_byte('\0', &line, slen, n) < 0)
+				goto e_out;
+			*lineptr = line;
+			if (slen == 0)
+				return -1;
+			return slen;
+		default:
+			if (add_byte(c, &line, slen, n) < 0)
+				goto e_out;
+			slen++;
+		}
+	}
+
+e_out:
+	line[slen-1] = '\0';
+	*lineptr = line;
+	return -1;
+}
+
+void conf_reset(int def)
+{
+	struct symbol *sym;
+	int i, def_flags;
+
+	def_flags = SYMBOL_DEF << def;
+	for_all_symbols(i, sym) {
+		sym->flags |= SYMBOL_CHANGED;
+		sym->flags &= ~(def_flags|SYMBOL_VALID);
+		if (sym_is_choice(sym))
+			sym->flags |= def_flags;
+		switch (sym->type) {
+		case S_INT:
+		case S_HEX:
+		case S_STRING:
+			if (sym->def[def].val)
+				free(sym->def[def].val);
+			/* fall through */
+		default:
+			sym->def[def].val = NULL;
+			sym->def[def].tri = no;
+		}
+	}
+}
+
+int conf_read_simple(const char *name, int def)
+{
+	FILE *in = NULL;
+	char   *line = NULL;
+	size_t  line_asize = 0;
+	char *p, *p2;
+	struct symbol *sym;
+	int def_flags;
+
+	if (name) {
+		in = zconf_fopen(name);
+	} else {
+		struct property *prop;
+
+		name = conf_get_configname();
+		in = zconf_fopen(name);
+		if (in)
+			goto load;
+		sym_add_change_count(1);
+		if (!sym_defconfig_list) {
+			if (modules_sym)
+				sym_calc_value(modules_sym);
+			return 1;
+		}
+
+		for_all_defaults(sym_defconfig_list, prop) {
+			if (expr_calc_value(prop->visible.expr) == no ||
+			    prop->expr->type != E_SYMBOL)
+				continue;
+			name = conf_expand_value(prop->expr->left.sym->name);
+			in = zconf_fopen(name);
+			if (in) {
+				conf_message(_("using defaults found in %s"),
+					 name);
+				goto load;
+			}
+		}
+	}
+	if (!in)
+		return 1;
+
+load:
+	conf_filename = name;
+	conf_lineno = 0;
+	conf_warnings = 0;
+	conf_unsaved = 0;
+
+	def_flags = SYMBOL_DEF << def;
+	conf_reset(def);
+
+	while (compat_getline(&line, &line_asize, in) != -1) {
+		conf_lineno++;
+		sym = NULL;
+		if (line[0] == '#') {
+			if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
+				continue;
+			p = strchr(line + 2 + strlen(CONFIG_), ' ');
+			if (!p)
+				continue;
+			*p++ = 0;
+			if (strncmp(p, "is not set", 10))
+				continue;
+			if (def == S_DEF_USER) {
+				sym = sym_find(line + 2 + strlen(CONFIG_));
+				if (!sym) {
+					sym_add_change_count(1);
+					goto setsym;
+				}
+			} else {
+				sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
+				if (sym->type == S_UNKNOWN)
+					sym->type = S_BOOLEAN;
+			}
+			switch (sym->type) {
+			case S_BOOLEAN:
+			case S_TRISTATE:
+				sym->def[def].tri = no;
+				sym->flags |= def_flags;
+				break;
+			default:
+				;
+			}
+		} else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
+			p = strchr(line + strlen(CONFIG_), '=');
+			if (!p)
+				continue;
+			*p++ = 0;
+			p2 = strchr(p, '\n');
+			if (p2) {
+				*p2-- = 0;
+				if (*p2 == '\r')
+					*p2 = 0;
+			}
+			if (def == S_DEF_USER) {
+				sym = sym_find(line + strlen(CONFIG_));
+				if (!sym) {
+					sym_add_change_count(1);
+					goto setsym;
+				}
+			} else {
+				sym = sym_lookup(line + strlen(CONFIG_), 0);
+				if (sym->type == S_UNKNOWN)
+					sym->type = S_OTHER;
+			}
+			if (conf_set_sym_val(sym, def, def_flags, p))
+				continue;
+		} else {
+			if (line[0] != '\r' && line[0] != '\n')
+				conf_warning("unexpected data");
+			continue;
+		}
+setsym:
+		if (sym && sym_is_choice_value(sym)) {
+			struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
+			switch (sym->def[def].tri) {
+			case no:
+				break;
+			case mod:
+				if (cs->def[def].tri == yes) {
+					conf_warning("%s creates inconsistent choice state", sym->name);
+					cs->flags &= ~def_flags;
+				}
+				break;
+			case yes:
+				if (cs->def[def].tri != no)
+					conf_warning("override: %s changes choice state", sym->name);
+				cs->def[def].val = sym;
+				break;
+			}
+			cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
+		}
+	}
+	free(line);
+	fclose(in);
+
+	if (modules_sym)
+		sym_calc_value(modules_sym);
+	return 0;
+}
+
+int conf_read(const char *name)
+{
+	struct symbol *sym;
+	int i;
+
+	sym_set_change_count(0);
+
+	if (conf_read_simple(name, S_DEF_USER))
+		return 1;
+
+	for_all_symbols(i, sym) {
+		sym_calc_value(sym);
+		if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
+			continue;
+		if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
+			/* check that calculated value agrees with saved value */
+			switch (sym->type) {
+			case S_BOOLEAN:
+			case S_TRISTATE:
+				if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
+					break;
+				if (!sym_is_choice(sym))
+					continue;
+				/* fall through */
+			default:
+				if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
+					continue;
+				break;
+			}
+		} else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
+			/* no previous value and not saved */
+			continue;
+		conf_unsaved++;
+		/* maybe print value in verbose mode... */
+	}
+
+	for_all_symbols(i, sym) {
+		if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
+			/* Reset values of generates values, so they'll appear
+			 * as new, if they should become visible, but that
+			 * doesn't quite work if the Kconfig and the saved
+			 * configuration disagree.
+			 */
+			if (sym->visible == no && !conf_unsaved)
+				sym->flags &= ~SYMBOL_DEF_USER;
+			switch (sym->type) {
+			case S_STRING:
+			case S_INT:
+			case S_HEX:
+				/* Reset a string value if it's out of range */
+				if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
+					break;
+				sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
+				conf_unsaved++;
+				break;
+			default:
+				break;
+			}
+		}
+	}
+
+	sym_add_change_count(conf_warnings || conf_unsaved);
+
+	return 0;
+}
+
+/*
+ * Kconfig configuration printer
+ *
+ * This printer is used when generating the resulting configuration after
+ * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
+ * passing a non-NULL argument to the printer.
+ *
+ */
+static void
+kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+	switch (sym->type) {
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		if (*value == 'n') {
+			bool skip_unset = (arg != NULL);
+
+			if (!skip_unset)
+				fprintf(fp, "# %s%s is not set\n",
+				    CONFIG_, sym->name);
+			return;
+		}
+		break;
+	default:
+		break;
+	}
+
+	fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
+}
+
+static void
+kconfig_print_comment(FILE *fp, const char *value, void *arg)
+{
+	const char *p = value;
+	size_t l;
+
+	for (;;) {
+		l = strcspn(p, "\n");
+		fprintf(fp, "#");
+		if (l) {
+			fprintf(fp, " ");
+			xfwrite(p, l, 1, fp);
+			p += l;
+		}
+		fprintf(fp, "\n");
+		if (*p++ == '\0')
+			break;
+	}
+}
+
+static struct conf_printer kconfig_printer_cb =
+{
+	.print_symbol = kconfig_print_symbol,
+	.print_comment = kconfig_print_comment,
+};
+
+/*
+ * Header printer
+ *
+ * This printer is used when generating the `include/generated/autoconf.h' file.
+ */
+static void
+header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+	switch (sym->type) {
+	case S_BOOLEAN:
+	case S_TRISTATE: {
+		const char *suffix = "";
+
+		switch (*value) {
+		case 'n':
+			break;
+		case 'm':
+			suffix = "_MODULE";
+			/* fall through */
+		default:
+			fprintf(fp, "#define %s%s%s 1\n",
+			    CONFIG_, sym->name, suffix);
+		}
+		break;
+	}
+	case S_HEX: {
+		const char *prefix = "";
+
+		if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
+			prefix = "0x";
+		fprintf(fp, "#define %s%s %s%s\n",
+		    CONFIG_, sym->name, prefix, value);
+		break;
+	}
+	case S_STRING:
+	case S_INT:
+		fprintf(fp, "#define %s%s %s\n",
+		    CONFIG_, sym->name, value);
+		break;
+	default:
+		break;
+	}
+
+}
+
+static void
+header_print_comment(FILE *fp, const char *value, void *arg)
+{
+	const char *p = value;
+	size_t l;
+
+	fprintf(fp, "/*\n");
+	for (;;) {
+		l = strcspn(p, "\n");
+		fprintf(fp, " *");
+		if (l) {
+			fprintf(fp, " ");
+			xfwrite(p, l, 1, fp);
+			p += l;
+		}
+		fprintf(fp, "\n");
+		if (*p++ == '\0')
+			break;
+	}
+	fprintf(fp, " */\n");
+}
+
+static struct conf_printer header_printer_cb =
+{
+	.print_symbol = header_print_symbol,
+	.print_comment = header_print_comment,
+};
+
+/*
+ * Tristate printer
+ *
+ * This printer is used when generating the `include/config/tristate.conf' file.
+ */
+static void
+tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+	if (sym->type == S_TRISTATE && *value != 'n')
+		fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
+}
+
+static struct conf_printer tristate_printer_cb =
+{
+	.print_symbol = tristate_print_symbol,
+	.print_comment = kconfig_print_comment,
+};
+
+static void conf_write_symbol(FILE *fp, struct symbol *sym,
+			      struct conf_printer *printer, void *printer_arg)
+{
+	const char *str;
+
+	switch (sym->type) {
+	case S_OTHER:
+	case S_UNKNOWN:
+		break;
+	case S_STRING:
+		str = sym_get_string_value(sym);
+		str = sym_escape_string_value(str);
+		printer->print_symbol(fp, sym, str, printer_arg);
+		free((void *)str);
+		break;
+	default:
+		str = sym_get_string_value(sym);
+		printer->print_symbol(fp, sym, str, printer_arg);
+	}
+}
+
+static void
+conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
+{
+	char buf[256];
+
+	snprintf(buf, sizeof(buf),
+	    "\n"
+	    "Automatically generated file; DO NOT EDIT.\n"
+	    "%s\n",
+	    rootmenu.prompt->text);
+
+	printer->print_comment(fp, buf, printer_arg);
+}
+
+/*
+ * Write out a minimal config.
+ * All values that has default values are skipped as this is redundant.
+ */
+int conf_write_defconfig(const char *filename)
+{
+	struct symbol *sym;
+	struct menu *menu;
+	FILE *out;
+
+	out = fopen(filename, "w");
+	if (!out)
+		return 1;
+
+	sym_clear_all_valid();
+
+	/* Traverse all menus to find all relevant symbols */
+	menu = rootmenu.list;
+
+	while (menu != NULL)
+	{
+		sym = menu->sym;
+		if (sym == NULL) {
+			if (!menu_is_visible(menu))
+				goto next_menu;
+		} else if (!sym_is_choice(sym)) {
+			sym_calc_value(sym);
+			if (!(sym->flags & SYMBOL_WRITE))
+				goto next_menu;
+			sym->flags &= ~SYMBOL_WRITE;
+			/* If we cannot change the symbol - skip */
+			if (!sym_is_changable(sym))
+				goto next_menu;
+			/* If symbol equals to default value - skip */
+			if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
+				goto next_menu;
+
+			/*
+			 * If symbol is a choice value and equals to the
+			 * default for a choice - skip.
+			 * But only if value is bool and equal to "y" and
+			 * choice is not "optional".
+			 * (If choice is "optional" then all values can be "n")
+			 */
+			if (sym_is_choice_value(sym)) {
+				struct symbol *cs;
+				struct symbol *ds;
+
+				cs = prop_get_symbol(sym_get_choice_prop(sym));
+				ds = sym_choice_default(cs);
+				if (!sym_is_optional(cs) && sym == ds) {
+					if ((sym->type == S_BOOLEAN) &&
+					    sym_get_tristate_value(sym) == yes)
+						goto next_menu;
+				}
+			}
+			conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
+		}
+next_menu:
+		if (menu->list != NULL) {
+			menu = menu->list;
+		}
+		else if (menu->next != NULL) {
+			menu = menu->next;
+		} else {
+			while ((menu = menu->parent)) {
+				if (menu->next != NULL) {
+					menu = menu->next;
+					break;
+				}
+			}
+		}
+	}
+	fclose(out);
+	return 0;
+}
+
+int conf_write(const char *name)
+{
+	FILE *out;
+	struct symbol *sym;
+	struct menu *menu;
+	const char *basename;
+	const char *str;
+	char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
+	char *env;
+
+	dirname[0] = 0;
+	if (name && name[0]) {
+		struct stat st;
+		char *slash;
+
+		if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
+			strcpy(dirname, name);
+			strcat(dirname, "/");
+			basename = conf_get_configname();
+		} else if ((slash = strrchr(name, '/'))) {
+			int size = slash - name + 1;
+			memcpy(dirname, name, size);
+			dirname[size] = 0;
+			if (slash[1])
+				basename = slash + 1;
+			else
+				basename = conf_get_configname();
+		} else
+			basename = name;
+	} else
+		basename = conf_get_configname();
+
+	sprintf(newname, "%s%s", dirname, basename);
+	env = getenv("KCONFIG_OVERWRITECONFIG");
+	if (!env || !*env) {
+		sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
+		out = fopen(tmpname, "w");
+	} else {
+		*tmpname = 0;
+		out = fopen(newname, "w");
+	}
+	if (!out)
+		return 1;
+
+	conf_write_heading(out, &kconfig_printer_cb, NULL);
+
+	if (!conf_get_changed())
+		sym_clear_all_valid();
+
+	menu = rootmenu.list;
+	while (menu) {
+		sym = menu->sym;
+		if (!sym) {
+			if (!menu_is_visible(menu))
+				goto next;
+			str = menu_get_prompt(menu);
+			fprintf(out, "\n"
+				     "#\n"
+				     "# %s\n"
+				     "#\n", str);
+		} else if (!(sym->flags & SYMBOL_CHOICE)) {
+			sym_calc_value(sym);
+			if (!(sym->flags & SYMBOL_WRITE))
+				goto next;
+			sym->flags &= ~SYMBOL_WRITE;
+
+			conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
+		}
+
+next:
+		if (menu->list) {
+			menu = menu->list;
+			continue;
+		}
+		if (menu->next)
+			menu = menu->next;
+		else while ((menu = menu->parent)) {
+			if (menu->next) {
+				menu = menu->next;
+				break;
+			}
+		}
+	}
+	fclose(out);
+
+	if (*tmpname) {
+		strcat(dirname, basename);
+		strcat(dirname, ".old");
+		rename(newname, dirname);
+		if (rename(tmpname, newname))
+			return 1;
+	}
+
+	conf_message(_("configuration written to %s"), newname);
+
+	sym_set_change_count(0);
+
+	return 0;
+}
+
+static int conf_split_config(void)
+{
+	const char *name;
+	char path[PATH_MAX+1];
+	char *s, *d, c;
+	struct symbol *sym;
+	struct stat sb;
+	int res, i, fd;
+
+	name = conf_get_autoconfig_name();
+	conf_read_simple(name, S_DEF_AUTO);
+
+	if (chdir("include/config"))
+		return 1;
+
+	res = 0;
+	for_all_symbols(i, sym) {
+		sym_calc_value(sym);
+		if ((sym->flags & SYMBOL_AUTO) || !sym->name)
+			continue;
+		if (sym->flags & SYMBOL_WRITE) {
+			if (sym->flags & SYMBOL_DEF_AUTO) {
+				/*
+				 * symbol has old and new value,
+				 * so compare them...
+				 */
+				switch (sym->type) {
+				case S_BOOLEAN:
+				case S_TRISTATE:
+					if (sym_get_tristate_value(sym) ==
+					    sym->def[S_DEF_AUTO].tri)
+						continue;
+					break;
+				case S_STRING:
+				case S_HEX:
+				case S_INT:
+					if (!strcmp(sym_get_string_value(sym),
+						    sym->def[S_DEF_AUTO].val))
+						continue;
+					break;
+				default:
+					break;
+				}
+			} else {
+				/*
+				 * If there is no old value, only 'no' (unset)
+				 * is allowed as new value.
+				 */
+				switch (sym->type) {
+				case S_BOOLEAN:
+				case S_TRISTATE:
+					if (sym_get_tristate_value(sym) == no)
+						continue;
+					break;
+				default:
+					break;
+				}
+			}
+		} else if (!(sym->flags & SYMBOL_DEF_AUTO))
+			/* There is neither an old nor a new value. */
+			continue;
+		/* else
+		 *	There is an old value, but no new value ('no' (unset)
+		 *	isn't saved in auto.conf, so the old value is always
+		 *	different from 'no').
+		 */
+
+		/* Replace all '_' and append ".h" */
+		s = sym->name;
+		d = path;
+		while ((c = *s++)) {
+			c = tolower(c);
+			*d++ = (c == '_') ? '/' : c;
+		}
+		strcpy(d, ".h");
+
+		/* Assume directory path already exists. */
+		fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+		if (fd == -1) {
+			if (errno != ENOENT) {
+				res = 1;
+				break;
+			}
+			/*
+			 * Create directory components,
+			 * unless they exist already.
+			 */
+			d = path;
+			while ((d = strchr(d, '/'))) {
+				*d = 0;
+				if (stat(path, &sb) && mkdir(path, 0755)) {
+					res = 1;
+					goto out;
+				}
+				*d++ = '/';
+			}
+			/* Try it again. */
+			fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+			if (fd == -1) {
+				res = 1;
+				break;
+			}
+		}
+		close(fd);
+	}
+out:
+	if (chdir("../.."))
+		return 1;
+
+	return res;
+}
+
+int conf_write_autoconf(void)
+{
+	struct symbol *sym;
+	const char *name;
+	FILE *out, *tristate, *out_h;
+	int i;
+
+	sym_clear_all_valid();
+
+	file_write_dep("include/config/auto.conf.cmd");
+
+	if (conf_split_config())
+		return 1;
+
+	out = fopen(".tmpconfig", "w");
+	if (!out)
+		return 1;
+
+	tristate = fopen(".tmpconfig_tristate", "w");
+	if (!tristate) {
+		fclose(out);
+		return 1;
+	}
+
+	out_h = fopen(".tmpconfig.h", "w");
+	if (!out_h) {
+		fclose(out);
+		fclose(tristate);
+		return 1;
+	}
+
+	conf_write_heading(out, &kconfig_printer_cb, NULL);
+
+	conf_write_heading(tristate, &tristate_printer_cb, NULL);
+
+	conf_write_heading(out_h, &header_printer_cb, NULL);
+
+	for_all_symbols(i, sym) {
+		sym_calc_value(sym);
+		if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
+			continue;
+
+		/* write symbol to auto.conf, tristate and header files */
+		conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
+
+		conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
+
+		conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
+	}
+	fclose(out);
+	fclose(tristate);
+	fclose(out_h);
+
+	name = getenv("KCONFIG_AUTOHEADER");
+	if (!name)
+		name = "include/generated/autoconf.h";
+	if (rename(".tmpconfig.h", name))
+		return 1;
+	name = getenv("KCONFIG_TRISTATE");
+	if (!name)
+		name = "include/config/tristate.conf";
+	if (rename(".tmpconfig_tristate", name))
+		return 1;
+	name = conf_get_autoconfig_name();
+	/*
+	 * This must be the last step, kbuild has a dependency on auto.conf
+	 * and this marks the successful completion of the previous steps.
+	 */
+	if (rename(".tmpconfig", name))
+		return 1;
+
+	return 0;
+}
+
+static int sym_change_count;
+static void (*conf_changed_callback)(void);
+
+void sym_set_change_count(int count)
+{
+	int _sym_change_count = sym_change_count;
+	sym_change_count = count;
+	if (conf_changed_callback &&
+	    (bool)_sym_change_count != (bool)count)
+		conf_changed_callback();
+}
+
+void sym_add_change_count(int count)
+{
+	sym_set_change_count(count + sym_change_count);
+}
+
+bool conf_get_changed(void)
+{
+	return sym_change_count;
+}
+
+void conf_set_changed_callback(void (*fn)(void))
+{
+	conf_changed_callback = fn;
+}
+
+static bool randomize_choice_values(struct symbol *csym)
+{
+	struct property *prop;
+	struct symbol *sym;
+	struct expr *e;
+	int cnt, def;
+
+	/*
+	 * If choice is mod then we may have more items selected
+	 * and if no then no-one.
+	 * In both cases stop.
+	 */
+	if (csym->curr.tri != yes)
+		return false;
+
+	prop = sym_get_choice_prop(csym);
+
+	/* count entries in choice block */
+	cnt = 0;
+	expr_list_for_each_sym(prop->expr, e, sym)
+		cnt++;
+
+	/*
+	 * find a random value and set it to yes,
+	 * set the rest to no so we have only one set
+	 */
+	def = (rand() % cnt);
+
+	cnt = 0;
+	expr_list_for_each_sym(prop->expr, e, sym) {
+		if (def == cnt++) {
+			sym->def[S_DEF_USER].tri = yes;
+			csym->def[S_DEF_USER].val = sym;
+		}
+		else {
+			sym->def[S_DEF_USER].tri = no;
+		}
+		sym->flags |= SYMBOL_DEF_USER;
+		/* clear VALID to get value calculated */
+		sym->flags &= ~SYMBOL_VALID;
+	}
+	csym->flags |= SYMBOL_DEF_USER;
+	/* clear VALID to get value calculated */
+	csym->flags &= ~(SYMBOL_VALID);
+
+	return true;
+}
+
+void set_all_choice_values(struct symbol *csym)
+{
+	struct property *prop;
+	struct symbol *sym;
+	struct expr *e;
+
+	prop = sym_get_choice_prop(csym);
+
+	/*
+	 * Set all non-assinged choice values to no
+	 */
+	expr_list_for_each_sym(prop->expr, e, sym) {
+		if (!sym_has_value(sym))
+			sym->def[S_DEF_USER].tri = no;
+	}
+	csym->flags |= SYMBOL_DEF_USER;
+	/* clear VALID to get value calculated */
+	csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
+}
+
+bool conf_set_all_new_symbols(enum conf_def_mode mode)
+{
+	struct symbol *sym, *csym;
+	int i, cnt, pby, pty, ptm;	/* pby: probability of boolean  = y
+					 * pty: probability of tristate = y
+					 * ptm: probability of tristate = m
+					 */
+
+	pby = 50; pty = ptm = 33; /* can't go as the default in switch-case
+				   * below, otherwise gcc whines about
+				   * -Wmaybe-uninitialized */
+	if (mode == def_random) {
+		int n, p[3];
+		char *env = getenv("KCONFIG_PROBABILITY");
+		n = 0;
+		while( env && *env ) {
+			char *endp;
+			int tmp = strtol( env, &endp, 10 );
+			if( tmp >= 0 && tmp <= 100 ) {
+				p[n++] = tmp;
+			} else {
+				errno = ERANGE;
+				perror( "KCONFIG_PROBABILITY" );
+				exit( 1 );
+			}
+			env = (*endp == ':') ? endp+1 : endp;
+			if( n >=3 ) {
+				break;
+			}
+		}
+		switch( n ) {
+		case 1:
+			pby = p[0]; ptm = pby/2; pty = pby-ptm;
+			break;
+		case 2:
+			pty = p[0]; ptm = p[1]; pby = pty + ptm;
+			break;
+		case 3:
+			pby = p[0]; pty = p[1]; ptm = p[2];
+			break;
+		}
+
+		if( pty+ptm > 100 ) {
+			errno = ERANGE;
+			perror( "KCONFIG_PROBABILITY" );
+			exit( 1 );
+		}
+	}
+	bool has_changed = false;
+
+	sym_clear_all_valid();
+
+	for_all_symbols(i, sym) {
+		if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID))
+			continue;
+		switch (sym_get_type(sym)) {
+		case S_BOOLEAN:
+		case S_TRISTATE:
+			has_changed = true;
+			switch (mode) {
+			case def_yes:
+				sym->def[S_DEF_USER].tri = yes;
+				break;
+			case def_mod:
+				sym->def[S_DEF_USER].tri = mod;
+				break;
+			case def_no:
+				if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
+					sym->def[S_DEF_USER].tri = yes;
+				else
+					sym->def[S_DEF_USER].tri = no;
+				break;
+			case def_random:
+				sym->def[S_DEF_USER].tri = no;
+				cnt = rand() % 100;
+				if (sym->type == S_TRISTATE) {
+					if (cnt < pty)
+						sym->def[S_DEF_USER].tri = yes;
+					else if (cnt < (pty+ptm))
+						sym->def[S_DEF_USER].tri = mod;
+				} else if (cnt < pby)
+					sym->def[S_DEF_USER].tri = yes;
+				break;
+			default:
+				continue;
+			}
+			if (!(sym_is_choice(sym) && mode == def_random))
+				sym->flags |= SYMBOL_DEF_USER;
+			break;
+		default:
+			break;
+		}
+
+	}
+
+	/*
+	 * We have different type of choice blocks.
+	 * If curr.tri equals to mod then we can select several
+	 * choice symbols in one block.
+	 * In this case we do nothing.
+	 * If curr.tri equals yes then only one symbol can be
+	 * selected in a choice block and we set it to yes,
+	 * and the rest to no.
+	 */
+	if (mode != def_random) {
+		for_all_symbols(i, csym) {
+			if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
+			    sym_is_choice_value(csym))
+				csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
+		}
+	}
+
+	for_all_symbols(i, csym) {
+		if (sym_has_value(csym) || !sym_is_choice(csym))
+			continue;
+
+		sym_calc_value(csym);
+		if (mode == def_random)
+			has_changed = randomize_choice_values(csym);
+		else {
+			set_all_choice_values(csym);
+			has_changed = true;
+		}
+	}
+
+	return has_changed;
+}
diff --git a/scripts/config/expr.c b/scripts/config/expr.c
new file mode 100644
index 0000000..d662652
--- /dev/null
+++ b/scripts/config/expr.c
@@ -0,0 +1,1168 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "lkc.h"
+
+#define DEBUG_EXPR	0
+
+struct expr *expr_alloc_symbol(struct symbol *sym)
+{
+	struct expr *e = xcalloc(1, sizeof(*e));
+	e->type = E_SYMBOL;
+	e->left.sym = sym;
+	return e;
+}
+
+struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
+{
+	struct expr *e = xcalloc(1, sizeof(*e));
+	e->type = type;
+	e->left.expr = ce;
+	return e;
+}
+
+struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2)
+{
+	struct expr *e = xcalloc(1, sizeof(*e));
+	e->type = type;
+	e->left.expr = e1;
+	e->right.expr = e2;
+	return e;
+}
+
+struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2)
+{
+	struct expr *e = xcalloc(1, sizeof(*e));
+	e->type = type;
+	e->left.sym = s1;
+	e->right.sym = s2;
+	return e;
+}
+
+struct expr *expr_alloc_and(struct expr *e1, struct expr *e2)
+{
+	if (!e1)
+		return e2;
+	return e2 ? expr_alloc_two(E_AND, e1, e2) : e1;
+}
+
+struct expr *expr_alloc_or(struct expr *e1, struct expr *e2)
+{
+	if (!e1)
+		return e2;
+	return e2 ? expr_alloc_two(E_OR, e1, e2) : e1;
+}
+
+struct expr *expr_copy(const struct expr *org)
+{
+	struct expr *e;
+
+	if (!org)
+		return NULL;
+
+	e = xmalloc(sizeof(*org));
+	memcpy(e, org, sizeof(*org));
+	switch (org->type) {
+	case E_SYMBOL:
+		e->left = org->left;
+		break;
+	case E_NOT:
+		e->left.expr = expr_copy(org->left.expr);
+		break;
+	case E_EQUAL:
+	case E_UNEQUAL:
+		e->left.sym = org->left.sym;
+		e->right.sym = org->right.sym;
+		break;
+	case E_AND:
+	case E_OR:
+	case E_LIST:
+		e->left.expr = expr_copy(org->left.expr);
+		e->right.expr = expr_copy(org->right.expr);
+		break;
+	default:
+		printf("can't copy type %d\n", e->type);
+		free(e);
+		e = NULL;
+		break;
+	}
+
+	return e;
+}
+
+void expr_free(struct expr *e)
+{
+	if (!e)
+		return;
+
+	switch (e->type) {
+	case E_SYMBOL:
+		break;
+	case E_NOT:
+		expr_free(e->left.expr);
+		return;
+	case E_EQUAL:
+	case E_UNEQUAL:
+		break;
+	case E_OR:
+	case E_AND:
+		expr_free(e->left.expr);
+		expr_free(e->right.expr);
+		break;
+	default:
+		printf("how to free type %d?\n", e->type);
+		break;
+	}
+	free(e);
+}
+
+static int trans_count;
+
+#define e1 (*ep1)
+#define e2 (*ep2)
+
+static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct expr **ep2)
+{
+	if (e1->type == type) {
+		__expr_eliminate_eq(type, &e1->left.expr, &e2);
+		__expr_eliminate_eq(type, &e1->right.expr, &e2);
+		return;
+	}
+	if (e2->type == type) {
+		__expr_eliminate_eq(type, &e1, &e2->left.expr);
+		__expr_eliminate_eq(type, &e1, &e2->right.expr);
+		return;
+	}
+	if (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
+	    e1->left.sym == e2->left.sym &&
+	    (e1->left.sym == &symbol_yes || e1->left.sym == &symbol_no))
+		return;
+	if (!expr_eq(e1, e2))
+		return;
+	trans_count++;
+	expr_free(e1); expr_free(e2);
+	switch (type) {
+	case E_OR:
+		e1 = expr_alloc_symbol(&symbol_no);
+		e2 = expr_alloc_symbol(&symbol_no);
+		break;
+	case E_AND:
+		e1 = expr_alloc_symbol(&symbol_yes);
+		e2 = expr_alloc_symbol(&symbol_yes);
+		break;
+	default:
+		;
+	}
+}
+
+void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
+{
+	if (!e1 || !e2)
+		return;
+	switch (e1->type) {
+	case E_OR:
+	case E_AND:
+		__expr_eliminate_eq(e1->type, ep1, ep2);
+	default:
+		;
+	}
+	if (e1->type != e2->type) switch (e2->type) {
+	case E_OR:
+	case E_AND:
+		__expr_eliminate_eq(e2->type, ep1, ep2);
+	default:
+		;
+	}
+	e1 = expr_eliminate_yn(e1);
+	e2 = expr_eliminate_yn(e2);
+}
+
+#undef e1
+#undef e2
+
+int expr_eq(struct expr *e1, struct expr *e2)
+{
+	int res, old_count;
+
+	if (e1->type != e2->type)
+		return 0;
+	switch (e1->type) {
+	case E_EQUAL:
+	case E_UNEQUAL:
+		return e1->left.sym == e2->left.sym && e1->right.sym == e2->right.sym;
+	case E_SYMBOL:
+		return e1->left.sym == e2->left.sym;
+	case E_NOT:
+		return expr_eq(e1->left.expr, e2->left.expr);
+	case E_AND:
+	case E_OR:
+		e1 = expr_copy(e1);
+		e2 = expr_copy(e2);
+		old_count = trans_count;
+		expr_eliminate_eq(&e1, &e2);
+		res = (e1->type == E_SYMBOL && e2->type == E_SYMBOL &&
+		       e1->left.sym == e2->left.sym);
+		expr_free(e1);
+		expr_free(e2);
+		trans_count = old_count;
+		return res;
+	case E_LIST:
+	case E_RANGE:
+	case E_NONE:
+		/* panic */;
+	}
+
+	if (DEBUG_EXPR) {
+		expr_fprint(e1, stdout);
+		printf(" = ");
+		expr_fprint(e2, stdout);
+		printf(" ?\n");
+	}
+
+	return 0;
+}
+
+struct expr *expr_eliminate_yn(struct expr *e)
+{
+	struct expr *tmp;
+
+	if (e) switch (e->type) {
+	case E_AND:
+		e->left.expr = expr_eliminate_yn(e->left.expr);
+		e->right.expr = expr_eliminate_yn(e->right.expr);
+		if (e->left.expr->type == E_SYMBOL) {
+			if (e->left.expr->left.sym == &symbol_no) {
+				expr_free(e->left.expr);
+				expr_free(e->right.expr);
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_no;
+				e->right.expr = NULL;
+				return e;
+			} else if (e->left.expr->left.sym == &symbol_yes) {
+				free(e->left.expr);
+				tmp = e->right.expr;
+				*e = *(e->right.expr);
+				free(tmp);
+				return e;
+			}
+		}
+		if (e->right.expr->type == E_SYMBOL) {
+			if (e->right.expr->left.sym == &symbol_no) {
+				expr_free(e->left.expr);
+				expr_free(e->right.expr);
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_no;
+				e->right.expr = NULL;
+				return e;
+			} else if (e->right.expr->left.sym == &symbol_yes) {
+				free(e->right.expr);
+				tmp = e->left.expr;
+				*e = *(e->left.expr);
+				free(tmp);
+				return e;
+			}
+		}
+		break;
+	case E_OR:
+		e->left.expr = expr_eliminate_yn(e->left.expr);
+		e->right.expr = expr_eliminate_yn(e->right.expr);
+		if (e->left.expr->type == E_SYMBOL) {
+			if (e->left.expr->left.sym == &symbol_no) {
+				free(e->left.expr);
+				tmp = e->right.expr;
+				*e = *(e->right.expr);
+				free(tmp);
+				return e;
+			} else if (e->left.expr->left.sym == &symbol_yes) {
+				expr_free(e->left.expr);
+				expr_free(e->right.expr);
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_yes;
+				e->right.expr = NULL;
+				return e;
+			}
+		}
+		if (e->right.expr->type == E_SYMBOL) {
+			if (e->right.expr->left.sym == &symbol_no) {
+				free(e->right.expr);
+				tmp = e->left.expr;
+				*e = *(e->left.expr);
+				free(tmp);
+				return e;
+			} else if (e->right.expr->left.sym == &symbol_yes) {
+				expr_free(e->left.expr);
+				expr_free(e->right.expr);
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_yes;
+				e->right.expr = NULL;
+				return e;
+			}
+		}
+		break;
+	default:
+		;
+	}
+	return e;
+}
+
+/*
+ * bool FOO!=n => FOO
+ */
+struct expr *expr_trans_bool(struct expr *e)
+{
+	if (!e)
+		return NULL;
+	switch (e->type) {
+	case E_AND:
+	case E_OR:
+	case E_NOT:
+		e->left.expr = expr_trans_bool(e->left.expr);
+		e->right.expr = expr_trans_bool(e->right.expr);
+		break;
+	case E_UNEQUAL:
+		// FOO!=n -> FOO
+		if (e->left.sym->type == S_TRISTATE) {
+			if (e->right.sym == &symbol_no) {
+				e->type = E_SYMBOL;
+				e->right.sym = NULL;
+			}
+		}
+		break;
+	default:
+		;
+	}
+	return e;
+}
+
+/*
+ * e1 || e2 -> ?
+ */
+static struct expr *expr_join_or(struct expr *e1, struct expr *e2)
+{
+	struct expr *tmp;
+	struct symbol *sym1, *sym2;
+
+	if (expr_eq(e1, e2))
+		return expr_copy(e1);
+	if (e1->type != E_EQUAL && e1->type != E_UNEQUAL && e1->type != E_SYMBOL && e1->type != E_NOT)
+		return NULL;
+	if (e2->type != E_EQUAL && e2->type != E_UNEQUAL && e2->type != E_SYMBOL && e2->type != E_NOT)
+		return NULL;
+	if (e1->type == E_NOT) {
+		tmp = e1->left.expr;
+		if (tmp->type != E_EQUAL && tmp->type != E_UNEQUAL && tmp->type != E_SYMBOL)
+			return NULL;
+		sym1 = tmp->left.sym;
+	} else
+		sym1 = e1->left.sym;
+	if (e2->type == E_NOT) {
+		if (e2->left.expr->type != E_SYMBOL)
+			return NULL;
+		sym2 = e2->left.expr->left.sym;
+	} else
+		sym2 = e2->left.sym;
+	if (sym1 != sym2)
+		return NULL;
+	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)
+		return NULL;
+	if (sym1->type == S_TRISTATE) {
+		if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
+		    ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_mod) ||
+		     (e1->right.sym == &symbol_mod && e2->right.sym == &symbol_yes))) {
+			// (a='y') || (a='m') -> (a!='n')
+			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_no);
+		}
+		if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
+		    ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_no) ||
+		     (e1->right.sym == &symbol_no && e2->right.sym == &symbol_yes))) {
+			// (a='y') || (a='n') -> (a!='m')
+			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_mod);
+		}
+		if (e1->type == E_EQUAL && e2->type == E_EQUAL &&
+		    ((e1->right.sym == &symbol_mod && e2->right.sym == &symbol_no) ||
+		     (e1->right.sym == &symbol_no && e2->right.sym == &symbol_mod))) {
+			// (a='m') || (a='n') -> (a!='y')
+			return expr_alloc_comp(E_UNEQUAL, sym1, &symbol_yes);
+		}
+	}
+	if (sym1->type == S_BOOLEAN && sym1 == sym2) {
+		if ((e1->type == E_NOT && e1->left.expr->type == E_SYMBOL && e2->type == E_SYMBOL) ||
+		    (e2->type == E_NOT && e2->left.expr->type == E_SYMBOL && e1->type == E_SYMBOL))
+			return expr_alloc_symbol(&symbol_yes);
+	}
+
+	if (DEBUG_EXPR) {
+		printf("optimize (");
+		expr_fprint(e1, stdout);
+		printf(") || (");
+		expr_fprint(e2, stdout);
+		printf(")?\n");
+	}
+	return NULL;
+}
+
+static struct expr *expr_join_and(struct expr *e1, struct expr *e2)
+{
+	struct expr *tmp;
+	struct symbol *sym1, *sym2;
+
+	if (expr_eq(e1, e2))
+		return expr_copy(e1);
+	if (e1->type != E_EQUAL && e1->type != E_UNEQUAL && e1->type != E_SYMBOL && e1->type != E_NOT)
+		return NULL;
+	if (e2->type != E_EQUAL && e2->type != E_UNEQUAL && e2->type != E_SYMBOL && e2->type != E_NOT)
+		return NULL;
+	if (e1->type == E_NOT) {
+		tmp = e1->left.expr;
+		if (tmp->type != E_EQUAL && tmp->type != E_UNEQUAL && tmp->type != E_SYMBOL)
+			return NULL;
+		sym1 = tmp->left.sym;
+	} else
+		sym1 = e1->left.sym;
+	if (e2->type == E_NOT) {
+		if (e2->left.expr->type != E_SYMBOL)
+			return NULL;
+		sym2 = e2->left.expr->left.sym;
+	} else
+		sym2 = e2->left.sym;
+	if (sym1 != sym2)
+		return NULL;
+	if (sym1->type != S_BOOLEAN && sym1->type != S_TRISTATE)
+		return NULL;
+
+	if ((e1->type == E_SYMBOL && e2->type == E_EQUAL && e2->right.sym == &symbol_yes) ||
+	    (e2->type == E_SYMBOL && e1->type == E_EQUAL && e1->right.sym == &symbol_yes))
+		// (a) && (a='y') -> (a='y')
+		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
+
+	if ((e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_no) ||
+	    (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_no))
+		// (a) && (a!='n') -> (a)
+		return expr_alloc_symbol(sym1);
+
+	if ((e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_mod) ||
+	    (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_mod))
+		// (a) && (a!='m') -> (a='y')
+		return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
+
+	if (sym1->type == S_TRISTATE) {
+		if (e1->type == E_EQUAL && e2->type == E_UNEQUAL) {
+			// (a='b') && (a!='c') -> 'b'='c' ? 'n' : a='b'
+			sym2 = e1->right.sym;
+			if ((e2->right.sym->flags & SYMBOL_CONST) && (sym2->flags & SYMBOL_CONST))
+				return sym2 != e2->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)
+							     : expr_alloc_symbol(&symbol_no);
+		}
+		if (e1->type == E_UNEQUAL && e2->type == E_EQUAL) {
+			// (a='b') && (a!='c') -> 'b'='c' ? 'n' : a='b'
+			sym2 = e2->right.sym;
+			if ((e1->right.sym->flags & SYMBOL_CONST) && (sym2->flags & SYMBOL_CONST))
+				return sym2 != e1->right.sym ? expr_alloc_comp(E_EQUAL, sym1, sym2)
+							     : expr_alloc_symbol(&symbol_no);
+		}
+		if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
+			   ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_no) ||
+			    (e1->right.sym == &symbol_no && e2->right.sym == &symbol_yes)))
+			// (a!='y') && (a!='n') -> (a='m')
+			return expr_alloc_comp(E_EQUAL, sym1, &symbol_mod);
+
+		if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
+			   ((e1->right.sym == &symbol_yes && e2->right.sym == &symbol_mod) ||
+			    (e1->right.sym == &symbol_mod && e2->right.sym == &symbol_yes)))
+			// (a!='y') && (a!='m') -> (a='n')
+			return expr_alloc_comp(E_EQUAL, sym1, &symbol_no);
+
+		if (e1->type == E_UNEQUAL && e2->type == E_UNEQUAL &&
+			   ((e1->right.sym == &symbol_mod && e2->right.sym == &symbol_no) ||
+			    (e1->right.sym == &symbol_no && e2->right.sym == &symbol_mod)))
+			// (a!='m') && (a!='n') -> (a='m')
+			return expr_alloc_comp(E_EQUAL, sym1, &symbol_yes);
+
+		if ((e1->type == E_SYMBOL && e2->type == E_EQUAL && e2->right.sym == &symbol_mod) ||
+		    (e2->type == E_SYMBOL && e1->type == E_EQUAL && e1->right.sym == &symbol_mod) ||
+		    (e1->type == E_SYMBOL && e2->type == E_UNEQUAL && e2->right.sym == &symbol_yes) ||
+		    (e2->type == E_SYMBOL && e1->type == E_UNEQUAL && e1->right.sym == &symbol_yes))
+			return NULL;
+	}
+
+	if (DEBUG_EXPR) {
+		printf("optimize (");
+		expr_fprint(e1, stdout);
+		printf(") && (");
+		expr_fprint(e2, stdout);
+		printf(")?\n");
+	}
+	return NULL;
+}
+
+static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct expr **ep2)
+{
+#define e1 (*ep1)
+#define e2 (*ep2)
+	struct expr *tmp;
+
+	if (e1->type == type) {
+		expr_eliminate_dups1(type, &e1->left.expr, &e2);
+		expr_eliminate_dups1(type, &e1->right.expr, &e2);
+		return;
+	}
+	if (e2->type == type) {
+		expr_eliminate_dups1(type, &e1, &e2->left.expr);
+		expr_eliminate_dups1(type, &e1, &e2->right.expr);
+		return;
+	}
+	if (e1 == e2)
+		return;
+
+	switch (e1->type) {
+	case E_OR: case E_AND:
+		expr_eliminate_dups1(e1->type, &e1, &e1);
+	default:
+		;
+	}
+
+	switch (type) {
+	case E_OR:
+		tmp = expr_join_or(e1, e2);
+		if (tmp) {
+			expr_free(e1); expr_free(e2);
+			e1 = expr_alloc_symbol(&symbol_no);
+			e2 = tmp;
+			trans_count++;
+		}
+		break;
+	case E_AND:
+		tmp = expr_join_and(e1, e2);
+		if (tmp) {
+			expr_free(e1); expr_free(e2);
+			e1 = expr_alloc_symbol(&symbol_yes);
+			e2 = tmp;
+			trans_count++;
+		}
+		break;
+	default:
+		;
+	}
+#undef e1
+#undef e2
+}
+
+static void expr_eliminate_dups2(enum expr_type type, struct expr **ep1, struct expr **ep2)
+{
+#define e1 (*ep1)
+#define e2 (*ep2)
+	struct expr *tmp, *tmp1, *tmp2;
+
+	if (e1->type == type) {
+		expr_eliminate_dups2(type, &e1->left.expr, &e2);
+		expr_eliminate_dups2(type, &e1->right.expr, &e2);
+		return;
+	}
+	if (e2->type == type) {
+		expr_eliminate_dups2(type, &e1, &e2->left.expr);
+		expr_eliminate_dups2(type, &e1, &e2->right.expr);
+	}
+	if (e1 == e2)
+		return;
+
+	switch (e1->type) {
+	case E_OR:
+		expr_eliminate_dups2(e1->type, &e1, &e1);
+		// (FOO || BAR) && (!FOO && !BAR) -> n
+		tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
+		tmp2 = expr_copy(e2);
+		tmp = expr_extract_eq_and(&tmp1, &tmp2);
+		if (expr_is_yes(tmp1)) {
+			expr_free(e1);
+			e1 = expr_alloc_symbol(&symbol_no);
+			trans_count++;
+		}
+		expr_free(tmp2);
+		expr_free(tmp1);
+		expr_free(tmp);
+		break;
+	case E_AND:
+		expr_eliminate_dups2(e1->type, &e1, &e1);
+		// (FOO && BAR) || (!FOO || !BAR) -> y
+		tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
+		tmp2 = expr_copy(e2);
+		tmp = expr_extract_eq_or(&tmp1, &tmp2);
+		if (expr_is_no(tmp1)) {
+			expr_free(e1);
+			e1 = expr_alloc_symbol(&symbol_yes);
+			trans_count++;
+		}
+		expr_free(tmp2);
+		expr_free(tmp1);
+		expr_free(tmp);
+		break;
+	default:
+		;
+	}
+#undef e1
+#undef e2
+}
+
+struct expr *expr_eliminate_dups(struct expr *e)
+{
+	int oldcount;
+	if (!e)
+		return e;
+
+	oldcount = trans_count;
+	while (1) {
+		trans_count = 0;
+		switch (e->type) {
+		case E_OR: case E_AND:
+			expr_eliminate_dups1(e->type, &e, &e);
+			expr_eliminate_dups2(e->type, &e, &e);
+		default:
+			;
+		}
+		if (!trans_count)
+			break;
+		e = expr_eliminate_yn(e);
+	}
+	trans_count = oldcount;
+	return e;
+}
+
+struct expr *expr_transform(struct expr *e)
+{
+	struct expr *tmp;
+
+	if (!e)
+		return NULL;
+	switch (e->type) {
+	case E_EQUAL:
+	case E_UNEQUAL:
+	case E_SYMBOL:
+	case E_LIST:
+		break;
+	default:
+		e->left.expr = expr_transform(e->left.expr);
+		e->right.expr = expr_transform(e->right.expr);
+	}
+
+	switch (e->type) {
+	case E_EQUAL:
+		if (e->left.sym->type != S_BOOLEAN)
+			break;
+		if (e->right.sym == &symbol_no) {
+			e->type = E_NOT;
+			e->left.expr = expr_alloc_symbol(e->left.sym);
+			e->right.sym = NULL;
+			break;
+		}
+		if (e->right.sym == &symbol_mod) {
+			printf("boolean symbol %s tested for 'm'? test forced to 'n'\n", e->left.sym->name);
+			e->type = E_SYMBOL;
+			e->left.sym = &symbol_no;
+			e->right.sym = NULL;
+			break;
+		}
+		if (e->right.sym == &symbol_yes) {
+			e->type = E_SYMBOL;
+			e->right.sym = NULL;
+			break;
+		}
+		break;
+	case E_UNEQUAL:
+		if (e->left.sym->type != S_BOOLEAN)
+			break;
+		if (e->right.sym == &symbol_no) {
+			e->type = E_SYMBOL;
+			e->right.sym = NULL;
+			break;
+		}
+		if (e->right.sym == &symbol_mod) {
+			printf("boolean symbol %s tested for 'm'? test forced to 'y'\n", e->left.sym->name);
+			e->type = E_SYMBOL;
+			e->left.sym = &symbol_yes;
+			e->right.sym = NULL;
+			break;
+		}
+		if (e->right.sym == &symbol_yes) {
+			e->type = E_NOT;
+			e->left.expr = expr_alloc_symbol(e->left.sym);
+			e->right.sym = NULL;
+			break;
+		}
+		break;
+	case E_NOT:
+		switch (e->left.expr->type) {
+		case E_NOT:
+			// !!a -> a
+			tmp = e->left.expr->left.expr;
+			free(e->left.expr);
+			free(e);
+			e = tmp;
+			e = expr_transform(e);
+			break;
+		case E_EQUAL:
+		case E_UNEQUAL:
+			// !a='x' -> a!='x'
+			tmp = e->left.expr;
+			free(e);
+			e = tmp;
+			e->type = e->type == E_EQUAL ? E_UNEQUAL : E_EQUAL;
+			break;
+		case E_OR:
+			// !(a || b) -> !a && !b
+			tmp = e->left.expr;
+			e->type = E_AND;
+			e->right.expr = expr_alloc_one(E_NOT, tmp->right.expr);
+			tmp->type = E_NOT;
+			tmp->right.expr = NULL;
+			e = expr_transform(e);
+			break;
+		case E_AND:
+			// !(a && b) -> !a || !b
+			tmp = e->left.expr;
+			e->type = E_OR;
+			e->right.expr = expr_alloc_one(E_NOT, tmp->right.expr);
+			tmp->type = E_NOT;
+			tmp->right.expr = NULL;
+			e = expr_transform(e);
+			break;
+		case E_SYMBOL:
+			if (e->left.expr->left.sym == &symbol_yes) {
+				// !'y' -> 'n'
+				tmp = e->left.expr;
+				free(e);
+				e = tmp;
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_no;
+				break;
+			}
+			if (e->left.expr->left.sym == &symbol_mod) {
+				// !'m' -> 'm'
+				tmp = e->left.expr;
+				free(e);
+				e = tmp;
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_mod;
+				break;
+			}
+			if (e->left.expr->left.sym == &symbol_no) {
+				// !'n' -> 'y'
+				tmp = e->left.expr;
+				free(e);
+				e = tmp;
+				e->type = E_SYMBOL;
+				e->left.sym = &symbol_yes;
+				break;
+			}
+			break;
+		default:
+			;
+		}
+		break;
+	default:
+		;
+	}
+	return e;
+}
+
+int expr_contains_symbol(struct expr *dep, struct symbol *sym)
+{
+	if (!dep)
+		return 0;
+
+	switch (dep->type) {
+	case E_AND:
+	case E_OR:
+		return expr_contains_symbol(dep->left.expr, sym) ||
+		       expr_contains_symbol(dep->right.expr, sym);
+	case E_SYMBOL:
+		return dep->left.sym == sym;
+	case E_EQUAL:
+	case E_UNEQUAL:
+		return dep->left.sym == sym ||
+		       dep->right.sym == sym;
+	case E_NOT:
+		return expr_contains_symbol(dep->left.expr, sym);
+	default:
+		;
+	}
+	return 0;
+}
+
+bool expr_depends_symbol(struct expr *dep, struct symbol *sym)
+{
+	if (!dep)
+		return false;
+
+	switch (dep->type) {
+	case E_AND:
+		return expr_depends_symbol(dep->left.expr, sym) ||
+		       expr_depends_symbol(dep->right.expr, sym);
+	case E_SYMBOL:
+		return dep->left.sym == sym;
+	case E_EQUAL:
+		if (dep->left.sym == sym) {
+			if (dep->right.sym == &symbol_yes || dep->right.sym == &symbol_mod)
+				return true;
+		}
+		break;
+	case E_UNEQUAL:
+		if (dep->left.sym == sym) {
+			if (dep->right.sym == &symbol_no)
+				return true;
+		}
+		break;
+	default:
+		;
+	}
+ 	return false;
+}
+
+struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
+{
+	struct expr *tmp = NULL;
+	expr_extract_eq(E_AND, &tmp, ep1, ep2);
+	if (tmp) {
+		*ep1 = expr_eliminate_yn(*ep1);
+		*ep2 = expr_eliminate_yn(*ep2);
+	}
+	return tmp;
+}
+
+struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
+{
+	struct expr *tmp = NULL;
+	expr_extract_eq(E_OR, &tmp, ep1, ep2);
+	if (tmp) {
+		*ep1 = expr_eliminate_yn(*ep1);
+		*ep2 = expr_eliminate_yn(*ep2);
+	}
+	return tmp;
+}
+
+void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
+{
+#define e1 (*ep1)
+#define e2 (*ep2)
+	if (e1->type == type) {
+		expr_extract_eq(type, ep, &e1->left.expr, &e2);
+		expr_extract_eq(type, ep, &e1->right.expr, &e2);
+		return;
+	}
+	if (e2->type == type) {
+		expr_extract_eq(type, ep, ep1, &e2->left.expr);
+		expr_extract_eq(type, ep, ep1, &e2->right.expr);
+		return;
+	}
+	if (expr_eq(e1, e2)) {
+		*ep = *ep ? expr_alloc_two(type, *ep, e1) : e1;
+		expr_free(e2);
+		if (type == E_AND) {
+			e1 = expr_alloc_symbol(&symbol_yes);
+			e2 = expr_alloc_symbol(&symbol_yes);
+		} else if (type == E_OR) {
+			e1 = expr_alloc_symbol(&symbol_no);
+			e2 = expr_alloc_symbol(&symbol_no);
+		}
+	}
+#undef e1
+#undef e2
+}
+
+struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym)
+{
+	struct expr *e1, *e2;
+
+	if (!e) {
+		e = expr_alloc_symbol(sym);
+		if (type == E_UNEQUAL)
+			e = expr_alloc_one(E_NOT, e);
+		return e;
+	}
+	switch (e->type) {
+	case E_AND:
+		e1 = expr_trans_compare(e->left.expr, E_EQUAL, sym);
+		e2 = expr_trans_compare(e->right.expr, E_EQUAL, sym);
+		if (sym == &symbol_yes)
+			e = expr_alloc_two(E_AND, e1, e2);
+		if (sym == &symbol_no)
+			e = expr_alloc_two(E_OR, e1, e2);
+		if (type == E_UNEQUAL)
+			e = expr_alloc_one(E_NOT, e);
+		return e;
+	case E_OR:
+		e1 = expr_trans_compare(e->left.expr, E_EQUAL, sym);
+		e2 = expr_trans_compare(e->right.expr, E_EQUAL, sym);
+		if (sym == &symbol_yes)
+			e = expr_alloc_two(E_OR, e1, e2);
+		if (sym == &symbol_no)
+			e = expr_alloc_two(E_AND, e1, e2);
+		if (type == E_UNEQUAL)
+			e = expr_alloc_one(E_NOT, e);
+		return e;
+	case E_NOT:
+		return expr_trans_compare(e->left.expr, type == E_EQUAL ? E_UNEQUAL : E_EQUAL, sym);
+	case E_UNEQUAL:
+	case E_EQUAL:
+		if (type == E_EQUAL) {
+			if (sym == &symbol_yes)
+				return expr_copy(e);
+			if (sym == &symbol_mod)
+				return expr_alloc_symbol(&symbol_no);
+			if (sym == &symbol_no)
+				return expr_alloc_one(E_NOT, expr_copy(e));
+		} else {
+			if (sym == &symbol_yes)
+				return expr_alloc_one(E_NOT, expr_copy(e));
+			if (sym == &symbol_mod)
+				return expr_alloc_symbol(&symbol_yes);
+			if (sym == &symbol_no)
+				return expr_copy(e);
+		}
+		break;
+	case E_SYMBOL:
+		return expr_alloc_comp(type, e->left.sym, sym);
+	case E_LIST:
+	case E_RANGE:
+	case E_NONE:
+		/* panic */;
+	}
+	return NULL;
+}
+
+tristate expr_calc_value(struct expr *e)
+{
+	tristate val1, val2;
+	const char *str1, *str2;
+
+	if (!e)
+		return yes;
+
+	switch (e->type) {
+	case E_SYMBOL:
+		sym_calc_value(e->left.sym);
+		return e->left.sym->curr.tri;
+	case E_AND:
+		val1 = expr_calc_value(e->left.expr);
+		val2 = expr_calc_value(e->right.expr);
+		return EXPR_AND(val1, val2);
+	case E_OR:
+		val1 = expr_calc_value(e->left.expr);
+		val2 = expr_calc_value(e->right.expr);
+		return EXPR_OR(val1, val2);
+	case E_NOT:
+		val1 = expr_calc_value(e->left.expr);
+		return EXPR_NOT(val1);
+	case E_EQUAL:
+		sym_calc_value(e->left.sym);
+		sym_calc_value(e->right.sym);
+		str1 = sym_get_string_value(e->left.sym);
+		str2 = sym_get_string_value(e->right.sym);
+		return !strcmp(str1, str2) ? yes : no;
+	case E_UNEQUAL:
+		sym_calc_value(e->left.sym);
+		sym_calc_value(e->right.sym);
+		str1 = sym_get_string_value(e->left.sym);
+		str2 = sym_get_string_value(e->right.sym);
+		return !strcmp(str1, str2) ? no : yes;
+	default:
+		printf("expr_calc_value: %d?\n", e->type);
+		return no;
+	}
+}
+
+int expr_compare_type(enum expr_type t1, enum expr_type t2)
+{
+#if 0
+	return 1;
+#else
+	if (t1 == t2)
+		return 0;
+	switch (t1) {
+	case E_EQUAL:
+	case E_UNEQUAL:
+		if (t2 == E_NOT)
+			return 1;
+	case E_NOT:
+		if (t2 == E_AND)
+			return 1;
+	case E_AND:
+		if (t2 == E_OR)
+			return 1;
+	case E_OR:
+		if (t2 == E_LIST)
+			return 1;
+	case E_LIST:
+		if (t2 == 0)
+			return 1;
+	default:
+		return -1;
+	}
+	printf("[%dgt%d?]", t1, t2);
+	return 0;
+#endif
+}
+
+static inline struct expr *
+expr_get_leftmost_symbol(const struct expr *e)
+{
+
+	if (e == NULL)
+		return NULL;
+
+	while (e->type != E_SYMBOL)
+		e = e->left.expr;
+
+	return expr_copy(e);
+}
+
+/*
+ * Given expression `e1' and `e2', returns the leaf of the longest
+ * sub-expression of `e1' not containing 'e2.
+ */
+struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2)
+{
+	struct expr *ret;
+
+	switch (e1->type) {
+	case E_OR:
+		return expr_alloc_and(
+		    expr_simplify_unmet_dep(e1->left.expr, e2),
+		    expr_simplify_unmet_dep(e1->right.expr, e2));
+	case E_AND: {
+		struct expr *e;
+		e = expr_alloc_and(expr_copy(e1), expr_copy(e2));
+		e = expr_eliminate_dups(e);
+		ret = (!expr_eq(e, e1)) ? e1 : NULL;
+		expr_free(e);
+		break;
+		}
+	default:
+		ret = e1;
+		break;
+	}
+
+	return expr_get_leftmost_symbol(ret);
+}
+
+void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken)
+{
+	if (!e) {
+		fn(data, NULL, "y");
+		return;
+	}
+
+	if (expr_compare_type(prevtoken, e->type) > 0)
+		fn(data, NULL, "(");
+	switch (e->type) {
+	case E_SYMBOL:
+		if (e->left.sym->name)
+			fn(data, e->left.sym, e->left.sym->name);
+		else
+			fn(data, NULL, "<choice>");
+		break;
+	case E_NOT:
+		fn(data, NULL, "!");
+		expr_print(e->left.expr, fn, data, E_NOT);
+		break;
+	case E_EQUAL:
+		if (e->left.sym->name)
+			fn(data, e->left.sym, e->left.sym->name);
+		else
+			fn(data, NULL, "<choice>");
+		fn(data, NULL, "=");
+		fn(data, e->right.sym, e->right.sym->name);
+		break;
+	case E_UNEQUAL:
+		if (e->left.sym->name)
+			fn(data, e->left.sym, e->left.sym->name);
+		else
+			fn(data, NULL, "<choice>");
+		fn(data, NULL, "!=");
+		fn(data, e->right.sym, e->right.sym->name);
+		break;
+	case E_OR:
+		expr_print(e->left.expr, fn, data, E_OR);
+		fn(data, NULL, " || ");
+		expr_print(e->right.expr, fn, data, E_OR);
+		break;
+	case E_AND:
+		expr_print(e->left.expr, fn, data, E_AND);
+		fn(data, NULL, " && ");
+		expr_print(e->right.expr, fn, data, E_AND);
+		break;
+	case E_LIST:
+		fn(data, e->right.sym, e->right.sym->name);
+		if (e->left.expr) {
+			fn(data, NULL, " ^ ");
+			expr_print(e->left.expr, fn, data, E_LIST);
+		}
+		break;
+	case E_RANGE:
+		fn(data, NULL, "[");
+		fn(data, e->left.sym, e->left.sym->name);
+		fn(data, NULL, " ");
+		fn(data, e->right.sym, e->right.sym->name);
+		fn(data, NULL, "]");
+		break;
+	default:
+	  {
+		char buf[32];
+		sprintf(buf, "<unknown type %d>", e->type);
+		fn(data, NULL, buf);
+		break;
+	  }
+	}
+	if (expr_compare_type(prevtoken, e->type) > 0)
+		fn(data, NULL, ")");
+}
+
+static void expr_print_file_helper(void *data, struct symbol *sym, const char *str)
+{
+	xfwrite(str, strlen(str), 1, data);
+}
+
+void expr_fprint(struct expr *e, FILE *out)
+{
+	expr_print(e, expr_print_file_helper, out, E_NONE);
+}
+
+static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str)
+{
+	struct gstr *gs = (struct gstr*)data;
+	const char *sym_str = NULL;
+
+	if (sym)
+		sym_str = sym_get_string_value(sym);
+
+	if (gs->max_width) {
+		unsigned extra_length = strlen(str);
+		const char *last_cr = strrchr(gs->s, '\n');
+		unsigned last_line_length;
+
+		if (sym_str)
+			extra_length += 4 + strlen(sym_str);
+
+		if (!last_cr)
+			last_cr = gs->s;
+
+		last_line_length = strlen(gs->s) - (last_cr - gs->s);
+
+		if ((last_line_length + extra_length) > gs->max_width)
+			str_append(gs, "\\\n");
+	}
+
+	str_append(gs, str);
+	if (sym && sym->type != S_UNKNOWN)
+		str_printf(gs, " [=%s]", sym_str);
+}
+
+void expr_gstr_print(struct expr *e, struct gstr *gs)
+{
+	expr_print(e, expr_print_gstr_helper, gs, E_NONE);
+}
diff --git a/scripts/config/expr.h b/scripts/config/expr.h
new file mode 100644
index 0000000..e824bba
--- /dev/null
+++ b/scripts/config/expr.h
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#ifndef EXPR_H
+#define EXPR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <assert.h>
+#include <stdio.h>
+#include "list.h"
+#ifndef __cplusplus
+#include <stdbool.h>
+#endif
+
+struct file {
+	struct file *next;
+	struct file *parent;
+	const char *name;
+	int lineno;
+};
+
+typedef enum tristate {
+	no, mod, yes
+} tristate;
+
+enum expr_type {
+	E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
+};
+
+union expr_data {
+	struct expr *expr;
+	struct symbol *sym;
+};
+
+struct expr {
+	enum expr_type type;
+	union expr_data left, right;
+};
+
+#define EXPR_OR(dep1, dep2)	(((dep1)>(dep2))?(dep1):(dep2))
+#define EXPR_AND(dep1, dep2)	(((dep1)<(dep2))?(dep1):(dep2))
+#define EXPR_NOT(dep)		(2-(dep))
+
+#define expr_list_for_each_sym(l, e, s) \
+	for (e = (l); e && (s = e->right.sym); e = e->left.expr)
+
+struct expr_value {
+	struct expr *expr;
+	tristate tri;
+};
+
+struct symbol_value {
+	void *val;
+	tristate tri;
+};
+
+enum symbol_type {
+	S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
+};
+
+/* enum values are used as index to symbol.def[] */
+enum {
+	S_DEF_USER,		/* main user value */
+	S_DEF_AUTO,		/* values read from auto.conf */
+	S_DEF_DEF3,		/* Reserved for UI usage */
+	S_DEF_DEF4,		/* Reserved for UI usage */
+	S_DEF_COUNT
+};
+
+struct symbol {
+	struct symbol *next;
+	char *name;
+	enum symbol_type type;
+	struct symbol_value curr;
+	struct symbol_value def[S_DEF_COUNT];
+	tristate visible;
+	int flags;
+	struct property *prop;
+	struct expr_value dir_dep;
+	struct expr_value rev_dep;
+};
+
+#define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
+
+#define SYMBOL_CONST      0x0001  /* symbol is const */
+#define SYMBOL_CHECK      0x0008  /* used during dependency checking */
+#define SYMBOL_CHOICE     0x0010  /* start of a choice block (null name) */
+#define SYMBOL_CHOICEVAL  0x0020  /* used as a value in a choice block */
+#define SYMBOL_VALID      0x0080  /* set when symbol.curr is calculated */
+#define SYMBOL_OPTIONAL   0x0100  /* choice is optional - values can be 'n' */
+#define SYMBOL_WRITE      0x0200  /* write symbol to file (KCONFIG_CONFIG) */
+#define SYMBOL_CHANGED    0x0400  /* ? */
+#define SYMBOL_AUTO       0x1000  /* value from environment variable */
+#define SYMBOL_CHECKED    0x2000  /* used during dependency checking */
+#define SYMBOL_WARNED     0x8000  /* warning has been issued */
+
+/* Set when symbol.def[] is used */
+#define SYMBOL_DEF        0x10000  /* First bit of SYMBOL_DEF */
+#define SYMBOL_DEF_USER   0x10000  /* symbol.def[S_DEF_USER] is valid */
+#define SYMBOL_DEF_AUTO   0x20000  /* symbol.def[S_DEF_AUTO] is valid */
+#define SYMBOL_DEF3       0x40000  /* symbol.def[S_DEF_3] is valid */
+#define SYMBOL_DEF4       0x80000  /* symbol.def[S_DEF_4] is valid */
+
+/* choice values need to be set before calculating this symbol value */
+#define SYMBOL_NEED_SET_CHOICE_VALUES  0x100000
+
+/* Set symbol to y if allnoconfig; used for symbols that hide others */
+#define SYMBOL_ALLNOCONFIG_Y 0x200000
+
+#define SYMBOL_MAXLENGTH	256
+#define SYMBOL_HASHSIZE		9973
+
+/* A property represent the config options that can be associated
+ * with a config "symbol".
+ * Sample:
+ * config FOO
+ *         default y
+ *         prompt "foo prompt"
+ *         select BAR
+ * config BAZ
+ *         int "BAZ Value"
+ *         range 1..255
+ */
+enum prop_type {
+	P_UNKNOWN,
+	P_PROMPT,   /* prompt "foo prompt" or "BAZ Value" */
+	P_COMMENT,  /* text associated with a comment */
+	P_MENU,     /* prompt associated with a menuconfig option */
+	P_DEFAULT,  /* default y */
+	P_CHOICE,   /* choice value */
+	P_SELECT,   /* select BAR */
+	P_RANGE,    /* range 7..100 (for a symbol) */
+	P_ENV,      /* value from environment variable */
+	P_SYMBOL,   /* where a symbol is defined */
+	P_RESET,	/* reset to defaults condition */
+};
+
+struct property {
+	struct property *next;     /* next property - null if last */
+	struct symbol *sym;        /* the symbol for which the property is associated */
+	enum prop_type type;       /* type of property */
+	const char *text;          /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */
+	struct expr_value visible;
+	struct expr *expr;         /* the optional conditional part of the property */
+	struct menu *menu;         /* the menu the property are associated with
+	                            * valid for: P_SELECT, P_RANGE, P_CHOICE,
+	                            * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */
+	struct file *file;         /* what file was this property defined */
+	int lineno;                /* what lineno was this property defined */
+};
+
+#define for_all_properties(sym, st, tok) \
+	for (st = sym->prop; st; st = st->next) \
+		if (st->type == (tok))
+#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
+#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
+#define for_all_prompts(sym, st) \
+	for (st = sym->prop; st; st = st->next) \
+		if (st->text)
+
+struct menu {
+	struct menu *next;
+	struct menu *parent;
+	struct menu *list;
+	struct symbol *sym;
+	struct property *prompt;
+	struct expr *visibility;
+	struct expr *dep;
+	unsigned int flags;
+	char *help;
+	struct file *file;
+	int lineno;
+	void *data;
+};
+
+#define MENU_CHANGED		0x0001
+#define MENU_ROOT		0x0002
+
+struct jump_key {
+	struct list_head entries;
+	size_t offset;
+	struct menu *target;
+	int index;
+};
+
+#define JUMP_NB			9
+
+extern struct file *file_list;
+extern struct file *current_file;
+struct file *lookup_file(const char *name);
+
+extern struct symbol symbol_yes, symbol_no, symbol_mod;
+extern struct symbol *modules_sym;
+extern struct symbol *sym_defconfig_list;
+extern int cdebug;
+struct expr *expr_alloc_symbol(struct symbol *sym);
+struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
+struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
+struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
+struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
+struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
+struct expr *expr_copy(const struct expr *org);
+void expr_free(struct expr *e);
+int expr_eq(struct expr *e1, struct expr *e2);
+void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
+tristate expr_calc_value(struct expr *e);
+struct expr *expr_eliminate_yn(struct expr *e);
+struct expr *expr_trans_bool(struct expr *e);
+struct expr *expr_eliminate_dups(struct expr *e);
+struct expr *expr_transform(struct expr *e);
+int expr_contains_symbol(struct expr *dep, struct symbol *sym);
+bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
+struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
+struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
+void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
+struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
+struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
+
+void expr_fprint(struct expr *e, FILE *out);
+struct gstr; /* forward */
+void expr_gstr_print(struct expr *e, struct gstr *gs);
+
+static inline int expr_is_yes(struct expr *e)
+{
+	return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
+}
+
+static inline int expr_is_no(struct expr *e)
+{
+	return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* EXPR_H */
diff --git a/scripts/config/list.h b/scripts/config/list.h
new file mode 100644
index 0000000..2cf23f0
--- /dev/null
+++ b/scripts/config/list.h
@@ -0,0 +1,131 @@
+#ifndef LIST_H
+#define LIST_H
+
+/*
+ * Copied from include/linux/...
+ */
+
+#undef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr:        the pointer to the member.
+ * @type:       the type of the container struct this is embedded in.
+ * @member:     the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({                      \
+	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
+
+struct list_head {
+	struct list_head *next, *prev;
+};
+
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+	struct list_head name = LIST_HEAD_INIT(name)
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr:	the &struct list_head pointer.
+ * @type:	the type of the struct this is embedded in.
+ * @member:	the name of the list_head within the struct.
+ */
+#define list_entry(ptr, type, member) \
+	container_of(ptr, type, member)
+
+/**
+ * list_for_each_entry	-	iterate over list of given type
+ * @pos:	the type * to use as a loop cursor.
+ * @head:	the head for your list.
+ * @member:	the name of the list_head within the struct.
+ */
+#define list_for_each_entry(pos, head, member)				\
+	for (pos = list_entry((head)->next, typeof(*pos), member);	\
+	     &pos->member != (head); 	\
+	     pos = list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
+ * @pos:	the type * to use as a loop cursor.
+ * @n:		another type * to use as temporary storage
+ * @head:	the head for your list.
+ * @member:	the name of the list_head within the struct.
+ */
+#define list_for_each_entry_safe(pos, n, head, member)			\
+	for (pos = list_entry((head)->next, typeof(*pos), member),	\
+		n = list_entry(pos->member.next, typeof(*pos), member);	\
+	     &pos->member != (head);					\
+	     pos = n, n = list_entry(n->member.next, typeof(*n), member))
+
+/**
+ * list_empty - tests whether a list is empty
+ * @head: the list to test.
+ */
+static inline int list_empty(const struct list_head *head)
+{
+	return head->next == head;
+}
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_add(struct list_head *_new,
+			      struct list_head *prev,
+			      struct list_head *next)
+{
+	next->prev = _new;
+	_new->next = next;
+	_new->prev = prev;
+	prev->next = _new;
+}
+
+/**
+ * list_add_tail - add a new entry
+ * @new: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ */
+static inline void list_add_tail(struct list_head *_new, struct list_head *head)
+{
+	__list_add(_new, head->prev, head);
+}
+
+/*
+ * Delete a list entry by making the prev/next entries
+ * point to each other.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_del(struct list_head *prev, struct list_head *next)
+{
+	next->prev = prev;
+	prev->next = next;
+}
+
+#define LIST_POISON1  ((void *) 0x00100100)
+#define LIST_POISON2  ((void *) 0x00200200)
+/**
+ * list_del - deletes entry from list.
+ * @entry: the element to delete from the list.
+ * Note: list_empty() on entry does not return true after this, the entry is
+ * in an undefined state.
+ */
+static inline void list_del(struct list_head *entry)
+{
+	__list_del(entry->prev, entry->next);
+	entry->next = (struct list_head*)LIST_POISON1;
+	entry->prev = (struct list_head*)LIST_POISON2;
+}
+#endif
diff --git a/scripts/config/lkc.h b/scripts/config/lkc.h
new file mode 100644
index 0000000..d5daa7a
--- /dev/null
+++ b/scripts/config/lkc.h
@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#ifndef LKC_H
+#define LKC_H
+
+#include "expr.h"
+
+#ifndef KBUILD_NO_NLS
+# include <libintl.h>
+#else
+static inline const char *gettext(const char *txt) { return txt; }
+static inline void textdomain(const char *domainname) {}
+static inline void bindtextdomain(const char *name, const char *dir) {}
+static inline char *bind_textdomain_codeset(const char *dn, char *c) { return c; }
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define P(name,type,arg)	extern type name arg
+#include "lkc_proto.h"
+#undef P
+
+#define SRCTREE "srctree"
+
+#ifndef PACKAGE
+#define PACKAGE "linux"
+#endif
+
+#define LOCALEDIR "/usr/share/locale"
+
+#define _(text) gettext(text)
+#define N_(text) (text)
+
+#ifndef CONFIG_
+#define CONFIG_ "CONFIG_"
+#endif
+static inline const char *CONFIG_prefix(void)
+{
+	return getenv( "CONFIG_" ) ?: CONFIG_;
+}
+#undef CONFIG_
+#define CONFIG_ CONFIG_prefix()
+
+#define TF_COMMAND	0x0001
+#define TF_PARAM	0x0002
+#define TF_OPTION	0x0004
+
+enum conf_def_mode {
+	def_default,
+	def_yes,
+	def_mod,
+	def_no,
+	def_random
+};
+
+#define T_OPT_MODULES		1
+#define T_OPT_DEFCONFIG_LIST	2
+#define T_OPT_ENV		3
+#define T_OPT_ALLNOCONFIG_Y	4
+
+struct kconf_id {
+	int name;
+	int token;
+	unsigned int flags;
+	enum symbol_type stype;
+};
+
+extern int zconfdebug;
+
+int zconfparse(void);
+void zconfdump(FILE *out);
+void zconf_starthelp(void);
+FILE *zconf_fopen(const char *name);
+void zconf_initscan(const char *name);
+void zconf_nextfile(const char *name);
+int zconf_lineno(void);
+const char *zconf_curname(void);
+
+/* confdata.c */
+const char *conf_get_configname(void);
+const char *conf_get_autoconfig_name(void);
+char *conf_get_default_confname(void);
+void sym_set_change_count(int count);
+void sym_add_change_count(int count);
+bool conf_set_all_new_symbols(enum conf_def_mode mode);
+void set_all_choice_values(struct symbol *csym);
+
+struct conf_printer {
+	void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
+	void (*print_comment)(FILE *, const char *, void *);
+};
+
+/* confdata.c and expr.c */
+static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
+{
+	assert(len != 0);
+
+	if (fwrite(str, len, count, out) != count)
+		fprintf(stderr, "Error in writing or end of file.\n");
+}
+
+/* menu.c */
+void _menu_init(void);
+void menu_warn(struct menu *menu, const char *fmt, ...);
+struct menu *menu_add_menu(void);
+void menu_end_menu(void);
+void menu_add_entry(struct symbol *sym);
+void menu_end_entry(void);
+void menu_add_dep(struct expr *dep);
+void menu_add_visibility(struct expr *dep);
+struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep);
+struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
+void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
+void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
+void menu_add_option(int token, char *arg);
+void menu_finalize(struct menu *parent);
+void menu_set_type(int type);
+
+/* util.c */
+struct file *file_lookup(const char *name);
+int file_write_dep(const char *name);
+void *xmalloc(size_t size);
+void *xcalloc(size_t nmemb, size_t size);
+
+struct gstr {
+	size_t len;
+	char  *s;
+	/*
+	* when max_width is not zero long lines in string s (if any) get
+	* wrapped not to exceed the max_width value
+	*/
+	int max_width;
+};
+struct gstr str_new(void);
+struct gstr str_assign(const char *s);
+void str_free(struct gstr *gs);
+void str_append(struct gstr *gs, const char *s);
+void str_printf(struct gstr *gs, const char *fmt, ...);
+const char *str_get(struct gstr *gs);
+
+/* symbol.c */
+extern struct expr *sym_env_list;
+
+void sym_init(void);
+void sym_clear_all_valid(void);
+void sym_set_all_changed(void);
+void sym_set_changed(struct symbol *sym);
+struct symbol *sym_choice_default(struct symbol *sym);
+const char *sym_get_string_default(struct symbol *sym);
+struct symbol *sym_check_deps(struct symbol *sym);
+struct property *prop_alloc(enum prop_type type, struct symbol *sym);
+struct symbol *prop_get_symbol(struct property *prop);
+struct property *sym_get_env_prop(struct symbol *sym);
+
+static inline tristate sym_get_tristate_value(struct symbol *sym)
+{
+	return sym->curr.tri;
+}
+
+
+static inline struct symbol *sym_get_choice_value(struct symbol *sym)
+{
+	return (struct symbol *)sym->curr.val;
+}
+
+static inline bool sym_set_choice_value(struct symbol *ch, struct symbol *chval)
+{
+	return sym_set_tristate_value(chval, yes);
+}
+
+static inline bool sym_is_choice(struct symbol *sym)
+{
+	return sym->flags & SYMBOL_CHOICE ? true : false;
+}
+
+static inline bool sym_is_choice_value(struct symbol *sym)
+{
+	return sym->flags & SYMBOL_CHOICEVAL ? true : false;
+}
+
+static inline bool sym_is_optional(struct symbol *sym)
+{
+	return sym->flags & SYMBOL_OPTIONAL ? true : false;
+}
+
+static inline bool sym_has_value(struct symbol *sym)
+{
+	return sym->flags & SYMBOL_DEF_USER ? true : false;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LKC_H */
diff --git a/scripts/config/lkc_proto.h b/scripts/config/lkc_proto.h
new file mode 100644
index 0000000..adad313
--- /dev/null
+++ b/scripts/config/lkc_proto.h
@@ -0,0 +1,58 @@
+#include <stdarg.h>
+
+/* confdata.c */
+P(conf_parse,void,(const char *name));
+P(conf_read,int,(const char *name));
+P(conf_read_simple,int,(const char *name, int));
+P(conf_reset,void,(int));
+P(conf_write_defconfig,int,(const char *name));
+P(conf_write,int,(const char *name));
+P(conf_write_autoconf,int,(void));
+P(conf_get_changed,bool,(void));
+P(conf_set_changed_callback, void,(void (*fn)(void)));
+P(conf_set_message_callback, void,(void (*fn)(const char *fmt, va_list ap)));
+
+/* menu.c */
+P(rootmenu,struct menu,);
+
+P(menu_is_empty, bool, (struct menu *menu));
+P(menu_is_visible, bool, (struct menu *menu));
+P(menu_has_prompt, bool, (struct menu *menu));
+P(menu_get_prompt,const char *,(struct menu *menu));
+P(menu_get_root_menu,struct menu *,(struct menu *menu));
+P(menu_get_parent_menu,struct menu *,(struct menu *menu));
+P(menu_has_help,bool,(struct menu *menu));
+P(menu_get_help,const char *,(struct menu *menu));
+P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head
+			 *head));
+P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
+				   *head));
+P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
+
+/* symbol.c */
+P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
+
+P(sym_lookup,struct symbol *,(const char *name, int flags));
+P(sym_find,struct symbol *,(const char *name));
+P(sym_expand_string_value,const char *,(const char *in));
+P(sym_escape_string_value, const char *,(const char *in));
+P(sym_re_search,struct symbol **,(const char *pattern));
+P(sym_type_name,const char *,(enum symbol_type type));
+P(sym_calc_value,void,(struct symbol *sym));
+P(sym_get_type,enum symbol_type,(struct symbol *sym));
+P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
+P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
+P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
+P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
+P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
+P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
+P(sym_is_changable,bool,(struct symbol *sym));
+P(sym_get_choice_prop,struct property *,(struct symbol *sym));
+P(sym_get_default_prop,struct property *,(struct symbol *sym));
+P(sym_get_string_value,const char *,(struct symbol *sym));
+
+P(prop_get_type_name,const char *,(enum prop_type type));
+
+/* expr.c */
+P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
+P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));
diff --git a/scripts/config/lxdialog/.gitignore b/scripts/config/lxdialog/.gitignore
new file mode 100644
index 0000000..405824d
--- /dev/null
+++ b/scripts/config/lxdialog/.gitignore
@@ -0,0 +1,2 @@
+lxdialog
+*.o
diff --git a/scripts/config/lxdialog/check-lxdialog.sh b/scripts/config/lxdialog/check-lxdialog.sh
new file mode 100644
index 0000000..5075ebf
--- /dev/null
+++ b/scripts/config/lxdialog/check-lxdialog.sh
@@ -0,0 +1,91 @@
+#!/bin/sh
+# Check ncurses compatibility
+
+# What library to link
+ldflags()
+{
+	pkg-config --libs ncursesw 2>/dev/null && exit
+	pkg-config --libs ncurses 2>/dev/null && exit
+	for ext in so a dll.a dylib ; do
+		for lib in ncursesw ncurses curses ; do
+			$cc -print-file-name=lib${lib}.${ext} | grep -q /
+			if [ $? -eq 0 ]; then
+				echo "-l${lib}"
+				exit
+			fi
+		done
+	done
+	exit 1
+}
+
+# Where is ncurses.h?
+ccflags()
+{
+	if pkg-config --cflags ncursesw 2>/dev/null; then
+		echo '-DCURSES_LOC="<ncurses.h>" -DNCURSES_WIDECHAR=1'
+	elif pkg-config --cflags ncurses 2>/dev/null; then
+		echo '-DCURSES_LOC="<ncurses.h>"'
+	elif [ -f /usr/include/ncursesw/curses.h ]; then
+		echo '-I/usr/include/ncursesw -DCURSES_LOC="<curses.h>"'
+		echo ' -DNCURSES_WIDECHAR=1'
+	elif [ -f /usr/include/ncurses/ncurses.h ]; then
+		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
+	elif [ -f /usr/include/ncurses/curses.h ]; then
+		echo '-I/usr/include/ncurses -DCURSES_LOC="<curses.h>"'
+	elif [ -f /usr/include/ncurses.h ]; then
+		echo '-DCURSES_LOC="<ncurses.h>"'
+	else
+		echo '-DCURSES_LOC="<curses.h>"'
+	fi
+}
+
+# Temp file, try to clean up after us
+tmp=.lxdialog.tmp
+trap "rm -f $tmp" 0 1 2 3 15
+
+# Check if we can link to ncurses
+check() {
+        $cc -x c - -o $tmp 2>/dev/null <<'EOF'
+#include CURSES_LOC
+main() {}
+EOF
+	if [ $? != 0 ]; then
+	    echo " *** Unable to find the ncurses libraries or the"       1>&2
+	    echo " *** required header files."                            1>&2
+	    echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
+	    echo " *** "                                                  1>&2
+	    echo " *** Install ncurses (ncurses-devel) and try again."    1>&2
+	    echo " *** "                                                  1>&2
+	    exit 1
+	fi
+}
+
+usage() {
+	printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"
+}
+
+if [ $# -eq 0 ]; then
+	usage
+	exit 1
+fi
+
+cc=""
+case "$1" in
+	"-check")
+		shift
+		cc="$@"
+		check
+		;;
+	"-ccflags")
+		ccflags
+		;;
+	"-ldflags")
+		shift
+		cc="$@"
+		ldflags
+		;;
+	"*")
+		usage
+		exit 1
+		;;
+esac
diff --git a/scripts/config/lxdialog/checklist.c b/scripts/config/lxdialog/checklist.c
new file mode 100644
index 0000000..8d016fa
--- /dev/null
+++ b/scripts/config/lxdialog/checklist.c
@@ -0,0 +1,332 @@
+/*
+ *  checklist.c -- implements the checklist box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *     Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
+ *     Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+static int list_width, check_x, item_x;
+
+/*
+ * Print list item
+ */
+static void print_item(WINDOW * win, int choice, int selected)
+{
+	int i;
+	char *list_item = malloc(list_width + 1);
+
+	strncpy(list_item, item_str(), list_width - item_x);
+	list_item[list_width - item_x] = '\0';
+
+	/* Clear 'residue' of last item */
+	wattrset(win, dlg.menubox.atr);
+	wmove(win, choice, 0);
+	for (i = 0; i < list_width; i++)
+		waddch(win, ' ');
+
+	wmove(win, choice, check_x);
+	wattrset(win, selected ? dlg.check_selected.atr
+		 : dlg.check.atr);
+	if (!item_is_tag(':'))
+		wprintw(win, "(%c)", item_is_tag('X') ? 'X' : ' ');
+
+	wattrset(win, selected ? dlg.tag_selected.atr : dlg.tag.atr);
+	mvwaddch(win, choice, item_x, list_item[0]);
+	wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr);
+	waddstr(win, list_item + 1);
+	if (selected) {
+		wmove(win, choice, check_x + 1);
+		wrefresh(win);
+	}
+	free(list_item);
+}
+
+/*
+ * Print the scroll indicators.
+ */
+static void print_arrows(WINDOW * win, int choice, int item_no, int scroll,
+	     int y, int x, int height)
+{
+	wmove(win, y, x);
+
+	if (scroll > 0) {
+		wattrset(win, dlg.uarrow.atr);
+		waddch(win, ACS_UARROW);
+		waddstr(win, "(-)");
+	} else {
+		wattrset(win, dlg.menubox.atr);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+	}
+
+	y = y + height + 1;
+	wmove(win, y, x);
+
+	if ((height < item_no) && (scroll + choice < item_no - 1)) {
+		wattrset(win, dlg.darrow.atr);
+		waddch(win, ACS_DARROW);
+		waddstr(win, "(+)");
+	} else {
+		wattrset(win, dlg.menubox_border.atr);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+	}
+}
+
+/*
+ *  Display the termination buttons
+ */
+static void print_buttons(WINDOW * dialog, int height, int width, int selected)
+{
+	int x = width / 2 - 11;
+	int y = height - 2;
+
+	print_button(dialog, gettext("Select"), y, x, selected == 0);
+	print_button(dialog, gettext(" Help "), y, x + 14, selected == 1);
+
+	wmove(dialog, y, x + 1 + 14 * selected);
+	wrefresh(dialog);
+}
+
+/*
+ * Display a dialog box with a list of options that can be turned on or off
+ * in the style of radiolist (only one option turned on at a time).
+ */
+int dialog_checklist(const char *title, const char *prompt, int height,
+		     int width, int list_height)
+{
+	int i, x, y, box_x, box_y;
+	int key = 0, button = 0, choice = 0, scroll = 0, max_choice;
+	WINDOW *dialog, *list;
+
+	/* which item to highlight */
+	item_foreach() {
+		if (item_is_tag('X'))
+			choice = item_n();
+		if (item_is_selected()) {
+			choice = item_n();
+			break;
+		}
+	}
+
+do_resize:
+	if (getmaxy(stdscr) < (height + CHECKLIST_HEIGTH_MIN))
+		return -ERRDISPLAYTOOSMALL;
+	if (getmaxx(stdscr) < (width + CHECKLIST_WIDTH_MIN))
+		return -ERRDISPLAYTOOSMALL;
+
+	max_choice = MIN(list_height, item_count());
+
+	/* center dialog box on screen */
+	x = (getmaxx(stdscr) - width) / 2;
+	y = (getmaxy(stdscr) - height) / 2;
+
+	draw_shadow(stdscr, y, x, height, width);
+
+	dialog = newwin(height, width, y, x);
+	keypad(dialog, TRUE);
+
+	draw_box(dialog, 0, 0, height, width,
+		 dlg.dialog.atr, dlg.border.atr);
+	wattrset(dialog, dlg.border.atr);
+	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+	for (i = 0; i < width - 2; i++)
+		waddch(dialog, ACS_HLINE);
+	wattrset(dialog, dlg.dialog.atr);
+	waddch(dialog, ACS_RTEE);
+
+	print_title(dialog, title, width);
+
+	wattrset(dialog, dlg.dialog.atr);
+	print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+	list_width = width - 6;
+	box_y = height - list_height - 5;
+	box_x = (width - list_width) / 2 - 1;
+
+	/* create new window for the list */
+	list = subwin(dialog, list_height, list_width, y + box_y + 1,
+		      x + box_x + 1);
+
+	keypad(list, TRUE);
+
+	/* draw a box around the list items */
+	draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2,
+		 dlg.menubox_border.atr, dlg.menubox.atr);
+
+	/* Find length of longest item in order to center checklist */
+	check_x = 0;
+	item_foreach()
+		check_x = MAX(check_x, strlen(item_str()) + 4);
+	check_x = MIN(check_x, list_width);
+
+	check_x = (list_width - check_x) / 2;
+	item_x = check_x + 4;
+
+	if (choice >= list_height) {
+		scroll = choice - list_height + 1;
+		choice -= scroll;
+	}
+
+	/* Print the list */
+	for (i = 0; i < max_choice; i++) {
+		item_set(scroll + i);
+		print_item(list, i, i == choice);
+	}
+
+	print_arrows(dialog, choice, item_count(), scroll,
+		     box_y, box_x + check_x + 5, list_height);
+
+	print_buttons(dialog, height, width, 0);
+
+	wnoutrefresh(dialog);
+	wnoutrefresh(list);
+	doupdate();
+
+	while (key != KEY_ESC) {
+		key = wgetch(dialog);
+
+		for (i = 0; i < max_choice; i++) {
+			item_set(i + scroll);
+			if (toupper(key) == toupper(item_str()[0]))
+				break;
+		}
+
+		if (i < max_choice || key == KEY_UP || key == KEY_DOWN ||
+		    key == '+' || key == '-') {
+			if (key == KEY_UP || key == '-') {
+				if (!choice) {
+					if (!scroll)
+						continue;
+					/* Scroll list down */
+					if (list_height > 1) {
+						/* De-highlight current first item */
+						item_set(scroll);
+						print_item(list, 0, FALSE);
+						scrollok(list, TRUE);
+						wscrl(list, -1);
+						scrollok(list, FALSE);
+					}
+					scroll--;
+					item_set(scroll);
+					print_item(list, 0, TRUE);
+					print_arrows(dialog, choice, item_count(),
+						     scroll, box_y, box_x + check_x + 5, list_height);
+
+					wnoutrefresh(dialog);
+					wrefresh(list);
+
+					continue;	/* wait for another key press */
+				} else
+					i = choice - 1;
+			} else if (key == KEY_DOWN || key == '+') {
+				if (choice == max_choice - 1) {
+					if (scroll + choice >= item_count() - 1)
+						continue;
+					/* Scroll list up */
+					if (list_height > 1) {
+						/* De-highlight current last item before scrolling up */
+						item_set(scroll + max_choice - 1);
+						print_item(list,
+							    max_choice - 1,
+							    FALSE);
+						scrollok(list, TRUE);
+						wscrl(list, 1);
+						scrollok(list, FALSE);
+					}
+					scroll++;
+					item_set(scroll + max_choice - 1);
+					print_item(list, max_choice - 1, TRUE);
+
+					print_arrows(dialog, choice, item_count(),
+						     scroll, box_y, box_x + check_x + 5, list_height);
+
+					wnoutrefresh(dialog);
+					wrefresh(list);
+
+					continue;	/* wait for another key press */
+				} else
+					i = choice + 1;
+			}
+			if (i != choice) {
+				/* De-highlight current item */
+				item_set(scroll + choice);
+				print_item(list, choice, FALSE);
+				/* Highlight new item */
+				choice = i;
+				item_set(scroll + choice);
+				print_item(list, choice, TRUE);
+				wnoutrefresh(dialog);
+				wrefresh(list);
+			}
+			continue;	/* wait for another key press */
+		}
+		switch (key) {
+		case 'H':
+		case 'h':
+		case '?':
+			button = 1;
+			/* fall-through */
+		case 'S':
+		case 's':
+		case ' ':
+		case '\n':
+			item_foreach()
+				item_set_selected(0);
+			item_set(scroll + choice);
+			item_set_selected(1);
+			delwin(list);
+			delwin(dialog);
+			return button;
+		case TAB:
+		case KEY_LEFT:
+		case KEY_RIGHT:
+			button = ((key == KEY_LEFT ? --button : ++button) < 0)
+			    ? 1 : (button > 1 ? 0 : button);
+
+			print_buttons(dialog, height, width, button);
+			wrefresh(dialog);
+			break;
+		case 'X':
+		case 'x':
+			key = KEY_ESC;
+			break;
+		case KEY_ESC:
+			key = on_key_esc(dialog);
+			break;
+		case KEY_RESIZE:
+			delwin(list);
+			delwin(dialog);
+			on_key_resize();
+			goto do_resize;
+		}
+
+		/* Now, update everything... */
+		doupdate();
+	}
+	delwin(list);
+	delwin(dialog);
+	return key;		/* ESC pressed */
+}
diff --git a/scripts/config/lxdialog/dialog.h b/scripts/config/lxdialog/dialog.h
new file mode 100644
index 0000000..fcffd5b
--- /dev/null
+++ b/scripts/config/lxdialog/dialog.h
@@ -0,0 +1,257 @@
+/*
+ *  dialog.h -- common declarations for all dialog modules
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#ifndef KBUILD_NO_NLS
+# include <libintl.h>
+#else
+# define gettext(Msgid) ((const char *) (Msgid))
+#endif
+
+#ifdef __sun__
+#define CURS_MACROS
+#endif
+#include CURSES_LOC
+
+/*
+ * Colors in ncurses 1.9.9e do not work properly since foreground and
+ * background colors are OR'd rather than separately masked.  This version
+ * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible
+ * with standard curses.  The simplest fix (to make this work with standard
+ * curses) uses the wbkgdset() function, not used in the original hack.
+ * Turn it off if we're building with 1.9.9e, since it just confuses things.
+ */
+#if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE)
+#define OLD_NCURSES 1
+#undef  wbkgdset
+#define wbkgdset(w,p)		/*nothing */
+#else
+#define OLD_NCURSES 0
+#endif
+
+#define TR(params) _tracef params
+
+#define KEY_ESC 27
+#define TAB 9
+#define MAX_LEN 2048
+#define BUF_SIZE (10*1024)
+#define MIN(x,y) (x < y ? x : y)
+#define MAX(x,y) (x > y ? x : y)
+
+#ifndef ACS_ULCORNER
+#define ACS_ULCORNER '+'
+#endif
+#ifndef ACS_LLCORNER
+#define ACS_LLCORNER '+'
+#endif
+#ifndef ACS_URCORNER
+#define ACS_URCORNER '+'
+#endif
+#ifndef ACS_LRCORNER
+#define ACS_LRCORNER '+'
+#endif
+#ifndef ACS_HLINE
+#define ACS_HLINE '-'
+#endif
+#ifndef ACS_VLINE
+#define ACS_VLINE '|'
+#endif
+#ifndef ACS_LTEE
+#define ACS_LTEE '+'
+#endif
+#ifndef ACS_RTEE
+#define ACS_RTEE '+'
+#endif
+#ifndef ACS_UARROW
+#define ACS_UARROW '^'
+#endif
+#ifndef ACS_DARROW
+#define ACS_DARROW 'v'
+#endif
+
+/* error return codes */
+#define ERRDISPLAYTOOSMALL (KEY_MAX + 1)
+
+/*
+ *   Color definitions
+ */
+struct dialog_color {
+	chtype atr;	/* Color attribute */
+	int fg;		/* foreground */
+	int bg;		/* background */
+	int hl;		/* highlight this item */
+};
+
+struct subtitle_list {
+	struct subtitle_list *next;
+	const char *text;
+};
+
+struct dialog_info {
+	const char *backtitle;
+	struct subtitle_list *subtitles;
+	struct dialog_color screen;
+	struct dialog_color shadow;
+	struct dialog_color dialog;
+	struct dialog_color title;
+	struct dialog_color border;
+	struct dialog_color button_active;
+	struct dialog_color button_inactive;
+	struct dialog_color button_key_active;
+	struct dialog_color button_key_inactive;
+	struct dialog_color button_label_active;
+	struct dialog_color button_label_inactive;
+	struct dialog_color inputbox;
+	struct dialog_color inputbox_border;
+	struct dialog_color searchbox;
+	struct dialog_color searchbox_title;
+	struct dialog_color searchbox_border;
+	struct dialog_color position_indicator;
+	struct dialog_color menubox;
+	struct dialog_color menubox_border;
+	struct dialog_color item;
+	struct dialog_color item_selected;
+	struct dialog_color tag;
+	struct dialog_color tag_selected;
+	struct dialog_color tag_key;
+	struct dialog_color tag_key_selected;
+	struct dialog_color check;
+	struct dialog_color check_selected;
+	struct dialog_color uarrow;
+	struct dialog_color darrow;
+};
+
+/*
+ * Global variables
+ */
+extern struct dialog_info dlg;
+extern char dialog_input_result[];
+extern int saved_x, saved_y;		/* Needed in signal handler in mconf.c */
+
+/*
+ * Function prototypes
+ */
+
+/* item list as used by checklist and menubox */
+void item_reset(void);
+void item_make(const char *fmt, ...);
+void item_add_str(const char *fmt, ...);
+void item_set_tag(char tag);
+void item_set_data(void *p);
+void item_set_selected(int val);
+int item_activate_selected(void);
+void *item_data(void);
+char item_tag(void);
+
+/* item list manipulation for lxdialog use */
+#define MAXITEMSTR 200
+struct dialog_item {
+	char str[MAXITEMSTR];	/* prompt displayed */
+	char tag;
+	void *data;	/* pointer to menu item - used by menubox+checklist */
+	int selected;	/* Set to 1 by dialog_*() function if selected. */
+};
+
+/* list of lialog_items */
+struct dialog_list {
+	struct dialog_item node;
+	struct dialog_list *next;
+};
+
+extern struct dialog_list *item_cur;
+extern struct dialog_list item_nil;
+extern struct dialog_list *item_head;
+
+int item_count(void);
+void item_set(int n);
+int item_n(void);
+const char *item_str(void);
+int item_is_selected(void);
+int item_is_tag(char tag);
+#define item_foreach() \
+	for (item_cur = item_head ? item_head: item_cur; \
+	     item_cur && (item_cur != &item_nil); item_cur = item_cur->next)
+
+/* generic key handlers */
+int on_key_esc(WINDOW *win);
+int on_key_resize(void);
+
+/* minimum (re)size values */
+#define CHECKLIST_HEIGTH_MIN 6	/* For dialog_checklist() */
+#define CHECKLIST_WIDTH_MIN 6
+#define INPUTBOX_HEIGTH_MIN 2	/* For dialog_inputbox() */
+#define INPUTBOX_WIDTH_MIN 2
+#define MENUBOX_HEIGTH_MIN 15	/* For dialog_menu() */
+#define MENUBOX_WIDTH_MIN 65
+#define TEXTBOX_HEIGTH_MIN 8	/* For dialog_textbox() */
+#define TEXTBOX_WIDTH_MIN 8
+#define YESNO_HEIGTH_MIN 4	/* For dialog_yesno() */
+#define YESNO_WIDTH_MIN 4
+#define WINDOW_HEIGTH_MIN 19	/* For init_dialog() */
+#define WINDOW_WIDTH_MIN 80
+
+int init_dialog(const char *backtitle);
+void set_dialog_backtitle(const char *backtitle);
+void set_dialog_subtitles(struct subtitle_list *subtitles);
+void end_dialog(int x, int y);
+void attr_clear(WINDOW * win, int height, int width, chtype attr);
+void dialog_clear(void);
+void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x);
+void print_button(WINDOW * win, const char *label, int y, int x, int selected);
+void print_title(WINDOW *dialog, const char *title, int width);
+void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box,
+	      chtype border);
+void draw_shadow(WINDOW * win, int y, int x, int height, int width);
+
+int first_alpha(const char *string, const char *exempt);
+int dialog_yesno(const char *title, const char *prompt, int height, int width);
+int dialog_msgbox(const char *title, const char *prompt, int height,
+		  int width, int pause);
+
+
+typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void
+			       *_data);
+int dialog_textbox(const char *title, char *tbuf, int initial_height,
+		   int initial_width, int *keys, int *_vscroll, int *_hscroll,
+		   update_text_fn update_text, void *data);
+int dialog_menu(const char *title, const char *prompt,
+		const void *selected, int *s_scroll);
+int dialog_checklist(const char *title, const char *prompt, int height,
+		     int width, int list_height);
+int dialog_inputbox(const char *title, const char *prompt, int height,
+		    int width, const char *init);
+
+/*
+ * This is the base for fictitious keys, which activate
+ * the buttons.
+ *
+ * Mouse-generated keys are the following:
+ *   -- the first 32 are used as numbers, in addition to '0'-'9'
+ *   -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
+ *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
+ */
+#define M_EVENT (KEY_MAX+1)
diff --git a/scripts/config/lxdialog/inputbox.c b/scripts/config/lxdialog/inputbox.c
new file mode 100644
index 0000000..d58de1d
--- /dev/null
+++ b/scripts/config/lxdialog/inputbox.c
@@ -0,0 +1,301 @@
+/*
+ *  inputbox.c -- implements the input box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+char dialog_input_result[MAX_LEN + 1];
+
+/*
+ *  Print the termination buttons
+ */
+static void print_buttons(WINDOW * dialog, int height, int width, int selected)
+{
+	int x = width / 2 - 11;
+	int y = height - 2;
+
+	print_button(dialog, gettext("  Ok  "), y, x, selected == 0);
+	print_button(dialog, gettext(" Help "), y, x + 14, selected == 1);
+
+	wmove(dialog, y, x + 1 + 14 * selected);
+	wrefresh(dialog);
+}
+
+/*
+ * Display a dialog box for inputing a string
+ */
+int dialog_inputbox(const char *title, const char *prompt, int height, int width,
+		    const char *init)
+{
+	int i, x, y, box_y, box_x, box_width;
+	int input_x = 0, key = 0, button = -1;
+	int show_x, len, pos;
+	char *instr = dialog_input_result;
+	WINDOW *dialog;
+
+	if (!init)
+		instr[0] = '\0';
+	else
+		strcpy(instr, init);
+
+do_resize:
+	if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGTH_MIN))
+		return -ERRDISPLAYTOOSMALL;
+	if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN))
+		return -ERRDISPLAYTOOSMALL;
+
+	/* center dialog box on screen */
+	x = (getmaxx(stdscr) - width) / 2;
+	y = (getmaxy(stdscr) - height) / 2;
+
+	draw_shadow(stdscr, y, x, height, width);
+
+	dialog = newwin(height, width, y, x);
+	keypad(dialog, TRUE);
+
+	draw_box(dialog, 0, 0, height, width,
+		 dlg.dialog.atr, dlg.border.atr);
+	wattrset(dialog, dlg.border.atr);
+	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+	for (i = 0; i < width - 2; i++)
+		waddch(dialog, ACS_HLINE);
+	wattrset(dialog, dlg.dialog.atr);
+	waddch(dialog, ACS_RTEE);
+
+	print_title(dialog, title, width);
+
+	wattrset(dialog, dlg.dialog.atr);
+	print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+	/* Draw the input field box */
+	box_width = width - 6;
+	getyx(dialog, y, x);
+	box_y = y + 2;
+	box_x = (width - box_width) / 2;
+	draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
+		 dlg.dialog.atr, dlg.border.atr);
+
+	print_buttons(dialog, height, width, 0);
+
+	/* Set up the initial value */
+	wmove(dialog, box_y, box_x);
+	wattrset(dialog, dlg.inputbox.atr);
+
+	len = strlen(instr);
+	pos = len;
+
+	if (len >= box_width) {
+		show_x = len - box_width + 1;
+		input_x = box_width - 1;
+		for (i = 0; i < box_width - 1; i++)
+			waddch(dialog, instr[show_x + i]);
+	} else {
+		show_x = 0;
+		input_x = len;
+		waddstr(dialog, instr);
+	}
+
+	wmove(dialog, box_y, box_x + input_x);
+
+	wrefresh(dialog);
+
+	while (key != KEY_ESC) {
+		key = wgetch(dialog);
+
+		if (button == -1) {	/* Input box selected */
+			switch (key) {
+			case TAB:
+			case KEY_UP:
+			case KEY_DOWN:
+				break;
+			case KEY_BACKSPACE:
+			case 127:
+				if (pos) {
+					wattrset(dialog, dlg.inputbox.atr);
+					if (input_x == 0) {
+						show_x--;
+					} else
+						input_x--;
+
+					if (pos < len) {
+						for (i = pos - 1; i < len; i++) {
+							instr[i] = instr[i+1];
+						}
+					}
+
+					pos--;
+					len--;
+					instr[len] = '\0';
+					wmove(dialog, box_y, box_x);
+					for (i = 0; i < box_width; i++) {
+						if (!instr[show_x + i]) {
+							waddch(dialog, ' ');
+							break;
+						}
+						waddch(dialog, instr[show_x + i]);
+					}
+					wmove(dialog, box_y, input_x + box_x);
+					wrefresh(dialog);
+				}
+				continue;
+			case KEY_LEFT:
+				if (pos > 0) {
+					if (input_x > 0) {
+						wmove(dialog, box_y, --input_x + box_x);
+					} else if (input_x == 0) {
+						show_x--;
+						wmove(dialog, box_y, box_x);
+						for (i = 0; i < box_width; i++) {
+							if (!instr[show_x + i]) {
+								waddch(dialog, ' ');
+								break;
+							}
+							waddch(dialog, instr[show_x + i]);
+						}
+						wmove(dialog, box_y, box_x);
+					}
+					pos--;
+				}
+				continue;
+			case KEY_RIGHT:
+				if (pos < len) {
+					if (input_x < box_width - 1) {
+						wmove(dialog, box_y, ++input_x + box_x);
+					} else if (input_x == box_width - 1) {
+						show_x++;
+						wmove(dialog, box_y, box_x);
+						for (i = 0; i < box_width; i++) {
+							if (!instr[show_x + i]) {
+								waddch(dialog, ' ');
+								break;
+							}
+							waddch(dialog, instr[show_x + i]);
+						}
+						wmove(dialog, box_y, input_x + box_x);
+					}
+					pos++;
+				}
+				continue;
+			default:
+				if (key < 0x100 && isprint(key)) {
+					if (len < MAX_LEN) {
+						wattrset(dialog, dlg.inputbox.atr);
+						if (pos < len) {
+							for (i = len; i > pos; i--)
+								instr[i] = instr[i-1];
+							instr[pos] = key;
+						} else {
+							instr[len] = key;
+						}
+						pos++;
+						len++;
+						instr[len] = '\0';
+
+						if (input_x == box_width - 1) {
+							show_x++;
+						} else {
+							input_x++;
+						}
+
+						wmove(dialog, box_y, box_x);
+						for (i = 0; i < box_width; i++) {
+							if (!instr[show_x + i]) {
+								waddch(dialog, ' ');
+								break;
+							}
+							waddch(dialog, instr[show_x + i]);
+						}
+						wmove(dialog, box_y, input_x + box_x);
+						wrefresh(dialog);
+					} else
+						flash();	/* Alarm user about overflow */
+					continue;
+				}
+			}
+		}
+		switch (key) {
+		case 'O':
+		case 'o':
+			delwin(dialog);
+			return 0;
+		case 'H':
+		case 'h':
+			delwin(dialog);
+			return 1;
+		case KEY_UP:
+		case KEY_LEFT:
+			switch (button) {
+			case -1:
+				button = 1;	/* Indicates "Help" button is selected */
+				print_buttons(dialog, height, width, 1);
+				break;
+			case 0:
+				button = -1;	/* Indicates input box is selected */
+				print_buttons(dialog, height, width, 0);
+				wmove(dialog, box_y, box_x + input_x);
+				wrefresh(dialog);
+				break;
+			case 1:
+				button = 0;	/* Indicates "OK" button is selected */
+				print_buttons(dialog, height, width, 0);
+				break;
+			}
+			break;
+		case TAB:
+		case KEY_DOWN:
+		case KEY_RIGHT:
+			switch (button) {
+			case -1:
+				button = 0;	/* Indicates "OK" button is selected */
+				print_buttons(dialog, height, width, 0);
+				break;
+			case 0:
+				button = 1;	/* Indicates "Help" button is selected */
+				print_buttons(dialog, height, width, 1);
+				break;
+			case 1:
+				button = -1;	/* Indicates input box is selected */
+				print_buttons(dialog, height, width, 0);
+				wmove(dialog, box_y, box_x + input_x);
+				wrefresh(dialog);
+				break;
+			}
+			break;
+		case ' ':
+		case '\n':
+			delwin(dialog);
+			return (button == -1 ? 0 : button);
+		case 'X':
+		case 'x':
+			key = KEY_ESC;
+			break;
+		case KEY_ESC:
+			key = on_key_esc(dialog);
+			break;
+		case KEY_RESIZE:
+			delwin(dialog);
+			on_key_resize();
+			goto do_resize;
+		}
+	}
+
+	delwin(dialog);
+	return KEY_ESC;		/* ESC pressed */
+}
diff --git a/scripts/config/lxdialog/menubox.c b/scripts/config/lxdialog/menubox.c
new file mode 100644
index 0000000..11ae9ad
--- /dev/null
+++ b/scripts/config/lxdialog/menubox.c
@@ -0,0 +1,437 @@
+/*
+ *  menubox.c -- implements the menu box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ *  Changes by Clifford Wolf (god@clifford.at)
+ *
+ *  [ 1998-06-13 ]
+ *
+ *    *)  A bugfix for the Page-Down problem
+ *
+ *    *)  Formerly when I used Page Down and Page Up, the cursor would be set
+ *        to the first position in the menu box.  Now lxdialog is a bit
+ *        smarter and works more like other menu systems (just have a look at
+ *        it).
+ *
+ *    *)  Formerly if I selected something my scrolling would be broken because
+ *        lxdialog is re-invoked by the Menuconfig shell script, can't
+ *        remember the last scrolling position, and just sets it so that the
+ *        cursor is at the bottom of the box.  Now it writes the temporary file
+ *        lxdialog.scrltmp which contains this information. The file is
+ *        deleted by lxdialog if the user leaves a submenu or enters a new
+ *        one, but it would be nice if Menuconfig could make another "rm -f"
+ *        just to be sure.  Just try it out - you will recognise a difference!
+ *
+ *  [ 1998-06-14 ]
+ *
+ *    *)  Now lxdialog is crash-safe against broken "lxdialog.scrltmp" files
+ *        and menus change their size on the fly.
+ *
+ *    *)  If for some reason the last scrolling position is not saved by
+ *        lxdialog, it sets the scrolling so that the selected item is in the
+ *        middle of the menu box, not at the bottom.
+ *
+ * 02 January 1999, Michael Elizabeth Chastain (mec@shout.net)
+ * Reset 'scroll' to 0 if the value from lxdialog.scrltmp is bogus.
+ * This fixes a bug in Menuconfig where using ' ' to descend into menus
+ * would leave mis-synchronized lxdialog.scrltmp files lying around,
+ * fscanf would read in 'scroll', and eventually that value would get used.
+ */
+
+#include "dialog.h"
+
+static int menu_width, item_x;
+
+/*
+ * Print menu item
+ */
+static void do_print_item(WINDOW * win, const char *item, int line_y,
+			  int selected, int hotkey)
+{
+	int j;
+	char *menu_item = malloc(menu_width + 1);
+
+	strncpy(menu_item, item, menu_width - item_x);
+	menu_item[menu_width - item_x] = '\0';
+	j = first_alpha(menu_item, "YyNnMmHh");
+
+	/* Clear 'residue' of last item */
+	wattrset(win, dlg.menubox.atr);
+	wmove(win, line_y, 0);
+#if OLD_NCURSES
+	{
+		int i;
+		for (i = 0; i < menu_width; i++)
+			waddch(win, ' ');
+	}
+#else
+	wclrtoeol(win);
+#endif
+	wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr);
+	mvwaddstr(win, line_y, item_x, menu_item);
+	if (hotkey) {
+		wattrset(win, selected ? dlg.tag_key_selected.atr
+			 : dlg.tag_key.atr);
+		mvwaddch(win, line_y, item_x + j, menu_item[j]);
+	}
+	if (selected) {
+		wmove(win, line_y, item_x + 1);
+	}
+	free(menu_item);
+	wrefresh(win);
+}
+
+#define print_item(index, choice, selected)				\
+do {									\
+	item_set(index);						\
+	do_print_item(menu, item_str(), choice, selected, !item_is_tag(':')); \
+} while (0)
+
+/*
+ * Print the scroll indicators.
+ */
+static void print_arrows(WINDOW * win, int item_no, int scroll, int y, int x,
+			 int height)
+{
+	int cur_y, cur_x;
+
+	getyx(win, cur_y, cur_x);
+
+	wmove(win, y, x);
+
+	if (scroll > 0) {
+		wattrset(win, dlg.uarrow.atr);
+		waddch(win, ACS_UARROW);
+		waddstr(win, "(-)");
+	} else {
+		wattrset(win, dlg.menubox.atr);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+	}
+
+	y = y + height + 1;
+	wmove(win, y, x);
+	wrefresh(win);
+
+	if ((height < item_no) && (scroll + height < item_no)) {
+		wattrset(win, dlg.darrow.atr);
+		waddch(win, ACS_DARROW);
+		waddstr(win, "(+)");
+	} else {
+		wattrset(win, dlg.menubox_border.atr);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+		waddch(win, ACS_HLINE);
+	}
+
+	wmove(win, cur_y, cur_x);
+	wrefresh(win);
+}
+
+/*
+ * Display the termination buttons.
+ */
+static void print_buttons(WINDOW * win, int height, int width, int selected)
+{
+	int x = width / 2 - 28;
+	int y = height - 2;
+
+	print_button(win, gettext("Select"), y, x, selected == 0);
+	print_button(win, gettext(" Exit "), y, x + 12, selected == 1);
+	print_button(win, gettext(" Help "), y, x + 24, selected == 2);
+	print_button(win, gettext(" Save "), y, x + 36, selected == 3);
+	print_button(win, gettext(" Load "), y, x + 48, selected == 4);
+
+	wmove(win, y, x + 1 + 12 * selected);
+	wrefresh(win);
+}
+
+/* scroll up n lines (n may be negative) */
+static void do_scroll(WINDOW *win, int *scroll, int n)
+{
+	/* Scroll menu up */
+	scrollok(win, TRUE);
+	wscrl(win, n);
+	scrollok(win, FALSE);
+	*scroll = *scroll + n;
+	wrefresh(win);
+}
+
+/*
+ * Display a menu for choosing among a number of options
+ */
+int dialog_menu(const char *title, const char *prompt,
+		const void *selected, int *s_scroll)
+{
+	int i, j, x, y, box_x, box_y;
+	int height, width, menu_height;
+	int key = 0, button = 0, scroll = 0, choice = 0;
+	int first_item =  0, max_choice;
+	WINDOW *dialog, *menu;
+
+do_resize:
+	height = getmaxy(stdscr);
+	width = getmaxx(stdscr);
+	if (height < MENUBOX_HEIGTH_MIN || width < MENUBOX_WIDTH_MIN)
+		return -ERRDISPLAYTOOSMALL;
+
+	height -= 4;
+	width  -= 5;
+	menu_height = height - 10;
+
+	max_choice = MIN(menu_height, item_count());
+
+	/* center dialog box on screen */
+	x = (getmaxx(stdscr) - width) / 2;
+	y = (getmaxy(stdscr) - height) / 2;
+
+	draw_shadow(stdscr, y, x, height, width);
+
+	dialog = newwin(height, width, y, x);
+	keypad(dialog, TRUE);
+
+	draw_box(dialog, 0, 0, height, width,
+		 dlg.dialog.atr, dlg.border.atr);
+	wattrset(dialog, dlg.border.atr);
+	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+	for (i = 0; i < width - 2; i++)
+		waddch(dialog, ACS_HLINE);
+	wattrset(dialog, dlg.dialog.atr);
+	wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
+	waddch(dialog, ACS_RTEE);
+
+	print_title(dialog, title, width);
+
+	wattrset(dialog, dlg.dialog.atr);
+	print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+	menu_width = width - 6;
+	box_y = height - menu_height - 5;
+	box_x = (width - menu_width) / 2 - 1;
+
+	/* create new window for the menu */
+	menu = subwin(dialog, menu_height, menu_width,
+		      y + box_y + 1, x + box_x + 1);
+	keypad(menu, TRUE);
+
+	/* draw a box around the menu items */
+	draw_box(dialog, box_y, box_x, menu_height + 2, menu_width + 2,
+		 dlg.menubox_border.atr, dlg.menubox.atr);
+
+	if (menu_width >= 80)
+		item_x = (menu_width - 70) / 2;
+	else
+		item_x = 4;
+
+	/* Set choice to default item */
+	item_foreach()
+		if (selected && (selected == item_data()))
+			choice = item_n();
+	/* get the saved scroll info */
+	scroll = *s_scroll;
+	if ((scroll <= choice) && (scroll + max_choice > choice) &&
+	   (scroll >= 0) && (scroll + max_choice <= item_count())) {
+		first_item = scroll;
+		choice = choice - scroll;
+	} else {
+		scroll = 0;
+	}
+	if ((choice >= max_choice)) {
+		if (choice >= item_count() - max_choice / 2)
+			scroll = first_item = item_count() - max_choice;
+		else
+			scroll = first_item = choice - max_choice / 2;
+		choice = choice - scroll;
+	}
+
+	/* Print the menu */
+	for (i = 0; i < max_choice; i++) {
+		print_item(first_item + i, i, i == choice);
+	}
+
+	wnoutrefresh(menu);
+
+	print_arrows(dialog, item_count(), scroll,
+		     box_y, box_x + item_x + 1, menu_height);
+
+	print_buttons(dialog, height, width, 0);
+	wmove(menu, choice, item_x + 1);
+	wrefresh(menu);
+
+	while (key != KEY_ESC) {
+		key = wgetch(menu);
+
+		if (key < 256 && isalpha(key))
+			key = tolower(key);
+
+		if (strchr("ynmh", key))
+			i = max_choice;
+		else {
+			for (i = choice + 1; i < max_choice; i++) {
+				item_set(scroll + i);
+				j = first_alpha(item_str(), "YyNnMmHh");
+				if (key == tolower(item_str()[j]))
+					break;
+			}
+			if (i == max_choice)
+				for (i = 0; i < max_choice; i++) {
+					item_set(scroll + i);
+					j = first_alpha(item_str(), "YyNnMmHh");
+					if (key == tolower(item_str()[j]))
+						break;
+				}
+		}
+
+		if (item_count() != 0 &&
+		    (i < max_choice ||
+		     key == KEY_UP || key == KEY_DOWN ||
+		     key == '-' || key == '+' ||
+		     key == KEY_PPAGE || key == KEY_NPAGE)) {
+			/* Remove highligt of current item */
+			print_item(scroll + choice, choice, FALSE);
+
+			if (key == KEY_UP || key == '-') {
+				if (choice < 2 && scroll) {
+					/* Scroll menu down */
+					do_scroll(menu, &scroll, -1);
+
+					print_item(scroll, 0, FALSE);
+				} else
+					choice = MAX(choice - 1, 0);
+
+			} else if (key == KEY_DOWN || key == '+') {
+				print_item(scroll+choice, choice, FALSE);
+
+				if ((choice > max_choice - 3) &&
+				    (scroll + max_choice < item_count())) {
+					/* Scroll menu up */
+					do_scroll(menu, &scroll, 1);
+
+					print_item(scroll+max_choice - 1,
+						   max_choice - 1, FALSE);
+				} else
+					choice = MIN(choice + 1, max_choice - 1);
+
+			} else if (key == KEY_PPAGE) {
+				scrollok(menu, TRUE);
+				for (i = 0; (i < max_choice); i++) {
+					if (scroll > 0) {
+						do_scroll(menu, &scroll, -1);
+						print_item(scroll, 0, FALSE);
+					} else {
+						if (choice > 0)
+							choice--;
+					}
+				}
+
+			} else if (key == KEY_NPAGE) {
+				for (i = 0; (i < max_choice); i++) {
+					if (scroll + max_choice < item_count()) {
+						do_scroll(menu, &scroll, 1);
+						print_item(scroll+max_choice-1,
+							   max_choice - 1, FALSE);
+					} else {
+						if (choice + 1 < max_choice)
+							choice++;
+					}
+				}
+			} else
+				choice = i;
+
+			print_item(scroll + choice, choice, TRUE);
+
+			print_arrows(dialog, item_count(), scroll,
+				     box_y, box_x + item_x + 1, menu_height);
+
+			wnoutrefresh(dialog);
+			wrefresh(menu);
+
+			continue;	/* wait for another key press */
+		}
+
+		switch (key) {
+		case KEY_LEFT:
+		case TAB:
+		case KEY_RIGHT:
+			button = ((key == KEY_LEFT ? --button : ++button) < 0)
+			    ? 4 : (button > 4 ? 0 : button);
+
+			print_buttons(dialog, height, width, button);
+			wrefresh(menu);
+			break;
+		case ' ':
+		case 's':
+		case 'y':
+		case 'n':
+		case 'm':
+		case '/':
+		case 'h':
+		case '?':
+		case 'z':
+		case '\n':
+			/* save scroll info */
+			*s_scroll = scroll;
+			delwin(menu);
+			delwin(dialog);
+			item_set(scroll + choice);
+			item_set_selected(1);
+			switch (key) {
+			case 'h':
+			case '?':
+				return 2;
+			case 's':
+			case 'y':
+				return 5;
+			case 'n':
+				return 6;
+			case 'm':
+				return 7;
+			case ' ':
+				return 8;
+			case '/':
+				return 9;
+			case 'z':
+				return 10;
+			case '\n':
+				return button;
+			}
+			return 0;
+		case 'e':
+		case 'x':
+			key = KEY_ESC;
+			break;
+		case KEY_ESC:
+			key = on_key_esc(menu);
+			break;
+		case KEY_RESIZE:
+			on_key_resize();
+			delwin(menu);
+			delwin(dialog);
+			goto do_resize;
+		}
+	}
+	delwin(menu);
+	delwin(dialog);
+	return key;		/* ESC pressed */
+}
diff --git a/scripts/config/lxdialog/textbox.c b/scripts/config/lxdialog/textbox.c
new file mode 100644
index 0000000..1773319
--- /dev/null
+++ b/scripts/config/lxdialog/textbox.c
@@ -0,0 +1,408 @@
+/*
+ *  textbox.c -- implements the text box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+static void back_lines(int n);
+static void print_page(WINDOW *win, int height, int width, update_text_fn
+		       update_text, void *data);
+static void print_line(WINDOW *win, int row, int width);
+static char *get_line(void);
+static void print_position(WINDOW * win);
+
+static int hscroll;
+static int begin_reached, end_reached, page_length;
+static char *buf;
+static char *page;
+
+/*
+ * refresh window content
+ */
+static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
+			     int cur_y, int cur_x, update_text_fn update_text,
+			     void *data)
+{
+	print_page(box, boxh, boxw, update_text, data);
+	print_position(dialog);
+	wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
+	wrefresh(dialog);
+}
+
+
+/*
+ * Display text from a file in a dialog box.
+ *
+ * keys is a null-terminated array
+ * update_text() may not add or remove any '\n' or '\0' in tbuf
+ */
+int dialog_textbox(const char *title, char *tbuf, int initial_height,
+		   int initial_width, int *keys, int *_vscroll, int *_hscroll,
+		   update_text_fn update_text, void *data)
+{
+	int i, x, y, cur_x, cur_y, key = 0;
+	int height, width, boxh, boxw;
+	WINDOW *dialog, *box;
+	bool done = false;
+
+	begin_reached = 1;
+	end_reached = 0;
+	page_length = 0;
+	hscroll = 0;
+	buf = tbuf;
+	page = buf;	/* page is pointer to start of page to be displayed */
+
+	if (_vscroll && *_vscroll) {
+		begin_reached = 0;
+
+		for (i = 0; i < *_vscroll; i++)
+			get_line();
+	}
+	if (_hscroll)
+		hscroll = *_hscroll;
+
+do_resize:
+	getmaxyx(stdscr, height, width);
+	if (height < TEXTBOX_HEIGTH_MIN || width < TEXTBOX_WIDTH_MIN)
+		return -ERRDISPLAYTOOSMALL;
+	if (initial_height != 0)
+		height = initial_height;
+	else
+		if (height > 4)
+			height -= 4;
+		else
+			height = 0;
+	if (initial_width != 0)
+		width = initial_width;
+	else
+		if (width > 5)
+			width -= 5;
+		else
+			width = 0;
+
+	/* center dialog box on screen */
+	x = (getmaxx(stdscr) - width) / 2;
+	y = (getmaxy(stdscr) - height) / 2;
+
+	draw_shadow(stdscr, y, x, height, width);
+
+	dialog = newwin(height, width, y, x);
+	keypad(dialog, TRUE);
+
+	/* Create window for box region, used for scrolling text */
+	boxh = height - 4;
+	boxw = width - 2;
+	box = subwin(dialog, boxh, boxw, y + 1, x + 1);
+	wattrset(box, dlg.dialog.atr);
+	wbkgdset(box, dlg.dialog.atr & A_COLOR);
+
+	keypad(box, TRUE);
+
+	/* register the new window, along with its borders */
+	draw_box(dialog, 0, 0, height, width,
+		 dlg.dialog.atr, dlg.border.atr);
+
+	wattrset(dialog, dlg.border.atr);
+	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+	for (i = 0; i < width - 2; i++)
+		waddch(dialog, ACS_HLINE);
+	wattrset(dialog, dlg.dialog.atr);
+	wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
+	waddch(dialog, ACS_RTEE);
+
+	print_title(dialog, title, width);
+
+	print_button(dialog, gettext(" Exit "), height - 2, width / 2 - 4, TRUE);
+	wnoutrefresh(dialog);
+	getyx(dialog, cur_y, cur_x);	/* Save cursor position */
+
+	/* Print first page of text */
+	attr_clear(box, boxh, boxw, dlg.dialog.atr);
+	refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x, update_text,
+			 data);
+
+	while (!done) {
+		key = wgetch(dialog);
+		switch (key) {
+		case 'E':	/* Exit */
+		case 'e':
+		case 'X':
+		case 'x':
+		case 'q':
+		case '\n':
+			done = true;
+			break;
+		case 'g':	/* First page */
+		case KEY_HOME:
+			if (!begin_reached) {
+				begin_reached = 1;
+				page = buf;
+				refresh_text_box(dialog, box, boxh, boxw,
+						 cur_y, cur_x, update_text,
+						 data);
+			}
+			break;
+		case 'G':	/* Last page */
+		case KEY_END:
+
+			end_reached = 1;
+			/* point to last char in buf */
+			page = buf + strlen(buf);
+			back_lines(boxh);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case 'K':	/* Previous line */
+		case 'k':
+		case KEY_UP:
+			if (begin_reached)
+				break;
+
+			back_lines(page_length + 1);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case 'B':	/* Previous page */
+		case 'b':
+		case 'u':
+		case KEY_PPAGE:
+			if (begin_reached)
+				break;
+			back_lines(page_length + boxh);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case 'J':	/* Next line */
+		case 'j':
+		case KEY_DOWN:
+			if (end_reached)
+				break;
+
+			back_lines(page_length - 1);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case KEY_NPAGE:	/* Next page */
+		case ' ':
+		case 'd':
+			if (end_reached)
+				break;
+
+			begin_reached = 0;
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case '0':	/* Beginning of line */
+		case 'H':	/* Scroll left */
+		case 'h':
+		case KEY_LEFT:
+			if (hscroll <= 0)
+				break;
+
+			if (key == '0')
+				hscroll = 0;
+			else
+				hscroll--;
+			/* Reprint current page to scroll horizontally */
+			back_lines(page_length);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case 'L':	/* Scroll right */
+		case 'l':
+		case KEY_RIGHT:
+			if (hscroll >= MAX_LEN)
+				break;
+			hscroll++;
+			/* Reprint current page to scroll horizontally */
+			back_lines(page_length);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
+			break;
+		case KEY_ESC:
+			if (on_key_esc(dialog) == KEY_ESC)
+				done = true;
+			break;
+		case KEY_RESIZE:
+			back_lines(height);
+			delwin(box);
+			delwin(dialog);
+			on_key_resize();
+			goto do_resize;
+		default:
+			for (i = 0; keys[i]; i++) {
+				if (key == keys[i]) {
+					done = true;
+					break;
+				}
+			}
+		}
+	}
+	delwin(box);
+	delwin(dialog);
+	if (_vscroll) {
+		const char *s;
+
+		s = buf;
+		*_vscroll = 0;
+		back_lines(page_length);
+		while (s < page && (s = strchr(s, '\n'))) {
+			(*_vscroll)++;
+			s++;
+		}
+	}
+	if (_hscroll)
+		*_hscroll = hscroll;
+	return key;
+}
+
+/*
+ * Go back 'n' lines in text. Called by dialog_textbox().
+ * 'page' will be updated to point to the desired line in 'buf'.
+ */
+static void back_lines(int n)
+{
+	int i;
+
+	begin_reached = 0;
+	/* Go back 'n' lines */
+	for (i = 0; i < n; i++) {
+		if (*page == '\0') {
+			if (end_reached) {
+				end_reached = 0;
+				continue;
+			}
+		}
+		if (page == buf) {
+			begin_reached = 1;
+			return;
+		}
+		page--;
+		do {
+			if (page == buf) {
+				begin_reached = 1;
+				return;
+			}
+			page--;
+		} while (*page != '\n');
+		page++;
+	}
+}
+
+/*
+ * Print a new page of text.
+ */
+static void print_page(WINDOW *win, int height, int width, update_text_fn
+		       update_text, void *data)
+{
+	int i, passed_end = 0;
+
+	if (update_text) {
+		char *end;
+
+		for (i = 0; i < height; i++)
+			get_line();
+		end = page;
+		back_lines(height);
+		update_text(buf, page - buf, end - buf, data);
+	}
+
+	page_length = 0;
+	for (i = 0; i < height; i++) {
+		print_line(win, i, width);
+		if (!passed_end)
+			page_length++;
+		if (end_reached && !passed_end)
+			passed_end = 1;
+	}
+	wnoutrefresh(win);
+}
+
+/*
+ * Print a new line of text.
+ */
+static void print_line(WINDOW * win, int row, int width)
+{
+	char *line;
+
+	line = get_line();
+	line += MIN(strlen(line), hscroll);	/* Scroll horizontally */
+	wmove(win, row, 0);	/* move cursor to correct line */
+	waddch(win, ' ');
+	waddnstr(win, line, MIN(strlen(line), width - 2));
+
+	/* Clear 'residue' of previous line */
+#if OLD_NCURSES
+	{
+		int x = getcurx(win);
+		int i;
+		for (i = 0; i < width - x; i++)
+			waddch(win, ' ');
+	}
+#else
+	wclrtoeol(win);
+#endif
+}
+
+/*
+ * Return current line of text. Called by dialog_textbox() and print_line().
+ * 'page' should point to start of current line before calling, and will be
+ * updated to point to start of next line.
+ */
+static char *get_line(void)
+{
+	int i = 0;
+	static char line[MAX_LEN + 1];
+
+	end_reached = 0;
+	while (*page != '\n') {
+		if (*page == '\0') {
+			end_reached = 1;
+			break;
+		} else if (i < MAX_LEN)
+			line[i++] = *(page++);
+		else {
+			/* Truncate lines longer than MAX_LEN characters */
+			if (i == MAX_LEN)
+				line[i++] = '\0';
+			page++;
+		}
+	}
+	if (i <= MAX_LEN)
+		line[i] = '\0';
+	if (!end_reached)
+		page++;		/* move past '\n' */
+
+	return line;
+}
+
+/*
+ * Print current position
+ */
+static void print_position(WINDOW * win)
+{
+	int percent;
+
+	wattrset(win, dlg.position_indicator.atr);
+	wbkgdset(win, dlg.position_indicator.atr & A_COLOR);
+	percent = (page - buf) * 100 / strlen(buf);
+	wmove(win, getmaxy(win) - 3, getmaxx(win) - 9);
+	wprintw(win, "(%3d%%)", percent);
+}
diff --git a/scripts/config/lxdialog/util.c b/scripts/config/lxdialog/util.c
new file mode 100644
index 0000000..f7abdeb
--- /dev/null
+++ b/scripts/config/lxdialog/util.c
@@ -0,0 +1,713 @@
+/*
+ *  util.c
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdarg.h>
+
+#include "dialog.h"
+
+/* Needed in signal handler in mconf.c */
+int saved_x, saved_y;
+
+struct dialog_info dlg;
+
+static void set_mono_theme(void)
+{
+	dlg.screen.atr = A_NORMAL;
+	dlg.shadow.atr = A_NORMAL;
+	dlg.dialog.atr = A_NORMAL;
+	dlg.title.atr = A_BOLD;
+	dlg.border.atr = A_NORMAL;
+	dlg.button_active.atr = A_REVERSE;
+	dlg.button_inactive.atr = A_DIM;
+	dlg.button_key_active.atr = A_REVERSE;
+	dlg.button_key_inactive.atr = A_BOLD;
+	dlg.button_label_active.atr = A_REVERSE;
+	dlg.button_label_inactive.atr = A_NORMAL;
+	dlg.inputbox.atr = A_NORMAL;
+	dlg.inputbox_border.atr = A_NORMAL;
+	dlg.searchbox.atr = A_NORMAL;
+	dlg.searchbox_title.atr = A_BOLD;
+	dlg.searchbox_border.atr = A_NORMAL;
+	dlg.position_indicator.atr = A_BOLD;
+	dlg.menubox.atr = A_NORMAL;
+	dlg.menubox_border.atr = A_NORMAL;
+	dlg.item.atr = A_NORMAL;
+	dlg.item_selected.atr = A_REVERSE;
+	dlg.tag.atr = A_BOLD;
+	dlg.tag_selected.atr = A_REVERSE;
+	dlg.tag_key.atr = A_BOLD;
+	dlg.tag_key_selected.atr = A_REVERSE;
+	dlg.check.atr = A_BOLD;
+	dlg.check_selected.atr = A_REVERSE;
+	dlg.uarrow.atr = A_BOLD;
+	dlg.darrow.atr = A_BOLD;
+}
+
+#define DLG_COLOR(dialog, f, b, h) \
+do {                               \
+	dlg.dialog.fg = (f);       \
+	dlg.dialog.bg = (b);       \
+	dlg.dialog.hl = (h);       \
+} while (0)
+
+static void set_classic_theme(void)
+{
+	DLG_COLOR(screen,                COLOR_CYAN,   COLOR_BLUE,   true);
+	DLG_COLOR(shadow,                COLOR_BLACK,  COLOR_BLACK,  true);
+	DLG_COLOR(dialog,                COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(title,                 COLOR_YELLOW, COLOR_WHITE,  true);
+	DLG_COLOR(border,                COLOR_WHITE,  COLOR_WHITE,  true);
+	DLG_COLOR(button_active,         COLOR_WHITE,  COLOR_BLUE,   true);
+	DLG_COLOR(button_inactive,       COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(button_key_active,     COLOR_WHITE,  COLOR_BLUE,   true);
+	DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_WHITE,  false);
+	DLG_COLOR(button_label_active,   COLOR_YELLOW, COLOR_BLUE,   true);
+	DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_WHITE,  true);
+	DLG_COLOR(inputbox,              COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(inputbox_border,       COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(searchbox,             COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(searchbox_title,       COLOR_YELLOW, COLOR_WHITE,  true);
+	DLG_COLOR(searchbox_border,      COLOR_WHITE,  COLOR_WHITE,  true);
+	DLG_COLOR(position_indicator,    COLOR_YELLOW, COLOR_WHITE,  true);
+	DLG_COLOR(menubox,               COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(menubox_border,        COLOR_WHITE,  COLOR_WHITE,  true);
+	DLG_COLOR(item,                  COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(item_selected,         COLOR_WHITE,  COLOR_BLUE,   true);
+	DLG_COLOR(tag,                   COLOR_YELLOW, COLOR_WHITE,  true);
+	DLG_COLOR(tag_selected,          COLOR_YELLOW, COLOR_BLUE,   true);
+	DLG_COLOR(tag_key,               COLOR_YELLOW, COLOR_WHITE,  true);
+	DLG_COLOR(tag_key_selected,      COLOR_YELLOW, COLOR_BLUE,   true);
+	DLG_COLOR(check,                 COLOR_BLACK,  COLOR_WHITE,  false);
+	DLG_COLOR(check_selected,        COLOR_WHITE,  COLOR_BLUE,   true);
+	DLG_COLOR(uarrow,                COLOR_GREEN,  COLOR_WHITE,  true);
+	DLG_COLOR(darrow,                COLOR_GREEN,  COLOR_WHITE,  true);
+}
+
+static void set_blackbg_theme(void)
+{
+	DLG_COLOR(screen, COLOR_RED,   COLOR_BLACK, true);
+	DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
+	DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
+	DLG_COLOR(title,  COLOR_RED,   COLOR_BLACK, false);
+	DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);
+
+	DLG_COLOR(button_active,         COLOR_YELLOW, COLOR_RED,   false);
+	DLG_COLOR(button_inactive,       COLOR_YELLOW, COLOR_BLACK, false);
+	DLG_COLOR(button_key_active,     COLOR_YELLOW, COLOR_RED,   true);
+	DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_BLACK, false);
+	DLG_COLOR(button_label_active,   COLOR_WHITE,  COLOR_RED,   false);
+	DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_BLACK, true);
+
+	DLG_COLOR(inputbox,         COLOR_YELLOW, COLOR_BLACK, false);
+	DLG_COLOR(inputbox_border,  COLOR_YELLOW, COLOR_BLACK, false);
+
+	DLG_COLOR(searchbox,        COLOR_YELLOW, COLOR_BLACK, false);
+	DLG_COLOR(searchbox_title,  COLOR_YELLOW, COLOR_BLACK, true);
+	DLG_COLOR(searchbox_border, COLOR_BLACK,  COLOR_BLACK, true);
+
+	DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK,  false);
+
+	DLG_COLOR(menubox,          COLOR_YELLOW, COLOR_BLACK, false);
+	DLG_COLOR(menubox_border,   COLOR_BLACK,  COLOR_BLACK, true);
+
+	DLG_COLOR(item,             COLOR_WHITE, COLOR_BLACK, false);
+	DLG_COLOR(item_selected,    COLOR_WHITE, COLOR_RED,   false);
+
+	DLG_COLOR(tag,              COLOR_RED,    COLOR_BLACK, false);
+	DLG_COLOR(tag_selected,     COLOR_YELLOW, COLOR_RED,   true);
+	DLG_COLOR(tag_key,          COLOR_RED,    COLOR_BLACK, false);
+	DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED,   true);
+
+	DLG_COLOR(check,            COLOR_YELLOW, COLOR_BLACK, false);
+	DLG_COLOR(check_selected,   COLOR_YELLOW, COLOR_RED,   true);
+
+	DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
+	DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
+}
+
+static void set_bluetitle_theme(void)
+{
+	set_classic_theme();
+	DLG_COLOR(title,               COLOR_BLUE,   COLOR_WHITE, true);
+	DLG_COLOR(button_key_active,   COLOR_YELLOW, COLOR_BLUE,  true);
+	DLG_COLOR(button_label_active, COLOR_WHITE,  COLOR_BLUE,  true);
+	DLG_COLOR(searchbox_title,     COLOR_BLUE,   COLOR_WHITE, true);
+	DLG_COLOR(position_indicator,  COLOR_BLUE,   COLOR_WHITE, true);
+	DLG_COLOR(tag,                 COLOR_BLUE,   COLOR_WHITE, true);
+	DLG_COLOR(tag_key,             COLOR_BLUE,   COLOR_WHITE, true);
+
+}
+
+/*
+ * Select color theme
+ */
+static int set_theme(const char *theme)
+{
+	int use_color = 1;
+	if (!theme)
+		set_bluetitle_theme();
+	else if (strcmp(theme, "classic") == 0)
+		set_classic_theme();
+	else if (strcmp(theme, "bluetitle") == 0)
+		set_bluetitle_theme();
+	else if (strcmp(theme, "blackbg") == 0)
+		set_blackbg_theme();
+	else if (strcmp(theme, "mono") == 0)
+		use_color = 0;
+
+	return use_color;
+}
+
+static void init_one_color(struct dialog_color *color)
+{
+	static int pair = 0;
+
+	pair++;
+	init_pair(pair, color->fg, color->bg);
+	if (color->hl)
+		color->atr = A_BOLD | COLOR_PAIR(pair);
+	else
+		color->atr = COLOR_PAIR(pair);
+}
+
+static void init_dialog_colors(void)
+{
+	init_one_color(&dlg.screen);
+	init_one_color(&dlg.shadow);
+	init_one_color(&dlg.dialog);
+	init_one_color(&dlg.title);
+	init_one_color(&dlg.border);
+	init_one_color(&dlg.button_active);
+	init_one_color(&dlg.button_inactive);
+	init_one_color(&dlg.button_key_active);
+	init_one_color(&dlg.button_key_inactive);
+	init_one_color(&dlg.button_label_active);
+	init_one_color(&dlg.button_label_inactive);
+	init_one_color(&dlg.inputbox);
+	init_one_color(&dlg.inputbox_border);
+	init_one_color(&dlg.searchbox);
+	init_one_color(&dlg.searchbox_title);
+	init_one_color(&dlg.searchbox_border);
+	init_one_color(&dlg.position_indicator);
+	init_one_color(&dlg.menubox);
+	init_one_color(&dlg.menubox_border);
+	init_one_color(&dlg.item);
+	init_one_color(&dlg.item_selected);
+	init_one_color(&dlg.tag);
+	init_one_color(&dlg.tag_selected);
+	init_one_color(&dlg.tag_key);
+	init_one_color(&dlg.tag_key_selected);
+	init_one_color(&dlg.check);
+	init_one_color(&dlg.check_selected);
+	init_one_color(&dlg.uarrow);
+	init_one_color(&dlg.darrow);
+}
+
+/*
+ * Setup for color display
+ */
+static void color_setup(const char *theme)
+{
+	int use_color;
+
+	use_color = set_theme(theme);
+	if (use_color && has_colors()) {
+		start_color();
+		init_dialog_colors();
+	} else
+		set_mono_theme();
+}
+
+/*
+ * Set window to attribute 'attr'
+ */
+void attr_clear(WINDOW * win, int height, int width, chtype attr)
+{
+	int i, j;
+
+	wattrset(win, attr);
+	for (i = 0; i < height; i++) {
+		wmove(win, i, 0);
+		for (j = 0; j < width; j++)
+			waddch(win, ' ');
+	}
+	touchwin(win);
+}
+
+void dialog_clear(void)
+{
+	int lines, columns;
+
+	lines = getmaxy(stdscr);
+	columns = getmaxx(stdscr);
+
+	attr_clear(stdscr, lines, columns, dlg.screen.atr);
+	/* Display background title if it exists ... - SLH */
+	if (dlg.backtitle != NULL) {
+		int i, len = 0, skip = 0;
+		struct subtitle_list *pos;
+
+		wattrset(stdscr, dlg.screen.atr);
+		mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
+
+		for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
+			/* 3 is for the arrow and spaces */
+			len += strlen(pos->text) + 3;
+		}
+
+		wmove(stdscr, 1, 1);
+		if (len > columns - 2) {
+			const char *ellipsis = "[...] ";
+			waddstr(stdscr, ellipsis);
+			skip = len - (columns - 2 - strlen(ellipsis));
+		}
+
+		for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
+			if (skip == 0)
+				waddch(stdscr, ACS_RARROW);
+			else
+				skip--;
+
+			if (skip == 0)
+				waddch(stdscr, ' ');
+			else
+				skip--;
+
+			if (skip < strlen(pos->text)) {
+				waddstr(stdscr, pos->text + skip);
+				skip = 0;
+			} else
+				skip -= strlen(pos->text);
+
+			if (skip == 0)
+				waddch(stdscr, ' ');
+			else
+				skip--;
+		}
+
+		for (i = len + 1; i < columns - 1; i++)
+			waddch(stdscr, ACS_HLINE);
+	}
+	wnoutrefresh(stdscr);
+}
+
+/*
+ * Do some initialization for dialog
+ */
+int init_dialog(const char *backtitle)
+{
+	int height, width;
+
+	initscr();		/* Init curses */
+
+	/* Get current cursor position for signal handler in mconf.c */
+	getyx(stdscr, saved_y, saved_x);
+
+	getmaxyx(stdscr, height, width);
+	if (height < WINDOW_HEIGTH_MIN || width < WINDOW_WIDTH_MIN) {
+		endwin();
+		return -ERRDISPLAYTOOSMALL;
+	}
+
+	dlg.backtitle = backtitle;
+	color_setup(getenv("MENUCONFIG_COLOR"));
+
+	keypad(stdscr, TRUE);
+	cbreak();
+	noecho();
+	dialog_clear();
+
+	return 0;
+}
+
+void set_dialog_backtitle(const char *backtitle)
+{
+	dlg.backtitle = backtitle;
+}
+
+void set_dialog_subtitles(struct subtitle_list *subtitles)
+{
+	dlg.subtitles = subtitles;
+}
+
+/*
+ * End using dialog functions.
+ */
+void end_dialog(int x, int y)
+{
+	/* move cursor back to original position */
+	move(y, x);
+	refresh();
+	endwin();
+}
+
+/* Print the title of the dialog. Center the title and truncate
+ * tile if wider than dialog (- 2 chars).
+ **/
+void print_title(WINDOW *dialog, const char *title, int width)
+{
+	if (title) {
+		int tlen = MIN(width - 2, strlen(title));
+		wattrset(dialog, dlg.title.atr);
+		mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
+		mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
+		waddch(dialog, ' ');
+	}
+}
+
+/*
+ * Print a string of text in a window, automatically wrap around to the
+ * next line if the string is too long to fit on one line. Newline
+ * characters '\n' are propperly processed.  We start on a new line
+ * if there is no room for at least 4 nonblanks following a double-space.
+ */
+void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
+{
+	int newl, cur_x, cur_y;
+	int prompt_len, room, wlen;
+	char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0;
+
+	strcpy(tempstr, prompt);
+
+	prompt_len = strlen(tempstr);
+
+	if (prompt_len <= width - x * 2) {	/* If prompt is short */
+		wmove(win, y, (width - prompt_len) / 2);
+		waddstr(win, tempstr);
+	} else {
+		cur_x = x;
+		cur_y = y;
+		newl = 1;
+		word = tempstr;
+		while (word && *word) {
+			sp = strpbrk(word, "\n ");
+			if (sp && *sp == '\n')
+				newline_separator = sp;
+
+			if (sp)
+				*sp++ = 0;
+
+			/* Wrap to next line if either the word does not fit,
+			   or it is the first word of a new sentence, and it is
+			   short, and the next word does not fit. */
+			room = width - cur_x;
+			wlen = strlen(word);
+			if (wlen > room ||
+			    (newl && wlen < 4 && sp
+			     && wlen + 1 + strlen(sp) > room
+			     && (!(sp2 = strpbrk(sp, "\n "))
+				 || wlen + 1 + (sp2 - sp) > room))) {
+				cur_y++;
+				cur_x = x;
+			}
+			wmove(win, cur_y, cur_x);
+			waddstr(win, word);
+			getyx(win, cur_y, cur_x);
+
+			/* Move to the next line if the word separator was a newline */
+			if (newline_separator) {
+				cur_y++;
+				cur_x = x;
+				newline_separator = 0;
+			} else
+				cur_x++;
+
+			if (sp && *sp == ' ') {
+				cur_x++;	/* double space */
+				while (*++sp == ' ') ;
+				newl = 1;
+			} else
+				newl = 0;
+			word = sp;
+		}
+	}
+}
+
+/*
+ * Print a button
+ */
+void print_button(WINDOW * win, const char *label, int y, int x, int selected)
+{
+	int i, temp;
+
+	wmove(win, y, x);
+	wattrset(win, selected ? dlg.button_active.atr
+		 : dlg.button_inactive.atr);
+	waddstr(win, "<");
+	temp = strspn(label, " ");
+	label += temp;
+	wattrset(win, selected ? dlg.button_label_active.atr
+		 : dlg.button_label_inactive.atr);
+	for (i = 0; i < temp; i++)
+		waddch(win, ' ');
+	wattrset(win, selected ? dlg.button_key_active.atr
+		 : dlg.button_key_inactive.atr);
+	waddch(win, label[0]);
+	wattrset(win, selected ? dlg.button_label_active.atr
+		 : dlg.button_label_inactive.atr);
+	waddstr(win, (char *)label + 1);
+	wattrset(win, selected ? dlg.button_active.atr
+		 : dlg.button_inactive.atr);
+	waddstr(win, ">");
+	wmove(win, y, x + temp + 1);
+}
+
+/*
+ * Draw a rectangular box with line drawing characters
+ */
+void
+draw_box(WINDOW * win, int y, int x, int height, int width,
+	 chtype box, chtype border)
+{
+	int i, j;
+
+	wattrset(win, 0);
+	for (i = 0; i < height; i++) {
+		wmove(win, y + i, x);
+		for (j = 0; j < width; j++)
+			if (!i && !j)
+				waddch(win, border | ACS_ULCORNER);
+			else if (i == height - 1 && !j)
+				waddch(win, border | ACS_LLCORNER);
+			else if (!i && j == width - 1)
+				waddch(win, box | ACS_URCORNER);
+			else if (i == height - 1 && j == width - 1)
+				waddch(win, box | ACS_LRCORNER);
+			else if (!i)
+				waddch(win, border | ACS_HLINE);
+			else if (i == height - 1)
+				waddch(win, box | ACS_HLINE);
+			else if (!j)
+				waddch(win, border | ACS_VLINE);
+			else if (j == width - 1)
+				waddch(win, box | ACS_VLINE);
+			else
+				waddch(win, box | ' ');
+	}
+}
+
+/*
+ * Draw shadows along the right and bottom edge to give a more 3D look
+ * to the boxes
+ */
+void draw_shadow(WINDOW * win, int y, int x, int height, int width)
+{
+	int i;
+
+	if (has_colors()) {	/* Whether terminal supports color? */
+		wattrset(win, dlg.shadow.atr);
+		wmove(win, y + height, x + 2);
+		for (i = 0; i < width; i++)
+			waddch(win, winch(win) & A_CHARTEXT);
+		for (i = y + 1; i < y + height + 1; i++) {
+			wmove(win, i, x + width);
+			waddch(win, winch(win) & A_CHARTEXT);
+			waddch(win, winch(win) & A_CHARTEXT);
+		}
+		wnoutrefresh(win);
+	}
+}
+
+/*
+ *  Return the position of the first alphabetic character in a string.
+ */
+int first_alpha(const char *string, const char *exempt)
+{
+	int i, in_paren = 0, c;
+
+	for (i = 0; i < strlen(string); i++) {
+		c = tolower(string[i]);
+
+		if (strchr("<[(", c))
+			++in_paren;
+		if (strchr(">])", c) && in_paren > 0)
+			--in_paren;
+
+		if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
+			return i;
+	}
+
+	return 0;
+}
+
+/*
+ * ncurses uses ESC to detect escaped char sequences. This resutl in
+ * a small timeout before ESC is actually delivered to the application.
+ * lxdialog suggest <ESC> <ESC> which is correctly translated to two
+ * times esc. But then we need to ignore the second esc to avoid stepping
+ * out one menu too much. Filter away all escaped key sequences since
+ * keypad(FALSE) turn off ncurses support for escape sequences - and thats
+ * needed to make notimeout() do as expected.
+ */
+int on_key_esc(WINDOW *win)
+{
+	int key;
+	int key2;
+	int key3;
+
+	nodelay(win, TRUE);
+	keypad(win, FALSE);
+	key = wgetch(win);
+	key2 = wgetch(win);
+	do {
+		key3 = wgetch(win);
+	} while (key3 != ERR);
+	nodelay(win, FALSE);
+	keypad(win, TRUE);
+	if (key == KEY_ESC && key2 == ERR)
+		return KEY_ESC;
+	else if (key != ERR && key != KEY_ESC && key2 == ERR)
+		ungetch(key);
+
+	return -1;
+}
+
+/* redraw screen in new size */
+int on_key_resize(void)
+{
+	dialog_clear();
+	return KEY_RESIZE;
+}
+
+struct dialog_list *item_cur;
+struct dialog_list item_nil;
+struct dialog_list *item_head;
+
+void item_reset(void)
+{
+	struct dialog_list *p, *next;
+
+	for (p = item_head; p; p = next) {
+		next = p->next;
+		free(p);
+	}
+	item_head = NULL;
+	item_cur = &item_nil;
+}
+
+void item_make(const char *fmt, ...)
+{
+	va_list ap;
+	struct dialog_list *p = malloc(sizeof(*p));
+
+	if (item_head)
+		item_cur->next = p;
+	else
+		item_head = p;
+	item_cur = p;
+	memset(p, 0, sizeof(*p));
+
+	va_start(ap, fmt);
+	vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
+	va_end(ap);
+}
+
+void item_add_str(const char *fmt, ...)
+{
+	va_list ap;
+	size_t avail;
+
+	avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
+
+	va_start(ap, fmt);
+	vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
+		  avail, fmt, ap);
+	item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
+	va_end(ap);
+}
+
+void item_set_tag(char tag)
+{
+	item_cur->node.tag = tag;
+}
+void item_set_data(void *ptr)
+{
+	item_cur->node.data = ptr;
+}
+
+void item_set_selected(int val)
+{
+	item_cur->node.selected = val;
+}
+
+int item_activate_selected(void)
+{
+	item_foreach()
+		if (item_is_selected())
+			return 1;
+	return 0;
+}
+
+void *item_data(void)
+{
+	return item_cur->node.data;
+}
+
+char item_tag(void)
+{
+	return item_cur->node.tag;
+}
+
+int item_count(void)
+{
+	int n = 0;
+	struct dialog_list *p;
+
+	for (p = item_head; p; p = p->next)
+		n++;
+	return n;
+}
+
+void item_set(int n)
+{
+	int i = 0;
+	item_foreach()
+		if (i++ == n)
+			return;
+}
+
+int item_n(void)
+{
+	int n = 0;
+	struct dialog_list *p;
+
+	for (p = item_head; p; p = p->next) {
+		if (p == item_cur)
+			return n;
+		n++;
+	}
+	return 0;
+}
+
+const char *item_str(void)
+{
+	return item_cur->node.str;
+}
+
+int item_is_selected(void)
+{
+	return (item_cur->node.selected != 0);
+}
+
+int item_is_tag(char tag)
+{
+	return (item_cur->node.tag == tag);
+}
diff --git a/scripts/config/lxdialog/yesno.c b/scripts/config/lxdialog/yesno.c
new file mode 100644
index 0000000..676fb2f
--- /dev/null
+++ b/scripts/config/lxdialog/yesno.c
@@ -0,0 +1,114 @@
+/*
+ *  yesno.c -- implements the yes/no box
+ *
+ *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.h"
+
+/*
+ * Display termination buttons
+ */
+static void print_buttons(WINDOW * dialog, int height, int width, int selected)
+{
+	int x = width / 2 - 10;
+	int y = height - 2;
+
+	print_button(dialog, gettext(" Yes "), y, x, selected == 0);
+	print_button(dialog, gettext("  No  "), y, x + 13, selected == 1);
+
+	wmove(dialog, y, x + 1 + 13 * selected);
+	wrefresh(dialog);
+}
+
+/*
+ * Display a dialog box with two buttons - Yes and No
+ */
+int dialog_yesno(const char *title, const char *prompt, int height, int width)
+{
+	int i, x, y, key = 0, button = 0;
+	WINDOW *dialog;
+
+do_resize:
+	if (getmaxy(stdscr) < (height + YESNO_HEIGTH_MIN))
+		return -ERRDISPLAYTOOSMALL;
+	if (getmaxx(stdscr) < (width + YESNO_WIDTH_MIN))
+		return -ERRDISPLAYTOOSMALL;
+
+	/* center dialog box on screen */
+	x = (getmaxx(stdscr) - width) / 2;
+	y = (getmaxy(stdscr) - height) / 2;
+
+	draw_shadow(stdscr, y, x, height, width);
+
+	dialog = newwin(height, width, y, x);
+	keypad(dialog, TRUE);
+
+	draw_box(dialog, 0, 0, height, width,
+		 dlg.dialog.atr, dlg.border.atr);
+	wattrset(dialog, dlg.border.atr);
+	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+	for (i = 0; i < width - 2; i++)
+		waddch(dialog, ACS_HLINE);
+	wattrset(dialog, dlg.dialog.atr);
+	waddch(dialog, ACS_RTEE);
+
+	print_title(dialog, title, width);
+
+	wattrset(dialog, dlg.dialog.atr);
+	print_autowrap(dialog, prompt, width - 2, 1, 3);
+
+	print_buttons(dialog, height, width, 0);
+
+	while (key != KEY_ESC) {
+		key = wgetch(dialog);
+		switch (key) {
+		case 'Y':
+		case 'y':
+			delwin(dialog);
+			return 0;
+		case 'N':
+		case 'n':
+			delwin(dialog);
+			return 1;
+
+		case TAB:
+		case KEY_LEFT:
+		case KEY_RIGHT:
+			button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
+
+			print_buttons(dialog, height, width, button);
+			wrefresh(dialog);
+			break;
+		case ' ':
+		case '\n':
+			delwin(dialog);
+			return button;
+		case KEY_ESC:
+			key = on_key_esc(dialog);
+			break;
+		case KEY_RESIZE:
+			delwin(dialog);
+			on_key_resize();
+			goto do_resize;
+		}
+	}
+
+	delwin(dialog);
+	return key;		/* ESC pressed */
+}
diff --git a/scripts/config/mconf.c b/scripts/config/mconf.c
new file mode 100644
index 0000000..961c1cd
--- /dev/null
+++ b/scripts/config/mconf.c
@@ -0,0 +1,1042 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Introduced single menu mode (show all sub-menus in one large tree).
+ * 2002-11-06 Petr Baudis <pasky@ucw.cz>
+ *
+ * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#include <locale.h>
+
+#include "lkc.h"
+#include "lxdialog/dialog.h"
+
+static const char mconf_readme[] = N_(
+"Overview\n"
+"--------\n"
+"Some OpenWrt features may be built directly into the image.\n"
+"Some may be made into installable ipkg packages. Some features\n"
+"may be completely removed altogether.\n"
+"\n"
+"Menu items beginning with [*], <M> or [ ] represent features\n"
+"configured to be included, built as package or removed respectively.\n"
+"Pointed brackets <> represent packaging capable features.\n"
+"\n"
+"To change any of these features, highlight it with the cursor\n"
+"keys and press <Y> to build it in, <M> to make it a module or\n"
+"<N> to remove it.  You may also press the <Space Bar> to cycle\n"
+"through the available options (i.e. Y->N->M->Y).\n"
+"\n"
+"Some additional keyboard hints:\n"
+"\n"
+"Menus\n"
+"----------\n"
+"o  Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
+"   wish to change or the submenu you wish to select and press <Enter>.\n"
+"   Submenus are designated by \"--->\", empty ones by \"----\".\n"
+"\n"
+"   Shortcut: Press the option's highlighted letter (hotkey).\n"
+"             Pressing a hotkey more than once will sequence\n"
+"             through all visible items which use that hotkey.\n"
+"\n"
+"   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
+"   unseen options into view.\n"
+"\n"
+"o  To exit a menu use the cursor keys to highlight the <Exit> button\n"
+"   and press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
+"             using those letters.  You may press a single <ESC>, but\n"
+"             there is a delayed response which you may find annoying.\n"
+"\n"
+"   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
+"   <Exit>, <Help>, <Save>, and <Load>.\n"
+"\n"
+"o  To get help with an item, use the cursor keys to highlight <Help>\n"
+"   and press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"o  To toggle the display of hidden options, press <Z>.\n"
+"\n"
+"\n"
+"Radiolists  (Choice lists)\n"
+"-----------\n"
+"o  Use the cursor keys to select the option you wish to set and press\n"
+"   <S> or the <SPACE BAR>.\n"
+"\n"
+"   Shortcut: Press the first letter of the option you wish to set then\n"
+"             press <S> or <SPACE BAR>.\n"
+"\n"
+"o  To see available help for the item, use the cursor keys to highlight\n"
+"   <Help> and Press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"   Also, the <TAB> and cursor keys will cycle between <Select> and\n"
+"   <Help>\n"
+"\n"
+"\n"
+"Data Entry\n"
+"-----------\n"
+"o  Enter the requested information and press <ENTER>\n"
+"   If you are entering hexadecimal values, it is not necessary to\n"
+"   add the '0x' prefix to the entry.\n"
+"\n"
+"o  For help, use the <TAB> or cursor keys to highlight the help option\n"
+"   and press <ENTER>.  You can try <TAB><H> as well.\n"
+"\n"
+"\n"
+"Text Box    (Help Window)\n"
+"--------\n"
+"o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
+"   keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
+"   those who are familiar with less and lynx.\n"
+"\n"
+"o  Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
+"\n"
+"\n"
+"Alternate Configuration Files\n"
+"-----------------------------\n"
+"Menuconfig supports the use of alternate configuration files for\n"
+"those who, for various reasons, find it necessary to switch\n"
+"between different configurations.\n"
+"\n"
+"The <Save> button will let you save the current configuration to\n"
+"a file of your choosing.  Use the <Load> button to load a previously\n"
+"saved alternate configuration.\n"
+"\n"
+"Even if you don't use alternate configuration files, but you find\n"
+"during a Menuconfig session that you have completely messed up your\n"
+"settings, you may use the <Load> button to restore your previously\n"
+"saved settings from \".config\" without restarting Menuconfig.\n"
+"\n"
+"Other information\n"
+"-----------------\n"
+"If you use Menuconfig in an XTERM window, make sure you have your\n"
+"$TERM variable set to point to an xterm definition which supports\n"
+"color.  Otherwise, Menuconfig will look rather bad.  Menuconfig will\n"
+"not display correctly in an RXVT window because rxvt displays only one\n"
+"intensity of color, bright.\n"
+"\n"
+"Menuconfig will display larger menus on screens or xterms which are\n"
+"set to display more than the standard 25 row by 80 column geometry.\n"
+"In order for this to work, the \"stty size\" command must be able to\n"
+"display the screen's current row and column geometry.  I STRONGLY\n"
+"RECOMMEND that you make sure you do NOT have the shell variables\n"
+"LINES and COLUMNS exported into your environment.  Some distributions\n"
+"export those variables via /etc/profile.  Some ncurses programs can\n"
+"become confused when those variables (LINES & COLUMNS) don't reflect\n"
+"the true screen size.\n"
+"\n"
+"Optional personality available\n"
+"------------------------------\n"
+"If you prefer to have all of the options listed in a single menu,\n"
+"rather than the default multimenu hierarchy, run the menuconfig with\n"
+"MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
+"\n"
+"make MENUCONFIG_MODE=single_menu menuconfig\n"
+"\n"
+"<Enter> will then unroll the appropriate category, or enfold it if it\n"
+"is already unrolled.\n"
+"\n"
+"Note that this mode can eventually be a little more CPU expensive\n"
+"(especially with a larger number of unrolled categories) than the\n"
+"default mode.\n"
+"\n"
+"Different color themes available\n"
+"--------------------------------\n"
+"It is possible to select different color themes using the variable\n"
+"MENUCONFIG_COLOR. To select a theme use:\n"
+"\n"
+"make MENUCONFIG_COLOR=<theme> menuconfig\n"
+"\n"
+"Available themes are\n"
+" mono       => selects colors suitable for monochrome displays\n"
+" blackbg    => selects a color scheme with black background\n"
+" classic    => theme with blue background. The classic look\n"
+" bluetitle  => an LCD friendly version of classic. (default)\n"
+"\n"),
+menu_instructions[] = N_(
+	"Arrow keys navigate the menu.  "
+	"<Enter> selects submenus ---> (or empty submenus ----).  "
+	"Highlighted letters are hotkeys.  "
+	"Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
+	"Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
+	"Legend: [*] built-in  [ ] excluded  <M> module  < > module capable"),
+radiolist_instructions[] = N_(
+	"Use the arrow keys to navigate this window or "
+	"press the hotkey of the item you wish to select "
+	"followed by the <SPACE BAR>. "
+	"Press <?> for additional information about this option."),
+inputbox_instructions_int[] = N_(
+	"Please enter a decimal value. "
+	"Fractions will not be accepted.  "
+	"Use the <TAB> key to move from the input field to the buttons below it."),
+inputbox_instructions_hex[] = N_(
+	"Please enter a hexadecimal value. "
+	"Use the <TAB> key to move from the input field to the buttons below it."),
+inputbox_instructions_string[] = N_(
+	"Please enter a string value. "
+	"Use the <TAB> key to move from the input field to the buttons below it."),
+setmod_text[] = N_(
+	"This feature depends on another which has been configured as a module.\n"
+	"As a result, this feature will be built as a module."),
+load_config_text[] = N_(
+	"Enter the name of the configuration file you wish to load.  "
+	"Accept the name shown to restore the configuration you "
+	"last retrieved.  Leave blank to abort."),
+load_config_help[] = N_(
+	"\n"
+	"For various reasons, one may wish to keep several different\n"
+	"configurations available on a single machine.\n"
+	"\n"
+	"If you have saved a previous configuration in a file other than the\n"
+	"default one, entering its name here will allow you to modify that\n"
+	"configuration.\n"
+	"\n"
+	"If you are uncertain, then you have probably never used alternate\n"
+	"configuration files. You should therefore leave this blank to abort.\n"),
+save_config_text[] = N_(
+	"Enter a filename to which this configuration should be saved "
+	"as an alternate.  Leave blank to abort."),
+save_config_help[] = N_(
+	"\n"
+	"For various reasons, one may wish to keep different configurations\n"
+	"available on a single machine.\n"
+	"\n"
+	"Entering a file name here will allow you to later retrieve, modify\n"
+	"and use the current configuration as an alternate to whatever\n"
+	"configuration options you have selected at that time.\n"
+	"\n"
+	"If you are uncertain what all this means then you should probably\n"
+	"leave this blank.\n"),
+search_help[] = N_(
+	"\n"
+	"Search for symbols and display their relations.\n"
+	"Regular expressions are allowed.\n"
+	"Example: search for \"^FOO\"\n"
+	"Result:\n"
+	"-----------------------------------------------------------------\n"
+	"Symbol: FOO [=m]\n"
+	"Type  : tristate\n"
+	"Prompt: Foo bus is used to drive the bar HW\n"
+	"  Location:\n"
+	"    -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
+	"      -> PCI support (PCI [=y])\n"
+	"(1)     -> PCI access mode (<choice> [=y])\n"
+	"  Defined at drivers/pci/Kconfig:47\n"
+	"  Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
+	"  Selects: LIBCRC32\n"
+	"  Selected by: BAR [=n]\n"
+	"-----------------------------------------------------------------\n"
+	"o The line 'Type:' shows the type of the configuration option for\n"
+	"  this symbol (boolean, tristate, string, ...)\n"
+	"o The line 'Prompt:' shows the text used in the menu structure for\n"
+	"  this symbol\n"
+	"o The 'Defined at' line tells at what file / line number the symbol\n"
+	"  is defined\n"
+	"o The 'Depends on:' line tells what symbols need to be defined for\n"
+	"  this symbol to be visible in the menu (selectable)\n"
+	"o The 'Location:' lines tells where in the menu structure this symbol\n"
+	"  is located\n"
+	"    A location followed by a [=y] indicates that this is a\n"
+	"    selectable menu item - and the current value is displayed inside\n"
+	"    brackets.\n"
+	"    Press the key in the (#) prefix to jump directly to that\n"
+	"    location. You will be returned to the current search results\n"
+	"    after exiting this new menu.\n"
+	"o The 'Selects:' line tells what symbols will be automatically\n"
+	"  selected if this symbol is selected (y or m)\n"
+	"o The 'Selected by' line tells what symbol has selected this symbol\n"
+	"\n"
+	"Only relevant lines are shown.\n"
+	"\n\n"
+	"Search examples:\n"
+	"Examples: USB	=> find all symbols containing USB\n"
+	"          ^USB => find all symbols starting with USB\n"
+	"          USB$ => find all symbols ending with USB\n"
+	"\n");
+
+static int indent;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+static int show_all_options;
+static int save_and_exit;
+
+static void conf(struct menu *menu, struct menu *active_menu);
+static void conf_choice(struct menu *menu);
+static void conf_string(struct menu *menu);
+static void conf_load(void);
+static void conf_save(void);
+static int show_textbox_ext(const char *title, char *text, int r, int c,
+			    int *keys, int *vscroll, int *hscroll,
+			    update_text_fn update_text, void *data);
+static void show_textbox(const char *title, const char *text, int r, int c);
+static void show_helptext(const char *title, const char *text);
+static void show_help(struct menu *menu);
+
+static char filename[PATH_MAX+1];
+static void set_config_filename(const char *config_filename)
+{
+	static char menu_backtitle[PATH_MAX+128];
+	int size;
+
+	size = snprintf(menu_backtitle, sizeof(menu_backtitle),
+			"%s - %s", config_filename, rootmenu.prompt->text);
+	if (size >= sizeof(menu_backtitle))
+		menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
+	set_dialog_backtitle(menu_backtitle);
+
+	size = snprintf(filename, sizeof(filename), "%s", config_filename);
+	if (size >= sizeof(filename))
+		filename[sizeof(filename)-1] = '\0';
+}
+
+struct subtitle_part {
+	struct list_head entries;
+	const char *text;
+};
+static LIST_HEAD(trail);
+
+static struct subtitle_list *subtitles;
+static void set_subtitle(void)
+{
+	struct subtitle_part *sp;
+	struct subtitle_list *pos, *tmp;
+
+	for (pos = subtitles; pos != NULL; pos = tmp) {
+		tmp = pos->next;
+		free(pos);
+	}
+
+	subtitles = NULL;
+	list_for_each_entry(sp, &trail, entries) {
+		if (sp->text) {
+			if (pos) {
+				pos->next = xcalloc(1, sizeof(*pos));
+				pos = pos->next;
+			} else {
+				subtitles = pos = xcalloc(1, sizeof(*pos));
+			}
+			pos->text = sp->text;
+		}
+	}
+
+	set_dialog_subtitles(subtitles);
+}
+
+static void reset_subtitle(void)
+{
+	struct subtitle_list *pos, *tmp;
+
+	for (pos = subtitles; pos != NULL; pos = tmp) {
+		tmp = pos->next;
+		free(pos);
+	}
+	subtitles = NULL;
+	set_dialog_subtitles(subtitles);
+}
+
+struct search_data {
+	struct list_head *head;
+	struct menu **targets;
+	int *keys;
+};
+
+static void update_text(char *buf, size_t start, size_t end, void *_data)
+{
+	struct search_data *data = _data;
+	struct jump_key *pos;
+	int k = 0;
+
+	list_for_each_entry(pos, data->head, entries) {
+		if (pos->offset >= start && pos->offset < end) {
+			char header[4];
+
+			if (k < JUMP_NB) {
+				int key = '0' + (pos->index % JUMP_NB) + 1;
+
+				sprintf(header, "(%c)", key);
+				data->keys[k] = key;
+				data->targets[k] = pos->target;
+				k++;
+			} else {
+				sprintf(header, "   ");
+			}
+
+			memcpy(buf + pos->offset, header, sizeof(header) - 1);
+		}
+	}
+	data->keys[k] = 0;
+}
+
+static void search_conf(void)
+{
+	struct symbol **sym_arr;
+	struct gstr res;
+	struct gstr title;
+	char *dialog_input;
+	int dres, vscroll = 0, hscroll = 0;
+	bool again;
+	struct gstr sttext;
+	struct subtitle_part stpart;
+
+	title = str_new();
+	str_printf( &title, _("Enter (sub)string or regexp to search for "
+			      "(with or without \"%s\")"), CONFIG_);
+
+again:
+	dialog_clear();
+	dres = dialog_inputbox(_("Search Configuration Parameter"),
+			      str_get(&title),
+			      10, 75, "");
+	switch (dres) {
+	case 0:
+		break;
+	case 1:
+		show_helptext(_("Search Configuration"), search_help);
+		goto again;
+	default:
+		str_free(&title);
+		return;
+	}
+
+	/* strip the prefix if necessary */
+	dialog_input = dialog_input_result;
+	if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
+		dialog_input += strlen(CONFIG_);
+
+	sttext = str_new();
+	str_printf(&sttext, "Search (%s)", dialog_input_result);
+	stpart.text = str_get(&sttext);
+	list_add_tail(&stpart.entries, &trail);
+
+	sym_arr = sym_re_search(dialog_input);
+	do {
+		LIST_HEAD(head);
+		struct menu *targets[JUMP_NB];
+		int keys[JUMP_NB + 1], i;
+		struct search_data data = {
+			.head = &head,
+			.targets = targets,
+			.keys = keys,
+		};
+		struct jump_key *pos, *tmp;
+
+		res = get_relations_str(sym_arr, &head);
+		set_subtitle();
+		dres = show_textbox_ext(_("Search Results"), (char *)
+					str_get(&res), 0, 0, keys, &vscroll,
+					&hscroll, &update_text, (void *)
+					&data);
+		again = false;
+		for (i = 0; i < JUMP_NB && keys[i]; i++)
+			if (dres == keys[i]) {
+				conf(targets[i]->parent, targets[i]);
+				again = true;
+			}
+		str_free(&res);
+		list_for_each_entry_safe(pos, tmp, &head, entries)
+			free(pos);
+	} while (again);
+	free(sym_arr);
+	str_free(&title);
+	list_del(trail.prev);
+	str_free(&sttext);
+}
+
+static void build_conf(struct menu *menu)
+{
+	struct symbol *sym;
+	struct property *prop;
+	struct menu *child;
+	int type, tmp, doint = 2;
+	tristate val;
+	char ch;
+	bool visible;
+
+	/*
+	 * note: menu_is_visible() has side effect that it will
+	 * recalc the value of the symbol.
+	 */
+	visible = menu_is_visible(menu);
+	if (show_all_options && !menu_has_prompt(menu))
+		return;
+	else if (!show_all_options && !visible)
+		return;
+
+	sym = menu->sym;
+	prop = menu->prompt;
+	if (!sym) {
+		if (prop && menu != current_menu) {
+			const char *prompt = menu_get_prompt(menu);
+			switch (prop->type) {
+			case P_MENU:
+				child_count++;
+				prompt = _(prompt);
+				if (single_menu_mode) {
+					item_make("%s%*c%s",
+						  menu->data ? "-->" : "++>",
+						  indent + 1, ' ', prompt);
+				} else
+					item_make("   %*c%s  %s",
+						  indent + 1, ' ', prompt,
+						  menu_is_empty(menu) ? "----" : "--->");
+				item_set_tag('m');
+				item_set_data(menu);
+				if (single_menu_mode && menu->data)
+					goto conf_childs;
+				return;
+			case P_COMMENT:
+				if (prompt) {
+					child_count++;
+					item_make("   %*c*** %s ***", indent + 1, ' ', _(prompt));
+					item_set_tag(':');
+					item_set_data(menu);
+				}
+				break;
+			default:
+				if (prompt) {
+					child_count++;
+					item_make("---%*c%s", indent + 1, ' ', _(prompt));
+					item_set_tag(':');
+					item_set_data(menu);
+				}
+			}
+		} else
+			doint = 0;
+		goto conf_childs;
+	}
+
+	type = sym_get_type(sym);
+	if (sym_is_choice(sym)) {
+		struct symbol *def_sym = sym_get_choice_value(sym);
+		struct menu *def_menu = NULL;
+
+		child_count++;
+		for (child = menu->list; child; child = child->next) {
+			if (menu_is_visible(child) && child->sym == def_sym)
+				def_menu = child;
+		}
+
+		val = sym_get_tristate_value(sym);
+		if (sym_is_changable(sym)) {
+			switch (type) {
+			case S_BOOLEAN:
+				item_make("[%c]", val == no ? ' ' : '*');
+				break;
+			case S_TRISTATE:
+				switch (val) {
+				case yes: ch = '*'; break;
+				case mod: ch = 'M'; break;
+				default:  ch = ' '; break;
+				}
+				item_make("<%c>", ch);
+				break;
+			}
+			item_set_tag('t');
+			item_set_data(menu);
+		} else {
+			item_make("   ");
+			item_set_tag(def_menu ? 't' : ':');
+			item_set_data(menu);
+		}
+
+		item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
+		if (val == yes) {
+			if (def_menu) {
+				item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
+				item_add_str("  --->");
+				if (def_menu->list) {
+					indent += 2;
+					build_conf(def_menu);
+					indent -= 2;
+				}
+			}
+			return;
+		}
+	} else {
+		if (menu == current_menu) {
+			item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
+			item_set_tag(':');
+			item_set_data(menu);
+			goto conf_childs;
+		}
+		child_count++;
+		val = sym_get_tristate_value(sym);
+		if (sym_is_choice_value(sym) && val == yes) {
+			item_make("   ");
+			item_set_tag(':');
+			item_set_data(menu);
+		} else {
+			switch (type) {
+			case S_BOOLEAN:
+				if (sym_is_changable(sym))
+					item_make("[%c]", val == no ? ' ' : '*');
+				else
+					item_make("-%c-", val == no ? ' ' : '*');
+				item_set_tag('t');
+				item_set_data(menu);
+				break;
+			case S_TRISTATE:
+				switch (val) {
+				case yes: ch = '*'; break;
+				case mod: ch = 'M'; break;
+				default:  ch = ' '; break;
+				}
+				if (sym_is_changable(sym)) {
+					if (sym->rev_dep.tri == mod)
+						item_make("{%c}", ch);
+					else
+						item_make("<%c>", ch);
+				} else
+					item_make("-%c-", ch);
+				item_set_tag('t');
+				item_set_data(menu);
+				break;
+			default:
+				tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
+				item_make("(%s)", sym_get_string_value(sym));
+				tmp = indent - tmp + 4;
+				if (tmp < 0)
+					tmp = 0;
+				item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
+					     (sym_has_value(sym) || !sym_is_changable(sym)) ?
+					     "" : _(" (NEW)"));
+				item_set_tag('s');
+				item_set_data(menu);
+				goto conf_childs;
+			}
+		}
+		item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
+			  (sym_has_value(sym) || !sym_is_changable(sym)) ?
+			  "" : _(" (NEW)"));
+		if (menu->prompt->type == P_MENU) {
+			item_add_str("  %s", menu_is_empty(menu) ? "----" : "--->");
+			return;
+		}
+	}
+
+conf_childs:
+	indent += doint;
+	for (child = menu->list; child; child = child->next)
+		build_conf(child);
+	indent -= doint;
+}
+
+static void conf(struct menu *menu, struct menu *active_menu)
+{
+	struct menu *submenu;
+	const char *prompt = menu_get_prompt(menu);
+	struct subtitle_part stpart;
+	struct symbol *sym;
+	int res;
+	int s_scroll = 0;
+
+	if (menu != &rootmenu)
+		stpart.text = menu_get_prompt(menu);
+	else
+		stpart.text = NULL;
+	list_add_tail(&stpart.entries, &trail);
+
+	while (1) {
+		item_reset();
+		current_menu = menu;
+		build_conf(menu);
+		if (!child_count)
+			break;
+		set_subtitle();
+		dialog_clear();
+		res = dialog_menu(prompt ? _(prompt) : _("Main Menu"),
+				  _(menu_instructions),
+				  active_menu, &s_scroll);
+		if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
+			break;
+		if (item_count() != 0) {
+			if (!item_activate_selected())
+				continue;
+			if (!item_tag())
+				continue;
+		}
+		submenu = item_data();
+		active_menu = item_data();
+		if (submenu)
+			sym = submenu->sym;
+		else
+			sym = NULL;
+
+		switch (res) {
+		case 0:
+			switch (item_tag()) {
+			case 'm':
+				if (single_menu_mode)
+					submenu->data = (void *) (long) !submenu->data;
+				else
+					conf(submenu, NULL);
+				break;
+			case 't':
+				if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
+					conf_choice(submenu);
+				else if (submenu->prompt->type == P_MENU)
+					conf(submenu, NULL);
+				break;
+			case 's':
+				conf_string(submenu);
+				break;
+			}
+			break;
+		case 2:
+			if (sym)
+				show_help(submenu);
+			else {
+				reset_subtitle();
+				show_helptext(_("README"), _(mconf_readme));
+			}
+			break;
+		case 3:
+			reset_subtitle();
+			conf_save();
+			break;
+		case 4:
+			reset_subtitle();
+			conf_load();
+			break;
+		case 5:
+			if (item_is_tag('t')) {
+				if (sym_set_tristate_value(sym, yes))
+					break;
+				if (sym_set_tristate_value(sym, mod))
+					show_textbox(NULL, setmod_text, 6, 74);
+			}
+			break;
+		case 6:
+			if (item_is_tag('t'))
+				sym_set_tristate_value(sym, no);
+			break;
+		case 7:
+			if (item_is_tag('t'))
+				sym_set_tristate_value(sym, mod);
+			break;
+		case 8:
+			if (item_is_tag('t'))
+				sym_toggle_tristate_value(sym);
+			else if (item_is_tag('m'))
+				conf(submenu, NULL);
+			break;
+		case 9:
+			search_conf();
+			break;
+		case 10:
+			show_all_options = !show_all_options;
+			break;
+		}
+	}
+
+	list_del(trail.prev);
+}
+
+static int show_textbox_ext(const char *title, char *text, int r, int c, int
+			    *keys, int *vscroll, int *hscroll, update_text_fn
+			    update_text, void *data)
+{
+	dialog_clear();
+	return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
+			      update_text, data);
+}
+
+static void show_textbox(const char *title, const char *text, int r, int c)
+{
+	show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
+			 NULL, NULL);
+}
+
+static void show_helptext(const char *title, const char *text)
+{
+	show_textbox(title, text, 0, 0);
+}
+
+static void conf_message_callback(const char *fmt, va_list ap)
+{
+	char buf[PATH_MAX+1];
+
+	vsnprintf(buf, sizeof(buf), fmt, ap);
+	if (save_and_exit)
+		printf("%s", buf);
+	else
+		show_textbox(NULL, buf, 6, 60);
+}
+
+static void show_help(struct menu *menu)
+{
+	struct gstr help = str_new();
+
+	help.max_width = getmaxx(stdscr) - 10;
+	menu_get_ext_help(menu, &help);
+
+	show_helptext(_(menu_get_prompt(menu)), str_get(&help));
+	str_free(&help);
+}
+
+static void conf_choice(struct menu *menu)
+{
+	const char *prompt = _(menu_get_prompt(menu));
+	struct menu *child;
+	struct symbol *active;
+	struct property *prop;
+
+	active = sym_get_choice_value(menu->sym);
+	while (1) {
+		int res;
+		int selected;
+		item_reset();
+
+		current_menu = menu;
+		for (child = menu->list; child; child = child->next) {
+			if (!menu_is_visible(child))
+				continue;
+			if (child->sym)
+				item_make("%s", _(menu_get_prompt(child)));
+			else {
+				item_make("*** %s ***", _(menu_get_prompt(child)));
+				item_set_tag(':');
+			}
+			item_set_data(child);
+			if (child->sym == active)
+				item_set_selected(1);
+			if (child->sym == sym_get_choice_value(menu->sym))
+				item_set_tag('X');
+		}
+		dialog_clear();
+		res = dialog_checklist(prompt ? _(prompt) : _("Main Menu"),
+					_(radiolist_instructions),
+					MENUBOX_HEIGTH_MIN,
+					MENUBOX_WIDTH_MIN,
+					CHECKLIST_HEIGTH_MIN);
+		selected = item_activate_selected();
+		switch (res) {
+		case 0:
+			if (selected) {
+				child = item_data();
+				if (!child->sym)
+					break;
+
+				if (sym_get_tristate_value(child->sym) != yes) {
+					for_all_properties(menu->sym, prop, P_RESET) {
+						if (expr_calc_value(prop->visible.expr) == no)
+							continue;
+
+						conf_reset(S_DEF_USER);
+						break;
+					}
+				}
+				sym_set_tristate_value(child->sym, yes);
+			}
+			return;
+		case 1:
+			if (selected) {
+				child = item_data();
+				show_help(child);
+				active = child->sym;
+			} else
+				show_help(menu);
+			break;
+		case KEY_ESC:
+			return;
+		case -ERRDISPLAYTOOSMALL:
+			return;
+		}
+	}
+}
+
+static void conf_string(struct menu *menu)
+{
+	const char *prompt = menu_get_prompt(menu);
+
+	while (1) {
+		int res;
+		const char *heading;
+
+		switch (sym_get_type(menu->sym)) {
+		case S_INT:
+			heading = _(inputbox_instructions_int);
+			break;
+		case S_HEX:
+			heading = _(inputbox_instructions_hex);
+			break;
+		case S_STRING:
+			heading = _(inputbox_instructions_string);
+			break;
+		default:
+			heading = _("Internal mconf error!");
+		}
+		dialog_clear();
+		res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
+				      heading, 10, 75,
+				      sym_get_string_value(menu->sym));
+		switch (res) {
+		case 0:
+			if (sym_set_string_value(menu->sym, dialog_input_result))
+				return;
+			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
+			break;
+		case 1:
+			show_help(menu);
+			break;
+		case KEY_ESC:
+			return;
+		}
+	}
+}
+
+static void conf_load(void)
+{
+
+	while (1) {
+		int res;
+		dialog_clear();
+		res = dialog_inputbox(NULL, load_config_text,
+				      11, 55, filename);
+		switch(res) {
+		case 0:
+			if (!dialog_input_result[0])
+				return;
+			if (!conf_read(dialog_input_result)) {
+				set_config_filename(dialog_input_result);
+				sym_set_change_count(1);
+				return;
+			}
+			show_textbox(NULL, _("File does not exist!"), 5, 38);
+			break;
+		case 1:
+			show_helptext(_("Load Alternate Configuration"), load_config_help);
+			break;
+		case KEY_ESC:
+			return;
+		}
+	}
+}
+
+static void conf_save(void)
+{
+	while (1) {
+		int res;
+		dialog_clear();
+		res = dialog_inputbox(NULL, save_config_text,
+				      11, 55, filename);
+		switch(res) {
+		case 0:
+			if (!dialog_input_result[0])
+				return;
+			if (!conf_write(dialog_input_result)) {
+				set_config_filename(dialog_input_result);
+				return;
+			}
+			show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
+			break;
+		case 1:
+			show_helptext(_("Save Alternate Configuration"), save_config_help);
+			break;
+		case KEY_ESC:
+			return;
+		}
+	}
+}
+
+static int handle_exit(void)
+{
+	int res;
+
+	save_and_exit = 1;
+	reset_subtitle();
+	dialog_clear();
+	if (conf_get_changed())
+		res = dialog_yesno(NULL,
+				   _("Do you wish to save your new configuration?\n"
+				     "(Press <ESC><ESC> to continue kernel configuration.)"),
+				   6, 60);
+	else
+		res = -1;
+
+	end_dialog(saved_x, saved_y);
+
+	switch (res) {
+	case 0:
+		if (conf_write(filename)) {
+			fprintf(stderr, _("\n\n"
+					  "Error while writing of the configuration.\n"
+					  "Your configuration changes were NOT saved."
+					  "\n\n"));
+			return 1;
+		}
+		/* fall through */
+	case -1:
+		printf(_("\n\n"
+			 "*** End of the configuration.\n"
+			 "*** Execute 'make' to start the build or try 'make help'."
+			 "\n\n"));
+		res = 0;
+		break;
+	default:
+		fprintf(stderr, _("\n\n"
+				  "Your configuration changes were NOT saved."
+				  "\n\n"));
+		if (res != KEY_ESC)
+			res = 0;
+	}
+
+	return res;
+}
+
+static void sig_handler(int signo)
+{
+	exit(handle_exit());
+}
+
+int main(int ac, char **av)
+{
+	char *mode;
+	int res;
+
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+
+	signal(SIGINT, sig_handler);
+
+	conf_parse(av[1]);
+	conf_read(NULL);
+
+	mode = getenv("MENUCONFIG_MODE");
+	if (mode) {
+		if (!strcasecmp(mode, "single_menu"))
+			single_menu_mode = 1;
+	}
+
+	if (init_dialog(NULL)) {
+		fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
+		fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
+		return 1;
+	}
+
+	set_config_filename(conf_get_configname());
+	conf_set_message_callback(conf_message_callback);
+	do {
+		conf(&rootmenu, NULL);
+		res = handle_exit();
+	} while (res == KEY_ESC);
+
+	return res;
+}
diff --git a/scripts/config/menu.c b/scripts/config/menu.c
new file mode 100644
index 0000000..72c9dba
--- /dev/null
+++ b/scripts/config/menu.c
@@ -0,0 +1,697 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "lkc.h"
+
+static const char nohelp_text[] = "There is no help available for this option.";
+
+struct menu rootmenu;
+static struct menu **last_entry_ptr;
+
+struct file *file_list;
+struct file *current_file;
+
+void menu_warn(struct menu *menu, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+}
+
+static void prop_warn(struct property *prop, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+}
+
+void _menu_init(void)
+{
+	current_entry = current_menu = &rootmenu;
+	last_entry_ptr = &rootmenu.list;
+}
+
+void menu_add_entry(struct symbol *sym)
+{
+	struct menu *menu;
+
+	menu = xmalloc(sizeof(*menu));
+	memset(menu, 0, sizeof(*menu));
+	menu->sym = sym;
+	menu->parent = current_menu;
+	menu->file = current_file;
+	menu->lineno = zconf_lineno();
+
+	*last_entry_ptr = menu;
+	last_entry_ptr = &menu->next;
+	current_entry = menu;
+	if (sym)
+		menu_add_symbol(P_SYMBOL, sym, NULL);
+}
+
+void menu_end_entry(void)
+{
+}
+
+struct menu *menu_add_menu(void)
+{
+	menu_end_entry();
+	last_entry_ptr = &current_entry->list;
+	return current_menu = current_entry;
+}
+
+void menu_end_menu(void)
+{
+	last_entry_ptr = &current_menu->next;
+	current_menu = current_menu->parent;
+}
+
+static struct expr *menu_check_dep(struct expr *e)
+{
+	if (!e)
+		return e;
+
+	switch (e->type) {
+	case E_NOT:
+		e->left.expr = menu_check_dep(e->left.expr);
+		break;
+	case E_OR:
+	case E_AND:
+		e->left.expr = menu_check_dep(e->left.expr);
+		e->right.expr = menu_check_dep(e->right.expr);
+		break;
+	case E_SYMBOL:
+		/* change 'm' into 'm' && MODULES */
+		if (e->left.sym == &symbol_mod)
+			return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
+		break;
+	default:
+		break;
+	}
+	return e;
+}
+
+void menu_add_dep(struct expr *dep)
+{
+	current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
+}
+
+void menu_set_type(int type)
+{
+	struct symbol *sym = current_entry->sym;
+
+	if (sym->type == type)
+		return;
+	if (sym->type == S_UNKNOWN) {
+		sym->type = type;
+		return;
+	}
+	menu_warn(current_entry,
+		"ignoring type redefinition of '%s' from '%s' to '%s'",
+		sym->name ? sym->name : "<choice>",
+		sym_type_name(sym->type), sym_type_name(type));
+}
+
+struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
+{
+	struct property *prop = prop_alloc(type, current_entry->sym);
+
+	prop->menu = current_entry;
+	prop->expr = expr;
+	prop->visible.expr = menu_check_dep(dep);
+
+	if (prompt) {
+		if (isspace(*prompt)) {
+			prop_warn(prop, "leading whitespace ignored");
+			while (isspace(*prompt))
+				prompt++;
+		}
+		if (current_entry->prompt && current_entry != &rootmenu)
+			prop_warn(prop, "prompt redefined");
+
+		/* Apply all upper menus' visibilities to actual prompts. */
+		if(type == P_PROMPT) {
+			struct menu *menu = current_entry;
+
+			while ((menu = menu->parent) != NULL) {
+				struct expr *dup_expr;
+
+				if (!menu->visibility)
+					continue;
+				/*
+				 * Do not add a reference to the
+				 * menu's visibility expression but
+				 * use a copy of it.  Otherwise the
+				 * expression reduction functions
+				 * will modify expressions that have
+				 * multiple references which can
+				 * cause unwanted side effects.
+				 */
+				dup_expr = expr_copy(menu->visibility);
+
+				prop->visible.expr
+					= expr_alloc_and(prop->visible.expr,
+							 dup_expr);
+			}
+		}
+
+		current_entry->prompt = prop;
+	}
+	prop->text = prompt;
+
+	return prop;
+}
+
+struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
+{
+	return menu_add_prop(type, prompt, NULL, dep);
+}
+
+void menu_add_visibility(struct expr *expr)
+{
+	current_entry->visibility = expr_alloc_and(current_entry->visibility,
+	    expr);
+}
+
+void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
+{
+	menu_add_prop(type, NULL, expr, dep);
+}
+
+void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
+{
+	menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
+}
+
+void menu_add_option(int token, char *arg)
+{
+	switch (token) {
+	case T_OPT_MODULES:
+		if (modules_sym)
+			zconf_error("symbol '%s' redefines option 'modules'"
+				    " already defined by symbol '%s'",
+				    current_entry->sym->name,
+				    modules_sym->name
+				    );
+		modules_sym = current_entry->sym;
+		break;
+	case T_OPT_DEFCONFIG_LIST:
+		if (!sym_defconfig_list)
+			sym_defconfig_list = current_entry->sym;
+		else if (sym_defconfig_list != current_entry->sym)
+			zconf_error("trying to redefine defconfig symbol");
+		break;
+	case T_OPT_ENV:
+		prop_add_env(arg);
+		break;
+	case T_OPT_ALLNOCONFIG_Y:
+		current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
+		break;
+	}
+}
+
+static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
+{
+	return sym2->type == S_INT || sym2->type == S_HEX ||
+	       (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
+}
+
+static void sym_check_prop(struct symbol *sym)
+{
+	struct property *prop;
+	struct symbol *sym2;
+	for (prop = sym->prop; prop; prop = prop->next) {
+		switch (prop->type) {
+		case P_DEFAULT:
+			if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
+			    prop->expr->type != E_SYMBOL)
+				prop_warn(prop,
+				    "default for config symbol '%s'"
+				    " must be a single symbol", sym->name);
+			if (prop->expr->type != E_SYMBOL)
+				break;
+			sym2 = prop_get_symbol(prop);
+			if (sym->type == S_HEX || sym->type == S_INT) {
+				if (!menu_validate_number(sym, sym2))
+					prop_warn(prop,
+					    "'%s': number is invalid",
+					    sym->name);
+			}
+			break;
+		case P_SELECT:
+			sym2 = prop_get_symbol(prop);
+			if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
+				prop_warn(prop,
+				    "config symbol '%s' uses select, but is "
+				    "not boolean or tristate", sym->name);
+			else if (sym2->type != S_UNKNOWN &&
+				 sym2->type != S_BOOLEAN &&
+				 sym2->type != S_TRISTATE)
+				prop_warn(prop,
+				    "'%s' has wrong type. 'select' only "
+				    "accept arguments of boolean and "
+				    "tristate type", sym2->name);
+			break;
+		case P_RANGE:
+			if (sym->type != S_INT && sym->type != S_HEX)
+				prop_warn(prop, "range is only allowed "
+						"for int or hex symbols");
+			if (!menu_validate_number(sym, prop->expr->left.sym) ||
+			    !menu_validate_number(sym, prop->expr->right.sym))
+				prop_warn(prop, "range is invalid");
+			break;
+		default:
+			;
+		}
+	}
+}
+
+void menu_finalize(struct menu *parent)
+{
+	struct menu *menu, *last_menu;
+	struct symbol *sym;
+	struct property *prop;
+	struct expr *parentdep, *basedep, *dep, *dep2, **ep;
+
+	sym = parent->sym;
+	if (parent->list) {
+		if (sym && sym_is_choice(sym)) {
+			if (sym->type == S_UNKNOWN) {
+				/* find the first choice value to find out choice type */
+				current_entry = parent;
+				for (menu = parent->list; menu; menu = menu->next) {
+					if (menu->sym && menu->sym->type != S_UNKNOWN) {
+						menu_set_type(menu->sym->type);
+						break;
+					}
+				}
+			}
+			/* set the type of the remaining choice values */
+			for (menu = parent->list; menu; menu = menu->next) {
+				current_entry = menu;
+				if (menu->sym && menu->sym->type == S_UNKNOWN)
+					menu_set_type(sym->type);
+			}
+			parentdep = expr_alloc_symbol(sym);
+		} else if (parent->prompt)
+			parentdep = parent->prompt->visible.expr;
+		else
+			parentdep = parent->dep;
+
+		for (menu = parent->list; menu; menu = menu->next) {
+			basedep = expr_transform(menu->dep);
+			basedep = expr_alloc_and(expr_copy(parentdep), basedep);
+			basedep = expr_eliminate_dups(basedep);
+			menu->dep = basedep;
+			if (menu->sym)
+				prop = menu->sym->prop;
+			else
+				prop = menu->prompt;
+			for (; prop; prop = prop->next) {
+				if (prop->menu != menu)
+					continue;
+				dep = expr_transform(prop->visible.expr);
+				dep = expr_alloc_and(expr_copy(basedep), dep);
+				dep = expr_eliminate_dups(dep);
+				if (menu->sym && menu->sym->type != S_TRISTATE)
+					dep = expr_trans_bool(dep);
+				prop->visible.expr = dep;
+				if (prop->type == P_SELECT) {
+					struct symbol *es = prop_get_symbol(prop);
+					es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
+							expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
+				}
+			}
+		}
+		for (menu = parent->list; menu; menu = menu->next)
+			menu_finalize(menu);
+	} else if (sym) {
+		basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
+		basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
+		basedep = expr_eliminate_dups(expr_transform(basedep));
+		last_menu = NULL;
+		for (menu = parent->next; menu; menu = menu->next) {
+			dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
+			if (!expr_contains_symbol(dep, sym))
+				break;
+			if (expr_depends_symbol(dep, sym))
+				goto next;
+			dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
+			dep = expr_eliminate_dups(expr_transform(dep));
+			dep2 = expr_copy(basedep);
+			expr_eliminate_eq(&dep, &dep2);
+			expr_free(dep);
+			if (!expr_is_yes(dep2)) {
+				expr_free(dep2);
+				break;
+			}
+			expr_free(dep2);
+		next:
+			menu_finalize(menu);
+			menu->parent = parent;
+			last_menu = menu;
+		}
+		if (last_menu) {
+			parent->list = parent->next;
+			parent->next = last_menu->next;
+			last_menu->next = NULL;
+		}
+
+		sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
+	}
+	for (menu = parent->list; menu; menu = menu->next) {
+		if (sym && sym_is_choice(sym) &&
+		    menu->sym && !sym_is_choice_value(menu->sym)) {
+			current_entry = menu;
+			menu->sym->flags |= SYMBOL_CHOICEVAL;
+			if (!menu->prompt)
+				menu_warn(menu, "choice value must have a prompt");
+			for (prop = menu->sym->prop; prop; prop = prop->next) {
+				if (prop->type == P_DEFAULT)
+					prop_warn(prop, "defaults for choice "
+						  "values not supported");
+				if (prop->menu == menu)
+					continue;
+				if (prop->type == P_PROMPT &&
+				    prop->menu->parent->sym != sym)
+					prop_warn(prop, "choice value used outside its choice group");
+			}
+			/* Non-tristate choice values of tristate choices must
+			 * depend on the choice being set to Y. The choice
+			 * values' dependencies were propagated to their
+			 * properties above, so the change here must be re-
+			 * propagated.
+			 */
+			if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
+				basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
+				menu->dep = expr_alloc_and(basedep, menu->dep);
+				for (prop = menu->sym->prop; prop; prop = prop->next) {
+					if (prop->menu != menu)
+						continue;
+					prop->visible.expr = expr_alloc_and(expr_copy(basedep),
+									    prop->visible.expr);
+				}
+			}
+			menu_add_symbol(P_CHOICE, sym, NULL);
+			prop = sym_get_choice_prop(sym);
+			for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
+				;
+			*ep = expr_alloc_one(E_LIST, NULL);
+			(*ep)->right.sym = menu->sym;
+		}
+		if (menu->list && (!menu->prompt || !menu->prompt->text)) {
+			for (last_menu = menu->list; ; last_menu = last_menu->next) {
+				last_menu->parent = parent;
+				if (!last_menu->next)
+					break;
+			}
+			last_menu->next = menu->next;
+			menu->next = menu->list;
+			menu->list = NULL;
+		}
+	}
+
+	if (sym && !(sym->flags & SYMBOL_WARNED)) {
+		if (sym->type == S_UNKNOWN)
+			menu_warn(parent, "config symbol defined without type");
+
+		if (sym_is_choice(sym) && !parent->prompt)
+			menu_warn(parent, "choice must have a prompt");
+
+		/* Check properties connected to this symbol */
+		sym_check_prop(sym);
+		sym->flags |= SYMBOL_WARNED;
+	}
+
+	if (sym && !sym_is_optional(sym) && parent->prompt) {
+		sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
+				expr_alloc_and(parent->prompt->visible.expr,
+					expr_alloc_symbol(&symbol_mod)));
+	}
+}
+
+bool menu_has_prompt(struct menu *menu)
+{
+	if (!menu->prompt)
+		return false;
+	return true;
+}
+
+/*
+ * Determine if a menu is empty.
+ * A menu is considered empty if it contains no or only
+ * invisible entries.
+ */
+bool menu_is_empty(struct menu *menu)
+{
+	struct menu *child;
+
+	for (child = menu->list; child; child = child->next) {
+		if (menu_is_visible(child))
+			return(false);
+	}
+	return(true);
+}
+
+bool menu_is_visible(struct menu *menu)
+{
+	struct menu *child;
+	struct symbol *sym;
+	tristate visible;
+
+	if (!menu->prompt)
+		return false;
+
+	if (menu->visibility) {
+		if (expr_calc_value(menu->visibility) == no)
+			return no;
+	}
+
+	sym = menu->sym;
+	if (sym) {
+		sym_calc_value(sym);
+		visible = menu->prompt->visible.tri;
+	} else
+		visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
+
+	if (visible != no)
+		return true;
+
+	if (!sym || sym_get_tristate_value(menu->sym) == no)
+		return false;
+
+	for (child = menu->list; child; child = child->next) {
+		if (menu_is_visible(child)) {
+			if (sym)
+				sym->flags |= SYMBOL_DEF_USER;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+const char *menu_get_prompt(struct menu *menu)
+{
+	if (menu->prompt)
+		return menu->prompt->text;
+	else if (menu->sym)
+		return menu->sym->name;
+	return NULL;
+}
+
+struct menu *menu_get_root_menu(struct menu *menu)
+{
+	return &rootmenu;
+}
+
+struct menu *menu_get_parent_menu(struct menu *menu)
+{
+	enum prop_type type;
+
+	for (; menu != &rootmenu; menu = menu->parent) {
+		type = menu->prompt ? menu->prompt->type : 0;
+		if (type == P_MENU)
+			break;
+	}
+	return menu;
+}
+
+bool menu_has_help(struct menu *menu)
+{
+	return menu->help != NULL;
+}
+
+const char *menu_get_help(struct menu *menu)
+{
+	if (menu->help)
+		return menu->help;
+	else
+		return "";
+}
+
+static void get_prompt_str(struct gstr *r, struct property *prop,
+			   struct list_head *head)
+{
+	int i, j;
+	struct menu *submenu[8], *menu, *location = NULL;
+	struct jump_key *jump = NULL;
+
+	str_printf(r, _("Prompt: %s\n"), _(prop->text));
+	menu = prop->menu->parent;
+	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
+		bool accessible = menu_is_visible(menu);
+
+		submenu[i++] = menu;
+		if (location == NULL && accessible)
+			location = menu;
+	}
+	if (head && location) {
+		jump = xmalloc(sizeof(struct jump_key));
+
+		if (menu_is_visible(prop->menu)) {
+			/*
+			 * There is not enough room to put the hint at the
+			 * beginning of the "Prompt" line. Put the hint on the
+			 * last "Location" line even when it would belong on
+			 * the former.
+			 */
+			jump->target = prop->menu;
+		} else
+			jump->target = location;
+
+		if (list_empty(head))
+			jump->index = 0;
+		else
+			jump->index = list_entry(head->prev, struct jump_key,
+						 entries)->index + 1;
+
+		list_add_tail(&jump->entries, head);
+	}
+
+	if (i > 0) {
+		str_printf(r, _("  Location:\n"));
+		for (j = 4; --i >= 0; j += 2) {
+			menu = submenu[i];
+			if (jump && menu == location)
+				jump->offset = strlen(r->s);
+			str_printf(r, "%*c-> %s", j, ' ',
+				   _(menu_get_prompt(menu)));
+			if (menu->sym) {
+				str_printf(r, " (%s [=%s])", menu->sym->name ?
+					menu->sym->name : _("<choice>"),
+					sym_get_string_value(menu->sym));
+			}
+			str_append(r, "\n");
+		}
+	}
+}
+
+/*
+ * get property of type P_SYMBOL
+ */
+static struct property *get_symbol_prop(struct symbol *sym)
+{
+	struct property *prop = NULL;
+
+	for_all_properties(sym, prop, P_SYMBOL)
+		break;
+	return prop;
+}
+
+/*
+ * head is optional and may be NULL
+ */
+void get_symbol_str(struct gstr *r, struct symbol *sym,
+		    struct list_head *head)
+{
+	bool hit;
+	struct property *prop;
+
+	if (sym && sym->name) {
+		str_printf(r, "Symbol: %s [=%s]\n", sym->name,
+			   sym_get_string_value(sym));
+		str_printf(r, "Type  : %s\n", sym_type_name(sym->type));
+		if (sym->type == S_INT || sym->type == S_HEX) {
+			prop = sym_get_range_prop(sym);
+			if (prop) {
+				str_printf(r, "Range : ");
+				expr_gstr_print(prop->expr, r);
+				str_append(r, "\n");
+			}
+		}
+	}
+	for_all_prompts(sym, prop)
+		get_prompt_str(r, prop, head);
+
+	prop = get_symbol_prop(sym);
+	if (prop) {
+		str_printf(r, _("  Defined at %s:%d\n"), prop->menu->file->name,
+			prop->menu->lineno);
+		if (!expr_is_yes(prop->visible.expr)) {
+			str_append(r, _("  Depends on: "));
+			expr_gstr_print(prop->visible.expr, r);
+			str_append(r, "\n");
+		}
+	}
+
+	hit = false;
+	for_all_properties(sym, prop, P_SELECT) {
+		if (!hit) {
+			str_append(r, "  Selects: ");
+			hit = true;
+		} else
+			str_printf(r, " && ");
+		expr_gstr_print(prop->expr, r);
+	}
+	if (hit)
+		str_append(r, "\n");
+	if (sym->rev_dep.expr) {
+		str_append(r, _("  Selected by: "));
+		expr_gstr_print(sym->rev_dep.expr, r);
+		str_append(r, "\n");
+	}
+	str_append(r, "\n\n");
+}
+
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
+{
+	struct symbol *sym;
+	struct gstr res = str_new();
+	int i;
+
+	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
+		get_symbol_str(&res, sym, head);
+	if (!i)
+		str_append(&res, _("No matches found.\n"));
+	return res;
+}
+
+
+void menu_get_ext_help(struct menu *menu, struct gstr *help)
+{
+	struct symbol *sym = menu->sym;
+	const char *help_text = nohelp_text;
+
+	if (menu_has_help(menu)) {
+		if (sym->name)
+			str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
+		help_text = menu_get_help(menu);
+	}
+	str_printf(help, "%s\n", _(help_text));
+	if (sym)
+		get_symbol_str(help, sym, NULL);
+}
diff --git a/scripts/config/symbol.c b/scripts/config/symbol.c
new file mode 100644
index 0000000..7caabdb
--- /dev/null
+++ b/scripts/config/symbol.c
@@ -0,0 +1,1373 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <regex.h>
+#include <sys/utsname.h>
+
+#include "lkc.h"
+
+struct symbol symbol_yes = {
+	.name = "y",
+	.curr = { "y", yes },
+	.flags = SYMBOL_CONST|SYMBOL_VALID,
+}, symbol_mod = {
+	.name = "m",
+	.curr = { "m", mod },
+	.flags = SYMBOL_CONST|SYMBOL_VALID,
+}, symbol_no = {
+	.name = "n",
+	.curr = { "n", no },
+	.flags = SYMBOL_CONST|SYMBOL_VALID,
+}, symbol_empty = {
+	.name = "",
+	.curr = { "", no },
+	.flags = SYMBOL_VALID,
+};
+
+struct symbol *sym_defconfig_list;
+struct symbol *modules_sym;
+tristate modules_val;
+
+struct expr *sym_env_list;
+
+static void sym_add_default(struct symbol *sym, const char *def)
+{
+	struct property *prop = prop_alloc(P_DEFAULT, sym);
+
+	prop->expr = expr_alloc_symbol(sym_lookup(def, SYMBOL_CONST));
+}
+
+void sym_init(void)
+{
+	struct symbol *sym;
+	struct utsname uts;
+	static bool inited = false;
+
+	if (inited)
+		return;
+	inited = true;
+
+	uname(&uts);
+
+	sym = sym_lookup("UNAME_RELEASE", 0);
+	sym->type = S_STRING;
+	sym->flags |= SYMBOL_AUTO;
+	sym_add_default(sym, uts.release);
+}
+
+enum symbol_type sym_get_type(struct symbol *sym)
+{
+	enum symbol_type type = sym->type;
+
+	if (type == S_TRISTATE) {
+		if (sym_is_choice_value(sym) && sym->visible == yes)
+			type = S_BOOLEAN;
+		else if (modules_val == no)
+			type = S_BOOLEAN;
+	}
+	return type;
+}
+
+const char *sym_type_name(enum symbol_type type)
+{
+	switch (type) {
+	case S_BOOLEAN:
+		return "boolean";
+	case S_TRISTATE:
+		return "tristate";
+	case S_INT:
+		return "integer";
+	case S_HEX:
+		return "hex";
+	case S_STRING:
+		return "string";
+	case S_UNKNOWN:
+		return "unknown";
+	case S_OTHER:
+		break;
+	}
+	return "???";
+}
+
+struct property *sym_get_choice_prop(struct symbol *sym)
+{
+	struct property *prop;
+
+	for_all_choices(sym, prop)
+		return prop;
+	return NULL;
+}
+
+struct property *sym_get_env_prop(struct symbol *sym)
+{
+	struct property *prop;
+
+	for_all_properties(sym, prop, P_ENV)
+		return prop;
+	return NULL;
+}
+
+struct property *sym_get_default_prop(struct symbol *sym)
+{
+	struct property *prop;
+
+	for_all_defaults(sym, prop) {
+		prop->visible.tri = expr_calc_value(prop->visible.expr);
+		if (prop->visible.tri != no)
+			return prop;
+	}
+	return NULL;
+}
+
+static struct property *sym_get_range_prop(struct symbol *sym)
+{
+	struct property *prop;
+
+	for_all_properties(sym, prop, P_RANGE) {
+		prop->visible.tri = expr_calc_value(prop->visible.expr);
+		if (prop->visible.tri != no)
+			return prop;
+	}
+	return NULL;
+}
+
+static long long sym_get_range_val(struct symbol *sym, int base)
+{
+	sym_calc_value(sym);
+	switch (sym->type) {
+	case S_INT:
+		base = 10;
+		break;
+	case S_HEX:
+		base = 16;
+		break;
+	default:
+		break;
+	}
+	return strtoll(sym->curr.val, NULL, base);
+}
+
+static void sym_validate_range(struct symbol *sym)
+{
+	struct property *prop;
+	int base;
+	long long val, val2;
+	char str[64];
+
+	switch (sym->type) {
+	case S_INT:
+		base = 10;
+		break;
+	case S_HEX:
+		base = 16;
+		break;
+	default:
+		return;
+	}
+	prop = sym_get_range_prop(sym);
+	if (!prop)
+		return;
+	val = strtoll(sym->curr.val, NULL, base);
+	val2 = sym_get_range_val(prop->expr->left.sym, base);
+	if (val >= val2) {
+		val2 = sym_get_range_val(prop->expr->right.sym, base);
+		if (val <= val2)
+			return;
+	}
+	if (sym->type == S_INT)
+		sprintf(str, "%lld", val2);
+	else
+		sprintf(str, "0x%llx", val2);
+	sym->curr.val = strdup(str);
+}
+
+static void sym_calc_visibility(struct symbol *sym)
+{
+	struct property *prop;
+	tristate tri;
+
+	/* any prompt visible? */
+	tri = no;
+	for_all_prompts(sym, prop) {
+		prop->visible.tri = expr_calc_value(prop->visible.expr);
+		tri = EXPR_OR(tri, prop->visible.tri);
+	}
+	if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
+		tri = yes;
+	if (sym->visible != tri) {
+		sym->visible = tri;
+		sym_set_changed(sym);
+	}
+	if (sym_is_choice_value(sym))
+		return;
+	/* defaulting to "yes" if no explicit "depends on" are given */
+	tri = yes;
+	if (sym->dir_dep.expr)
+		tri = expr_calc_value(sym->dir_dep.expr);
+	if (tri == mod)
+		tri = yes;
+	if (sym->dir_dep.tri != tri) {
+		sym->dir_dep.tri = tri;
+		sym_set_changed(sym);
+	}
+	tri = no;
+	if (sym->rev_dep.expr)
+		tri = expr_calc_value(sym->rev_dep.expr);
+	if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
+		tri = yes;
+	if (sym->rev_dep.tri != tri) {
+		sym->rev_dep.tri = tri;
+		sym_set_changed(sym);
+	}
+}
+
+/*
+ * Find the default symbol for a choice.
+ * First try the default values for the choice symbol
+ * Next locate the first visible choice value
+ * Return NULL if none was found
+ */
+struct symbol *sym_choice_default(struct symbol *sym)
+{
+	struct symbol *def_sym;
+	struct property *prop;
+	struct expr *e;
+
+	/* any of the defaults visible? */
+	for_all_defaults(sym, prop) {
+		prop->visible.tri = expr_calc_value(prop->visible.expr);
+		if (prop->visible.tri == no)
+			continue;
+		def_sym = prop_get_symbol(prop);
+		if (def_sym->visible != no)
+			return def_sym;
+	}
+
+	/* just get the first visible value */
+	prop = sym_get_choice_prop(sym);
+	expr_list_for_each_sym(prop->expr, e, def_sym)
+		if (def_sym->visible != no)
+			return def_sym;
+
+	/* failed to locate any defaults */
+	return NULL;
+}
+
+static struct symbol *sym_calc_choice(struct symbol *sym)
+{
+	struct symbol *def_sym;
+	struct property *prop;
+	struct expr *e;
+	int flags;
+
+	/* first calculate all choice values' visibilities */
+	flags = sym->flags;
+	prop = sym_get_choice_prop(sym);
+	expr_list_for_each_sym(prop->expr, e, def_sym) {
+		sym_calc_visibility(def_sym);
+		if (def_sym->visible != no)
+			flags &= def_sym->flags;
+	}
+
+	sym->flags &= flags | ~SYMBOL_DEF_USER;
+
+	/* is the user choice visible? */
+	def_sym = sym->def[S_DEF_USER].val;
+	if (def_sym && def_sym->visible != no)
+		return def_sym;
+
+	def_sym = sym_choice_default(sym);
+
+	if (def_sym == NULL)
+		/* no choice? reset tristate value */
+		sym->curr.tri = no;
+
+	return def_sym;
+}
+
+void sym_calc_value(struct symbol *sym)
+{
+	struct symbol_value newval, oldval;
+	struct property *prop;
+	struct expr *e;
+
+	if (!sym)
+		return;
+
+	if (sym->flags & SYMBOL_VALID)
+		return;
+
+	if (sym_is_choice_value(sym) &&
+	    sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES) {
+		sym->flags &= ~SYMBOL_NEED_SET_CHOICE_VALUES;
+		prop = sym_get_choice_prop(sym);
+		sym_calc_value(prop_get_symbol(prop));
+	}
+
+	sym->flags |= SYMBOL_VALID;
+
+	oldval = sym->curr;
+
+	switch (sym->type) {
+	case S_INT:
+	case S_HEX:
+	case S_STRING:
+		newval = symbol_empty.curr;
+		break;
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		newval = symbol_no.curr;
+		break;
+	default:
+		sym->curr.val = sym->name;
+		sym->curr.tri = no;
+		return;
+	}
+	if (!sym_is_choice_value(sym))
+		sym->flags &= ~SYMBOL_WRITE;
+
+	sym_calc_visibility(sym);
+
+	/* set default if recursively called */
+	sym->curr = newval;
+
+	switch (sym_get_type(sym)) {
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		if (sym_is_choice_value(sym) && sym->visible == yes) {
+			prop = sym_get_choice_prop(sym);
+			newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
+		} else {
+			if (sym->visible != no) {
+				/* if the symbol is visible use the user value
+				 * if available, otherwise try the default value
+				 */
+				sym->flags |= SYMBOL_WRITE;
+				if (sym_has_value(sym)) {
+					newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
+							      sym->visible);
+					goto calc_newval;
+				}
+			}
+			if (sym->rev_dep.tri != no)
+				sym->flags |= SYMBOL_WRITE;
+			if (!sym_is_choice(sym)) {
+				prop = sym_get_default_prop(sym);
+				if (prop) {
+					sym->flags |= SYMBOL_WRITE;
+					newval.tri = EXPR_AND(expr_calc_value(prop->expr),
+							      prop->visible.tri);
+				}
+			}
+		calc_newval:
+			if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
+				struct expr *e;
+				e = expr_simplify_unmet_dep(sym->rev_dep.expr,
+				    sym->dir_dep.expr);
+				fprintf(stderr, "warning: (");
+				expr_fprint(e, stderr);
+				fprintf(stderr, ") selects %s which has unmet direct dependencies (",
+					sym->name);
+				expr_fprint(sym->dir_dep.expr, stderr);
+				fprintf(stderr, ")\n");
+				expr_free(e);
+			}
+			newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
+		}
+		if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
+			newval.tri = yes;
+		break;
+	case S_STRING:
+	case S_HEX:
+	case S_INT:
+		if (sym->visible != no) {
+			sym->flags |= SYMBOL_WRITE;
+			if (sym_has_value(sym)) {
+				newval.val = sym->def[S_DEF_USER].val;
+				break;
+			}
+		}
+		prop = sym_get_default_prop(sym);
+		if (prop) {
+			struct symbol *ds = prop_get_symbol(prop);
+			if (ds) {
+				sym->flags |= SYMBOL_WRITE;
+				sym_calc_value(ds);
+				newval.val = ds->curr.val;
+			}
+		}
+		break;
+	default:
+		;
+	}
+
+	sym->curr = newval;
+	if (sym_is_choice(sym) && newval.tri == yes)
+		sym->curr.val = sym_calc_choice(sym);
+	sym_validate_range(sym);
+
+	if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {
+		sym_set_changed(sym);
+		if (modules_sym == sym) {
+			sym_set_all_changed();
+			modules_val = modules_sym->curr.tri;
+		}
+	}
+
+	if (sym_is_choice(sym)) {
+		struct symbol *choice_sym;
+
+		prop = sym_get_choice_prop(sym);
+		expr_list_for_each_sym(prop->expr, e, choice_sym) {
+			if ((sym->flags & SYMBOL_WRITE) &&
+			    choice_sym->visible != no)
+				choice_sym->flags |= SYMBOL_WRITE;
+			if (sym->flags & SYMBOL_CHANGED)
+				sym_set_changed(choice_sym);
+		}
+	}
+
+	if (sym->flags & SYMBOL_AUTO)
+		sym->flags &= ~SYMBOL_WRITE;
+
+	if (sym->flags & SYMBOL_NEED_SET_CHOICE_VALUES)
+		set_all_choice_values(sym);
+}
+
+void sym_clear_all_valid(void)
+{
+	struct symbol *sym;
+	int i;
+
+	for_all_symbols(i, sym)
+		sym->flags &= ~SYMBOL_VALID;
+	sym_add_change_count(1);
+	if (modules_sym)
+		sym_calc_value(modules_sym);
+}
+
+void sym_set_changed(struct symbol *sym)
+{
+	struct property *prop;
+
+	sym->flags |= SYMBOL_CHANGED;
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->menu)
+			prop->menu->flags |= MENU_CHANGED;
+	}
+}
+
+void sym_set_all_changed(void)
+{
+	struct symbol *sym;
+	int i;
+
+	for_all_symbols(i, sym)
+		sym_set_changed(sym);
+}
+
+bool sym_tristate_within_range(struct symbol *sym, tristate val)
+{
+	int type = sym_get_type(sym);
+
+	if (sym->visible == no)
+		return false;
+
+	if (type != S_BOOLEAN && type != S_TRISTATE)
+		return false;
+
+	if (type == S_BOOLEAN && val == mod)
+		return false;
+	if (sym->visible <= sym->rev_dep.tri)
+		return false;
+	if (sym_is_choice_value(sym) && sym->visible == yes)
+		return val == yes;
+	return val >= sym->rev_dep.tri && val <= sym->visible;
+}
+
+bool sym_set_tristate_value(struct symbol *sym, tristate val)
+{
+	tristate oldval = sym_get_tristate_value(sym);
+
+	if (oldval != val && !sym_tristate_within_range(sym, val))
+		return false;
+
+	if (!(sym->flags & SYMBOL_DEF_USER)) {
+		sym->flags |= SYMBOL_DEF_USER;
+		sym_set_changed(sym);
+	}
+	/*
+	 * setting a choice value also resets the new flag of the choice
+	 * symbol and all other choice values.
+	 */
+	if (sym_is_choice_value(sym) && val == yes) {
+		struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
+		struct property *prop;
+		struct expr *e;
+
+		cs->def[S_DEF_USER].val = sym;
+		cs->flags |= SYMBOL_DEF_USER;
+		prop = sym_get_choice_prop(cs);
+		for (e = prop->expr; e; e = e->left.expr) {
+			if (e->right.sym->visible != no)
+				e->right.sym->flags |= SYMBOL_DEF_USER;
+		}
+	}
+
+	sym->def[S_DEF_USER].tri = val;
+	if (oldval != val)
+		sym_clear_all_valid();
+
+	return true;
+}
+
+tristate sym_toggle_tristate_value(struct symbol *sym)
+{
+	tristate oldval, newval;
+
+	oldval = newval = sym_get_tristate_value(sym);
+	do {
+		switch (newval) {
+		case no:
+			newval = mod;
+			break;
+		case mod:
+			newval = yes;
+			break;
+		case yes:
+			newval = no;
+			break;
+		}
+		if (sym_set_tristate_value(sym, newval))
+			break;
+	} while (oldval != newval);
+	return newval;
+}
+
+bool sym_string_valid(struct symbol *sym, const char *str)
+{
+	signed char ch;
+
+	switch (sym->type) {
+	case S_STRING:
+		return true;
+	case S_INT:
+		ch = *str++;
+		if (ch == '-')
+			ch = *str++;
+		if (!isdigit(ch))
+			return false;
+		if (ch == '0' && *str != 0)
+			return false;
+		while ((ch = *str++)) {
+			if (!isdigit(ch))
+				return false;
+		}
+		return true;
+	case S_HEX:
+		if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
+			str += 2;
+		ch = *str++;
+		do {
+			if (!isxdigit(ch))
+				return false;
+		} while ((ch = *str++));
+		return true;
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		switch (str[0]) {
+		case 'y': case 'Y':
+		case 'm': case 'M':
+		case 'n': case 'N':
+			return true;
+		}
+		return false;
+	default:
+		return false;
+	}
+}
+
+bool sym_string_within_range(struct symbol *sym, const char *str)
+{
+	struct property *prop;
+	long long val;
+
+	switch (sym->type) {
+	case S_STRING:
+		return sym_string_valid(sym, str);
+	case S_INT:
+		if (!sym_string_valid(sym, str))
+			return false;
+		prop = sym_get_range_prop(sym);
+		if (!prop)
+			return true;
+		val = strtoll(str, NULL, 10);
+		return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
+		       val <= sym_get_range_val(prop->expr->right.sym, 10);
+	case S_HEX:
+		if (!sym_string_valid(sym, str))
+			return false;
+		prop = sym_get_range_prop(sym);
+		if (!prop)
+			return true;
+		val = strtoll(str, NULL, 16);
+		return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
+		       val <= sym_get_range_val(prop->expr->right.sym, 16);
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		switch (str[0]) {
+		case 'y': case 'Y':
+			return sym_tristate_within_range(sym, yes);
+		case 'm': case 'M':
+			return sym_tristate_within_range(sym, mod);
+		case 'n': case 'N':
+			return sym_tristate_within_range(sym, no);
+		}
+		return false;
+	default:
+		return false;
+	}
+}
+
+bool sym_set_string_value(struct symbol *sym, const char *newval)
+{
+	const char *oldval;
+	char *val;
+	int size;
+
+	switch (sym->type) {
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		switch (newval[0]) {
+		case 'y': case 'Y':
+			return sym_set_tristate_value(sym, yes);
+		case 'm': case 'M':
+			return sym_set_tristate_value(sym, mod);
+		case 'n': case 'N':
+			return sym_set_tristate_value(sym, no);
+		}
+		return false;
+	default:
+		;
+	}
+
+	if (!sym_string_within_range(sym, newval))
+		return false;
+
+	if (!(sym->flags & SYMBOL_DEF_USER)) {
+		sym->flags |= SYMBOL_DEF_USER;
+		sym_set_changed(sym);
+	}
+
+	oldval = sym->def[S_DEF_USER].val;
+	size = strlen(newval) + 1;
+	if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
+		size += 2;
+		sym->def[S_DEF_USER].val = val = xmalloc(size);
+		*val++ = '0';
+		*val++ = 'x';
+	} else if (!oldval || strcmp(oldval, newval))
+		sym->def[S_DEF_USER].val = val = xmalloc(size);
+	else
+		return true;
+
+	strcpy(val, newval);
+	free((void *)oldval);
+	sym_clear_all_valid();
+
+	return true;
+}
+
+/*
+ * Find the default value associated to a symbol.
+ * For tristate symbol handle the modules=n case
+ * in which case "m" becomes "y".
+ * If the symbol does not have any default then fallback
+ * to the fixed default values.
+ */
+const char *sym_get_string_default(struct symbol *sym)
+{
+	struct property *prop;
+	struct symbol *ds;
+	const char *str;
+	tristate val;
+
+	sym_calc_visibility(sym);
+	sym_calc_value(modules_sym);
+	val = symbol_no.curr.tri;
+	str = symbol_empty.curr.val;
+
+	/* If symbol has a default value look it up */
+	prop = sym_get_default_prop(sym);
+	if (prop != NULL) {
+		switch (sym->type) {
+		case S_BOOLEAN:
+		case S_TRISTATE:
+			/* The visibility may limit the value from yes => mod */
+			val = EXPR_AND(expr_calc_value(prop->expr), prop->visible.tri);
+			break;
+		default:
+			/*
+			 * The following fails to handle the situation
+			 * where a default value is further limited by
+			 * the valid range.
+			 */
+			ds = prop_get_symbol(prop);
+			if (ds != NULL) {
+				sym_calc_value(ds);
+				str = (const char *)ds->curr.val;
+			}
+		}
+	}
+
+	/* Handle select statements */
+	val = EXPR_OR(val, sym->rev_dep.tri);
+
+	/* transpose mod to yes if modules are not enabled */
+	if (val == mod)
+		if (!sym_is_choice_value(sym) && modules_sym->curr.tri == no)
+			val = yes;
+
+	/* transpose mod to yes if type is bool */
+	if (sym->type == S_BOOLEAN && val == mod)
+		val = yes;
+
+	switch (sym->type) {
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		switch (val) {
+		case no: return "n";
+		case mod: return "m";
+		case yes: return "y";
+		}
+	case S_INT:
+	case S_HEX:
+		return str;
+	case S_STRING:
+		return str;
+	case S_OTHER:
+	case S_UNKNOWN:
+		break;
+	}
+	return "";
+}
+
+const char *sym_get_string_value(struct symbol *sym)
+{
+	tristate val;
+
+	switch (sym->type) {
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		val = sym_get_tristate_value(sym);
+		switch (val) {
+		case no:
+			return "n";
+		case mod:
+			sym_calc_value(modules_sym);
+			return (modules_sym->curr.tri == no) ? "n" : "m";
+		case yes:
+			return "y";
+		}
+		break;
+	default:
+		;
+	}
+	return (const char *)sym->curr.val;
+}
+
+bool sym_is_changable(struct symbol *sym)
+{
+	return sym->visible > sym->rev_dep.tri;
+}
+
+static unsigned strhash(const char *s)
+{
+	/* fnv32 hash */
+	unsigned hash = 2166136261U;
+	for (; *s; s++)
+		hash = (hash ^ *s) * 0x01000193;
+	return hash;
+}
+
+struct symbol *sym_lookup(const char *name, int flags)
+{
+	struct symbol *symbol;
+	char *new_name;
+	int hash;
+
+	if (name) {
+		if (name[0] && !name[1]) {
+			switch (name[0]) {
+			case 'y': return &symbol_yes;
+			case 'm': return &symbol_mod;
+			case 'n': return &symbol_no;
+			}
+		}
+		hash = strhash(name) % SYMBOL_HASHSIZE;
+
+		for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
+			if (symbol->name &&
+			    !strcmp(symbol->name, name) &&
+			    (flags ? symbol->flags & flags
+				   : !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
+				return symbol;
+		}
+		new_name = strdup(name);
+	} else {
+		new_name = NULL;
+		hash = 0;
+	}
+
+	symbol = xmalloc(sizeof(*symbol));
+	memset(symbol, 0, sizeof(*symbol));
+	symbol->name = new_name;
+	symbol->type = S_UNKNOWN;
+	symbol->flags |= flags;
+
+	symbol->next = symbol_hash[hash];
+	symbol_hash[hash] = symbol;
+
+	return symbol;
+}
+
+struct symbol *sym_find(const char *name)
+{
+	struct symbol *symbol = NULL;
+	int hash = 0;
+
+	if (!name)
+		return NULL;
+
+	if (name[0] && !name[1]) {
+		switch (name[0]) {
+		case 'y': return &symbol_yes;
+		case 'm': return &symbol_mod;
+		case 'n': return &symbol_no;
+		}
+	}
+	hash = strhash(name) % SYMBOL_HASHSIZE;
+
+	for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
+		if (symbol->name &&
+		    !strcmp(symbol->name, name) &&
+		    !(symbol->flags & SYMBOL_CONST))
+				break;
+	}
+
+	return symbol;
+}
+
+/*
+ * Expand symbol's names embedded in the string given in argument. Symbols'
+ * name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
+ * the empty string.
+ */
+const char *sym_expand_string_value(const char *in)
+{
+	const char *src;
+	char *res;
+	size_t reslen;
+
+	reslen = strlen(in) + 1;
+	res = xmalloc(reslen);
+	res[0] = '\0';
+
+	while ((src = strchr(in, '$'))) {
+		char *p, name[SYMBOL_MAXLENGTH];
+		const char *symval = "";
+		struct symbol *sym;
+		size_t newlen;
+
+		strncat(res, in, src - in);
+		src++;
+
+		p = name;
+		while (isalnum(*src) || *src == '_')
+			*p++ = *src++;
+		*p = '\0';
+
+		sym = sym_find(name);
+		if (sym != NULL) {
+			sym_calc_value(sym);
+			symval = sym_get_string_value(sym);
+		}
+
+		newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
+		if (newlen > reslen) {
+			reslen = newlen;
+			res = realloc(res, reslen);
+		}
+
+		strcat(res, symval);
+		in = src;
+	}
+	strcat(res, in);
+
+	return res;
+}
+
+const char *sym_escape_string_value(const char *in)
+{
+	const char *p;
+	size_t reslen;
+	char *res;
+	size_t l;
+
+	reslen = strlen(in) + strlen("\"\"") + 1;
+
+	p = in;
+	for (;;) {
+		l = strcspn(p, "\"\\");
+		p += l;
+
+		if (p[0] == '\0')
+			break;
+
+		reslen++;
+		p++;
+	}
+
+	res = xmalloc(reslen);
+	res[0] = '\0';
+
+	strcat(res, "\"");
+
+	p = in;
+	for (;;) {
+		l = strcspn(p, "\"\\");
+		strncat(res, p, l);
+		p += l;
+
+		if (p[0] == '\0')
+			break;
+
+		strcat(res, "\\");
+		strncat(res, p++, 1);
+	}
+
+	strcat(res, "\"");
+	return res;
+}
+
+struct sym_match {
+	struct symbol	*sym;
+	off_t		so, eo;
+};
+
+/* Compare matched symbols as thus:
+ * - first, symbols that match exactly
+ * - then, alphabetical sort
+ */
+static int sym_rel_comp(const void *sym1, const void *sym2)
+{
+	const struct sym_match *s1 = sym1;
+	const struct sym_match *s2 = sym2;
+	int exact1, exact2;
+
+	/* Exact match:
+	 * - if matched length on symbol s1 is the length of that symbol,
+	 *   then this symbol should come first;
+	 * - if matched length on symbol s2 is the length of that symbol,
+	 *   then this symbol should come first.
+	 * Note: since the search can be a regexp, both symbols may match
+	 * exactly; if this is the case, we can't decide which comes first,
+	 * and we fallback to sorting alphabetically.
+	 */
+	exact1 = (s1->eo - s1->so) == strlen(s1->sym->name);
+	exact2 = (s2->eo - s2->so) == strlen(s2->sym->name);
+	if (exact1 && !exact2)
+		return -1;
+	if (!exact1 && exact2)
+		return 1;
+
+	/* As a fallback, sort symbols alphabetically */
+	return strcmp(s1->sym->name, s2->sym->name);
+}
+
+struct symbol **sym_re_search(const char *pattern)
+{
+	struct symbol *sym, **sym_arr = NULL;
+	struct sym_match *sym_match_arr = NULL;
+	int i, cnt, size;
+	regex_t re;
+	regmatch_t match[1];
+
+	cnt = size = 0;
+	/* Skip if empty */
+	if (strlen(pattern) == 0)
+		return NULL;
+	if (regcomp(&re, pattern, REG_EXTENDED|REG_ICASE))
+		return NULL;
+
+	for_all_symbols(i, sym) {
+		if (sym->flags & SYMBOL_CONST || !sym->name)
+			continue;
+		if (regexec(&re, sym->name, 1, match, 0))
+			continue;
+		if (cnt >= size) {
+			void *tmp;
+			size += 16;
+			tmp = realloc(sym_match_arr, size * sizeof(struct sym_match));
+			if (!tmp)
+				goto sym_re_search_free;
+			sym_match_arr = tmp;
+		}
+		sym_calc_value(sym);
+		/* As regexec returned 0, we know we have a match, so
+		 * we can use match[0].rm_[se]o without further checks
+		 */
+		sym_match_arr[cnt].so = match[0].rm_so;
+		sym_match_arr[cnt].eo = match[0].rm_eo;
+		sym_match_arr[cnt++].sym = sym;
+	}
+	if (sym_match_arr) {
+		qsort(sym_match_arr, cnt, sizeof(struct sym_match), sym_rel_comp);
+		sym_arr = malloc((cnt+1) * sizeof(struct symbol));
+		if (!sym_arr)
+			goto sym_re_search_free;
+		for (i = 0; i < cnt; i++)
+			sym_arr[i] = sym_match_arr[i].sym;
+		sym_arr[cnt] = NULL;
+	}
+sym_re_search_free:
+	/* sym_match_arr can be NULL if no match, but free(NULL) is OK */
+	free(sym_match_arr);
+	regfree(&re);
+
+	return sym_arr;
+}
+
+/*
+ * When we check for recursive dependencies we use a stack to save
+ * current state so we can print out relevant info to user.
+ * The entries are located on the call stack so no need to free memory.
+ * Note insert() remove() must always match to properly clear the stack.
+ */
+static struct dep_stack {
+	struct dep_stack *prev, *next;
+	struct symbol *sym;
+	struct property *prop;
+	struct expr *expr;
+} *check_top;
+
+static void dep_stack_insert(struct dep_stack *stack, struct symbol *sym)
+{
+	memset(stack, 0, sizeof(*stack));
+	if (check_top)
+		check_top->next = stack;
+	stack->prev = check_top;
+	stack->sym = sym;
+	check_top = stack;
+}
+
+static void dep_stack_remove(void)
+{
+	check_top = check_top->prev;
+	if (check_top)
+		check_top->next = NULL;
+}
+
+/*
+ * Called when we have detected a recursive dependency.
+ * check_top point to the top of the stact so we use
+ * the ->prev pointer to locate the bottom of the stack.
+ */
+static void sym_check_print_recursive(struct symbol *last_sym)
+{
+	struct dep_stack *stack;
+	struct symbol *sym, *next_sym;
+	struct menu *menu = NULL;
+	struct property *prop;
+	struct dep_stack cv_stack;
+
+	if (sym_is_choice_value(last_sym)) {
+		dep_stack_insert(&cv_stack, last_sym);
+		last_sym = prop_get_symbol(sym_get_choice_prop(last_sym));
+	}
+
+	for (stack = check_top; stack != NULL; stack = stack->prev)
+		if (stack->sym == last_sym)
+			break;
+	if (!stack) {
+		fprintf(stderr, "unexpected recursive dependency error\n");
+		return;
+	}
+
+	for (; stack; stack = stack->next) {
+		sym = stack->sym;
+		next_sym = stack->next ? stack->next->sym : last_sym;
+		prop = stack->prop;
+		if (prop == NULL)
+			prop = stack->sym->prop;
+
+		/* for choice values find the menu entry (used below) */
+		if (sym_is_choice(sym) || sym_is_choice_value(sym)) {
+			for (prop = sym->prop; prop; prop = prop->next) {
+				menu = prop->menu;
+				if (prop->menu)
+					break;
+			}
+		}
+		if (stack->sym == last_sym)
+			fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
+				prop->file->name, prop->lineno);
+		if (stack->expr) {
+			fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
+				prop->file->name, prop->lineno,
+				sym->name ? sym->name : "<choice>",
+				prop_get_type_name(prop->type),
+				next_sym->name ? next_sym->name : "<choice>");
+		} else if (stack->prop) {
+			fprintf(stderr, "%s:%d:\tsymbol %s depends on %s\n",
+				prop->file->name, prop->lineno,
+				sym->name ? sym->name : "<choice>",
+				next_sym->name ? next_sym->name : "<choice>");
+		} else if (sym_is_choice(sym)) {
+			fprintf(stderr, "%s:%d:\tchoice %s contains symbol %s\n",
+				menu->file->name, menu->lineno,
+				sym->name ? sym->name : "<choice>",
+				next_sym->name ? next_sym->name : "<choice>");
+		} else if (sym_is_choice_value(sym)) {
+			fprintf(stderr, "%s:%d:\tsymbol %s is part of choice %s\n",
+				menu->file->name, menu->lineno,
+				sym->name ? sym->name : "<choice>",
+				next_sym->name ? next_sym->name : "<choice>");
+		} else {
+			fprintf(stderr, "%s:%d:\tsymbol %s is selected by %s\n",
+				prop->file->name, prop->lineno,
+				sym->name ? sym->name : "<choice>",
+				next_sym->name ? next_sym->name : "<choice>");
+		}
+	}
+
+	if (check_top == &cv_stack)
+		dep_stack_remove();
+}
+
+static struct symbol *sym_check_expr_deps(struct expr *e)
+{
+	struct symbol *sym;
+
+	if (!e)
+		return NULL;
+	switch (e->type) {
+	case E_OR:
+	case E_AND:
+		sym = sym_check_expr_deps(e->left.expr);
+		if (sym)
+			return sym;
+		return sym_check_expr_deps(e->right.expr);
+	case E_NOT:
+		return sym_check_expr_deps(e->left.expr);
+	case E_EQUAL:
+	case E_UNEQUAL:
+		sym = sym_check_deps(e->left.sym);
+		if (sym)
+			return sym;
+		return sym_check_deps(e->right.sym);
+	case E_SYMBOL:
+		return sym_check_deps(e->left.sym);
+	default:
+		break;
+	}
+	printf("Oops! How to check %d?\n", e->type);
+	return NULL;
+}
+
+/* return NULL when dependencies are OK */
+static struct symbol *sym_check_sym_deps(struct symbol *sym)
+{
+	struct symbol *sym2;
+	struct property *prop;
+	struct dep_stack stack;
+
+	dep_stack_insert(&stack, sym);
+
+	sym2 = sym_check_expr_deps(sym->rev_dep.expr);
+	if (sym2)
+		goto out;
+
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->type == P_CHOICE || prop->type == P_SELECT)
+			continue;
+		stack.prop = prop;
+		sym2 = sym_check_expr_deps(prop->visible.expr);
+		if (sym2)
+			break;
+		if (prop->type != P_DEFAULT || sym_is_choice(sym))
+			continue;
+		stack.expr = prop->expr;
+		sym2 = sym_check_expr_deps(prop->expr);
+		if (sym2)
+			break;
+		stack.expr = NULL;
+	}
+
+out:
+	dep_stack_remove();
+
+	return sym2;
+}
+
+static struct symbol *sym_check_choice_deps(struct symbol *choice)
+{
+	struct symbol *sym, *sym2;
+	struct property *prop;
+	struct expr *e;
+	struct dep_stack stack;
+
+	dep_stack_insert(&stack, choice);
+
+	prop = sym_get_choice_prop(choice);
+	expr_list_for_each_sym(prop->expr, e, sym)
+		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
+
+	choice->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
+	sym2 = sym_check_sym_deps(choice);
+	choice->flags &= ~SYMBOL_CHECK;
+	if (sym2)
+		goto out;
+
+	expr_list_for_each_sym(prop->expr, e, sym) {
+		sym2 = sym_check_sym_deps(sym);
+		if (sym2)
+			break;
+	}
+out:
+	expr_list_for_each_sym(prop->expr, e, sym)
+		sym->flags &= ~SYMBOL_CHECK;
+
+	if (sym2 && sym_is_choice_value(sym2) &&
+	    prop_get_symbol(sym_get_choice_prop(sym2)) == choice)
+		sym2 = choice;
+
+	dep_stack_remove();
+
+	return sym2;
+}
+
+struct symbol *sym_check_deps(struct symbol *sym)
+{
+	struct symbol *sym2;
+	struct property *prop;
+
+	if (sym->flags & SYMBOL_CHECK) {
+		sym_check_print_recursive(sym);
+		return sym;
+	}
+	if (sym->flags & SYMBOL_CHECKED)
+		return NULL;
+
+	if (sym_is_choice_value(sym)) {
+		struct dep_stack stack;
+
+		/* for choice groups start the check with main choice symbol */
+		dep_stack_insert(&stack, sym);
+		prop = sym_get_choice_prop(sym);
+		sym2 = sym_check_deps(prop_get_symbol(prop));
+		dep_stack_remove();
+	} else if (sym_is_choice(sym)) {
+		sym2 = sym_check_choice_deps(sym);
+	} else {
+		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
+		sym2 = sym_check_sym_deps(sym);
+		sym->flags &= ~SYMBOL_CHECK;
+	}
+
+	if (sym2 && sym2 == sym)
+		sym2 = NULL;
+
+	return sym2;
+}
+
+struct property *prop_alloc(enum prop_type type, struct symbol *sym)
+{
+	struct property *prop;
+	struct property **propp;
+
+	prop = xmalloc(sizeof(*prop));
+	memset(prop, 0, sizeof(*prop));
+	prop->type = type;
+	prop->sym = sym;
+	prop->file = current_file;
+	prop->lineno = zconf_lineno();
+
+	/* append property to the prop list of symbol */
+	if (sym) {
+		for (propp = &sym->prop; *propp; propp = &(*propp)->next)
+			;
+		*propp = prop;
+	}
+
+	return prop;
+}
+
+struct symbol *prop_get_symbol(struct property *prop)
+{
+	if (prop->expr && (prop->expr->type == E_SYMBOL ||
+			   prop->expr->type == E_LIST))
+		return prop->expr->left.sym;
+	return NULL;
+}
+
+const char *prop_get_type_name(enum prop_type type)
+{
+	switch (type) {
+	case P_PROMPT:
+		return "prompt";
+	case P_ENV:
+		return "env";
+	case P_COMMENT:
+		return "comment";
+	case P_MENU:
+		return "menu";
+	case P_DEFAULT:
+		return "default";
+	case P_CHOICE:
+		return "choice";
+	case P_SELECT:
+		return "select";
+	case P_RANGE:
+		return "range";
+	case P_SYMBOL:
+		return "symbol";
+	case P_UNKNOWN:
+		break;
+	}
+	return "unknown";
+}
+
+static void prop_add_env(const char *env)
+{
+	struct symbol *sym, *sym2;
+	struct property *prop;
+	char *p;
+
+	sym = current_entry->sym;
+	sym->flags |= SYMBOL_AUTO;
+	for_all_properties(sym, prop, P_ENV) {
+		sym2 = prop_get_symbol(prop);
+		if (strcmp(sym2->name, env))
+			menu_warn(current_entry, "redefining environment symbol from %s",
+				  sym2->name);
+		return;
+	}
+
+	prop = prop_alloc(P_ENV, sym);
+	prop->expr = expr_alloc_symbol(sym_lookup(env, SYMBOL_CONST));
+
+	sym_env_list = expr_alloc_one(E_LIST, sym_env_list);
+	sym_env_list->right.sym = sym;
+
+	p = getenv(env);
+	if (p)
+		sym_add_default(sym, p);
+	else
+		menu_warn(current_entry, "environment variable %s undefined", env);
+}
diff --git a/scripts/config/util.c b/scripts/config/util.c
new file mode 100644
index 0000000..94f9c83
--- /dev/null
+++ b/scripts/config/util.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
+ * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include "lkc.h"
+
+/* file already present in list? If not add it */
+struct file *file_lookup(const char *name)
+{
+	struct file *file;
+	const char *file_name = sym_expand_string_value(name);
+
+	for (file = file_list; file; file = file->next) {
+		if (!strcmp(name, file->name)) {
+			free((void *)file_name);
+			return file;
+		}
+	}
+
+	file = xmalloc(sizeof(*file));
+	memset(file, 0, sizeof(*file));
+	file->name = file_name;
+	file->next = file_list;
+	file_list = file;
+	return file;
+}
+
+/* write a dependency file as used by kbuild to track dependencies */
+int file_write_dep(const char *name)
+{
+	struct symbol *sym, *env_sym;
+	struct expr *e;
+	struct file *file;
+	FILE *out;
+
+	if (!name)
+		name = ".kconfig.d";
+	out = fopen("..config.tmp", "w");
+	if (!out)
+		return 1;
+	fprintf(out, "deps_config := \\\n");
+	for (file = file_list; file; file = file->next) {
+		if (file->next)
+			fprintf(out, "\t%s \\\n", file->name);
+		else
+			fprintf(out, "\t%s\n", file->name);
+	}
+	fprintf(out, "\n%s: \\\n"
+		     "\t$(deps_config)\n\n", conf_get_autoconfig_name());
+
+	expr_list_for_each_sym(sym_env_list, e, sym) {
+		struct property *prop;
+		const char *value;
+
+		prop = sym_get_env_prop(sym);
+		env_sym = prop_get_symbol(prop);
+		if (!env_sym)
+			continue;
+		value = getenv(env_sym->name);
+		if (!value)
+			value = "";
+		fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
+		fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
+		fprintf(out, "endif\n");
+	}
+
+	fprintf(out, "\n$(deps_config): ;\n");
+	fclose(out);
+	rename("..config.tmp", name);
+	return 0;
+}
+
+
+/* Allocate initial growable string */
+struct gstr str_new(void)
+{
+	struct gstr gs;
+	gs.s = xmalloc(sizeof(char) * 64);
+	gs.len = 64;
+	gs.max_width = 0;
+	strcpy(gs.s, "\0");
+	return gs;
+}
+
+/* Allocate and assign growable string */
+struct gstr str_assign(const char *s)
+{
+	struct gstr gs;
+	gs.s = strdup(s);
+	gs.len = strlen(s) + 1;
+	gs.max_width = 0;
+	return gs;
+}
+
+/* Free storage for growable string */
+void str_free(struct gstr *gs)
+{
+	if (gs->s)
+		free(gs->s);
+	gs->s = NULL;
+	gs->len = 0;
+}
+
+/* Append to growable string */
+void str_append(struct gstr *gs, const char *s)
+{
+	size_t l;
+	if (s) {
+		l = strlen(gs->s) + strlen(s) + 1;
+		if (l > gs->len) {
+			gs->s   = realloc(gs->s, l);
+			gs->len = l;
+		}
+		strcat(gs->s, s);
+	}
+}
+
+/* Append printf formatted string to growable string */
+void str_printf(struct gstr *gs, const char *fmt, ...)
+{
+	va_list ap;
+	char s[10000]; /* big enough... */
+	va_start(ap, fmt);
+	vsnprintf(s, sizeof(s), fmt, ap);
+	str_append(gs, s);
+	va_end(ap);
+}
+
+/* Retrieve value of growable string */
+const char *str_get(struct gstr *gs)
+{
+	return gs->s;
+}
+
+void *xmalloc(size_t size)
+{
+	void *p = malloc(size);
+	if (p)
+		return p;
+	fprintf(stderr, "Out of memory.\n");
+	exit(1);
+}
+
+void *xcalloc(size_t nmemb, size_t size)
+{
+	void *p = calloc(nmemb, size);
+	if (p)
+		return p;
+	fprintf(stderr, "Out of memory.\n");
+	exit(1);
+}
diff --git a/scripts/config/zconf.gperf b/scripts/config/zconf.gperf
new file mode 100644
index 0000000..0f1025a
--- /dev/null
+++ b/scripts/config/zconf.gperf
@@ -0,0 +1,48 @@
+%language=ANSI-C
+%define hash-function-name kconf_id_hash
+%define lookup-function-name kconf_id_lookup
+%define string-pool-name kconf_id_strings
+%compare-strncmp
+%enum
+%pic
+%struct-type
+
+struct kconf_id;
+
+
+%%
+mainmenu,	T_MAINMENU,	TF_COMMAND
+menu,		T_MENU,		TF_COMMAND
+endmenu,	T_ENDMENU,	TF_COMMAND
+source,		T_SOURCE,	TF_COMMAND
+choice,		T_CHOICE,	TF_COMMAND
+endchoice,	T_ENDCHOICE,	TF_COMMAND
+comment,	T_COMMENT,	TF_COMMAND
+config,		T_CONFIG,	TF_COMMAND
+menuconfig,	T_MENUCONFIG,	TF_COMMAND
+help,		T_HELP,		TF_COMMAND
+if,		T_IF,		TF_COMMAND|TF_PARAM
+endif,		T_ENDIF,	TF_COMMAND
+depends,	T_DEPENDS,	TF_COMMAND
+optional,	T_OPTIONAL,	TF_COMMAND
+default,	T_DEFAULT,	TF_COMMAND, S_UNKNOWN
+prompt,		T_PROMPT,	TF_COMMAND
+tristate,	T_TYPE,		TF_COMMAND, S_TRISTATE
+def_tristate,	T_DEFAULT,	TF_COMMAND, S_TRISTATE
+bool,		T_TYPE,		TF_COMMAND, S_BOOLEAN
+boolean,	T_TYPE,		TF_COMMAND, S_BOOLEAN
+def_bool,	T_DEFAULT,	TF_COMMAND, S_BOOLEAN
+int,		T_TYPE,		TF_COMMAND, S_INT
+hex,		T_TYPE,		TF_COMMAND, S_HEX
+string,		T_TYPE,		TF_COMMAND, S_STRING
+select,		T_SELECT,	TF_COMMAND
+range,		T_RANGE,	TF_COMMAND
+visible,	T_VISIBLE,	TF_COMMAND
+option,		T_OPTION,	TF_COMMAND
+on,		T_ON,		TF_PARAM
+modules,	T_OPT_MODULES,	TF_OPTION
+defconfig_list,	T_OPT_DEFCONFIG_LIST,TF_OPTION
+env,		T_OPT_ENV,	TF_OPTION
+allnoconfig_y,	T_OPT_ALLNOCONFIG_Y,TF_OPTION
+reset,		T_RESET,	TF_COMMAND
+%%
diff --git a/scripts/config/zconf.hash.c_shipped b/scripts/config/zconf.hash.c_shipped
new file mode 100644
index 0000000..73b5c8c
--- /dev/null
+++ b/scripts/config/zconf.hash.c_shipped
@@ -0,0 +1,242 @@
+/* ANSI-C code produced by gperf version 3.0.3 */
+/* Command-line: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/gperf  */
+/* Computed positions: -k'1,3' */
+
+#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
+      && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
+      && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
+      && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
+      && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
+      && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
+      && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
+      && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
+      && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
+      && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
+      && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
+      && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
+      && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
+      && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
+      && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
+      && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
+      && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
+      && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
+      && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
+      && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
+      && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
+      && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
+      && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126))
+/* The character set is not based on ISO-646.  */
+#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
+#endif
+
+struct kconf_id;
+/* maximum key range = 47, duplicates = 0 */
+
+#ifdef __GNUC__
+__inline
+#else
+#ifdef __cplusplus
+inline
+#endif
+#endif
+static unsigned int
+kconf_id_hash (register const char *str, register unsigned int len)
+{
+  static unsigned char asso_values[] =
+    {
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 20, 40,  5,
+       0,  0,  5, 49,  5, 20, 49, 49,  5, 20,
+       5,  0, 35, 49,  0, 15,  0, 10, 15, 49,
+      25, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 49
+    };
+  register unsigned int hval = len;
+
+  switch (hval)
+    {
+      default:
+        hval += asso_values[(unsigned char)str[2]];
+      /*FALLTHROUGH*/
+      case 2:
+      case 1:
+        hval += asso_values[(unsigned char)str[0]];
+        break;
+    }
+  return hval;
+}
+
+struct kconf_id_strings_t
+  {
+    char kconf_id_strings_str2[sizeof("on")];
+    char kconf_id_strings_str5[sizeof("endif")];
+    char kconf_id_strings_str6[sizeof("option")];
+    char kconf_id_strings_str7[sizeof("endmenu")];
+    char kconf_id_strings_str8[sizeof("optional")];
+    char kconf_id_strings_str9[sizeof("endchoice")];
+    char kconf_id_strings_str10[sizeof("range")];
+    char kconf_id_strings_str11[sizeof("choice")];
+    char kconf_id_strings_str12[sizeof("default")];
+    char kconf_id_strings_str13[sizeof("def_bool")];
+    char kconf_id_strings_str14[sizeof("help")];
+    char kconf_id_strings_str16[sizeof("config")];
+    char kconf_id_strings_str17[sizeof("def_tristate")];
+    char kconf_id_strings_str18[sizeof("env")];
+    char kconf_id_strings_str19[sizeof("defconfig_list")];
+    char kconf_id_strings_str20[sizeof("reset")];
+    char kconf_id_strings_str21[sizeof("string")];
+    char kconf_id_strings_str22[sizeof("if")];
+    char kconf_id_strings_str23[sizeof("int")];
+    char kconf_id_strings_str26[sizeof("select")];
+    char kconf_id_strings_str27[sizeof("modules")];
+    char kconf_id_strings_str28[sizeof("tristate")];
+    char kconf_id_strings_str29[sizeof("menu")];
+    char kconf_id_strings_str31[sizeof("source")];
+    char kconf_id_strings_str32[sizeof("comment")];
+    char kconf_id_strings_str33[sizeof("hex")];
+    char kconf_id_strings_str35[sizeof("menuconfig")];
+    char kconf_id_strings_str37[sizeof("visible")];
+    char kconf_id_strings_str38[sizeof("allnoconfig_y")];
+    char kconf_id_strings_str41[sizeof("prompt")];
+    char kconf_id_strings_str42[sizeof("depends")];
+    char kconf_id_strings_str44[sizeof("bool")];
+    char kconf_id_strings_str47[sizeof("boolean")];
+    char kconf_id_strings_str48[sizeof("mainmenu")];
+  };
+static struct kconf_id_strings_t kconf_id_strings_contents =
+  {
+    "on",
+    "endif",
+    "option",
+    "endmenu",
+    "optional",
+    "endchoice",
+    "range",
+    "choice",
+    "default",
+    "def_bool",
+    "help",
+    "config",
+    "def_tristate",
+    "env",
+    "defconfig_list",
+    "reset",
+    "string",
+    "if",
+    "int",
+    "select",
+    "modules",
+    "tristate",
+    "menu",
+    "source",
+    "comment",
+    "hex",
+    "menuconfig",
+    "visible",
+    "allnoconfig_y",
+    "prompt",
+    "depends",
+    "bool",
+    "boolean",
+    "mainmenu"
+  };
+#define kconf_id_strings ((const char *) &kconf_id_strings_contents)
+struct kconf_id *
+kconf_id_lookup (register const char *str, register unsigned int len)
+{
+  enum
+    {
+      TOTAL_KEYWORDS = 34,
+      MIN_WORD_LENGTH = 2,
+      MAX_WORD_LENGTH = 14,
+      MIN_HASH_VALUE = 2,
+      MAX_HASH_VALUE = 48
+    };
+
+  static struct kconf_id wordlist[] =
+    {
+      {-1}, {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str2),		T_ON,		TF_PARAM},
+      {-1}, {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str5),		T_ENDIF,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str6),		T_OPTION,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str7),	T_ENDMENU,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str8),	T_OPTIONAL,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str9),	T_ENDCHOICE,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str10),		T_RANGE,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str11),		T_CHOICE,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str12),	T_DEFAULT,	TF_COMMAND, S_UNKNOWN},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str13),	T_DEFAULT,	TF_COMMAND, S_BOOLEAN},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str14),		T_HELP,		TF_COMMAND},
+      {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str16),		T_CONFIG,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str17),	T_DEFAULT,	TF_COMMAND, S_TRISTATE},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str18),		T_OPT_ENV,	TF_OPTION},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str19),	T_OPT_DEFCONFIG_LIST,TF_OPTION},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str20),		T_RESET,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str21),		T_TYPE,		TF_COMMAND, S_STRING},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str22),		T_IF,		TF_COMMAND|TF_PARAM},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str23),		T_TYPE,		TF_COMMAND, S_INT},
+      {-1}, {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str26),		T_SELECT,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str27),	T_OPT_MODULES,	TF_OPTION},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str28),	T_TYPE,		TF_COMMAND, S_TRISTATE},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str29),		T_MENU,		TF_COMMAND},
+      {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str31),		T_SOURCE,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str32),	T_COMMENT,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str33),		T_TYPE,		TF_COMMAND, S_HEX},
+      {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str35),	T_MENUCONFIG,	TF_COMMAND},
+      {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str37),	T_VISIBLE,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str38),	T_OPT_ALLNOCONFIG_Y,TF_OPTION},
+      {-1}, {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str41),		T_PROMPT,	TF_COMMAND},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str42),	T_DEPENDS,	TF_COMMAND},
+      {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str44),		T_TYPE,		TF_COMMAND, S_BOOLEAN},
+      {-1}, {-1},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str47),	T_TYPE,		TF_COMMAND, S_BOOLEAN},
+      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str48),	T_MAINMENU,	TF_COMMAND}
+    };
+
+  if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
+    {
+      unsigned int key = kconf_id_hash (str, len);
+
+      if (key <= MAX_HASH_VALUE)
+        {
+          register int o = wordlist[key].name;
+          if (o >= 0)
+            {
+              register const char *s = o + kconf_id_strings;
+
+              if (*str == *s && !strncmp (str + 1, s + 1, len - 1) && s[len] == '\0')
+                return &wordlist[key];
+            }
+        }
+    }
+  return 0;
+}
+
diff --git a/scripts/config/zconf.l b/scripts/config/zconf.l
new file mode 100644
index 0000000..7c7baef
--- /dev/null
+++ b/scripts/config/zconf.l
@@ -0,0 +1,416 @@
+%option nostdinit noyywrap never-interactive full ecs
+%option 8bit nodefault perf-report perf-report
+%option noinput
+%x COMMAND HELP STRING PARAM
+%{
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <glob.h>
+#include <libgen.h>
+
+#include "lkc.h"
+
+#define START_STRSIZE	16
+
+static struct {
+	struct file *file;
+	int lineno;
+} current_pos;
+
+static char *text;
+static int text_size, text_asize;
+
+struct buffer {
+	struct buffer *parent;
+	YY_BUFFER_STATE state;
+};
+
+struct buffer *current_buf;
+
+static int last_ts, first_ts;
+
+static void zconf_endhelp(void);
+static void zconf_endfile(void);
+
+static void new_string(void)
+{
+	text = xmalloc(START_STRSIZE);
+	text_asize = START_STRSIZE;
+	text_size = 0;
+	*text = 0;
+}
+
+static void append_string(const char *str, int size)
+{
+	int new_size = text_size + size + 1;
+	if (new_size > text_asize) {
+		new_size += START_STRSIZE - 1;
+		new_size &= -START_STRSIZE;
+		text = realloc(text, new_size);
+		text_asize = new_size;
+	}
+	memcpy(text + text_size, str, size);
+	text_size += size;
+	text[text_size] = 0;
+}
+
+static void alloc_string(const char *str, int size)
+{
+	text = xmalloc(size + 1);
+	memcpy(text, str, size);
+	text[size] = 0;
+}
+%}
+
+n	[A-Za-z0-9_]
+
+%%
+	int str = 0;
+	int ts, i;
+
+[ \t]*#.*\n	|
+[ \t]*\n	{
+	current_file->lineno++;
+	return T_EOL;
+}
+[ \t]*#.*
+
+
+[ \t]+	{
+	BEGIN(COMMAND);
+}
+
+.	{
+	unput(yytext[0]);
+	BEGIN(COMMAND);
+}
+
+
+<COMMAND>{
+	{n}+	{
+		const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
+		BEGIN(PARAM);
+		current_pos.file = current_file;
+		current_pos.lineno = current_file->lineno;
+		if (id && id->flags & TF_COMMAND) {
+			zconflval.id = id;
+			return id->token;
+		}
+		alloc_string(yytext, yyleng);
+		zconflval.string = text;
+		return T_WORD;
+	}
+	.
+	\n	{
+		BEGIN(INITIAL);
+		current_file->lineno++;
+		return T_EOL;
+	}
+}
+
+<PARAM>{
+	"&&"	return T_AND;
+	"||"	return T_OR;
+	"("	return T_OPEN_PAREN;
+	")"	return T_CLOSE_PAREN;
+	"!"	return T_NOT;
+	"="	return T_EQUAL;
+	"!="	return T_UNEQUAL;
+	\"|\'	{
+		str = yytext[0];
+		new_string();
+		BEGIN(STRING);
+	}
+	\n	BEGIN(INITIAL); current_file->lineno++; return T_EOL;
+	---	/* ignore */
+	({n}|[-/.])+	{
+		const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
+		if (id && id->flags & TF_PARAM) {
+			zconflval.id = id;
+			return id->token;
+		}
+		alloc_string(yytext, yyleng);
+		zconflval.string = text;
+		return T_WORD;
+	}
+	#.*	/* comment */
+	\\\n	current_file->lineno++;
+	.
+	<<EOF>> {
+		BEGIN(INITIAL);
+	}
+}
+
+<STRING>{
+	[^'"\\\n]+/\n	{
+		append_string(yytext, yyleng);
+		zconflval.string = text;
+		return T_WORD_QUOTE;
+	}
+	[^'"\\\n]+	{
+		append_string(yytext, yyleng);
+	}
+	\\.?/\n	{
+		append_string(yytext + 1, yyleng - 1);
+		zconflval.string = text;
+		return T_WORD_QUOTE;
+	}
+	\\.?	{
+		append_string(yytext + 1, yyleng - 1);
+	}
+	\'|\"	{
+		if (str == yytext[0]) {
+			BEGIN(PARAM);
+			zconflval.string = text;
+			return T_WORD_QUOTE;
+		} else
+			append_string(yytext, 1);
+	}
+	\n	{
+		printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
+		current_file->lineno++;
+		BEGIN(INITIAL);
+		return T_EOL;
+	}
+	<<EOF>>	{
+		BEGIN(INITIAL);
+	}
+}
+
+<HELP>{
+	[ \t]+	{
+		ts = 0;
+		for (i = 0; i < yyleng; i++) {
+			if (yytext[i] == '\t')
+				ts = (ts & ~7) + 8;
+			else
+				ts++;
+		}
+		last_ts = ts;
+		if (first_ts) {
+			if (ts < first_ts) {
+				zconf_endhelp();
+				return T_HELPTEXT;
+			}
+			ts -= first_ts;
+			while (ts > 8) {
+				append_string("        ", 8);
+				ts -= 8;
+			}
+			append_string("        ", ts);
+		}
+	}
+	[ \t]*\n/[^ \t\n] {
+		current_file->lineno++;
+		zconf_endhelp();
+		return T_HELPTEXT;
+	}
+	[ \t]*\n	{
+		current_file->lineno++;
+		append_string("\n", 1);
+	}
+	[^ \t\n].* {
+		while (yyleng) {
+			if ((yytext[yyleng-1] != ' ') && (yytext[yyleng-1] != '\t'))
+				break;
+			yyleng--;
+		}
+		append_string(yytext, yyleng);
+		if (!first_ts)
+			first_ts = last_ts;
+	}
+	<<EOF>>	{
+		zconf_endhelp();
+		return T_HELPTEXT;
+	}
+}
+
+<<EOF>>	{
+	if (current_file) {
+		zconf_endfile();
+		return T_EOL;
+	}
+	fclose(yyin);
+	yyterminate();
+}
+
+%%
+void zconf_starthelp(void)
+{
+	new_string();
+	last_ts = first_ts = 0;
+	BEGIN(HELP);
+}
+
+static void zconf_endhelp(void)
+{
+	zconflval.string = text;
+	BEGIN(INITIAL);
+}
+
+
+/*
+ * Try to open specified file with following names:
+ * ./name
+ * $(srctree)/name
+ * The latter is used when srctree is separate from objtree
+ * when compiling the kernel.
+ * Return NULL if file is not found.
+ */
+FILE *zconf_fopen(const char *name)
+{
+	char *env, fullname[PATH_MAX+1];
+	FILE *f;
+
+	f = fopen(name, "r");
+	if (!f && name != NULL && name[0] != '/') {
+		env = getenv(SRCTREE);
+		if (env) {
+			sprintf(fullname, "%s/%s", env, name);
+			f = fopen(fullname, "r");
+		}
+	}
+	return f;
+}
+
+void zconf_initscan(const char *name)
+{
+	yyin = zconf_fopen(name);
+	if (!yyin) {
+		printf("can't find file %s\n", name);
+		exit(1);
+	}
+
+	current_buf = xmalloc(sizeof(*current_buf));
+	memset(current_buf, 0, sizeof(*current_buf));
+
+	current_file = file_lookup(name);
+	current_file->lineno = 1;
+}
+
+static void __zconf_nextfile(const char *name)
+{
+	struct file *iter;
+	struct file *file = file_lookup(name);
+	struct buffer *buf = xmalloc(sizeof(*buf));
+	memset(buf, 0, sizeof(*buf));
+
+	current_buf->state = YY_CURRENT_BUFFER;
+	yyin = zconf_fopen(file->name);
+	if (!yyin) {
+		printf("%s:%d: can't open file \"%s\"\n",
+		    zconf_curname(), zconf_lineno(), file->name);
+		exit(1);
+	}
+	yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
+	buf->parent = current_buf;
+	current_buf = buf;
+
+	for (iter = current_file->parent; iter; iter = iter->parent ) {
+		if (!strcmp(current_file->name,iter->name) ) {
+			printf("%s:%d: recursive inclusion detected. "
+			       "Inclusion path:\n  current file : '%s'\n",
+			       zconf_curname(), zconf_lineno(),
+			       zconf_curname());
+			iter = current_file->parent;
+			while (iter && \
+			       strcmp(iter->name,current_file->name)) {
+				printf("  included from: '%s:%d'\n",
+				       iter->name, iter->lineno-1);
+				iter = iter->parent;
+			}
+			if (iter)
+				printf("  included from: '%s:%d'\n",
+				       iter->name, iter->lineno+1);
+			exit(1);
+		}
+	}
+	file->lineno = 1;
+	file->parent = current_file;
+	current_file = file;
+}
+
+void zconf_nextfile(const char *name)
+{
+	glob_t gl;
+	int err;
+	int i;
+	char path[PATH_MAX], *p;
+
+	err = glob(name, GLOB_ERR | GLOB_MARK, NULL, &gl);
+
+	/* ignore wildcard patterns that return no result */
+	if (err == GLOB_NOMATCH && strchr(name, '*')) {
+		err = 0;
+		gl.gl_pathc = 0;
+	}
+
+	if (err == GLOB_NOMATCH) {
+		p = strdup(current_file->name);
+		if (p) {
+			snprintf(path, sizeof(path), "%s/%s", dirname(p), name);
+			err = glob(path, GLOB_ERR | GLOB_MARK, NULL, &gl);
+			free(p);
+		}
+	}
+
+	if (err) {
+		const char *reason = "unknown error";
+
+		switch (err) {
+		case GLOB_NOSPACE:
+			reason = "out of memory";
+			break;
+		case GLOB_ABORTED:
+			reason = "read error";
+			break;
+		case GLOB_NOMATCH:
+			reason = "No files found";
+			break;
+		default:
+			break;
+		}
+
+		printf("%s:%d: glob failed: %s \"%s\"\n", zconf_curname(), zconf_lineno(),
+			reason, name);
+
+		exit(1);
+	}
+
+	for (i = 0; i < gl.gl_pathc; i++)
+		__zconf_nextfile(gl.gl_pathv[i]);
+}
+
+static void zconf_endfile(void)
+{
+	struct buffer *parent;
+
+	current_file = current_file->parent;
+
+	parent = current_buf->parent;
+	if (parent) {
+		fclose(yyin);
+		yy_delete_buffer(YY_CURRENT_BUFFER);
+		yy_switch_to_buffer(parent->state);
+	}
+	free(current_buf);
+	current_buf = parent;
+}
+
+int zconf_lineno(void)
+{
+	return current_pos.lineno;
+}
+
+const char *zconf_curname(void)
+{
+	return current_pos.file ? current_pos.file->name : "<none>";
+}
diff --git a/scripts/config/zconf.lex.c_shipped b/scripts/config/zconf.lex.c_shipped
new file mode 100644
index 0000000..f1d6528
--- /dev/null
+++ b/scripts/config/zconf.lex.c_shipped
@@ -0,0 +1,2474 @@
+
+#line 3 "zconf.lex.c"
+
+#define  YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define yy_create_buffer zconf_create_buffer
+#define yy_delete_buffer zconf_delete_buffer
+#define yy_flex_debug zconf_flex_debug
+#define yy_init_buffer zconf_init_buffer
+#define yy_flush_buffer zconf_flush_buffer
+#define yy_load_buffer_state zconf_load_buffer_state
+#define yy_switch_to_buffer zconf_switch_to_buffer
+#define yyin zconfin
+#define yyleng zconfleng
+#define yylex zconflex
+#define yylineno zconflineno
+#define yyout zconfout
+#define yyrestart zconfrestart
+#define yytext zconftext
+#define yywrap zconfwrap
+#define yyalloc zconfalloc
+#define yyrealloc zconfrealloc
+#define yyfree zconffree
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 37
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with  platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types. 
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t; 
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN               (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN              (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN              (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX               (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX              (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX              (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX              (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX             (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX             (4294967295U)
+#endif
+
+#endif /* ! C99 */
+
+#endif /* ! FLEXINT_H */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else	/* ! __cplusplus */
+
+/* C99 requires __STDC__ to be defined as 1. */
+#if defined (__STDC__)
+
+#define YY_USE_CONST
+
+#endif	/* defined (__STDC__) */
+#endif	/* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index.  If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* Enter a start condition.  This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state.  The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE zconfrestart(zconfin  )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+extern yy_size_t zconfleng;
+
+extern FILE *zconfin, *zconfout;
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+    #define YY_LESS_LINENO(n)
+    
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+	do \
+		{ \
+		/* Undo effects of setting up zconftext. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+		*yy_cp = (yy_hold_char); \
+		YY_RESTORE_YY_MORE_OFFSET \
+		(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+		YY_DO_BEFORE_ACTION; /* set up zconftext again */ \
+		} \
+	while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr)  )
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	yy_size_t yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	yy_size_t yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
+
+    int yy_bs_lineno; /**< The line count. */
+    int yy_bs_column; /**< The column count. */
+    
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
+
+	int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+	/* When an EOF's been seen but there's still some text to process
+	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+	 * shouldn't try reading from the input source any more.  We might
+	 * still have a bunch of tokens to match, though, because of
+	 * possible backing-up.
+	 *
+	 * When we actually see the EOF, we change the status to "new"
+	 * (via zconfrestart()), so that the user can continue scanning by
+	 * just pointing zconfin at a new input file.
+	 */
+#define YY_BUFFER_EOF_PENDING 2
+
+	};
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+                          : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* yy_hold_char holds the character lost when zconftext is formed. */
+static char yy_hold_char;
+static yy_size_t yy_n_chars;		/* number of characters read into yy_ch_buf */
+yy_size_t zconfleng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = (char *) 0;
+static int yy_init = 0;		/* whether we need to initialize */
+static int yy_start = 0;	/* start state number */
+
+/* Flag which is used to allow zconfwrap()'s to do buffer switches
+ * instead of setting up a fresh zconfin.  A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+
+void zconfrestart (FILE *input_file  );
+void zconf_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
+YY_BUFFER_STATE zconf_create_buffer (FILE *file,int size  );
+void zconf_delete_buffer (YY_BUFFER_STATE b  );
+void zconf_flush_buffer (YY_BUFFER_STATE b  );
+void zconfpush_buffer_state (YY_BUFFER_STATE new_buffer  );
+void zconfpop_buffer_state (void );
+
+static void zconfensure_buffer_stack (void );
+static void zconf_load_buffer_state (void );
+static void zconf_init_buffer (YY_BUFFER_STATE b,FILE *file  );
+
+#define YY_FLUSH_BUFFER zconf_flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE zconf_scan_buffer (char *base,yy_size_t size  );
+YY_BUFFER_STATE zconf_scan_string (yyconst char *yy_str  );
+YY_BUFFER_STATE zconf_scan_bytes (yyconst char *bytes,yy_size_t len  );
+
+void *zconfalloc (yy_size_t  );
+void *zconfrealloc (void *,yy_size_t  );
+void zconffree (void *  );
+
+#define yy_new_buffer zconf_create_buffer
+
+#define yy_set_interactive(is_interactive) \
+	{ \
+	if ( ! YY_CURRENT_BUFFER ){ \
+        zconfensure_buffer_stack (); \
+		YY_CURRENT_BUFFER_LVALUE =    \
+            zconf_create_buffer(zconfin,YY_BUF_SIZE ); \
+	} \
+	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+	}
+
+#define yy_set_bol(at_bol) \
+	{ \
+	if ( ! YY_CURRENT_BUFFER ){\
+        zconfensure_buffer_stack (); \
+		YY_CURRENT_BUFFER_LVALUE =    \
+            zconf_create_buffer(zconfin,YY_BUF_SIZE ); \
+	} \
+	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+	}
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define zconfwrap() 1
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+FILE *zconfin = (FILE *) 0, *zconfout = (FILE *) 0;
+
+typedef int yy_state_type;
+
+extern int zconflineno;
+
+int zconflineno = 1;
+
+extern char *zconftext;
+#define yytext_ptr zconftext
+static yyconst flex_int16_t yy_nxt[][17] =
+    {
+    {
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0
+    },
+
+    {
+       11,   12,   13,   14,   12,   12,   15,   12,   12,   12,
+       12,   12,   12,   12,   12,   12,   12
+    },
+
+    {
+       11,   12,   13,   14,   12,   12,   15,   12,   12,   12,
+       12,   12,   12,   12,   12,   12,   12
+    },
+
+    {
+       11,   16,   16,   17,   16,   16,   16,   16,   16,   16,
+       16,   16,   16,   18,   16,   16,   16
+    },
+
+    {
+       11,   16,   16,   17,   16,   16,   16,   16,   16,   16,
+       16,   16,   16,   18,   16,   16,   16
+
+    },
+
+    {
+       11,   19,   20,   21,   19,   19,   19,   19,   19,   19,
+       19,   19,   19,   19,   19,   19,   19
+    },
+
+    {
+       11,   19,   20,   21,   19,   19,   19,   19,   19,   19,
+       19,   19,   19,   19,   19,   19,   19
+    },
+
+    {
+       11,   22,   22,   23,   22,   24,   22,   22,   24,   22,
+       22,   22,   22,   22,   22,   25,   22
+    },
+
+    {
+       11,   22,   22,   23,   22,   24,   22,   22,   24,   22,
+       22,   22,   22,   22,   22,   25,   22
+    },
+
+    {
+       11,   26,   26,   27,   28,   29,   30,   31,   29,   32,
+       33,   34,   35,   35,   36,   37,   38
+
+    },
+
+    {
+       11,   26,   26,   27,   28,   29,   30,   31,   29,   32,
+       33,   34,   35,   35,   36,   37,   38
+    },
+
+    {
+      -11,  -11,  -11,  -11,  -11,  -11,  -11,  -11,  -11,  -11,
+      -11,  -11,  -11,  -11,  -11,  -11,  -11
+    },
+
+    {
+       11,  -12,  -12,  -12,  -12,  -12,  -12,  -12,  -12,  -12,
+      -12,  -12,  -12,  -12,  -12,  -12,  -12
+    },
+
+    {
+       11,  -13,   39,   40,  -13,  -13,   41,  -13,  -13,  -13,
+      -13,  -13,  -13,  -13,  -13,  -13,  -13
+    },
+
+    {
+       11,  -14,  -14,  -14,  -14,  -14,  -14,  -14,  -14,  -14,
+      -14,  -14,  -14,  -14,  -14,  -14,  -14
+
+    },
+
+    {
+       11,   42,   42,   43,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42,   42,   42
+    },
+
+    {
+       11,  -16,  -16,  -16,  -16,  -16,  -16,  -16,  -16,  -16,
+      -16,  -16,  -16,  -16,  -16,  -16,  -16
+    },
+
+    {
+       11,  -17,  -17,  -17,  -17,  -17,  -17,  -17,  -17,  -17,
+      -17,  -17,  -17,  -17,  -17,  -17,  -17
+    },
+
+    {
+       11,  -18,  -18,  -18,  -18,  -18,  -18,  -18,  -18,  -18,
+      -18,  -18,  -18,   44,  -18,  -18,  -18
+    },
+
+    {
+       11,   45,   45,  -19,   45,   45,   45,   45,   45,   45,
+       45,   45,   45,   45,   45,   45,   45
+
+    },
+
+    {
+       11,  -20,   46,   47,  -20,  -20,  -20,  -20,  -20,  -20,
+      -20,  -20,  -20,  -20,  -20,  -20,  -20
+    },
+
+    {
+       11,   48,  -21,  -21,   48,   48,   48,   48,   48,   48,
+       48,   48,   48,   48,   48,   48,   48
+    },
+
+    {
+       11,   49,   49,   50,   49,  -22,   49,   49,  -22,   49,
+       49,   49,   49,   49,   49,  -22,   49
+    },
+
+    {
+       11,  -23,  -23,  -23,  -23,  -23,  -23,  -23,  -23,  -23,
+      -23,  -23,  -23,  -23,  -23,  -23,  -23
+    },
+
+    {
+       11,  -24,  -24,  -24,  -24,  -24,  -24,  -24,  -24,  -24,
+      -24,  -24,  -24,  -24,  -24,  -24,  -24
+
+    },
+
+    {
+       11,   51,   51,   52,   51,   51,   51,   51,   51,   51,
+       51,   51,   51,   51,   51,   51,   51
+    },
+
+    {
+       11,  -26,  -26,  -26,  -26,  -26,  -26,  -26,  -26,  -26,
+      -26,  -26,  -26,  -26,  -26,  -26,  -26
+    },
+
+    {
+       11,  -27,  -27,  -27,  -27,  -27,  -27,  -27,  -27,  -27,
+      -27,  -27,  -27,  -27,  -27,  -27,  -27
+    },
+
+    {
+       11,  -28,  -28,  -28,  -28,  -28,  -28,  -28,  -28,  -28,
+      -28,  -28,  -28,  -28,   53,  -28,  -28
+    },
+
+    {
+       11,  -29,  -29,  -29,  -29,  -29,  -29,  -29,  -29,  -29,
+      -29,  -29,  -29,  -29,  -29,  -29,  -29
+
+    },
+
+    {
+       11,   54,   54,  -30,   54,   54,   54,   54,   54,   54,
+       54,   54,   54,   54,   54,   54,   54
+    },
+
+    {
+       11,  -31,  -31,  -31,  -31,  -31,  -31,   55,  -31,  -31,
+      -31,  -31,  -31,  -31,  -31,  -31,  -31
+    },
+
+    {
+       11,  -32,  -32,  -32,  -32,  -32,  -32,  -32,  -32,  -32,
+      -32,  -32,  -32,  -32,  -32,  -32,  -32
+    },
+
+    {
+       11,  -33,  -33,  -33,  -33,  -33,  -33,  -33,  -33,  -33,
+      -33,  -33,  -33,  -33,  -33,  -33,  -33
+    },
+
+    {
+       11,  -34,  -34,  -34,  -34,  -34,  -34,  -34,  -34,  -34,
+      -34,   56,   57,   57,  -34,  -34,  -34
+
+    },
+
+    {
+       11,  -35,  -35,  -35,  -35,  -35,  -35,  -35,  -35,  -35,
+      -35,   57,   57,   57,  -35,  -35,  -35
+    },
+
+    {
+       11,  -36,  -36,  -36,  -36,  -36,  -36,  -36,  -36,  -36,
+      -36,  -36,  -36,  -36,  -36,  -36,  -36
+    },
+
+    {
+       11,  -37,  -37,   58,  -37,  -37,  -37,  -37,  -37,  -37,
+      -37,  -37,  -37,  -37,  -37,  -37,  -37
+    },
+
+    {
+       11,  -38,  -38,  -38,  -38,  -38,  -38,  -38,  -38,  -38,
+      -38,  -38,  -38,  -38,  -38,  -38,   59
+    },
+
+    {
+       11,  -39,   39,   40,  -39,  -39,   41,  -39,  -39,  -39,
+      -39,  -39,  -39,  -39,  -39,  -39,  -39
+
+    },
+
+    {
+       11,  -40,  -40,  -40,  -40,  -40,  -40,  -40,  -40,  -40,
+      -40,  -40,  -40,  -40,  -40,  -40,  -40
+    },
+
+    {
+       11,   42,   42,   43,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42,   42,   42
+    },
+
+    {
+       11,   42,   42,   43,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42,   42,   42
+    },
+
+    {
+       11,  -43,  -43,  -43,  -43,  -43,  -43,  -43,  -43,  -43,
+      -43,  -43,  -43,  -43,  -43,  -43,  -43
+    },
+
+    {
+       11,  -44,  -44,  -44,  -44,  -44,  -44,  -44,  -44,  -44,
+      -44,  -44,  -44,   44,  -44,  -44,  -44
+
+    },
+
+    {
+       11,   45,   45,  -45,   45,   45,   45,   45,   45,   45,
+       45,   45,   45,   45,   45,   45,   45
+    },
+
+    {
+       11,  -46,   46,   47,  -46,  -46,  -46,  -46,  -46,  -46,
+      -46,  -46,  -46,  -46,  -46,  -46,  -46
+    },
+
+    {
+       11,   48,  -47,  -47,   48,   48,   48,   48,   48,   48,
+       48,   48,   48,   48,   48,   48,   48
+    },
+
+    {
+       11,  -48,  -48,  -48,  -48,  -48,  -48,  -48,  -48,  -48,
+      -48,  -48,  -48,  -48,  -48,  -48,  -48
+    },
+
+    {
+       11,   49,   49,   50,   49,  -49,   49,   49,  -49,   49,
+       49,   49,   49,   49,   49,  -49,   49
+
+    },
+
+    {
+       11,  -50,  -50,  -50,  -50,  -50,  -50,  -50,  -50,  -50,
+      -50,  -50,  -50,  -50,  -50,  -50,  -50
+    },
+
+    {
+       11,  -51,  -51,   52,  -51,  -51,  -51,  -51,  -51,  -51,
+      -51,  -51,  -51,  -51,  -51,  -51,  -51
+    },
+
+    {
+       11,  -52,  -52,  -52,  -52,  -52,  -52,  -52,  -52,  -52,
+      -52,  -52,  -52,  -52,  -52,  -52,  -52
+    },
+
+    {
+       11,  -53,  -53,  -53,  -53,  -53,  -53,  -53,  -53,  -53,
+      -53,  -53,  -53,  -53,  -53,  -53,  -53
+    },
+
+    {
+       11,   54,   54,  -54,   54,   54,   54,   54,   54,   54,
+       54,   54,   54,   54,   54,   54,   54
+
+    },
+
+    {
+       11,  -55,  -55,  -55,  -55,  -55,  -55,  -55,  -55,  -55,
+      -55,  -55,  -55,  -55,  -55,  -55,  -55
+    },
+
+    {
+       11,  -56,  -56,  -56,  -56,  -56,  -56,  -56,  -56,  -56,
+      -56,   60,   57,   57,  -56,  -56,  -56
+    },
+
+    {
+       11,  -57,  -57,  -57,  -57,  -57,  -57,  -57,  -57,  -57,
+      -57,   57,   57,   57,  -57,  -57,  -57
+    },
+
+    {
+       11,  -58,  -58,  -58,  -58,  -58,  -58,  -58,  -58,  -58,
+      -58,  -58,  -58,  -58,  -58,  -58,  -58
+    },
+
+    {
+       11,  -59,  -59,  -59,  -59,  -59,  -59,  -59,  -59,  -59,
+      -59,  -59,  -59,  -59,  -59,  -59,  -59
+
+    },
+
+    {
+       11,  -60,  -60,  -60,  -60,  -60,  -60,  -60,  -60,  -60,
+      -60,   57,   57,   57,  -60,  -60,  -60
+    },
+
+    } ;
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
+static int yy_get_next_buffer (void );
+static void yy_fatal_error (yyconst char msg[]  );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up zconftext.
+ */
+#define YY_DO_BEFORE_ACTION \
+	(yytext_ptr) = yy_bp; \
+	zconfleng = (size_t) (yy_cp - yy_bp); \
+	(yy_hold_char) = *yy_cp; \
+	*yy_cp = '\0'; \
+	(yy_c_buf_p) = yy_cp;
+
+#define YY_NUM_RULES 33
+#define YY_END_OF_BUFFER 34
+/* This struct is not used in this scanner,
+   but its presence is necessary. */
+struct yy_trans_info
+	{
+	flex_int32_t yy_verify;
+	flex_int32_t yy_nxt;
+	};
+static yyconst flex_int16_t yy_accept[61] =
+    {   0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+       34,    5,    4,    2,    3,    7,    8,    6,   32,   29,
+       31,   24,   28,   27,   26,   22,   17,   13,   16,   20,
+       22,   11,   12,   19,   19,   14,   22,   22,    4,    2,
+        3,    3,    1,    6,   32,   29,   31,   30,   24,   23,
+       26,   25,   15,   20,    9,   19,   19,   21,   10,   18
+    } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+    {   0,
+        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    2,    4,    5,    6,    1,    1,    7,    8,    9,
+       10,    1,    1,    1,   11,   12,   12,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,    1,    1,    1,
+       14,    1,    1,    1,   13,   13,   13,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+        1,   15,    1,    1,   13,    1,   13,   13,   13,   13,
+
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+       13,   13,   13,   13,   13,   13,   13,   13,   13,   13,
+       13,   13,    1,   16,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1
+    } ;
+
+extern int zconf_flex_debug;
+int zconf_flex_debug = 0;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *zconftext;
+#define YY_NO_INPUT 1
+
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <glob.h>
+#include <libgen.h>
+
+#include "lkc.h"
+
+#define START_STRSIZE	16
+
+static struct {
+	struct file *file;
+	int lineno;
+} current_pos;
+
+static char *text;
+static int text_size, text_asize;
+
+struct buffer {
+	struct buffer *parent;
+	YY_BUFFER_STATE state;
+};
+
+struct buffer *current_buf;
+
+static int last_ts, first_ts;
+
+static void zconf_endhelp(void);
+static void zconf_endfile(void);
+
+static void new_string(void)
+{
+	text = xmalloc(START_STRSIZE);
+	text_asize = START_STRSIZE;
+	text_size = 0;
+	*text = 0;
+}
+
+static void append_string(const char *str, int size)
+{
+	int new_size = text_size + size + 1;
+	if (new_size > text_asize) {
+		new_size += START_STRSIZE - 1;
+		new_size &= -START_STRSIZE;
+		text = realloc(text, new_size);
+		text_asize = new_size;
+	}
+	memcpy(text + text_size, str, size);
+	text_size += size;
+	text[text_size] = 0;
+}
+
+static void alloc_string(const char *str, int size)
+{
+	text = xmalloc(size + 1);
+	memcpy(text, str, size);
+	text[size] = 0;
+}
+
+#define INITIAL 0
+#define COMMAND 1
+#define HELP 2
+#define STRING 3
+#define PARAM 4
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+#include <unistd.h>
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+static int yy_init_globals (void );
+
+/* Accessor methods to globals.
+   These are made visible to non-reentrant scanners for convenience. */
+
+int zconflex_destroy (void );
+
+int zconfget_debug (void );
+
+void zconfset_debug (int debug_flag  );
+
+YY_EXTRA_TYPE zconfget_extra (void );
+
+void zconfset_extra (YY_EXTRA_TYPE user_defined  );
+
+FILE *zconfget_in (void );
+
+void zconfset_in  (FILE * in_str  );
+
+FILE *zconfget_out (void );
+
+void zconfset_out  (FILE * out_str  );
+
+yy_size_t zconfget_leng (void );
+
+char *zconfget_text (void );
+
+int zconfget_lineno (void );
+
+void zconfset_lineno (int line_number  );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int zconfwrap (void );
+#else
+extern int zconfwrap (void );
+#endif
+#endif
+
+    static void yyunput (int c,char *buf_ptr  );
+    
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+
+#endif
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO do { if (fwrite( zconftext, zconfleng, 1, zconfout )) {} } while (0)
+#endif
+
+/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+	errno=0; \
+	while ( (result = read( fileno(zconfin), (char *) buf, max_size )) < 0 ) \
+	{ \
+		if( errno != EINTR) \
+		{ \
+			YY_FATAL_ERROR( "input in flex scanner failed" ); \
+			break; \
+		} \
+		errno=0; \
+		clearerr(zconfin); \
+	}\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int zconflex (void);
+
+#define YY_DECL int zconflex (void)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after zconftext and zconfleng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+#define YY_RULE_SETUP \
+	YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+	register yy_state_type yy_current_state;
+	register char *yy_cp, *yy_bp;
+	register int yy_act;
+    
+	int str = 0;
+	int ts, i;
+
+	if ( !(yy_init) )
+		{
+		(yy_init) = 1;
+
+#ifdef YY_USER_INIT
+		YY_USER_INIT;
+#endif
+
+		if ( ! (yy_start) )
+			(yy_start) = 1;	/* first start state */
+
+		if ( ! zconfin )
+			zconfin = stdin;
+
+		if ( ! zconfout )
+			zconfout = stdout;
+
+		if ( ! YY_CURRENT_BUFFER ) {
+			zconfensure_buffer_stack ();
+			YY_CURRENT_BUFFER_LVALUE =
+				zconf_create_buffer(zconfin,YY_BUF_SIZE );
+		}
+
+		zconf_load_buffer_state( );
+		}
+
+	while ( 1 )		/* loops until end-of-file is reached */
+		{
+		yy_cp = (yy_c_buf_p);
+
+		/* Support of zconftext. */
+		*yy_cp = (yy_hold_char);
+
+		/* yy_bp points to the position in yy_ch_buf of the start of
+		 * the current run.
+		 */
+		yy_bp = yy_cp;
+
+		yy_current_state = (yy_start);
+yy_match:
+		while ( (yy_current_state = yy_nxt[yy_current_state][ yy_ec[YY_SC_TO_UI(*yy_cp)]  ]) > 0 )
+			++yy_cp;
+
+		yy_current_state = -yy_current_state;
+
+yy_find_action:
+		yy_act = yy_accept[yy_current_state];
+
+		YY_DO_BEFORE_ACTION;
+
+do_action:	/* This label is used only to access EOF actions. */
+
+		switch ( yy_act )
+	{ /* beginning of action switch */
+case 1:
+/* rule 1 can match eol */
+case 2:
+/* rule 2 can match eol */
+YY_RULE_SETUP
+{
+	current_file->lineno++;
+	return T_EOL;
+}
+	YY_BREAK
+case 3:
+YY_RULE_SETUP
+
+	YY_BREAK
+case 4:
+YY_RULE_SETUP
+{
+	BEGIN(COMMAND);
+}
+	YY_BREAK
+case 5:
+YY_RULE_SETUP
+{
+	unput(zconftext[0]);
+	BEGIN(COMMAND);
+}
+	YY_BREAK
+
+case 6:
+YY_RULE_SETUP
+{
+		const struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
+		BEGIN(PARAM);
+		current_pos.file = current_file;
+		current_pos.lineno = current_file->lineno;
+		if (id && id->flags & TF_COMMAND) {
+			zconflval.id = id;
+			return id->token;
+		}
+		alloc_string(zconftext, zconfleng);
+		zconflval.string = text;
+		return T_WORD;
+	}
+	YY_BREAK
+case 7:
+YY_RULE_SETUP
+
+	YY_BREAK
+case 8:
+/* rule 8 can match eol */
+YY_RULE_SETUP
+{
+		BEGIN(INITIAL);
+		current_file->lineno++;
+		return T_EOL;
+	}
+	YY_BREAK
+
+case 9:
+YY_RULE_SETUP
+return T_AND;
+	YY_BREAK
+case 10:
+YY_RULE_SETUP
+return T_OR;
+	YY_BREAK
+case 11:
+YY_RULE_SETUP
+return T_OPEN_PAREN;
+	YY_BREAK
+case 12:
+YY_RULE_SETUP
+return T_CLOSE_PAREN;
+	YY_BREAK
+case 13:
+YY_RULE_SETUP
+return T_NOT;
+	YY_BREAK
+case 14:
+YY_RULE_SETUP
+return T_EQUAL;
+	YY_BREAK
+case 15:
+YY_RULE_SETUP
+return T_UNEQUAL;
+	YY_BREAK
+case 16:
+YY_RULE_SETUP
+{
+		str = zconftext[0];
+		new_string();
+		BEGIN(STRING);
+	}
+	YY_BREAK
+case 17:
+/* rule 17 can match eol */
+YY_RULE_SETUP
+BEGIN(INITIAL); current_file->lineno++; return T_EOL;
+	YY_BREAK
+case 18:
+YY_RULE_SETUP
+/* ignore */
+	YY_BREAK
+case 19:
+YY_RULE_SETUP
+{
+		const struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
+		if (id && id->flags & TF_PARAM) {
+			zconflval.id = id;
+			return id->token;
+		}
+		alloc_string(zconftext, zconfleng);
+		zconflval.string = text;
+		return T_WORD;
+	}
+	YY_BREAK
+case 20:
+YY_RULE_SETUP
+/* comment */
+	YY_BREAK
+case 21:
+/* rule 21 can match eol */
+YY_RULE_SETUP
+current_file->lineno++;
+	YY_BREAK
+case 22:
+YY_RULE_SETUP
+
+	YY_BREAK
+case YY_STATE_EOF(PARAM):
+{
+		BEGIN(INITIAL);
+	}
+	YY_BREAK
+
+case 23:
+/* rule 23 can match eol */
+*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
+(yy_c_buf_p) = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up zconftext again */
+YY_RULE_SETUP
+{
+		append_string(zconftext, zconfleng);
+		zconflval.string = text;
+		return T_WORD_QUOTE;
+	}
+	YY_BREAK
+case 24:
+YY_RULE_SETUP
+{
+		append_string(zconftext, zconfleng);
+	}
+	YY_BREAK
+case 25:
+/* rule 25 can match eol */
+*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
+(yy_c_buf_p) = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up zconftext again */
+YY_RULE_SETUP
+{
+		append_string(zconftext + 1, zconfleng - 1);
+		zconflval.string = text;
+		return T_WORD_QUOTE;
+	}
+	YY_BREAK
+case 26:
+YY_RULE_SETUP
+{
+		append_string(zconftext + 1, zconfleng - 1);
+	}
+	YY_BREAK
+case 27:
+YY_RULE_SETUP
+{
+		if (str == zconftext[0]) {
+			BEGIN(PARAM);
+			zconflval.string = text;
+			return T_WORD_QUOTE;
+		} else
+			append_string(zconftext, 1);
+	}
+	YY_BREAK
+case 28:
+/* rule 28 can match eol */
+YY_RULE_SETUP
+{
+		printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
+		current_file->lineno++;
+		BEGIN(INITIAL);
+		return T_EOL;
+	}
+	YY_BREAK
+case YY_STATE_EOF(STRING):
+{
+		BEGIN(INITIAL);
+	}
+	YY_BREAK
+
+case 29:
+YY_RULE_SETUP
+{
+		ts = 0;
+		for (i = 0; i < zconfleng; i++) {
+			if (zconftext[i] == '\t')
+				ts = (ts & ~7) + 8;
+			else
+				ts++;
+		}
+		last_ts = ts;
+		if (first_ts) {
+			if (ts < first_ts) {
+				zconf_endhelp();
+				return T_HELPTEXT;
+			}
+			ts -= first_ts;
+			while (ts > 8) {
+				append_string("        ", 8);
+				ts -= 8;
+			}
+			append_string("        ", ts);
+		}
+	}
+	YY_BREAK
+case 30:
+/* rule 30 can match eol */
+*yy_cp = (yy_hold_char); /* undo effects of setting up zconftext */
+(yy_c_buf_p) = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up zconftext again */
+YY_RULE_SETUP
+{
+		current_file->lineno++;
+		zconf_endhelp();
+		return T_HELPTEXT;
+	}
+	YY_BREAK
+case 31:
+/* rule 31 can match eol */
+YY_RULE_SETUP
+{
+		current_file->lineno++;
+		append_string("\n", 1);
+	}
+	YY_BREAK
+case 32:
+YY_RULE_SETUP
+{
+		while (zconfleng) {
+			if ((zconftext[zconfleng-1] != ' ') && (zconftext[zconfleng-1] != '\t'))
+				break;
+			zconfleng--;
+		}
+		append_string(zconftext, zconfleng);
+		if (!first_ts)
+			first_ts = last_ts;
+	}
+	YY_BREAK
+case YY_STATE_EOF(HELP):
+{
+		zconf_endhelp();
+		return T_HELPTEXT;
+	}
+	YY_BREAK
+
+case YY_STATE_EOF(INITIAL):
+case YY_STATE_EOF(COMMAND):
+{
+	if (current_file) {
+		zconf_endfile();
+		return T_EOL;
+	}
+	fclose(zconfin);
+	yyterminate();
+}
+	YY_BREAK
+case 33:
+YY_RULE_SETUP
+YY_FATAL_ERROR( "flex scanner jammed" );
+	YY_BREAK
+
+	case YY_END_OF_BUFFER:
+		{
+		/* Amount of text matched not including the EOB char. */
+		int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+		/* Undo the effects of YY_DO_BEFORE_ACTION. */
+		*yy_cp = (yy_hold_char);
+		YY_RESTORE_YY_MORE_OFFSET
+
+		if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+			{
+			/* We're scanning a new file or input source.  It's
+			 * possible that this happened because the user
+			 * just pointed zconfin at a new source and called
+			 * zconflex().  If so, then we have to assure
+			 * consistency between YY_CURRENT_BUFFER and our
+			 * globals.  Here is the right place to do so, because
+			 * this is the first action (other than possibly a
+			 * back-up) that will match for the new input source.
+			 */
+			(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+			YY_CURRENT_BUFFER_LVALUE->yy_input_file = zconfin;
+			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+			}
+
+		/* Note that here we test for yy_c_buf_p "<=" to the position
+		 * of the first EOB in the buffer, since yy_c_buf_p will
+		 * already have been incremented past the NUL character
+		 * (since all states make transitions on EOB to the
+		 * end-of-buffer state).  Contrast this with the test
+		 * in input().
+		 */
+		if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+			{ /* This was really a NUL. */
+			yy_state_type yy_next_state;
+
+			(yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+			yy_current_state = yy_get_previous_state(  );
+
+			/* Okay, we're now positioned to make the NUL
+			 * transition.  We couldn't have
+			 * yy_get_previous_state() go ahead and do it
+			 * for us because it doesn't know how to deal
+			 * with the possibility of jamming (and we don't
+			 * want to build jamming into it because then it
+			 * will run more slowly).
+			 */
+
+			yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+			yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+			if ( yy_next_state )
+				{
+				/* Consume the NUL. */
+				yy_cp = ++(yy_c_buf_p);
+				yy_current_state = yy_next_state;
+				goto yy_match;
+				}
+
+			else
+				{
+				yy_cp = (yy_c_buf_p);
+				goto yy_find_action;
+				}
+			}
+
+		else switch ( yy_get_next_buffer(  ) )
+			{
+			case EOB_ACT_END_OF_FILE:
+				{
+				(yy_did_buffer_switch_on_eof) = 0;
+
+				if ( zconfwrap( ) )
+					{
+					/* Note: because we've taken care in
+					 * yy_get_next_buffer() to have set up
+					 * zconftext, we can now set up
+					 * yy_c_buf_p so that if some total
+					 * hoser (like flex itself) wants to
+					 * call the scanner after we return the
+					 * YY_NULL, it'll still work - another
+					 * YY_NULL will get returned.
+					 */
+					(yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+					yy_act = YY_STATE_EOF(YY_START);
+					goto do_action;
+					}
+
+				else
+					{
+					if ( ! (yy_did_buffer_switch_on_eof) )
+						YY_NEW_FILE;
+					}
+				break;
+				}
+
+			case EOB_ACT_CONTINUE_SCAN:
+				(yy_c_buf_p) =
+					(yytext_ptr) + yy_amount_of_matched_text;
+
+				yy_current_state = yy_get_previous_state(  );
+
+				yy_cp = (yy_c_buf_p);
+				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+				goto yy_match;
+
+			case EOB_ACT_LAST_MATCH:
+				(yy_c_buf_p) =
+				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+				yy_current_state = yy_get_previous_state(  );
+
+				yy_cp = (yy_c_buf_p);
+				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+				goto yy_find_action;
+			}
+		break;
+		}
+
+	default:
+		YY_FATAL_ERROR(
+			"fatal flex scanner internal error--no action found" );
+	} /* end of action switch */
+		} /* end of scanning one token */
+} /* end of zconflex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ *	EOB_ACT_LAST_MATCH -
+ *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ *	EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (void)
+{
+    	register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+	register char *source = (yytext_ptr);
+	register int number_to_move, i;
+	int ret_val;
+
+	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+		YY_FATAL_ERROR(
+		"fatal flex scanner internal error--end of buffer missed" );
+
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+		{ /* Don't try to fill the buffer, so this is an EOF. */
+		if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+			{
+			/* We matched a single character, the EOB, so
+			 * treat this as a final EOF.
+			 */
+			return EOB_ACT_END_OF_FILE;
+			}
+
+		else
+			{
+			/* We matched some text prior to the EOB, first
+			 * process it.
+			 */
+			return EOB_ACT_LAST_MATCH;
+			}
+		}
+
+	/* Try to read more data. */
+
+	/* First move last chars to start of buffer. */
+	number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
+
+	for ( i = 0; i < number_to_move; ++i )
+		*(dest++) = *(source++);
+
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+		/* don't do the read, it's not guaranteed to return an EOF,
+		 * just force an EOF
+		 */
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+	else
+		{
+			yy_size_t num_to_read =
+			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+		while ( num_to_read <= 0 )
+			{ /* Not enough room in the buffer - grow it. */
+
+			/* just a shorter name for the current buffer */
+			YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;
+
+			int yy_c_buf_p_offset =
+				(int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+			if ( b->yy_is_our_buffer )
+				{
+				yy_size_t new_size = b->yy_buf_size * 2;
+
+				if ( new_size <= 0 )
+					b->yy_buf_size += b->yy_buf_size / 8;
+				else
+					b->yy_buf_size *= 2;
+
+				b->yy_ch_buf = (char *)
+					/* Include room in for 2 EOB chars. */
+					zconfrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
+				}
+			else
+				/* Can't grow it, we don't own it. */
+				b->yy_ch_buf = 0;
+
+			if ( ! b->yy_ch_buf )
+				YY_FATAL_ERROR(
+				"fatal error - scanner input buffer overflow" );
+
+			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+						number_to_move - 1;
+
+			}
+
+		if ( num_to_read > YY_READ_BUF_SIZE )
+			num_to_read = YY_READ_BUF_SIZE;
+
+		/* Read in more data. */
+		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+			(yy_n_chars), num_to_read );
+
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	if ( (yy_n_chars) == 0 )
+		{
+		if ( number_to_move == YY_MORE_ADJ )
+			{
+			ret_val = EOB_ACT_END_OF_FILE;
+			zconfrestart(zconfin  );
+			}
+
+		else
+			{
+			ret_val = EOB_ACT_LAST_MATCH;
+			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+				YY_BUFFER_EOF_PENDING;
+			}
+		}
+
+	else
+		ret_val = EOB_ACT_CONTINUE_SCAN;
+
+	if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+		/* Extend the array by 50%, plus the number we really need. */
+		yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
+		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) zconfrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
+		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
+	}
+
+	(yy_n_chars) += number_to_move;
+	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+	(yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+	return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+    static yy_state_type yy_get_previous_state (void)
+{
+	register yy_state_type yy_current_state;
+	register char *yy_cp;
+    
+	yy_current_state = (yy_start);
+
+	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+		{
+		yy_current_state = yy_nxt[yy_current_state][(*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1)];
+		}
+
+	return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ *	next_state = yy_try_NUL_trans( current_state );
+ */
+    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
+{
+	register int yy_is_jam;
+    
+	yy_current_state = yy_nxt[yy_current_state][1];
+	yy_is_jam = (yy_current_state <= 0);
+
+		return yy_is_jam ? 0 : yy_current_state;
+}
+
+    static void yyunput (int c, register char * yy_bp )
+{
+	register char *yy_cp;
+    
+    yy_cp = (yy_c_buf_p);
+
+	/* undo effects of setting up zconftext */
+	*yy_cp = (yy_hold_char);
+
+	if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+		{ /* need to shift things up to make room */
+		/* +2 for EOB chars. */
+		register yy_size_t number_to_move = (yy_n_chars) + 2;
+		register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
+					YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
+		register char *source =
+				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
+
+		while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+			*--dest = *--source;
+
+		yy_cp += (int) (dest - source);
+		yy_bp += (int) (dest - source);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
+			(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
+
+		if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+			YY_FATAL_ERROR( "flex scanner push-back overflow" );
+		}
+
+	*--yy_cp = (char) c;
+
+	(yytext_ptr) = yy_bp;
+	(yy_hold_char) = *yy_cp;
+	(yy_c_buf_p) = yy_cp;
+}
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+    static int yyinput (void)
+#else
+    static int input  (void)
+#endif
+
+{
+	int c;
+    
+	*(yy_c_buf_p) = (yy_hold_char);
+
+	if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+		{
+		/* yy_c_buf_p now points to the character we want to return.
+		 * If this occurs *before* the EOB characters, then it's a
+		 * valid NUL; if not, then we've hit the end of the buffer.
+		 */
+		if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+			/* This was really a NUL. */
+			*(yy_c_buf_p) = '\0';
+
+		else
+			{ /* need more input */
+			yy_size_t offset = (yy_c_buf_p) - (yytext_ptr);
+			++(yy_c_buf_p);
+
+			switch ( yy_get_next_buffer(  ) )
+				{
+				case EOB_ACT_LAST_MATCH:
+					/* This happens because yy_g_n_b()
+					 * sees that we've accumulated a
+					 * token and flags that we need to
+					 * try matching the token before
+					 * proceeding.  But for input(),
+					 * there's no matching to consider.
+					 * So convert the EOB_ACT_LAST_MATCH
+					 * to EOB_ACT_END_OF_FILE.
+					 */
+
+					/* Reset buffer status. */
+					zconfrestart(zconfin );
+
+					/*FALLTHROUGH*/
+
+				case EOB_ACT_END_OF_FILE:
+					{
+					if ( zconfwrap( ) )
+						return EOF;
+
+					if ( ! (yy_did_buffer_switch_on_eof) )
+						YY_NEW_FILE;
+#ifdef __cplusplus
+					return yyinput();
+#else
+					return input();
+#endif
+					}
+
+				case EOB_ACT_CONTINUE_SCAN:
+					(yy_c_buf_p) = (yytext_ptr) + offset;
+					break;
+				}
+			}
+		}
+
+	c = *(unsigned char *) (yy_c_buf_p);	/* cast for 8-bit char's */
+	*(yy_c_buf_p) = '\0';	/* preserve zconftext */
+	(yy_hold_char) = *++(yy_c_buf_p);
+
+	return c;
+}
+#endif	/* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ * 
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+    void zconfrestart  (FILE * input_file )
+{
+    
+	if ( ! YY_CURRENT_BUFFER ){
+        zconfensure_buffer_stack ();
+		YY_CURRENT_BUFFER_LVALUE =
+            zconf_create_buffer(zconfin,YY_BUF_SIZE );
+	}
+
+	zconf_init_buffer(YY_CURRENT_BUFFER,input_file );
+	zconf_load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ * 
+ */
+    void zconf_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
+{
+    
+	/* TODO. We should be able to replace this entire function body
+	 * with
+	 *		zconfpop_buffer_state();
+	 *		zconfpush_buffer_state(new_buffer);
+     */
+	zconfensure_buffer_stack ();
+	if ( YY_CURRENT_BUFFER == new_buffer )
+		return;
+
+	if ( YY_CURRENT_BUFFER )
+		{
+		/* Flush out information for old buffer. */
+		*(yy_c_buf_p) = (yy_hold_char);
+		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	YY_CURRENT_BUFFER_LVALUE = new_buffer;
+	zconf_load_buffer_state( );
+
+	/* We don't actually know whether we did this switch during
+	 * EOF (zconfwrap()) processing, but the only time this flag
+	 * is looked at is after zconfwrap() is called, so it's safe
+	 * to go ahead and always set it.
+	 */
+	(yy_did_buffer_switch_on_eof) = 1;
+}
+
+static void zconf_load_buffer_state  (void)
+{
+    	(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+	(yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+	zconfin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+	(yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ * 
+ * @return the allocated buffer state.
+ */
+    YY_BUFFER_STATE zconf_create_buffer  (FILE * file, int  size )
+{
+	YY_BUFFER_STATE b;
+    
+	b = (YY_BUFFER_STATE) zconfalloc(sizeof( struct yy_buffer_state )  );
+	if ( ! b )
+		YY_FATAL_ERROR( "out of dynamic memory in zconf_create_buffer()" );
+
+	b->yy_buf_size = size;
+
+	/* yy_ch_buf has to be 2 characters longer than the size given because
+	 * we need to put in 2 end-of-buffer characters.
+	 */
+	b->yy_ch_buf = (char *) zconfalloc(b->yy_buf_size + 2  );
+	if ( ! b->yy_ch_buf )
+		YY_FATAL_ERROR( "out of dynamic memory in zconf_create_buffer()" );
+
+	b->yy_is_our_buffer = 1;
+
+	zconf_init_buffer(b,file );
+
+	return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with zconf_create_buffer()
+ * 
+ */
+    void zconf_delete_buffer (YY_BUFFER_STATE  b )
+{
+    
+	if ( ! b )
+		return;
+
+	if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+		YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+	if ( b->yy_is_our_buffer )
+		zconffree((void *) b->yy_ch_buf  );
+
+	zconffree((void *) b  );
+}
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a zconfrestart() or at EOF.
+ */
+    static void zconf_init_buffer  (YY_BUFFER_STATE  b, FILE * file )
+
+{
+	int oerrno = errno;
+    
+	zconf_flush_buffer(b );
+
+	b->yy_input_file = file;
+	b->yy_fill_buffer = 1;
+
+    /* If b is the current buffer, then zconf_init_buffer was _probably_
+     * called from zconfrestart() or through yy_get_next_buffer.
+     * In that case, we don't want to reset the lineno or column.
+     */
+    if (b != YY_CURRENT_BUFFER){
+        b->yy_bs_lineno = 1;
+        b->yy_bs_column = 0;
+    }
+
+        b->yy_is_interactive = 0;
+    
+	errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ * 
+ */
+    void zconf_flush_buffer (YY_BUFFER_STATE  b )
+{
+    	if ( ! b )
+		return;
+
+	b->yy_n_chars = 0;
+
+	/* We always need two end-of-buffer characters.  The first causes
+	 * a transition to the end-of-buffer state.  The second causes
+	 * a jam in that state.
+	 */
+	b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+	b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+	b->yy_buf_pos = &b->yy_ch_buf[0];
+
+	b->yy_at_bol = 1;
+	b->yy_buffer_status = YY_BUFFER_NEW;
+
+	if ( b == YY_CURRENT_BUFFER )
+		zconf_load_buffer_state( );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ *  the current state. This function will allocate the stack
+ *  if necessary.
+ *  @param new_buffer The new state.
+ *  
+ */
+void zconfpush_buffer_state (YY_BUFFER_STATE new_buffer )
+{
+    	if (new_buffer == NULL)
+		return;
+
+	zconfensure_buffer_stack();
+
+	/* This block is copied from zconf_switch_to_buffer. */
+	if ( YY_CURRENT_BUFFER )
+		{
+		/* Flush out information for old buffer. */
+		*(yy_c_buf_p) = (yy_hold_char);
+		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	/* Only push if top exists. Otherwise, replace top. */
+	if (YY_CURRENT_BUFFER)
+		(yy_buffer_stack_top)++;
+	YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+	/* copied from zconf_switch_to_buffer. */
+	zconf_load_buffer_state( );
+	(yy_did_buffer_switch_on_eof) = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ *  The next element becomes the new top.
+ *  
+ */
+void zconfpop_buffer_state (void)
+{
+    	if (!YY_CURRENT_BUFFER)
+		return;
+
+	zconf_delete_buffer(YY_CURRENT_BUFFER );
+	YY_CURRENT_BUFFER_LVALUE = NULL;
+	if ((yy_buffer_stack_top) > 0)
+		--(yy_buffer_stack_top);
+
+	if (YY_CURRENT_BUFFER) {
+		zconf_load_buffer_state( );
+		(yy_did_buffer_switch_on_eof) = 1;
+	}
+}
+
+/* Allocates the stack if it does not exist.
+ *  Guarantees space for at least one push.
+ */
+static void zconfensure_buffer_stack (void)
+{
+	yy_size_t num_to_alloc;
+    
+	if (!(yy_buffer_stack)) {
+
+		/* First allocation is just for 2 elements, since we don't know if this
+		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
+		 * immediate realloc on the next call.
+         */
+		num_to_alloc = 1;
+		(yy_buffer_stack) = (struct yy_buffer_state**)zconfalloc
+								(num_to_alloc * sizeof(struct yy_buffer_state*)
+								);
+		if ( ! (yy_buffer_stack) )
+			YY_FATAL_ERROR( "out of dynamic memory in zconfensure_buffer_stack()" );
+								  
+		memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+				
+		(yy_buffer_stack_max) = num_to_alloc;
+		(yy_buffer_stack_top) = 0;
+		return;
+	}
+
+	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+		/* Increase the buffer to prepare for a possible push. */
+		int grow_size = 8 /* arbitrary grow size */;
+
+		num_to_alloc = (yy_buffer_stack_max) + grow_size;
+		(yy_buffer_stack) = (struct yy_buffer_state**)zconfrealloc
+								((yy_buffer_stack),
+								num_to_alloc * sizeof(struct yy_buffer_state*)
+								);
+		if ( ! (yy_buffer_stack) )
+			YY_FATAL_ERROR( "out of dynamic memory in zconfensure_buffer_stack()" );
+
+		/* zero only the new slots.*/
+		memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+		(yy_buffer_stack_max) = num_to_alloc;
+	}
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ * 
+ * @return the newly allocated buffer state object. 
+ */
+YY_BUFFER_STATE zconf_scan_buffer  (char * base, yy_size_t  size )
+{
+	YY_BUFFER_STATE b;
+    
+	if ( size < 2 ||
+	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
+	     base[size-1] != YY_END_OF_BUFFER_CHAR )
+		/* They forgot to leave room for the EOB's. */
+		return 0;
+
+	b = (YY_BUFFER_STATE) zconfalloc(sizeof( struct yy_buffer_state )  );
+	if ( ! b )
+		YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_buffer()" );
+
+	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
+	b->yy_buf_pos = b->yy_ch_buf = base;
+	b->yy_is_our_buffer = 0;
+	b->yy_input_file = 0;
+	b->yy_n_chars = b->yy_buf_size;
+	b->yy_is_interactive = 0;
+	b->yy_at_bol = 1;
+	b->yy_fill_buffer = 0;
+	b->yy_buffer_status = YY_BUFFER_NEW;
+
+	zconf_switch_to_buffer(b  );
+
+	return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to zconflex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ * 
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ *       zconf_scan_bytes() instead.
+ */
+YY_BUFFER_STATE zconf_scan_string (yyconst char * yystr )
+{
+    
+	return zconf_scan_bytes(yystr,strlen(yystr) );
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to zconflex() will
+ * scan from a @e copy of @a bytes.
+ * @param yybytes the byte buffer to scan
+ * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
+ * 
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE zconf_scan_bytes  (yyconst char * yybytes, yy_size_t  _yybytes_len )
+{
+	YY_BUFFER_STATE b;
+	char *buf;
+	yy_size_t n;
+	int i;
+    
+	/* Get memory for full buffer, including space for trailing EOB's. */
+	n = _yybytes_len + 2;
+	buf = (char *) zconfalloc(n  );
+	if ( ! buf )
+		YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_bytes()" );
+
+	for ( i = 0; i < _yybytes_len; ++i )
+		buf[i] = yybytes[i];
+
+	buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+	b = zconf_scan_buffer(buf,n );
+	if ( ! b )
+		YY_FATAL_ERROR( "bad buffer in zconf_scan_bytes()" );
+
+	/* It's okay to grow etc. this buffer, and we should throw it
+	 * away when we're done.
+	 */
+	b->yy_is_our_buffer = 1;
+
+	return b;
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yy_fatal_error (yyconst char* msg )
+{
+    	(void) fprintf( stderr, "%s\n", msg );
+	exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+	do \
+		{ \
+		/* Undo effects of setting up zconftext. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+		zconftext[zconfleng] = (yy_hold_char); \
+		(yy_c_buf_p) = zconftext + yyless_macro_arg; \
+		(yy_hold_char) = *(yy_c_buf_p); \
+		*(yy_c_buf_p) = '\0'; \
+		zconfleng = yyless_macro_arg; \
+		} \
+	while ( 0 )
+
+/* Accessor  methods (get/set functions) to struct members. */
+
+/** Get the current line number.
+ * 
+ */
+int zconfget_lineno  (void)
+{
+        
+    return zconflineno;
+}
+
+/** Get the input stream.
+ * 
+ */
+FILE *zconfget_in  (void)
+{
+        return zconfin;
+}
+
+/** Get the output stream.
+ * 
+ */
+FILE *zconfget_out  (void)
+{
+        return zconfout;
+}
+
+/** Get the length of the current token.
+ * 
+ */
+yy_size_t zconfget_leng  (void)
+{
+        return zconfleng;
+}
+
+/** Get the current token.
+ * 
+ */
+
+char *zconfget_text  (void)
+{
+        return zconftext;
+}
+
+/** Set the current line number.
+ * @param line_number
+ * 
+ */
+void zconfset_lineno (int  line_number )
+{
+    
+    zconflineno = line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ * 
+ * @see zconf_switch_to_buffer
+ */
+void zconfset_in (FILE *  in_str )
+{
+        zconfin = in_str ;
+}
+
+void zconfset_out (FILE *  out_str )
+{
+        zconfout = out_str ;
+}
+
+int zconfget_debug  (void)
+{
+        return zconf_flex_debug;
+}
+
+void zconfset_debug (int  bdebug )
+{
+        zconf_flex_debug = bdebug ;
+}
+
+static int yy_init_globals (void)
+{
+        /* Initialization is the same as for the non-reentrant scanner.
+     * This function is called from zconflex_destroy(), so don't allocate here.
+     */
+
+    (yy_buffer_stack) = 0;
+    (yy_buffer_stack_top) = 0;
+    (yy_buffer_stack_max) = 0;
+    (yy_c_buf_p) = (char *) 0;
+    (yy_init) = 0;
+    (yy_start) = 0;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+    zconfin = stdin;
+    zconfout = stdout;
+#else
+    zconfin = (FILE *) 0;
+    zconfout = (FILE *) 0;
+#endif
+
+    /* For future reference: Set errno on error, since we are called by
+     * zconflex_init()
+     */
+    return 0;
+}
+
+/* zconflex_destroy is for both reentrant and non-reentrant scanners. */
+int zconflex_destroy  (void)
+{
+    
+    /* Pop the buffer stack, destroying each element. */
+	while(YY_CURRENT_BUFFER){
+		zconf_delete_buffer(YY_CURRENT_BUFFER  );
+		YY_CURRENT_BUFFER_LVALUE = NULL;
+		zconfpop_buffer_state();
+	}
+
+	/* Destroy the stack itself. */
+	zconffree((yy_buffer_stack) );
+	(yy_buffer_stack) = NULL;
+
+    /* Reset the globals. This is important in a non-reentrant scanner so the next time
+     * zconflex() is called, initialization will occur. */
+    yy_init_globals( );
+
+    return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+	register int i;
+	for ( i = 0; i < n; ++i )
+		s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+	register int n;
+	for ( n = 0; s[n]; ++n )
+		;
+
+	return n;
+}
+#endif
+
+void *zconfalloc (yy_size_t  size )
+{
+	return (void *) malloc( size );
+}
+
+void *zconfrealloc  (void * ptr, yy_size_t  size )
+{
+	/* The cast to (char *) in the following accommodates both
+	 * implementations that use char* generic pointers, and those
+	 * that use void* generic pointers.  It works with the latter
+	 * because both ANSI C and C++ allow castless assignment from
+	 * any pointer type to void*, and deal with argument conversions
+	 * as though doing an assignment.
+	 */
+	return (void *) realloc( (char *) ptr, size );
+}
+
+void zconffree (void * ptr )
+{
+	free( (char *) ptr );	/* see zconfrealloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+void zconf_starthelp(void)
+{
+	new_string();
+	last_ts = first_ts = 0;
+	BEGIN(HELP);
+}
+
+static void zconf_endhelp(void)
+{
+	zconflval.string = text;
+	BEGIN(INITIAL);
+}
+
+/*
+ * Try to open specified file with following names:
+ * ./name
+ * $(srctree)/name
+ * The latter is used when srctree is separate from objtree
+ * when compiling the kernel.
+ * Return NULL if file is not found.
+ */
+FILE *zconf_fopen(const char *name)
+{
+	char *env, fullname[PATH_MAX+1];
+	FILE *f;
+
+	f = fopen(name, "r");
+	if (!f && name != NULL && name[0] != '/') {
+		env = getenv(SRCTREE);
+		if (env) {
+			sprintf(fullname, "%s/%s", env, name);
+			f = fopen(fullname, "r");
+		}
+	}
+	return f;
+}
+
+void zconf_initscan(const char *name)
+{
+	zconfin = zconf_fopen(name);
+	if (!zconfin) {
+		printf("can't find file %s\n", name);
+		exit(1);
+	}
+
+	current_buf = xmalloc(sizeof(*current_buf));
+	memset(current_buf, 0, sizeof(*current_buf));
+
+	current_file = file_lookup(name);
+	current_file->lineno = 1;
+}
+
+static void __zconf_nextfile(const char *name)
+{
+	struct file *iter;
+	struct file *file = file_lookup(name);
+	struct buffer *buf = xmalloc(sizeof(*buf));
+	memset(buf, 0, sizeof(*buf));
+
+	current_buf->state = YY_CURRENT_BUFFER;
+	zconfin = zconf_fopen(file->name);
+	if (!zconfin) {
+		printf("%s:%d: can't open file \"%s\"\n",
+		    zconf_curname(), zconf_lineno(), file->name);
+		exit(1);
+	}
+	zconf_switch_to_buffer(zconf_create_buffer(zconfin,YY_BUF_SIZE));
+	buf->parent = current_buf;
+	current_buf = buf;
+
+	for (iter = current_file->parent; iter; iter = iter->parent ) {
+		if (!strcmp(current_file->name,iter->name) ) {
+			printf("%s:%d: recursive inclusion detected. "
+			       "Inclusion path:\n  current file : '%s'\n",
+			       zconf_curname(), zconf_lineno(),
+			       zconf_curname());
+			iter = current_file->parent;
+			while (iter && \
+			       strcmp(iter->name,current_file->name)) {
+				printf("  included from: '%s:%d'\n",
+				       iter->name, iter->lineno-1);
+				iter = iter->parent;
+			}
+			if (iter)
+				printf("  included from: '%s:%d'\n",
+				       iter->name, iter->lineno+1);
+			exit(1);
+		}
+	}
+	file->lineno = 1;
+	file->parent = current_file;
+	current_file = file;
+}
+
+void zconf_nextfile(const char *name)
+{
+	glob_t gl;
+	int err;
+	int i;
+	char path[PATH_MAX], *p;
+
+	err = glob(name, GLOB_ERR | GLOB_MARK, NULL, &gl);
+
+	/* ignore wildcard patterns that return no result */
+	if (err == GLOB_NOMATCH && strchr(name, '*')) {
+		err = 0;
+		gl.gl_pathc = 0;
+	}
+
+	if (err == GLOB_NOMATCH) {
+		p = strdup(current_file->name);
+		if (p) {
+			snprintf(path, sizeof(path), "%s/%s", dirname(p), name);
+			err = glob(path, GLOB_ERR | GLOB_MARK, NULL, &gl);
+			free(p);
+		}
+	}
+
+	if (err) {
+		const char *reason = "unknown error";
+
+		switch (err) {
+		case GLOB_NOSPACE:
+			reason = "out of memory";
+			break;
+		case GLOB_ABORTED:
+			reason = "read error";
+			break;
+		case GLOB_NOMATCH:
+			reason = "No files found";
+			break;
+		default:
+			break;
+		}
+
+		printf("%s:%d: glob failed: %s \"%s\"\n", zconf_curname(), zconf_lineno(),
+			reason, name);
+
+		exit(1);
+	}
+
+	for (i = 0; i < gl.gl_pathc; i++)
+		__zconf_nextfile(gl.gl_pathv[i]);
+}
+
+static void zconf_endfile(void)
+{
+	struct buffer *parent;
+
+	current_file = current_file->parent;
+
+	parent = current_buf->parent;
+	if (parent) {
+		fclose(zconfin);
+		zconf_delete_buffer(YY_CURRENT_BUFFER);
+		zconf_switch_to_buffer(parent->state);
+	}
+	free(current_buf);
+	current_buf = parent;
+}
+
+int zconf_lineno(void)
+{
+	return current_pos.lineno;
+}
+
+const char *zconf_curname(void)
+{
+	return current_pos.file ? current_pos.file->name : "<none>";
+}
+
diff --git a/scripts/config/zconf.tab.c_shipped b/scripts/config/zconf.tab.c_shipped
new file mode 100644
index 0000000..9989df6
--- /dev/null
+++ b/scripts/config/zconf.tab.c_shipped
@@ -0,0 +1,2554 @@
+/* A Bison parser, made by GNU Bison 2.3.  */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* As a special exception, you may create a larger work that contains
+   part or all of the Bison parser skeleton and distribute that work
+   under terms of your choice, so long as that work isn't itself a
+   parser generator using the skeleton or a modified version thereof
+   as a parser skeleton.  Alternatively, if you modify or redistribute
+   the parser skeleton itself, you may (at your option) remove this
+   special exception, which will cause the skeleton and the resulting
+   Bison output files to be licensed under the GNU General Public
+   License without this special exception.
+
+   This special exception was added by the Free Software Foundation in
+   version 2.2 of Bison.  */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+   simplifying the original so-called "semantic" parser.  */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+   infringing on user name space.  This should be done even for local
+   variables, as they might otherwise be expanded by user macros.
+   There are some unavoidable exceptions within include files to
+   define necessary library symbols; they are noted "INFRINGES ON
+   USER NAME SPACE" below.  */
+
+/* Identify Bison output.  */
+#define YYBISON 1
+
+/* Bison version.  */
+#define YYBISON_VERSION "2.3"
+
+/* Skeleton name.  */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers.  */
+#define YYPURE 0
+
+/* Using locations.  */
+#define YYLSP_NEEDED 0
+
+/* Substitute the variable and function names.  */
+#define yyparse zconfparse
+#define yylex   zconflex
+#define yyerror zconferror
+#define yylval  zconflval
+#define yychar  zconfchar
+#define yydebug zconfdebug
+#define yynerrs zconfnerrs
+
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     T_MAINMENU = 258,
+     T_MENU = 259,
+     T_ENDMENU = 260,
+     T_SOURCE = 261,
+     T_CHOICE = 262,
+     T_ENDCHOICE = 263,
+     T_COMMENT = 264,
+     T_CONFIG = 265,
+     T_MENUCONFIG = 266,
+     T_HELP = 267,
+     T_HELPTEXT = 268,
+     T_IF = 269,
+     T_ENDIF = 270,
+     T_DEPENDS = 271,
+     T_OPTIONAL = 272,
+     T_PROMPT = 273,
+     T_TYPE = 274,
+     T_DEFAULT = 275,
+     T_SELECT = 276,
+     T_RANGE = 277,
+     T_VISIBLE = 278,
+     T_OPTION = 279,
+     T_ON = 280,
+     T_RESET = 281,
+     T_WORD = 282,
+     T_WORD_QUOTE = 283,
+     T_UNEQUAL = 284,
+     T_CLOSE_PAREN = 285,
+     T_OPEN_PAREN = 286,
+     T_EOL = 287,
+     T_OR = 288,
+     T_AND = 289,
+     T_EQUAL = 290,
+     T_NOT = 291
+   };
+#endif
+/* Tokens.  */
+#define T_MAINMENU 258
+#define T_MENU 259
+#define T_ENDMENU 260
+#define T_SOURCE 261
+#define T_CHOICE 262
+#define T_ENDCHOICE 263
+#define T_COMMENT 264
+#define T_CONFIG 265
+#define T_MENUCONFIG 266
+#define T_HELP 267
+#define T_HELPTEXT 268
+#define T_IF 269
+#define T_ENDIF 270
+#define T_DEPENDS 271
+#define T_OPTIONAL 272
+#define T_PROMPT 273
+#define T_TYPE 274
+#define T_DEFAULT 275
+#define T_SELECT 276
+#define T_RANGE 277
+#define T_VISIBLE 278
+#define T_OPTION 279
+#define T_ON 280
+#define T_RESET 281
+#define T_WORD 282
+#define T_WORD_QUOTE 283
+#define T_UNEQUAL 284
+#define T_CLOSE_PAREN 285
+#define T_OPEN_PAREN 286
+#define T_EOL 287
+#define T_OR 288
+#define T_AND 289
+#define T_EQUAL 290
+#define T_NOT 291
+
+
+
+
+/* Copy the first part of user declarations.  */
+
+
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "lkc.h"
+
+#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
+
+#define PRINTD		0x0001
+#define DEBUG_PARSE	0x0002
+
+int cdebug = PRINTD;
+
+extern int zconflex(void);
+static void zconfprint(const char *err, ...);
+static void zconf_error(const char *err, ...);
+static void zconferror(const char *err);
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
+
+struct symbol *symbol_hash[SYMBOL_HASHSIZE];
+
+static struct menu *current_menu, *current_entry;
+
+
+
+/* Enabling traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages.  */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* Enabling the token table.  */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+
+{
+	char *string;
+	struct file *file;
+	struct symbol *symbol;
+	struct expr *expr;
+	struct menu *menu;
+	const struct kconf_id *id;
+}
+/* Line 193 of yacc.c.  */
+
+	YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+
+
+/* Copy the second part of user declarations.  */
+
+
+/* Include zconf.hash.c here so it can see the token constants. */
+#include "zconf.hash.c"
+
+
+/* Line 216 of yacc.c.  */
+
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+#  define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+#  define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYSIZE_T size_t
+# else
+#  define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
+#  if ENABLE_NLS
+#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#  endif
+# endif
+# ifndef YY_
+#  define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E.  */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions.  */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int i)
+#else
+static int
+YYID (i)
+    int i;
+#endif
+{
+  return i;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols.  */
+
+# ifdef YYSTACK_USE_ALLOCA
+#  if YYSTACK_USE_ALLOCA
+#   ifdef __GNUC__
+#    define YYSTACK_ALLOC __builtin_alloca
+#   elif defined __BUILTIN_VA_ARG_INCR
+#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+#   elif defined _AIX
+#    define YYSTACK_ALLOC __alloca
+#   elif defined _MSC_VER
+#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+#    define alloca _alloca
+#   else
+#    define YYSTACK_ALLOC alloca
+#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#     ifndef _STDLIB_H
+#      define _STDLIB_H 1
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+   /* Pacify GCC's `empty if-body' warning.  */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+    /* The OS might guarantee only one guard page at the bottom of the stack,
+       and a page size can be as small as 4096 bytes.  So we cannot safely
+       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
+       to allow for a few compiler-allocated temporary stack slots.  */
+#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+#  endif
+# else
+#  define YYSTACK_ALLOC YYMALLOC
+#  define YYSTACK_FREE YYFREE
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+#  endif
+#  if (defined __cplusplus && ! defined _STDLIB_H \
+       && ! ((defined YYMALLOC || defined malloc) \
+	     && (defined YYFREE || defined free)))
+#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#   ifndef _STDLIB_H
+#    define _STDLIB_H 1
+#   endif
+#  endif
+#  ifndef YYMALLOC
+#   define YYMALLOC malloc
+#   if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+#  ifndef YYFREE
+#   define YYFREE free
+#   if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+     && (! defined __cplusplus \
+	 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member.  */
+union yyalloc
+{
+  yytype_int16 yyss;
+  YYSTYPE yyvs;
+  };
+
+/* The size of the maximum gap between one aligned stack and the next.  */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+   N elements.  */
+# define YYSTACK_BYTES(N) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+      + YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if defined __GNUC__ && 1 < __GNUC__
+#   define YYCOPY(To, From, Count) \
+      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+#  else
+#   define YYCOPY(To, From, Count)		\
+      do					\
+	{					\
+	  YYSIZE_T yyi;				\
+	  for (yyi = 0; yyi < (Count); yyi++)	\
+	    (To)[yyi] = (From)[yyi];		\
+	}					\
+      while (YYID (0))
+#  endif
+# endif
+
+/* Relocate STACK from its old location to the new one.  The
+   local variables YYSIZE and YYSTACKSIZE give the old and new number of
+   elements in the stack, and YYPTR gives the new location of the
+   stack.  Advance YYPTR to a properly aligned location for the next
+   stack.  */
+# define YYSTACK_RELOCATE(Stack)					\
+    do									\
+      {									\
+	YYSIZE_T yynewbytes;						\
+	YYCOPY (&yyptr->Stack, Stack, yysize);				\
+	Stack = &yyptr->Stack;						\
+	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+	yyptr += yynewbytes / sizeof (*yyptr);				\
+      }									\
+    while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state.  */
+#define YYFINAL  11
+/* YYLAST -- Last index in YYTABLE.  */
+#define YYLAST   308
+
+/* YYNTOKENS -- Number of terminals.  */
+#define YYNTOKENS  37
+/* YYNNTS -- Number of nonterminals.  */
+#define YYNNTS  50
+/* YYNRULES -- Number of rules.  */
+#define YYNRULES  121
+/* YYNRULES -- Number of states.  */
+#define YYNSTATES  197
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   291
+
+#define YYTRANSLATE(YYX)						\
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
+static const yytype_uint8 yytranslate[] =
+{
+       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
+       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
+      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
+      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
+      35,    36
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+   YYRHS.  */
+static const yytype_uint16 yyprhs[] =
+{
+       0,     0,     3,     6,     8,    11,    13,    14,    17,    20,
+      23,    26,    31,    36,    40,    42,    44,    46,    48,    50,
+      52,    54,    56,    58,    60,    62,    64,    66,    68,    70,
+      74,    77,    81,    84,    88,    91,    92,    95,    98,   101,
+     104,   107,   110,   114,   119,   124,   129,   135,   139,   140,
+     144,   145,   148,   152,   155,   157,   161,   162,   165,   168,
+     171,   174,   177,   182,   186,   189,   193,   198,   199,   202,
+     206,   208,   212,   213,   216,   219,   222,   226,   230,   234,
+     236,   240,   241,   244,   247,   250,   254,   258,   261,   264,
+     267,   268,   271,   274,   277,   282,   286,   287,   290,   293,
+     296,   297,   300,   302,   304,   307,   310,   313,   315,   318,
+     319,   322,   324,   328,   332,   336,   339,   343,   347,   349,
+     351,   352
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS.  */
+static const yytype_int8 yyrhs[] =
+{
+      38,     0,    -1,    82,    39,    -1,    39,    -1,    64,    40,
+      -1,    40,    -1,    -1,    40,    42,    -1,    40,    56,    -1,
+      40,    68,    -1,    40,    81,    -1,    40,    27,     1,    32,
+      -1,    40,    41,     1,    32,    -1,    40,     1,    32,    -1,
+      16,    -1,    18,    -1,    19,    -1,    21,    -1,    17,    -1,
+      22,    -1,    20,    -1,    23,    -1,    26,    -1,    32,    -1,
+      62,    -1,    72,    -1,    45,    -1,    47,    -1,    70,    -1,
+      27,     1,    32,    -1,     1,    32,    -1,    10,    27,    32,
+      -1,    44,    48,    -1,    11,    27,    32,    -1,    46,    48,
+      -1,    -1,    48,    49,    -1,    48,    50,    -1,    48,    76,
+      -1,    48,    74,    -1,    48,    43,    -1,    48,    32,    -1,
+      19,    79,    32,    -1,    18,    80,    83,    32,    -1,    20,
+      84,    83,    32,    -1,    21,    27,    83,    32,    -1,    22,
+      85,    85,    83,    32,    -1,    24,    51,    32,    -1,    -1,
+      51,    27,    52,    -1,    -1,    35,    80,    -1,     7,    86,
+      32,    -1,    53,    57,    -1,    81,    -1,    54,    59,    55,
+      -1,    -1,    57,    58,    -1,    57,    76,    -1,    57,    74,
+      -1,    57,    32,    -1,    57,    43,    -1,    18,    80,    83,
+      32,    -1,    19,    79,    32,    -1,    17,    32,    -1,    26,
+      83,    32,    -1,    20,    27,    83,    32,    -1,    -1,    59,
+      42,    -1,    14,    84,    82,    -1,    81,    -1,    60,    63,
+      61,    -1,    -1,    63,    42,    -1,    63,    68,    -1,    63,
+      56,    -1,     3,    80,    82,    -1,     4,    80,    32,    -1,
+      65,    77,    75,    -1,    81,    -1,    66,    69,    67,    -1,
+      -1,    69,    42,    -1,    69,    68,    -1,    69,    56,    -1,
+       6,    80,    32,    -1,     9,    80,    32,    -1,    71,    75,
+      -1,    12,    32,    -1,    73,    13,    -1,    -1,    75,    76,
+      -1,    75,    32,    -1,    75,    43,    -1,    16,    25,    84,
+      32,    -1,    16,    84,    32,    -1,    -1,    77,    78,    -1,
+      77,    32,    -1,    23,    83,    -1,    -1,    80,    83,    -1,
+      27,    -1,    28,    -1,     5,    32,    -1,     8,    32,    -1,
+      15,    32,    -1,    32,    -1,    82,    32,    -1,    -1,    14,
+      84,    -1,    85,    -1,    85,    35,    85,    -1,    85,    29,
+      85,    -1,    31,    84,    30,    -1,    36,    84,    -1,    84,
+      33,    84,    -1,    84,    34,    84,    -1,    27,    -1,    28,
+      -1,    -1,    27,    -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+static const yytype_uint16 yyrline[] =
+{
+       0,   104,   104,   104,   106,   106,   108,   110,   111,   112,
+     113,   114,   115,   119,   123,   123,   123,   123,   123,   123,
+     123,   123,   123,   127,   128,   129,   130,   131,   132,   136,
+     137,   143,   151,   157,   165,   175,   177,   178,   179,   180,
+     181,   182,   185,   193,   199,   209,   215,   221,   224,   226,
+     237,   238,   243,   252,   257,   265,   268,   270,   271,   272,
+     273,   274,   277,   283,   294,   300,   305,   315,   317,   322,
+     330,   338,   341,   343,   344,   345,   350,   357,   364,   369,
+     377,   380,   382,   383,   384,   387,   395,   402,   409,   415,
+     422,   424,   425,   426,   429,   433,   441,   443,   444,   447,
+     454,   456,   461,   462,   465,   466,   467,   471,   472,   475,
+     476,   479,   480,   481,   482,   483,   484,   485,   488,   489,
+     492,   493
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
+static const char *const yytname[] =
+{
+  "$end", "error", "$undefined", "T_MAINMENU", "T_MENU", "T_ENDMENU",
+  "T_SOURCE", "T_CHOICE", "T_ENDCHOICE", "T_COMMENT", "T_CONFIG",
+  "T_MENUCONFIG", "T_HELP", "T_HELPTEXT", "T_IF", "T_ENDIF", "T_DEPENDS",
+  "T_OPTIONAL", "T_PROMPT", "T_TYPE", "T_DEFAULT", "T_SELECT", "T_RANGE",
+  "T_VISIBLE", "T_OPTION", "T_ON", "T_RESET", "T_WORD", "T_WORD_QUOTE",
+  "T_UNEQUAL", "T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND",
+  "T_EQUAL", "T_NOT", "$accept", "input", "start", "stmt_list",
+  "option_name", "common_stmt", "option_error", "config_entry_start",
+  "config_stmt", "menuconfig_entry_start", "menuconfig_stmt",
+  "config_option_list", "config_option", "symbol_option",
+  "symbol_option_list", "symbol_option_arg", "choice", "choice_entry",
+  "choice_end", "choice_stmt", "choice_option_list", "choice_option",
+  "choice_block", "if_entry", "if_end", "if_stmt", "if_block",
+  "mainmenu_stmt", "menu", "menu_entry", "menu_end", "menu_stmt",
+  "menu_block", "source_stmt", "comment", "comment_stmt", "help_start",
+  "help", "depends_list", "depends", "visibility_list", "visible",
+  "prompt_stmt_opt", "prompt", "end", "nl", "if_expr", "expr", "symbol",
+  "word_opt", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+   token YYLEX-NUM.  */
+static const yytype_uint16 yytoknum[] =
+{
+       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
+     265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
+     275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
+     285,   286,   287,   288,   289,   290,   291
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const yytype_uint8 yyr1[] =
+{
+       0,    37,    38,    38,    39,    39,    40,    40,    40,    40,
+      40,    40,    40,    40,    41,    41,    41,    41,    41,    41,
+      41,    41,    41,    42,    42,    42,    42,    42,    42,    43,
+      43,    44,    45,    46,    47,    48,    48,    48,    48,    48,
+      48,    48,    49,    49,    49,    49,    49,    50,    51,    51,
+      52,    52,    53,    54,    55,    56,    57,    57,    57,    57,
+      57,    57,    58,    58,    58,    58,    58,    59,    59,    60,
+      61,    62,    63,    63,    63,    63,    64,    65,    66,    67,
+      68,    69,    69,    69,    69,    70,    71,    72,    73,    74,
+      75,    75,    75,    75,    76,    76,    77,    77,    77,    78,
+      79,    79,    80,    80,    81,    81,    81,    82,    82,    83,
+      83,    84,    84,    84,    84,    84,    84,    84,    85,    85,
+      86,    86
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+static const yytype_uint8 yyr2[] =
+{
+       0,     2,     2,     1,     2,     1,     0,     2,     2,     2,
+       2,     4,     4,     3,     1,     1,     1,     1,     1,     1,
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     3,
+       2,     3,     2,     3,     2,     0,     2,     2,     2,     2,
+       2,     2,     3,     4,     4,     4,     5,     3,     0,     3,
+       0,     2,     3,     2,     1,     3,     0,     2,     2,     2,
+       2,     2,     4,     3,     2,     3,     4,     0,     2,     3,
+       1,     3,     0,     2,     2,     2,     3,     3,     3,     1,
+       3,     0,     2,     2,     2,     3,     3,     2,     2,     2,
+       0,     2,     2,     2,     4,     3,     0,     2,     2,     2,
+       0,     2,     1,     1,     2,     2,     2,     1,     2,     0,
+       2,     1,     3,     3,     3,     2,     3,     3,     1,     1,
+       0,     1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
+   means the default is an error.  */
+static const yytype_uint8 yydefact[] =
+{
+       6,     0,   107,     0,     3,     0,     6,     6,   102,   103,
+       0,     1,     0,     0,     0,     0,   120,     0,     0,     0,
+       0,     0,     0,    14,    18,    15,    16,    20,    17,    19,
+      21,    22,     0,    23,     0,     7,    35,    26,    35,    27,
+      56,    67,     8,    72,    24,    96,    81,     9,    28,    90,
+      25,    10,     0,   108,     2,    76,    13,     0,   104,     0,
+     121,     0,   105,     0,     0,     0,   118,   119,     0,     0,
+       0,   111,   106,     0,     0,     0,     0,     0,     0,     0,
+      90,     0,     0,    77,    85,    52,    86,    31,    33,     0,
+     115,     0,     0,    69,     0,     0,    11,    12,     0,     0,
+       0,     0,   100,     0,     0,     0,    48,     0,    41,    40,
+      36,    37,     0,    39,    38,     0,     0,   100,     0,   109,
+      60,    61,    57,    59,    58,    68,    55,    54,    73,    75,
+      71,    74,    70,   109,    98,     0,    97,    82,    84,    80,
+      83,    79,    92,    93,    91,   114,   116,   117,   113,   112,
+      30,    88,     0,     0,   109,     0,   109,   109,   109,     0,
+       0,     0,    89,    64,   109,     0,   109,     0,     0,    99,
+       0,    95,     0,    42,   101,     0,     0,   109,    50,    47,
+      29,     0,    63,     0,   110,    65,    94,    43,    44,    45,
+       0,     0,    49,    62,    66,    46,    51
+};
+
+/* YYDEFGOTO[NTERM-NUM].  */
+static const yytype_int16 yydefgoto[] =
+{
+      -1,     3,     4,     5,    34,    35,   109,    36,    37,    38,
+      39,    75,   110,   111,   160,   192,    40,    41,   126,    42,
+      77,   122,    78,    43,   130,    44,    79,     6,    45,    46,
+     139,    47,    81,    48,    49,    50,   112,   113,    82,   114,
+      80,   136,   155,   156,    51,     7,   168,    70,    71,    61
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+   STATE-NUM.  */
+#define YYPACT_NINF -127
+static const yytype_int16 yypact[] =
+{
+       7,    30,  -127,     9,  -127,   160,  -127,    13,  -127,  -127,
+     -13,  -127,    14,    30,    17,    30,    -4,    21,    30,    35,
+      38,    16,    43,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
+    -127,  -127,    82,  -127,    91,  -127,  -127,  -127,  -127,  -127,
+    -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
+    -127,  -127,   193,  -127,  -127,    72,  -127,    73,  -127,    95,
+    -127,    98,  -127,   101,   112,   124,  -127,  -127,    16,    16,
+      63,    19,  -127,   127,   130,   102,   131,    62,   276,   265,
+       4,   265,   222,  -127,  -127,  -127,  -127,  -127,  -127,    26,
+    -127,    16,    16,    72,    71,    71,  -127,  -127,   152,   153,
+      -7,    30,    30,    16,   161,    71,  -127,   194,  -127,  -127,
+    -127,  -127,   183,  -127,  -127,   173,    30,    30,   179,   203,
+    -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
+    -127,  -127,  -127,   203,  -127,   251,  -127,  -127,  -127,  -127,
+    -127,  -127,  -127,  -127,  -127,  -127,   184,  -127,  -127,  -127,
+    -127,  -127,    16,   260,   203,   189,   203,     8,   203,    71,
+      23,   192,  -127,  -127,   203,   202,   203,    16,   214,  -127,
+     266,  -127,   215,  -127,  -127,   218,   219,   203,   200,  -127,
+    -127,   221,  -127,   231,   139,  -127,  -127,  -127,  -127,  -127,
+     232,    30,  -127,  -127,  -127,  -127,  -127
+};
+
+/* YYPGOTO[NTERM-NUM].  */
+static const yytype_int16 yypgoto[] =
+{
+    -127,  -127,   261,   271,  -127,     6,   -71,  -127,  -127,  -127,
+    -127,   250,  -127,  -127,  -127,  -127,  -127,  -127,  -127,   -46,
+    -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
+    -127,   110,  -127,  -127,  -127,  -127,  -127,   212,   216,   -69,
+    -127,  -127,   178,    -1,    12,    -9,  -126,   -66,   -90,  -127
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
+   positive, shift that token.  If negative, reduce the rule which
+   number is the opposite.  If zero, do what YYDEFACT says.
+   If YYTABLE_NINF, syntax error.  */
+#define YYTABLE_NINF -88
+static const yytype_int16 yytable[] =
+{
+      10,    55,    89,    90,   148,   149,   121,   169,   124,    11,
+       1,   143,    57,   144,    59,   159,     1,    63,   152,     2,
+      66,    67,   167,    60,    68,   146,   147,   133,   172,    69,
+     174,   175,   176,   129,   153,   138,   134,   157,   181,     2,
+     183,    91,    92,    66,    67,    53,    56,    68,    94,    58,
+     178,   190,    69,    62,    95,   179,   145,     8,     9,    91,
+      92,    93,    64,    98,   143,    65,   144,   -53,   -53,   177,
+     -53,   -53,   -53,   -53,    99,    72,   -53,   -53,   100,   115,
+     116,   117,   118,    73,   125,   128,   170,   137,   119,   107,
+     127,   132,    74,   141,   120,     2,    91,    92,    66,    67,
+     154,   184,   -32,    98,    53,    83,   -32,   -32,   -32,   -32,
+     -32,   -32,   -32,   -32,    99,   164,   -32,   -32,   100,   -32,
+     101,   102,   103,   104,   105,   -32,   106,    84,   -32,   107,
+      85,   -34,    98,    86,   108,   -34,   -34,   -34,   -34,   -34,
+     -34,   -34,   -34,    99,    87,   -34,   -34,   100,   -34,   101,
+     102,   103,   104,   105,   -34,   106,    88,   -34,   107,    96,
+      -5,    12,    97,   108,    13,    14,    15,    16,    17,    18,
+      19,    20,    91,    92,    21,    22,    23,    24,    25,    26,
+      27,    28,    29,    30,   150,   151,    31,    32,   158,   131,
+     196,   140,    33,    -4,    12,   161,   162,    13,    14,    15,
+      16,    17,    18,    19,    20,   163,   166,    21,    22,    23,
+      24,    25,    26,    27,    28,    29,    30,   167,    92,    31,
+      32,   173,   -87,    98,   180,    33,   -87,   -87,   -87,   -87,
+     -87,   -87,   -87,   -87,   182,   191,   -87,   -87,   100,   -87,
+     -87,   -87,   -87,   -87,   -87,   -87,   185,   187,   -87,   107,
+     188,   189,    98,   193,   142,   -78,   -78,   -78,   -78,   -78,
+     -78,   -78,   -78,   194,   195,   -78,   -78,   100,    54,    13,
+      14,    15,    16,    17,    18,    19,    20,    52,   107,    21,
+      22,    14,    15,   142,    17,    18,    19,    20,    76,   123,
+      21,    22,   171,    91,    92,   165,   135,    33,   186,    91,
+      92,     0,     0,     0,     0,     0,     0,     0,    33
+};
+
+static const yytype_int16 yycheck[] =
+{
+       1,    10,    68,    69,    94,    95,    77,   133,    77,     0,
+       3,    82,    13,    82,    15,   105,     3,    18,    25,    32,
+      27,    28,    14,    27,    31,    91,    92,    23,   154,    36,
+     156,   157,   158,    79,   100,    81,    32,   103,   164,    32,
+     166,    33,    34,    27,    28,    32,    32,    31,    29,    32,
+      27,   177,    36,    32,    35,    32,    30,    27,    28,    33,
+      34,    70,    27,     1,   135,    27,   135,     5,     6,   159,
+       8,     9,    10,    11,    12,    32,    14,    15,    16,    17,
+      18,    19,    20,     1,    78,    79,   152,    81,    26,    27,
+      78,    79,     1,    81,    32,    32,    33,    34,    27,    28,
+     101,   167,     0,     1,    32,    32,     4,     5,     6,     7,
+       8,     9,    10,    11,    12,   116,    14,    15,    16,    17,
+      18,    19,    20,    21,    22,    23,    24,    32,    26,    27,
+      32,     0,     1,    32,    32,     4,     5,     6,     7,     8,
+       9,    10,    11,    12,    32,    14,    15,    16,    17,    18,
+      19,    20,    21,    22,    23,    24,    32,    26,    27,    32,
+       0,     1,    32,    32,     4,     5,     6,     7,     8,     9,
+      10,    11,    33,    34,    14,    15,    16,    17,    18,    19,
+      20,    21,    22,    23,    32,    32,    26,    27,    27,    79,
+     191,    81,    32,     0,     1,     1,    13,     4,     5,     6,
+       7,     8,     9,    10,    11,    32,    27,    14,    15,    16,
+      17,    18,    19,    20,    21,    22,    23,    14,    34,    26,
+      27,    32,     0,     1,    32,    32,     4,     5,     6,     7,
+       8,     9,    10,    11,    32,    35,    14,    15,    16,    17,
+      18,    19,    20,    21,    22,    23,    32,    32,    26,    27,
+      32,    32,     1,    32,    32,     4,     5,     6,     7,     8,
+       9,    10,    11,    32,    32,    14,    15,    16,     7,     4,
+       5,     6,     7,     8,     9,    10,    11,     6,    27,    14,
+      15,     5,     6,    32,     8,     9,    10,    11,    38,    77,
+      14,    15,    32,    33,    34,   117,    80,    32,    32,    33,
+      34,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    32
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+   symbol of state STATE-NUM.  */
+static const yytype_uint8 yystos[] =
+{
+       0,     3,    32,    38,    39,    40,    64,    82,    27,    28,
+      80,     0,     1,     4,     5,     6,     7,     8,     9,    10,
+      11,    14,    15,    16,    17,    18,    19,    20,    21,    22,
+      23,    26,    27,    32,    41,    42,    44,    45,    46,    47,
+      53,    54,    56,    60,    62,    65,    66,    68,    70,    71,
+      72,    81,    40,    32,    39,    82,    32,    80,    32,    80,
+      27,    86,    32,    80,    27,    27,    27,    28,    31,    36,
+      84,    85,    32,     1,     1,    48,    48,    57,    59,    63,
+      77,    69,    75,    32,    32,    32,    32,    32,    32,    84,
+      84,    33,    34,    82,    29,    35,    32,    32,     1,    12,
+      16,    18,    19,    20,    21,    22,    24,    27,    32,    43,
+      49,    50,    73,    74,    76,    17,    18,    19,    20,    26,
+      32,    43,    58,    74,    76,    42,    55,    81,    42,    56,
+      61,    68,    81,    23,    32,    75,    78,    42,    56,    67,
+      68,    81,    32,    43,    76,    30,    84,    84,    85,    85,
+      32,    32,    25,    84,    80,    79,    80,    84,    27,    85,
+      51,     1,    13,    32,    80,    79,    27,    14,    83,    83,
+      84,    32,    83,    32,    83,    83,    83,    85,    27,    32,
+      32,    83,    32,    83,    84,    32,    32,    32,    32,    32,
+      83,    35,    52,    32,    32,    32,    80
+};
+
+#define yyerrok		(yyerrstatus = 0)
+#define yyclearin	(yychar = YYEMPTY)
+#define YYEMPTY		(-2)
+#define YYEOF		0
+
+#define YYACCEPT	goto yyacceptlab
+#define YYABORT		goto yyabortlab
+#define YYERROR		goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror.  This remains here temporarily
+   to ease the transition to the new meaning of YYERROR, for GCC.
+   Once GCC version 2 has supplanted version 1, this can go.  */
+
+#define YYFAIL		goto yyerrlab
+
+#define YYRECOVERING()  (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value)					\
+do								\
+  if (yychar == YYEMPTY && yylen == 1)				\
+    {								\
+      yychar = (Token);						\
+      yylval = (Value);						\
+      yytoken = YYTRANSLATE (yychar);				\
+      YYPOPSTACK (1);						\
+      goto yybackup;						\
+    }								\
+  else								\
+    {								\
+      yyerror (YY_("syntax error: cannot back up")); \
+      YYERROR;							\
+    }								\
+while (YYID (0))
+
+
+#define YYTERROR	1
+#define YYERRCODE	256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)				\
+    do									\
+      if (YYID (N))                                                    \
+	{								\
+	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
+	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
+	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
+	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
+	}								\
+      else								\
+	{								\
+	  (Current).first_line   = (Current).last_line   =		\
+	    YYRHSLOC (Rhs, 0).last_line;				\
+	  (Current).first_column = (Current).last_column =		\
+	    YYRHSLOC (Rhs, 0).last_column;				\
+	}								\
+    while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+   This macro was not mandated originally: define only if we know
+   we won't break user code: when these are the locations we know.  */
+
+#ifndef YY_LOCATION_PRINT
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+#  define YY_LOCATION_PRINT(File, Loc)			\
+     fprintf (File, "%d.%d-%d.%d",			\
+	      (Loc).first_line, (Loc).first_column,	\
+	      (Loc).last_line,  (Loc).last_column)
+# else
+#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments.  */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (YYLEX_PARAM)
+#else
+# define YYLEX yylex ()
+#endif
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args)			\
+do {						\
+  if (yydebug)					\
+    YYFPRINTF Args;				\
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)			  \
+do {									  \
+  if (yydebug)								  \
+    {									  \
+      YYFPRINTF (stderr, "%s ", Title);					  \
+      yy_symbol_print (stderr,						  \
+		  Type, Value); \
+      YYFPRINTF (stderr, "\n");						  \
+    }									  \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep)
+    FILE *yyoutput;
+    int yytype;
+    YYSTYPE const * const yyvaluep;
+#endif
+{
+  if (!yyvaluep)
+    return;
+# ifdef YYPRINT
+  if (yytype < YYNTOKENS)
+    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+  YYUSE (yyoutput);
+# endif
+  switch (yytype)
+    {
+      default:
+	break;
+    }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep)
+    FILE *yyoutput;
+    int yytype;
+    YYSTYPE const * const yyvaluep;
+#endif
+{
+  if (yytype < YYNTOKENS)
+    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+  else
+    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+  yy_symbol_value_print (yyoutput, yytype, yyvaluep);
+  YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included).                                                   |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
+#else
+static void
+yy_stack_print (bottom, top)
+    yytype_int16 *bottom;
+    yytype_int16 *top;
+#endif
+{
+  YYFPRINTF (stderr, "Stack now");
+  for (; bottom <= top; ++bottom)
+    YYFPRINTF (stderr, " %d", *bottom);
+  YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top)				\
+do {								\
+  if (yydebug)							\
+    yy_stack_print ((Bottom), (Top));				\
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced.  |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
+#else
+static void
+yy_reduce_print (yyvsp, yyrule)
+    YYSTYPE *yyvsp;
+    int yyrule;
+#endif
+{
+  int yynrhs = yyr2[yyrule];
+  int yyi;
+  unsigned long int yylno = yyrline[yyrule];
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+	     yyrule - 1, yylno);
+  /* The symbols being reduced.  */
+  for (yyi = 0; yyi < yynrhs; yyi++)
+    {
+      fprintf (stderr, "   $%d = ", yyi + 1);
+      yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+		       &(yyvsp[(yyi + 1) - (yynrhs)])
+		       		       );
+      fprintf (stderr, "\n");
+    }
+}
+
+# define YY_REDUCE_PRINT(Rule)		\
+do {					\
+  if (yydebug)				\
+    yy_reduce_print (yyvsp, Rule); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace.  It is left uninitialized so that
+   multiple parsers can coexist.  */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks.  */
+#ifndef	YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+   if the built-in stack extension method is used).
+
+   Do not make this value too large; the results are undefined if
+   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+   evaluated with infinite-precision integer arithmetic.  */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+#  if defined __GLIBC__ && defined _STRING_H
+#   define yystrlen strlen
+#  else
+/* Return the length of YYSTR.  */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+    const char *yystr;
+#endif
+{
+  YYSIZE_T yylen;
+  for (yylen = 0; yystr[yylen]; yylen++)
+    continue;
+  return yylen;
+}
+#  endif
+# endif
+
+# ifndef yystpcpy
+#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+#   define yystpcpy stpcpy
+#  else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+   YYDEST.  */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+    char *yydest;
+    const char *yysrc;
+#endif
+{
+  char *yyd = yydest;
+  const char *yys = yysrc;
+
+  while ((*yyd++ = *yys++) != '\0')
+    continue;
+
+  return yyd - 1;
+}
+#  endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+   quotes and backslashes, so that it's suitable for yyerror.  The
+   heuristic is that double-quoting is unnecessary unless the string
+   contains an apostrophe, a comma, or backslash (other than
+   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
+   null, do not copy; instead, return the length of what the result
+   would have been.  */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+  if (*yystr == '"')
+    {
+      YYSIZE_T yyn = 0;
+      char const *yyp = yystr;
+
+      for (;;)
+	switch (*++yyp)
+	  {
+	  case '\'':
+	  case ',':
+	    goto do_not_strip_quotes;
+
+	  case '\\':
+	    if (*++yyp != '\\')
+	      goto do_not_strip_quotes;
+	    /* Fall through.  */
+	  default:
+	    if (yyres)
+	      yyres[yyn] = *yyp;
+	    yyn++;
+	    break;
+
+	  case '"':
+	    if (yyres)
+	      yyres[yyn] = '\0';
+	    return yyn;
+	  }
+    do_not_strip_quotes: ;
+    }
+
+  if (! yyres)
+    return yystrlen (yystr);
+
+  return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+   YYCHAR while in state YYSTATE.  Return the number of bytes copied,
+   including the terminating null byte.  If YYRESULT is null, do not
+   copy anything; just return the number of bytes that would be
+   copied.  As a special case, return 0 if an ordinary "syntax error"
+   message will do.  Return YYSIZE_MAXIMUM if overflow occurs during
+   size calculation.  */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+  int yyn = yypact[yystate];
+
+  if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+    return 0;
+  else
+    {
+      int yytype = YYTRANSLATE (yychar);
+      YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+      YYSIZE_T yysize = yysize0;
+      YYSIZE_T yysize1;
+      int yysize_overflow = 0;
+      enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+      char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+      int yyx;
+
+# if 0
+      /* This is so xgettext sees the translatable formats that are
+	 constructed on the fly.  */
+      YY_("syntax error, unexpected %s");
+      YY_("syntax error, unexpected %s, expecting %s");
+      YY_("syntax error, unexpected %s, expecting %s or %s");
+      YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+      YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+      char *yyfmt;
+      char const *yyf;
+      static char const yyunexpected[] = "syntax error, unexpected %s";
+      static char const yyexpecting[] = ", expecting %s";
+      static char const yyor[] = " or %s";
+      char yyformat[sizeof yyunexpected
+		    + sizeof yyexpecting - 1
+		    + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+		       * (sizeof yyor - 1))];
+      char const *yyprefix = yyexpecting;
+
+      /* Start YYX at -YYN if negative to avoid negative indexes in
+	 YYCHECK.  */
+      int yyxbegin = yyn < 0 ? -yyn : 0;
+
+      /* Stay within bounds of both yycheck and yytname.  */
+      int yychecklim = YYLAST - yyn + 1;
+      int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+      int yycount = 1;
+
+      yyarg[0] = yytname[yytype];
+      yyfmt = yystpcpy (yyformat, yyunexpected);
+
+      for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+	if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+	  {
+	    if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+	      {
+		yycount = 1;
+		yysize = yysize0;
+		yyformat[sizeof yyunexpected - 1] = '\0';
+		break;
+	      }
+	    yyarg[yycount++] = yytname[yyx];
+	    yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+	    yysize_overflow |= (yysize1 < yysize);
+	    yysize = yysize1;
+	    yyfmt = yystpcpy (yyfmt, yyprefix);
+	    yyprefix = yyor;
+	  }
+
+      yyf = YY_(yyformat);
+      yysize1 = yysize + yystrlen (yyf);
+      yysize_overflow |= (yysize1 < yysize);
+      yysize = yysize1;
+
+      if (yysize_overflow)
+	return YYSIZE_MAXIMUM;
+
+      if (yyresult)
+	{
+	  /* Avoid sprintf, as that infringes on the user's name space.
+	     Don't have undefined behavior even if the translation
+	     produced a string with the wrong number of "%s"s.  */
+	  char *yyp = yyresult;
+	  int yyi = 0;
+	  while ((*yyp = *yyf) != '\0')
+	    {
+	      if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+		{
+		  yyp += yytnamerr (yyp, yyarg[yyi++]);
+		  yyf += 2;
+		}
+	      else
+		{
+		  yyp++;
+		  yyf++;
+		}
+	    }
+	}
+      return yysize;
+    }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol.  |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep)
+    const char *yymsg;
+    int yytype;
+    YYSTYPE *yyvaluep;
+#endif
+{
+  YYUSE (yyvaluep);
+
+  if (!yymsg)
+    yymsg = "Deleting";
+  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+  switch (yytype)
+    {
+      case 54: /* "choice_entry" */
+
+	{
+	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+		(yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
+	if (current_menu == (yyvaluep->menu))
+		menu_end_menu();
+};
+
+	break;
+      case 60: /* "if_entry" */
+
+	{
+	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+		(yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
+	if (current_menu == (yyvaluep->menu))
+		menu_end_menu();
+};
+
+	break;
+      case 66: /* "menu_entry" */
+
+	{
+	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+		(yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
+	if (current_menu == (yyvaluep->menu))
+		menu_end_menu();
+};
+
+	break;
+
+      default:
+	break;
+    }
+}
+
+
+/* Prevent warnings from -Wmissing-prototypes.  */
+
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+/* The look-ahead symbol.  */
+int yychar;
+
+/* The semantic value of the look-ahead symbol.  */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far.  */
+int yynerrs;
+
+
+
+/*----------.
+| yyparse.  |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+    void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+
+#endif
+#endif
+{
+  
+  int yystate;
+  int yyn;
+  int yyresult;
+  /* Number of tokens to shift before error messages enabled.  */
+  int yyerrstatus;
+  /* Look-ahead token as an internal (translated) token number.  */
+  int yytoken = 0;
+#if YYERROR_VERBOSE
+  /* Buffer for error messages, and its allocated size.  */
+  char yymsgbuf[128];
+  char *yymsg = yymsgbuf;
+  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+  /* Three stacks and their tools:
+     `yyss': related to states,
+     `yyvs': related to semantic values,
+     `yyls': related to locations.
+
+     Refer to the stacks thru separate pointers, to allow yyoverflow
+     to reallocate them elsewhere.  */
+
+  /* The state stack.  */
+  yytype_int16 yyssa[YYINITDEPTH];
+  yytype_int16 *yyss = yyssa;
+  yytype_int16 *yyssp;
+
+  /* The semantic value stack.  */
+  YYSTYPE yyvsa[YYINITDEPTH];
+  YYSTYPE *yyvs = yyvsa;
+  YYSTYPE *yyvsp;
+
+
+
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))
+
+  YYSIZE_T yystacksize = YYINITDEPTH;
+
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+
+
+  /* The number of symbols on the RHS of the reduced rule.
+     Keep to zero when no symbol should be popped.  */
+  int yylen = 0;
+
+  YYDPRINTF ((stderr, "Starting parse\n"));
+
+  yystate = 0;
+  yyerrstatus = 0;
+  yynerrs = 0;
+  yychar = YYEMPTY;		/* Cause a token to be read.  */
+
+  /* Initialize stack pointers.
+     Waste one element of value and location stack
+     so that they stay on the same level as the state stack.
+     The wasted elements are never initialized.  */
+
+  yyssp = yyss;
+  yyvsp = yyvs;
+
+  goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate.  |
+`------------------------------------------------------------*/
+ yynewstate:
+  /* In all cases, when you get here, the value and location stacks
+     have just been pushed.  So pushing a state here evens the stacks.  */
+  yyssp++;
+
+ yysetstate:
+  *yyssp = yystate;
+
+  if (yyss + yystacksize - 1 <= yyssp)
+    {
+      /* Get the current used size of the three stacks, in elements.  */
+      YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+      {
+	/* Give user a chance to reallocate the stack.  Use copies of
+	   these so that the &'s don't force the real ones into
+	   memory.  */
+	YYSTYPE *yyvs1 = yyvs;
+	yytype_int16 *yyss1 = yyss;
+
+
+	/* Each stack pointer address is followed by the size of the
+	   data in use in that stack, in bytes.  This used to be a
+	   conditional around just the two extra args, but that might
+	   be undefined if yyoverflow is a macro.  */
+	yyoverflow (YY_("memory exhausted"),
+		    &yyss1, yysize * sizeof (*yyssp),
+		    &yyvs1, yysize * sizeof (*yyvsp),
+
+		    &yystacksize);
+
+	yyss = yyss1;
+	yyvs = yyvs1;
+      }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+      goto yyexhaustedlab;
+# else
+      /* Extend the stack our own way.  */
+      if (YYMAXDEPTH <= yystacksize)
+	goto yyexhaustedlab;
+      yystacksize *= 2;
+      if (YYMAXDEPTH < yystacksize)
+	yystacksize = YYMAXDEPTH;
+
+      {
+	yytype_int16 *yyss1 = yyss;
+	union yyalloc *yyptr =
+	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+	if (! yyptr)
+	  goto yyexhaustedlab;
+	YYSTACK_RELOCATE (yyss);
+	YYSTACK_RELOCATE (yyvs);
+
+#  undef YYSTACK_RELOCATE
+	if (yyss1 != yyssa)
+	  YYSTACK_FREE (yyss1);
+      }
+# endif
+#endif /* no yyoverflow */
+
+      yyssp = yyss + yysize - 1;
+      yyvsp = yyvs + yysize - 1;
+
+
+      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+		  (unsigned long int) yystacksize));
+
+      if (yyss + yystacksize - 1 <= yyssp)
+	YYABORT;
+    }
+
+  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+  goto yybackup;
+
+/*-----------.
+| yybackup.  |
+`-----------*/
+yybackup:
+
+  /* Do appropriate processing given the current state.  Read a
+     look-ahead token if we need one and don't already have one.  */
+
+  /* First try to decide what to do without reference to look-ahead token.  */
+  yyn = yypact[yystate];
+  if (yyn == YYPACT_NINF)
+    goto yydefault;
+
+  /* Not known => get a look-ahead token if don't already have one.  */
+
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  if (yychar == YYEMPTY)
+    {
+      YYDPRINTF ((stderr, "Reading a token: "));
+      yychar = YYLEX;
+    }
+
+  if (yychar <= YYEOF)
+    {
+      yychar = yytoken = YYEOF;
+      YYDPRINTF ((stderr, "Now at end of input.\n"));
+    }
+  else
+    {
+      yytoken = YYTRANSLATE (yychar);
+      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+    }
+
+  /* If the proper action on seeing token YYTOKEN is to reduce or to
+     detect an error, take that action.  */
+  yyn += yytoken;
+  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+    goto yydefault;
+  yyn = yytable[yyn];
+  if (yyn <= 0)
+    {
+      if (yyn == 0 || yyn == YYTABLE_NINF)
+	goto yyerrlab;
+      yyn = -yyn;
+      goto yyreduce;
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+
+  /* Shift the look-ahead token.  */
+  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+  /* Discard the shifted token unless it is eof.  */
+  if (yychar != YYEOF)
+    yychar = YYEMPTY;
+
+  yystate = yyn;
+  *++yyvsp = yylval;
+
+  goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state.  |
+`-----------------------------------------------------------*/
+yydefault:
+  yyn = yydefact[yystate];
+  if (yyn == 0)
+    goto yyerrlab;
+  goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction.  |
+`-----------------------------*/
+yyreduce:
+  /* yyn is the number of a rule to reduce with.  */
+  yylen = yyr2[yyn];
+
+  /* If YYLEN is nonzero, implement the default value of the action:
+     `$$ = $1'.
+
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
+     users should not rely upon it.  Assigning to YYVAL
+     unconditionally makes the parser a bit smaller, and it avoids a
+     GCC warning that YYVAL may be used uninitialized.  */
+  yyval = yyvsp[1-yylen];
+
+
+  YY_REDUCE_PRINT (yyn);
+  switch (yyn)
+    {
+        case 10:
+
+    { zconf_error("unexpected end statement"); ;}
+    break;
+
+  case 11:
+
+    { zconf_error("unknown statement \"%s\"", (yyvsp[(2) - (4)].string)); ;}
+    break;
+
+  case 12:
+
+    {
+	zconf_error("unexpected option \"%s\"", kconf_id_strings + (yyvsp[(2) - (4)].id)->name);
+;}
+    break;
+
+  case 13:
+
+    { zconf_error("invalid statement"); ;}
+    break;
+
+  case 29:
+
+    { zconf_error("unknown option \"%s\"", (yyvsp[(1) - (3)].string)); ;}
+    break;
+
+  case 30:
+
+    { zconf_error("invalid option"); ;}
+    break;
+
+  case 31:
+
+    {
+	struct symbol *sym = sym_lookup((yyvsp[(2) - (3)].string), 0);
+	sym->flags |= SYMBOL_OPTIONAL;
+	menu_add_entry(sym);
+	printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), (yyvsp[(2) - (3)].string));
+;}
+    break;
+
+  case 32:
+
+    {
+	menu_end_entry();
+	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 33:
+
+    {
+	struct symbol *sym = sym_lookup((yyvsp[(2) - (3)].string), 0);
+	sym->flags |= SYMBOL_OPTIONAL;
+	menu_add_entry(sym);
+	printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), (yyvsp[(2) - (3)].string));
+;}
+    break;
+
+  case 34:
+
+    {
+	if (current_entry->prompt)
+		current_entry->prompt->type = P_MENU;
+	else
+		zconfprint("warning: menuconfig statement without prompt");
+	menu_end_entry();
+	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 42:
+
+    {
+	menu_set_type((yyvsp[(1) - (3)].id)->stype);
+	printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
+		zconf_curname(), zconf_lineno(),
+		(yyvsp[(1) - (3)].id)->stype);
+;}
+    break;
+
+  case 43:
+
+    {
+	menu_add_prompt(P_PROMPT, (yyvsp[(2) - (4)].string), (yyvsp[(3) - (4)].expr));
+	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 44:
+
+    {
+	menu_add_expr(P_DEFAULT, (yyvsp[(2) - (4)].expr), (yyvsp[(3) - (4)].expr));
+	if ((yyvsp[(1) - (4)].id)->stype != S_UNKNOWN)
+		menu_set_type((yyvsp[(1) - (4)].id)->stype);
+	printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
+		zconf_curname(), zconf_lineno(),
+		(yyvsp[(1) - (4)].id)->stype);
+;}
+    break;
+
+  case 45:
+
+    {
+	menu_add_symbol(P_SELECT, sym_lookup((yyvsp[(2) - (4)].string), 0), (yyvsp[(3) - (4)].expr));
+	printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 46:
+
+    {
+	menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,(yyvsp[(2) - (5)].symbol), (yyvsp[(3) - (5)].symbol)), (yyvsp[(4) - (5)].expr));
+	printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 49:
+
+    {
+	const struct kconf_id *id = kconf_id_lookup((yyvsp[(2) - (3)].string), strlen((yyvsp[(2) - (3)].string)));
+	if (id && id->flags & TF_OPTION)
+		menu_add_option(id->token, (yyvsp[(3) - (3)].string));
+	else
+		zconfprint("warning: ignoring unknown option %s", (yyvsp[(2) - (3)].string));
+	free((yyvsp[(2) - (3)].string));
+;}
+    break;
+
+  case 50:
+
+    { (yyval.string) = NULL; ;}
+    break;
+
+  case 51:
+
+    { (yyval.string) = (yyvsp[(2) - (2)].string); ;}
+    break;
+
+  case 52:
+
+    {
+	struct symbol *sym = sym_lookup((yyvsp[(2) - (3)].string), SYMBOL_CHOICE);
+	sym->flags |= SYMBOL_AUTO;
+	menu_add_entry(sym);
+	menu_add_expr(P_CHOICE, NULL, NULL);
+	printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 53:
+
+    {
+	(yyval.menu) = menu_add_menu();
+;}
+    break;
+
+  case 54:
+
+    {
+	if (zconf_endtoken((yyvsp[(1) - (1)].id), T_CHOICE, T_ENDCHOICE)) {
+		menu_end_menu();
+		printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
+	}
+;}
+    break;
+
+  case 62:
+
+    {
+	menu_add_prompt(P_PROMPT, (yyvsp[(2) - (4)].string), (yyvsp[(3) - (4)].expr));
+	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 63:
+
+    {
+	if ((yyvsp[(1) - (3)].id)->stype == S_BOOLEAN || (yyvsp[(1) - (3)].id)->stype == S_TRISTATE) {
+		menu_set_type((yyvsp[(1) - (3)].id)->stype);
+		printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
+			zconf_curname(), zconf_lineno(),
+			(yyvsp[(1) - (3)].id)->stype);
+	} else
+		YYERROR;
+;}
+    break;
+
+  case 64:
+
+    {
+	current_entry->sym->flags |= SYMBOL_OPTIONAL;
+	printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 65:
+
+    {
+	menu_add_prop(P_RESET, NULL, NULL, (yyvsp[(2) - (3)].expr));
+;}
+    break;
+
+  case 66:
+
+    {
+	if ((yyvsp[(1) - (4)].id)->stype == S_UNKNOWN) {
+		menu_add_symbol(P_DEFAULT, sym_lookup((yyvsp[(2) - (4)].string), 0), (yyvsp[(3) - (4)].expr));
+		printd(DEBUG_PARSE, "%s:%d:default\n",
+			zconf_curname(), zconf_lineno());
+	} else
+		YYERROR;
+;}
+    break;
+
+  case 69:
+
+    {
+	printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
+	menu_add_entry(NULL);
+	menu_add_dep((yyvsp[(2) - (3)].expr));
+	(yyval.menu) = menu_add_menu();
+;}
+    break;
+
+  case 70:
+
+    {
+	if (zconf_endtoken((yyvsp[(1) - (1)].id), T_IF, T_ENDIF)) {
+		menu_end_menu();
+		printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
+	}
+;}
+    break;
+
+  case 76:
+
+    {
+	menu_add_prompt(P_MENU, (yyvsp[(2) - (3)].string), NULL);
+;}
+    break;
+
+  case 77:
+
+    {
+	menu_add_entry(NULL);
+	menu_add_prompt(P_MENU, (yyvsp[(2) - (3)].string), NULL);
+	printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 78:
+
+    {
+	(yyval.menu) = menu_add_menu();
+;}
+    break;
+
+  case 79:
+
+    {
+	if (zconf_endtoken((yyvsp[(1) - (1)].id), T_MENU, T_ENDMENU)) {
+		menu_end_menu();
+		printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
+	}
+;}
+    break;
+
+  case 85:
+
+    {
+	printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), (yyvsp[(2) - (3)].string));
+	zconf_nextfile((yyvsp[(2) - (3)].string));
+;}
+    break;
+
+  case 86:
+
+    {
+	menu_add_entry(NULL);
+	menu_add_prompt(P_COMMENT, (yyvsp[(2) - (3)].string), NULL);
+	printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 87:
+
+    {
+	menu_end_entry();
+;}
+    break;
+
+  case 88:
+
+    {
+	printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
+	zconf_starthelp();
+;}
+    break;
+
+  case 89:
+
+    {
+	current_entry->help = (yyvsp[(2) - (2)].string);
+;}
+    break;
+
+  case 94:
+
+    {
+	menu_add_dep((yyvsp[(3) - (4)].expr));
+	printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
+;}
+    break;
+
+  case 95:
+
+    {
+	menu_add_dep((yyvsp[(2) - (3)].expr));
+	zconfprint("warning: deprecated 'depends' syntax, use 'depends on' instead.");
+;}
+    break;
+
+  case 99:
+
+    {
+	menu_add_visibility((yyvsp[(2) - (2)].expr));
+;}
+    break;
+
+  case 101:
+
+    {
+	menu_add_prompt(P_PROMPT, (yyvsp[(1) - (2)].string), (yyvsp[(2) - (2)].expr));
+;}
+    break;
+
+  case 104:
+
+    { (yyval.id) = (yyvsp[(1) - (2)].id); ;}
+    break;
+
+  case 105:
+
+    { (yyval.id) = (yyvsp[(1) - (2)].id); ;}
+    break;
+
+  case 106:
+
+    { (yyval.id) = (yyvsp[(1) - (2)].id); ;}
+    break;
+
+  case 109:
+
+    { (yyval.expr) = NULL; ;}
+    break;
+
+  case 110:
+
+    { (yyval.expr) = (yyvsp[(2) - (2)].expr); ;}
+    break;
+
+  case 111:
+
+    { (yyval.expr) = expr_alloc_symbol((yyvsp[(1) - (1)].symbol)); ;}
+    break;
+
+  case 112:
+
+    { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); ;}
+    break;
+
+  case 113:
+
+    { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); ;}
+    break;
+
+  case 114:
+
+    { (yyval.expr) = (yyvsp[(2) - (3)].expr); ;}
+    break;
+
+  case 115:
+
+    { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[(2) - (2)].expr)); ;}
+    break;
+
+  case 116:
+
+    { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); ;}
+    break;
+
+  case 117:
+
+    { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); ;}
+    break;
+
+  case 118:
+
+    { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), 0); free((yyvsp[(1) - (1)].string)); ;}
+    break;
+
+  case 119:
+
+    { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), SYMBOL_CONST); free((yyvsp[(1) - (1)].string)); ;}
+    break;
+
+  case 120:
+
+    { (yyval.string) = NULL; ;}
+    break;
+
+
+/* Line 1267 of yacc.c.  */
+
+      default: break;
+    }
+  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+
+  *++yyvsp = yyval;
+
+
+  /* Now `shift' the result of the reduction.  Determine what state
+     that goes to, based on the state we popped back to and the rule
+     number reduced by.  */
+
+  yyn = yyr1[yyn];
+
+  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+    yystate = yytable[yystate];
+  else
+    yystate = yydefgoto[yyn - YYNTOKENS];
+
+  goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+  /* If not already recovering from an error, report this error.  */
+  if (!yyerrstatus)
+    {
+      ++yynerrs;
+#if ! YYERROR_VERBOSE
+      yyerror (YY_("syntax error"));
+#else
+      {
+	YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+	if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+	  {
+	    YYSIZE_T yyalloc = 2 * yysize;
+	    if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+	      yyalloc = YYSTACK_ALLOC_MAXIMUM;
+	    if (yymsg != yymsgbuf)
+	      YYSTACK_FREE (yymsg);
+	    yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+	    if (yymsg)
+	      yymsg_alloc = yyalloc;
+	    else
+	      {
+		yymsg = yymsgbuf;
+		yymsg_alloc = sizeof yymsgbuf;
+	      }
+	  }
+
+	if (0 < yysize && yysize <= yymsg_alloc)
+	  {
+	    (void) yysyntax_error (yymsg, yystate, yychar);
+	    yyerror (yymsg);
+	  }
+	else
+	  {
+	    yyerror (YY_("syntax error"));
+	    if (yysize != 0)
+	      goto yyexhaustedlab;
+	  }
+      }
+#endif
+    }
+
+
+
+  if (yyerrstatus == 3)
+    {
+      /* If just tried and failed to reuse look-ahead token after an
+	 error, discard it.  */
+
+      if (yychar <= YYEOF)
+	{
+	  /* Return failure if at end of input.  */
+	  if (yychar == YYEOF)
+	    YYABORT;
+	}
+      else
+	{
+	  yydestruct ("Error: discarding",
+		      yytoken, &yylval);
+	  yychar = YYEMPTY;
+	}
+    }
+
+  /* Else will try to reuse look-ahead token after shifting the error
+     token.  */
+  goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR.  |
+`---------------------------------------------------*/
+yyerrorlab:
+
+  /* Pacify compilers like GCC when the user code never invokes
+     YYERROR and the label yyerrorlab therefore never appears in user
+     code.  */
+  if (/*CONSTCOND*/ 0)
+     goto yyerrorlab;
+
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYERROR.  */
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+  yystate = *yyssp;
+  goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR.  |
+`-------------------------------------------------------------*/
+yyerrlab1:
+  yyerrstatus = 3;	/* Each real token shifted decrements this.  */
+
+  for (;;)
+    {
+      yyn = yypact[yystate];
+      if (yyn != YYPACT_NINF)
+	{
+	  yyn += YYTERROR;
+	  if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+	    {
+	      yyn = yytable[yyn];
+	      if (0 < yyn)
+		break;
+	    }
+	}
+
+      /* Pop the current state because it cannot handle the error token.  */
+      if (yyssp == yyss)
+	YYABORT;
+
+
+      yydestruct ("Error: popping",
+		  yystos[yystate], yyvsp);
+      YYPOPSTACK (1);
+      yystate = *yyssp;
+      YY_STACK_PRINT (yyss, yyssp);
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  *++yyvsp = yylval;
+
+
+  /* Shift the error token.  */
+  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here.  |
+`-------------------------------------*/
+yyacceptlab:
+  yyresult = 0;
+  goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here.  |
+`-----------------------------------*/
+yyabortlab:
+  yyresult = 1;
+  goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here.  |
+`-------------------------------------------------*/
+yyexhaustedlab:
+  yyerror (YY_("memory exhausted"));
+  yyresult = 2;
+  /* Fall through.  */
+#endif
+
+yyreturn:
+  if (yychar != YYEOF && yychar != YYEMPTY)
+     yydestruct ("Cleanup: discarding lookahead",
+		 yytoken, &yylval);
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYABORT or YYACCEPT.  */
+  YYPOPSTACK (yylen);
+  YY_STACK_PRINT (yyss, yyssp);
+  while (yyssp != yyss)
+    {
+      yydestruct ("Cleanup: popping",
+		  yystos[*yyssp], yyvsp);
+      YYPOPSTACK (1);
+    }
+#ifndef yyoverflow
+  if (yyss != yyssa)
+    YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+  if (yymsg != yymsgbuf)
+    YYSTACK_FREE (yymsg);
+#endif
+  /* Make sure YYID is used.  */
+  return YYID (yyresult);
+}
+
+
+
+
+
+void conf_parse(const char *name)
+{
+	struct symbol *sym;
+	int i;
+
+	zconf_initscan(name);
+
+	sym_init();
+	_menu_init();
+	rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
+
+#if YYDEBUG
+	if (getenv("ZCONF_DEBUG"))
+		zconfdebug = 1;
+#endif
+	zconfparse();
+	if (zconfnerrs)
+		exit(1);
+	if (!modules_sym)
+		modules_sym = sym_find( "n" );
+
+	rootmenu.prompt->text = _(rootmenu.prompt->text);
+	rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
+
+	menu_finalize(&rootmenu);
+	for_all_symbols(i, sym) {
+		if (sym_check_deps(sym))
+			zconfnerrs++;
+	}
+	if (zconfnerrs)
+		exit(1);
+	sym_set_change_count(1);
+}
+
+static const char *zconf_tokenname(int token)
+{
+	switch (token) {
+	case T_MENU:		return "menu";
+	case T_ENDMENU:		return "endmenu";
+	case T_CHOICE:		return "choice";
+	case T_ENDCHOICE:	return "endchoice";
+	case T_IF:		return "if";
+	case T_ENDIF:		return "endif";
+	case T_DEPENDS:		return "depends";
+	case T_VISIBLE:		return "visible";
+	}
+	return "<token>";
+}
+
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
+{
+	if (id->token != endtoken) {
+		zconf_error("unexpected '%s' within %s block",
+			kconf_id_strings + id->name, zconf_tokenname(starttoken));
+		zconfnerrs++;
+		return false;
+	}
+	if (current_menu->file != current_file) {
+		zconf_error("'%s' in different file than '%s'",
+			kconf_id_strings + id->name, zconf_tokenname(starttoken));
+		fprintf(stderr, "%s:%d: location of the '%s'\n",
+			current_menu->file->name, current_menu->lineno,
+			zconf_tokenname(starttoken));
+		zconfnerrs++;
+		return false;
+	}
+	return true;
+}
+
+static void zconfprint(const char *err, ...)
+{
+	va_list ap;
+
+	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
+	va_start(ap, err);
+	vfprintf(stderr, err, ap);
+	va_end(ap);
+	fprintf(stderr, "\n");
+}
+
+static void zconf_error(const char *err, ...)
+{
+	va_list ap;
+
+	zconfnerrs++;
+	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
+	va_start(ap, err);
+	vfprintf(stderr, err, ap);
+	va_end(ap);
+	fprintf(stderr, "\n");
+}
+
+static void zconferror(const char *err)
+{
+	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
+}
+
+static void print_quoted_string(FILE *out, const char *str)
+{
+	const char *p;
+	int len;
+
+	putc('"', out);
+	while ((p = strchr(str, '"'))) {
+		len = p - str;
+		if (len)
+			fprintf(out, "%.*s", len, str);
+		fputs("\\\"", out);
+		str = p + 1;
+	}
+	fputs(str, out);
+	putc('"', out);
+}
+
+static void print_symbol(FILE *out, struct menu *menu)
+{
+	struct symbol *sym = menu->sym;
+	struct property *prop;
+
+	if (sym_is_choice(sym))
+		fprintf(out, "\nchoice\n");
+	else
+		fprintf(out, "\nconfig %s\n", sym->name);
+	switch (sym->type) {
+	case S_BOOLEAN:
+		fputs("  boolean\n", out);
+		break;
+	case S_TRISTATE:
+		fputs("  tristate\n", out);
+		break;
+	case S_STRING:
+		fputs("  string\n", out);
+		break;
+	case S_INT:
+		fputs("  integer\n", out);
+		break;
+	case S_HEX:
+		fputs("  hex\n", out);
+		break;
+	default:
+		fputs("  ???\n", out);
+		break;
+	}
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->menu != menu)
+			continue;
+		switch (prop->type) {
+		case P_PROMPT:
+			fputs("  prompt ", out);
+			print_quoted_string(out, prop->text);
+			if (!expr_is_yes(prop->visible.expr)) {
+				fputs(" if ", out);
+				expr_fprint(prop->visible.expr, out);
+			}
+			fputc('\n', out);
+			break;
+		case P_DEFAULT:
+			fputs( "  default ", out);
+			expr_fprint(prop->expr, out);
+			if (!expr_is_yes(prop->visible.expr)) {
+				fputs(" if ", out);
+				expr_fprint(prop->visible.expr, out);
+			}
+			fputc('\n', out);
+			break;
+		case P_CHOICE:
+			fputs("  #choice value\n", out);
+			break;
+		case P_SELECT:
+			fputs( "  select ", out);
+			expr_fprint(prop->expr, out);
+			fputc('\n', out);
+			break;
+		case P_RANGE:
+			fputs( "  range ", out);
+			expr_fprint(prop->expr, out);
+			fputc('\n', out);
+			break;
+		case P_MENU:
+			fputs( "  menu ", out);
+			print_quoted_string(out, prop->text);
+			fputc('\n', out);
+			break;
+		default:
+			fprintf(out, "  unknown prop %d!\n", prop->type);
+			break;
+		}
+	}
+	if (menu->help) {
+		int len = strlen(menu->help);
+		while (menu->help[--len] == '\n')
+			menu->help[len] = 0;
+		fprintf(out, "  help\n%s\n", menu->help);
+	}
+}
+
+void zconfdump(FILE *out)
+{
+	struct property *prop;
+	struct symbol *sym;
+	struct menu *menu;
+
+	menu = rootmenu.list;
+	while (menu) {
+		if ((sym = menu->sym))
+			print_symbol(out, menu);
+		else if ((prop = menu->prompt)) {
+			switch (prop->type) {
+			case P_COMMENT:
+				fputs("\ncomment ", out);
+				print_quoted_string(out, prop->text);
+				fputs("\n", out);
+				break;
+			case P_MENU:
+				fputs("\nmenu ", out);
+				print_quoted_string(out, prop->text);
+				fputs("\n", out);
+				break;
+			default:
+				;
+			}
+			if (!expr_is_yes(prop->visible.expr)) {
+				fputs("  depends ", out);
+				expr_fprint(prop->visible.expr, out);
+				fputc('\n', out);
+			}
+		}
+
+		if (menu->list)
+			menu = menu->list;
+		else if (menu->next)
+			menu = menu->next;
+		else while ((menu = menu->parent)) {
+			if (menu->prompt && menu->prompt->type == P_MENU)
+				fputs("\nendmenu\n", out);
+			if (menu->next) {
+				menu = menu->next;
+				break;
+			}
+		}
+	}
+}
+
+#include "zconf.lex.c"
+#include "util.c"
+#include "confdata.c"
+#include "expr.c"
+#include "symbol.c"
+#include "menu.c"
+
diff --git a/scripts/config/zconf.y b/scripts/config/zconf.y
new file mode 100644
index 0000000..903803d
--- /dev/null
+++ b/scripts/config/zconf.y
@@ -0,0 +1,745 @@
+%{
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "lkc.h"
+
+#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
+
+#define PRINTD		0x0001
+#define DEBUG_PARSE	0x0002
+
+int cdebug = PRINTD;
+
+extern int zconflex(void);
+static void zconfprint(const char *err, ...);
+static void zconf_error(const char *err, ...);
+static void zconferror(const char *err);
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
+
+struct symbol *symbol_hash[SYMBOL_HASHSIZE];
+
+static struct menu *current_menu, *current_entry;
+
+%}
+%expect 30
+
+%union
+{
+	char *string;
+	struct file *file;
+	struct symbol *symbol;
+	struct expr *expr;
+	struct menu *menu;
+	const struct kconf_id *id;
+}
+
+%token <id>T_MAINMENU
+%token <id>T_MENU
+%token <id>T_ENDMENU
+%token <id>T_SOURCE
+%token <id>T_CHOICE
+%token <id>T_ENDCHOICE
+%token <id>T_COMMENT
+%token <id>T_CONFIG
+%token <id>T_MENUCONFIG
+%token <id>T_HELP
+%token <string> T_HELPTEXT
+%token <id>T_IF
+%token <id>T_ENDIF
+%token <id>T_DEPENDS
+%token <id>T_OPTIONAL
+%token <id>T_PROMPT
+%token <id>T_TYPE
+%token <id>T_DEFAULT
+%token <id>T_SELECT
+%token <id>T_RANGE
+%token <id>T_VISIBLE
+%token <id>T_OPTION
+%token <id>T_ON
+%token <id>T_RESET
+%token <string> T_WORD
+%token <string> T_WORD_QUOTE
+%token T_UNEQUAL
+%token T_CLOSE_PAREN
+%token T_OPEN_PAREN
+%token T_EOL
+
+%left T_OR
+%left T_AND
+%left T_EQUAL T_UNEQUAL
+%nonassoc T_NOT
+
+%type <string> prompt
+%type <symbol> symbol
+%type <expr> expr
+%type <expr> if_expr
+%type <id> end
+%type <id> option_name
+%type <menu> if_entry menu_entry choice_entry
+%type <string> symbol_option_arg word_opt
+
+%destructor {
+	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
+		$$->file->name, $$->lineno);
+	if (current_menu == $$)
+		menu_end_menu();
+} if_entry menu_entry choice_entry
+
+%{
+/* Include zconf.hash.c here so it can see the token constants. */
+#include "zconf.hash.c"
+%}
+
+%%
+input: nl start | start;
+
+start: mainmenu_stmt stmt_list | stmt_list;
+
+stmt_list:
+	  /* empty */
+	| stmt_list common_stmt
+	| stmt_list choice_stmt
+	| stmt_list menu_stmt
+	| stmt_list end			{ zconf_error("unexpected end statement"); }
+	| stmt_list T_WORD error T_EOL	{ zconf_error("unknown statement \"%s\"", $2); }
+	| stmt_list option_name error T_EOL
+{
+	zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
+}
+	| stmt_list error T_EOL		{ zconf_error("invalid statement"); }
+;
+
+option_name:
+	T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE | T_RESET
+;
+
+common_stmt:
+	  T_EOL
+	| if_stmt
+	| comment_stmt
+	| config_stmt
+	| menuconfig_stmt
+	| source_stmt
+;
+
+option_error:
+	  T_WORD error T_EOL		{ zconf_error("unknown option \"%s\"", $1); }
+	| error T_EOL			{ zconf_error("invalid option"); }
+;
+
+
+/* config/menuconfig entry */
+
+config_entry_start: T_CONFIG T_WORD T_EOL
+{
+	struct symbol *sym = sym_lookup($2, 0);
+	sym->flags |= SYMBOL_OPTIONAL;
+	menu_add_entry(sym);
+	printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
+};
+
+config_stmt: config_entry_start config_option_list
+{
+	menu_end_entry();
+	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
+};
+
+menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
+{
+	struct symbol *sym = sym_lookup($2, 0);
+	sym->flags |= SYMBOL_OPTIONAL;
+	menu_add_entry(sym);
+	printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
+};
+
+menuconfig_stmt: menuconfig_entry_start config_option_list
+{
+	if (current_entry->prompt)
+		current_entry->prompt->type = P_MENU;
+	else
+		zconfprint("warning: menuconfig statement without prompt");
+	menu_end_entry();
+	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
+};
+
+config_option_list:
+	  /* empty */
+	| config_option_list config_option
+	| config_option_list symbol_option
+	| config_option_list depends
+	| config_option_list help
+	| config_option_list option_error
+	| config_option_list T_EOL
+;
+
+config_option: T_TYPE prompt_stmt_opt T_EOL
+{
+	menu_set_type($1->stype);
+	printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
+		zconf_curname(), zconf_lineno(),
+		$1->stype);
+};
+
+config_option: T_PROMPT prompt if_expr T_EOL
+{
+	menu_add_prompt(P_PROMPT, $2, $3);
+	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
+};
+
+config_option: T_DEFAULT expr if_expr T_EOL
+{
+	menu_add_expr(P_DEFAULT, $2, $3);
+	if ($1->stype != S_UNKNOWN)
+		menu_set_type($1->stype);
+	printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
+		zconf_curname(), zconf_lineno(),
+		$1->stype);
+};
+
+config_option: T_SELECT T_WORD if_expr T_EOL
+{
+	menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
+	printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
+};
+
+config_option: T_RANGE symbol symbol if_expr T_EOL
+{
+	menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
+	printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
+};
+
+symbol_option: T_OPTION symbol_option_list T_EOL
+;
+
+symbol_option_list:
+	  /* empty */
+	| symbol_option_list T_WORD symbol_option_arg
+{
+	const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
+	if (id && id->flags & TF_OPTION)
+		menu_add_option(id->token, $3);
+	else
+		zconfprint("warning: ignoring unknown option %s", $2);
+	free($2);
+};
+
+symbol_option_arg:
+	  /* empty */		{ $$ = NULL; }
+	| T_EQUAL prompt	{ $$ = $2; }
+;
+
+/* choice entry */
+
+choice: T_CHOICE word_opt T_EOL
+{
+	struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
+	sym->flags |= SYMBOL_AUTO;
+	menu_add_entry(sym);
+	menu_add_expr(P_CHOICE, NULL, NULL);
+	printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
+};
+
+choice_entry: choice choice_option_list
+{
+	$$ = menu_add_menu();
+};
+
+choice_end: end
+{
+	if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
+		menu_end_menu();
+		printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
+	}
+};
+
+choice_stmt: choice_entry choice_block choice_end
+;
+
+choice_option_list:
+	  /* empty */
+	| choice_option_list choice_option
+	| choice_option_list depends
+	| choice_option_list help
+	| choice_option_list T_EOL
+	| choice_option_list option_error
+;
+
+choice_option: T_PROMPT prompt if_expr T_EOL
+{
+	menu_add_prompt(P_PROMPT, $2, $3);
+	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
+};
+
+choice_option: T_TYPE prompt_stmt_opt T_EOL
+{
+	if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
+		menu_set_type($1->stype);
+		printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
+			zconf_curname(), zconf_lineno(),
+			$1->stype);
+	} else
+		YYERROR;
+};
+
+choice_option: T_OPTIONAL T_EOL
+{
+	current_entry->sym->flags |= SYMBOL_OPTIONAL;
+	printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
+};
+
+choice_option: T_RESET if_expr T_EOL
+{
+	menu_add_prop(P_RESET, NULL, NULL, $2);
+};
+
+choice_option: T_DEFAULT T_WORD if_expr T_EOL
+{
+	if ($1->stype == S_UNKNOWN) {
+		menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
+		printd(DEBUG_PARSE, "%s:%d:default\n",
+			zconf_curname(), zconf_lineno());
+	} else
+		YYERROR;
+};
+
+choice_block:
+	  /* empty */
+	| choice_block common_stmt
+;
+
+/* if entry */
+
+if_entry: T_IF expr nl
+{
+	printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
+	menu_add_entry(NULL);
+	menu_add_dep($2);
+	$$ = menu_add_menu();
+};
+
+if_end: end
+{
+	if (zconf_endtoken($1, T_IF, T_ENDIF)) {
+		menu_end_menu();
+		printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
+	}
+};
+
+if_stmt: if_entry if_block if_end
+;
+
+if_block:
+	  /* empty */
+	| if_block common_stmt
+	| if_block menu_stmt
+	| if_block choice_stmt
+;
+
+/* mainmenu entry */
+
+mainmenu_stmt: T_MAINMENU prompt nl
+{
+	menu_add_prompt(P_MENU, $2, NULL);
+};
+
+/* menu entry */
+
+menu: T_MENU prompt T_EOL
+{
+	menu_add_entry(NULL);
+	menu_add_prompt(P_MENU, $2, NULL);
+	printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
+};
+
+menu_entry: menu visibility_list depends_list
+{
+	$$ = menu_add_menu();
+};
+
+menu_end: end
+{
+	if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
+		menu_end_menu();
+		printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
+	}
+};
+
+menu_stmt: menu_entry menu_block menu_end
+;
+
+menu_block:
+	  /* empty */
+	| menu_block common_stmt
+	| menu_block menu_stmt
+	| menu_block choice_stmt
+;
+
+source_stmt: T_SOURCE prompt T_EOL
+{
+	printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
+	zconf_nextfile($2);
+};
+
+/* comment entry */
+
+comment: T_COMMENT prompt T_EOL
+{
+	menu_add_entry(NULL);
+	menu_add_prompt(P_COMMENT, $2, NULL);
+	printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
+};
+
+comment_stmt: comment depends_list
+{
+	menu_end_entry();
+};
+
+/* help option */
+
+help_start: T_HELP T_EOL
+{
+	printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
+	zconf_starthelp();
+};
+
+help: help_start T_HELPTEXT
+{
+	current_entry->help = $2;
+};
+
+/* depends option */
+
+depends_list:
+	  /* empty */
+	| depends_list depends
+	| depends_list T_EOL
+	| depends_list option_error
+;
+
+depends: T_DEPENDS T_ON expr T_EOL
+{
+	menu_add_dep($3);
+	printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
+} | T_DEPENDS expr T_EOL
+{
+	menu_add_dep($2);
+	zconfprint("warning: deprecated 'depends' syntax, use 'depends on' instead.");
+};
+
+/* visibility option */
+
+visibility_list:
+	  /* empty */
+	| visibility_list visible
+	| visibility_list T_EOL
+;
+
+visible: T_VISIBLE if_expr
+{
+	menu_add_visibility($2);
+};
+
+/* prompt statement */
+
+prompt_stmt_opt:
+	  /* empty */
+	| prompt if_expr
+{
+	menu_add_prompt(P_PROMPT, $1, $2);
+};
+
+prompt:	  T_WORD
+	| T_WORD_QUOTE
+;
+
+end:	  T_ENDMENU T_EOL	{ $$ = $1; }
+	| T_ENDCHOICE T_EOL	{ $$ = $1; }
+	| T_ENDIF T_EOL		{ $$ = $1; }
+;
+
+nl:
+	  T_EOL
+	| nl T_EOL
+;
+
+if_expr:  /* empty */			{ $$ = NULL; }
+	| T_IF expr			{ $$ = $2; }
+;
+
+expr:	  symbol				{ $$ = expr_alloc_symbol($1); }
+	| symbol T_EQUAL symbol			{ $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
+	| symbol T_UNEQUAL symbol		{ $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
+	| T_OPEN_PAREN expr T_CLOSE_PAREN	{ $$ = $2; }
+	| T_NOT expr				{ $$ = expr_alloc_one(E_NOT, $2); }
+	| expr T_OR expr			{ $$ = expr_alloc_two(E_OR, $1, $3); }
+	| expr T_AND expr			{ $$ = expr_alloc_two(E_AND, $1, $3); }
+;
+
+symbol:	  T_WORD	{ $$ = sym_lookup($1, 0); free($1); }
+	| T_WORD_QUOTE	{ $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
+;
+
+word_opt: /* empty */			{ $$ = NULL; }
+	| T_WORD
+
+%%
+
+void conf_parse(const char *name)
+{
+	struct symbol *sym;
+	int i;
+
+	zconf_initscan(name);
+
+	sym_init();
+	_menu_init();
+	rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
+
+#if YYDEBUG
+	if (getenv("ZCONF_DEBUG"))
+		zconfdebug = 1;
+#endif
+	zconfparse();
+	if (zconfnerrs)
+		exit(1);
+	if (!modules_sym)
+		modules_sym = sym_find( "n" );
+
+	rootmenu.prompt->text = _(rootmenu.prompt->text);
+	rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
+
+	menu_finalize(&rootmenu);
+	for_all_symbols(i, sym) {
+		if (sym_check_deps(sym))
+			zconfnerrs++;
+	}
+	if (zconfnerrs)
+		exit(1);
+	sym_set_change_count(1);
+}
+
+static const char *zconf_tokenname(int token)
+{
+	switch (token) {
+	case T_MENU:		return "menu";
+	case T_ENDMENU:		return "endmenu";
+	case T_CHOICE:		return "choice";
+	case T_ENDCHOICE:	return "endchoice";
+	case T_IF:		return "if";
+	case T_ENDIF:		return "endif";
+	case T_DEPENDS:		return "depends";
+	case T_VISIBLE:		return "visible";
+	}
+	return "<token>";
+}
+
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
+{
+	if (id->token != endtoken) {
+		zconf_error("unexpected '%s' within %s block",
+			kconf_id_strings + id->name, zconf_tokenname(starttoken));
+		zconfnerrs++;
+		return false;
+	}
+	if (current_menu->file != current_file) {
+		zconf_error("'%s' in different file than '%s'",
+			kconf_id_strings + id->name, zconf_tokenname(starttoken));
+		fprintf(stderr, "%s:%d: location of the '%s'\n",
+			current_menu->file->name, current_menu->lineno,
+			zconf_tokenname(starttoken));
+		zconfnerrs++;
+		return false;
+	}
+	return true;
+}
+
+static void zconfprint(const char *err, ...)
+{
+	va_list ap;
+
+	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
+	va_start(ap, err);
+	vfprintf(stderr, err, ap);
+	va_end(ap);
+	fprintf(stderr, "\n");
+}
+
+static void zconf_error(const char *err, ...)
+{
+	va_list ap;
+
+	zconfnerrs++;
+	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
+	va_start(ap, err);
+	vfprintf(stderr, err, ap);
+	va_end(ap);
+	fprintf(stderr, "\n");
+}
+
+static void zconferror(const char *err)
+{
+	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
+}
+
+static void print_quoted_string(FILE *out, const char *str)
+{
+	const char *p;
+	int len;
+
+	putc('"', out);
+	while ((p = strchr(str, '"'))) {
+		len = p - str;
+		if (len)
+			fprintf(out, "%.*s", len, str);
+		fputs("\\\"", out);
+		str = p + 1;
+	}
+	fputs(str, out);
+	putc('"', out);
+}
+
+static void print_symbol(FILE *out, struct menu *menu)
+{
+	struct symbol *sym = menu->sym;
+	struct property *prop;
+
+	if (sym_is_choice(sym))
+		fprintf(out, "\nchoice\n");
+	else
+		fprintf(out, "\nconfig %s\n", sym->name);
+	switch (sym->type) {
+	case S_BOOLEAN:
+		fputs("  boolean\n", out);
+		break;
+	case S_TRISTATE:
+		fputs("  tristate\n", out);
+		break;
+	case S_STRING:
+		fputs("  string\n", out);
+		break;
+	case S_INT:
+		fputs("  integer\n", out);
+		break;
+	case S_HEX:
+		fputs("  hex\n", out);
+		break;
+	default:
+		fputs("  ???\n", out);
+		break;
+	}
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->menu != menu)
+			continue;
+		switch (prop->type) {
+		case P_PROMPT:
+			fputs("  prompt ", out);
+			print_quoted_string(out, prop->text);
+			if (!expr_is_yes(prop->visible.expr)) {
+				fputs(" if ", out);
+				expr_fprint(prop->visible.expr, out);
+			}
+			fputc('\n', out);
+			break;
+		case P_DEFAULT:
+			fputs( "  default ", out);
+			expr_fprint(prop->expr, out);
+			if (!expr_is_yes(prop->visible.expr)) {
+				fputs(" if ", out);
+				expr_fprint(prop->visible.expr, out);
+			}
+			fputc('\n', out);
+			break;
+		case P_CHOICE:
+			fputs("  #choice value\n", out);
+			break;
+		case P_SELECT:
+			fputs( "  select ", out);
+			expr_fprint(prop->expr, out);
+			fputc('\n', out);
+			break;
+		case P_RANGE:
+			fputs( "  range ", out);
+			expr_fprint(prop->expr, out);
+			fputc('\n', out);
+			break;
+		case P_MENU:
+			fputs( "  menu ", out);
+			print_quoted_string(out, prop->text);
+			fputc('\n', out);
+			break;
+		default:
+			fprintf(out, "  unknown prop %d!\n", prop->type);
+			break;
+		}
+	}
+	if (menu->help) {
+		int len = strlen(menu->help);
+		while (menu->help[--len] == '\n')
+			menu->help[len] = 0;
+		fprintf(out, "  help\n%s\n", menu->help);
+	}
+}
+
+void zconfdump(FILE *out)
+{
+	struct property *prop;
+	struct symbol *sym;
+	struct menu *menu;
+
+	menu = rootmenu.list;
+	while (menu) {
+		if ((sym = menu->sym))
+			print_symbol(out, menu);
+		else if ((prop = menu->prompt)) {
+			switch (prop->type) {
+			case P_COMMENT:
+				fputs("\ncomment ", out);
+				print_quoted_string(out, prop->text);
+				fputs("\n", out);
+				break;
+			case P_MENU:
+				fputs("\nmenu ", out);
+				print_quoted_string(out, prop->text);
+				fputs("\n", out);
+				break;
+			default:
+				;
+			}
+			if (!expr_is_yes(prop->visible.expr)) {
+				fputs("  depends ", out);
+				expr_fprint(prop->visible.expr, out);
+				fputc('\n', out);
+			}
+		}
+
+		if (menu->list)
+			menu = menu->list;
+		else if (menu->next)
+			menu = menu->next;
+		else while ((menu = menu->parent)) {
+			if (menu->prompt && menu->prompt->type == P_MENU)
+				fputs("\nendmenu\n", out);
+			if (menu->next) {
+				menu = menu->next;
+				break;
+			}
+		}
+	}
+}
+
+#include "zconf.lex.c"
+#include "util.c"
+#include "confdata.c"
+#include "expr.c"
+#include "symbol.c"
+#include "menu.c"
diff --git a/scripts/deptest.sh b/scripts/deptest.sh
new file mode 100755
index 0000000..047a0ce
--- /dev/null
+++ b/scripts/deptest.sh
@@ -0,0 +1,211 @@
+#!/bin/bash
+#
+# Automated OpenWrt package dependency checker
+#
+# Copyright (C) 2009-2010 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+SCRIPTDIR="$(dirname "$0")"
+[ "${SCRIPTDIR:0:1}" = "/" ] || SCRIPTDIR="$PWD/$SCRIPTDIR"
+BASEDIR="$SCRIPTDIR/.."
+
+DIR="$BASEDIR/tmp/deptest"
+STAMP_DIR_SUCCESS="$DIR/stamp-success"
+STAMP_DIR_FAILED="$DIR/stamp-failed"
+STAMP_DIR_BLACKLIST="$DIR/stamp-blacklist"
+BUILD_DIR="$DIR/build_dir/target"
+BUILD_DIR_HOST="$DIR/build_dir/host"
+KERNEL_BUILD_DIR="$DIR/build_dir/linux"
+STAGING_DIR="$DIR/staging_dir/target"
+STAGING_DIR_HOST="$DIR/staging_dir/host"
+STAGING_DIR_HOST_TMPL="$DIR/staging_dir_host_tmpl"
+BIN_DIR="$DIR/staging_dir/bin_dir"
+LOG_DIR_NAME="logs"
+LOG_DIR="$DIR/$LOG_DIR_NAME"
+
+die()
+{
+	echo "$@"
+	exit 1
+}
+
+usage()
+{
+	echo "deptest.sh [OPTIONS] [PACKAGES]"
+	echo
+	echo "OPTIONS:"
+	echo "  --lean       Run a lean test. Do not clean the build directory for each"
+	echo "               package test."
+	echo "  --force      Force a test, even if a success/blacklist stamp is available"
+	echo "  -j X         Number of make jobs"
+	echo
+	echo "PACKAGES are packages to test. If not specified, all installed packages"
+	echo "will be tested."
+}
+
+deptest_make()
+{
+	local target="$1"
+	shift
+	local logfile="$1"
+	shift
+	make -j$nrjobs "$target" \
+		BUILD_DIR="$BUILD_DIR" \
+		BUILD_DIR_HOST="$BUILD_DIR_HOST" \
+		KERNEL_BUILD_DIR="$KERNEL_BUILD_DIR" \
+		BIN_DIR="$BIN_DIR" \
+		STAGING_DIR="$STAGING_DIR" \
+		STAGING_DIR_HOST="$STAGING_DIR_HOST" \
+		FORCE_HOST_INSTALL=1 \
+		V=99 "$@" >"$LOG_DIR/$logfile" 2>&1
+}
+
+clean_kernel_build_dir()
+{
+	# delete everything, except the kernel build dir "linux-X.X.X"
+	(
+		cd "$KERNEL_BUILD_DIR" || die "Failed to enter kernel build dir"
+		for entry in *; do
+			[ -z "$(echo "$entry" | egrep -e '^linux-*.*.*$')" ] || continue
+			rm -rf "$entry" || die "Failed to clean kernel build dir"
+		done
+	)
+}
+
+stamp_exists() # $1=stamp
+{
+	[ -e "$1" -o -L "$1" ]
+}
+
+test_package() # $1=pkgname
+{
+	local pkg="$1"
+	[ -n "$pkg" -a -z "$(echo "$pkg" | grep -e '/')" -a "$pkg" != "." -a "$pkg" != ".." ] || \
+		die "Package name \"$pkg\" contains illegal characters"
+	local SELECTED=
+	for conf in `grep CONFIG_PACKAGE tmp/.packagedeps | grep -E "[ /]$pkg\$" | sed -e 's,package-$(\(CONFIG_PACKAGE_.*\)).*,\1,'`; do
+		grep "$conf=" .config > /dev/null && SELECTED=1 && break
+	done
+	local STAMP_SUCCESS="$STAMP_DIR_SUCCESS/$pkg"
+	local STAMP_FAILED="$STAMP_DIR_FAILED/$pkg"
+	local STAMP_BLACKLIST="$STAMP_DIR_BLACKLIST/$pkg"
+	rm -f "$STAMP_FAILED"
+	stamp_exists "$STAMP_SUCCESS" && [ $force -eq 0 ] && return
+	rm -f "$STAMP_SUCCESS"
+	[ -n "$SELECTED" ] || {
+		echo "Package $pkg is not selected"
+		return
+	}
+	stamp_exists "$STAMP_BLACKLIST" && [ $force -eq 0 ] && {
+		echo "Package $pkg is blacklisted"
+		return
+	}
+	echo "Testing package $pkg..."
+	rm -rf "$STAGING_DIR" "$STAGING_DIR_HOST"
+	mkdir -p "$STAGING_DIR"
+	cp -al "$STAGING_DIR_HOST_TMPL" "$STAGING_DIR_HOST"
+	[ $lean_test -eq 0 ] && {
+		rm -rf "$BUILD_DIR" "$BUILD_DIR_HOST"
+		clean_kernel_build_dir
+	}
+	mkdir -p "$BUILD_DIR" "$BUILD_DIR_HOST"
+	local logfile="$(basename $pkg).log"
+	deptest_make "package/$pkg/compile" "$logfile"
+	if [ $? -eq 0 ]; then
+		( cd "$STAMP_DIR_SUCCESS"; ln -s "../$LOG_DIR_NAME/$logfile" "./$pkg" )
+	else
+		( cd "$STAMP_DIR_FAILED"; ln -s "../$LOG_DIR_NAME/$logfile" "./$pkg" )
+		echo "Building package $pkg FAILED"
+	fi
+}
+
+# parse commandline options
+packages=
+lean_test=0
+force=0
+nrjobs=1
+while [ $# -ne 0 ]; do
+	case "$1" in
+	--help|-h)
+		usage
+		exit 0
+		;;
+	--lean)
+		lean_test=1
+		;;
+	--force)
+		force=1
+		;;
+	-j*)
+		if [ -n "${1:2}" ]; then
+			nrjobs="${1:2}"
+		else
+			shift
+			nrjobs="$1"
+		fi
+		;;
+	*)
+		packages="$packages $1"
+		;;
+	esac
+	shift
+done
+
+[ -f "$BASEDIR/include/toplevel.mk" ] || \
+	die "Error: Could not find buildsystem base directory"
+[ -f "$BASEDIR/.config" ] || \
+	die "The buildsystem is not configured. Please run make menuconfig."
+cd "$BASEDIR" || die "Failed to enter base directory"
+
+mkdir -p "$STAMP_DIR_SUCCESS" "$STAMP_DIR_FAILED" "$STAMP_DIR_BLACKLIST" \
+	"$BIN_DIR" "$LOG_DIR"
+
+bootstrap_deptest_make()
+{
+	local target="$1"
+	shift
+	local logfile="bootstrap-deptest-$(echo "$target" | tr / -).log"
+	echo "deptest-make $target"
+	deptest_make "$target" "$logfile" "$@" || \
+		die "make $target failed, please check $logfile"
+}
+
+bootstrap_native_make()
+{
+	local target="$1"
+	shift
+	local logfile="bootstrap-native-$(echo "$target" | tr / -).log"
+	echo "make $target"
+	make -j$nrjobs "$target" \
+		V=99 "$@" >"$LOG_DIR/$logfile" 2>&1 || \
+		die "make $target failed, please check $logfile"
+}
+
+[ -d "$STAGING_DIR_HOST_TMPL" ] || {
+	echo "Bootstrapping build environment..."
+	rm -rf "$STAGING_DIR" "$STAGING_DIR_HOST" "$BUILD_DIR" "$BUILD_DIR_HOST" "$KERNEL_BUILD_DIR"
+	mkdir -p "$STAGING_DIR" "$STAGING_DIR_HOST" \
+		"$BUILD_DIR" "$BUILD_DIR_HOST" "$KERNEL_BUILD_DIR"
+	bootstrap_native_make tools/install
+	bootstrap_native_make toolchain/install
+	bootstrap_deptest_make tools/install
+	bootstrap_deptest_make target/linux/install
+	cp -al "$STAGING_DIR_HOST" "$STAGING_DIR_HOST_TMPL"
+	rm -rf "$STAGING_DIR" "$STAGING_DIR_HOST" "$BUILD_DIR" "$BUILD_DIR_HOST"
+	echo "Build environment OK."
+}
+
+if [ -z "$packages" ]; then
+	# iterate over all packages
+	for pkg in `cat tmp/.packagedeps  | grep CONFIG_PACKAGE | grep -v curdir | sed -e 's,.*[/=]\s*,,' | sort -u`; do
+		test_package "$pkg"
+	done
+else
+	# only check the specified packages
+	for pkg in $packages; do
+		test_package "$pkg"
+	done
+fi
diff --git a/scripts/diffconfig.sh b/scripts/diffconfig.sh
new file mode 100755
index 0000000..350886b
--- /dev/null
+++ b/scripts/diffconfig.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+grep \^CONFIG_TARGET_ .config | head -n3 > tmp/.diffconfig.head
+grep '^CONFIG_ALL=y' .config >> tmp/.diffconfig.head
+grep '^CONFIG_DEVEL=y' .config >> tmp/.diffconfig.head
+grep '^CONFIG_TOOLCHAINOPTS=y' .config >> tmp/.diffconfig.head
+./scripts/config/conf --defconfig=tmp/.diffconfig.head -w tmp/.diffconfig.stage1 Config.in >/dev/null
+./scripts/kconfig.pl '>+' tmp/.diffconfig.stage1 .config >> tmp/.diffconfig.head
+./scripts/config/conf --defconfig=tmp/.diffconfig.head -w tmp/.diffconfig.stage2 Config.in >/dev/null
+./scripts/kconfig.pl '>' tmp/.diffconfig.stage2 .config >> tmp/.diffconfig.head
+cat tmp/.diffconfig.head
+rm -f tmp/.diffconfig tmp/.diffconfig.head
diff --git a/scripts/dl_cleanup.py b/scripts/dl_cleanup.py
new file mode 100755
index 0000000..d086761
--- /dev/null
+++ b/scripts/dl_cleanup.py
@@ -0,0 +1,237 @@
+#!/usr/bin/env python3
+"""
+# OpenWrt download directory cleanup utility.
+# Delete all but the very last version of the program tarballs.
+#
+# Copyright (C) 2010-2015 Michael Buesch <m@bues.ch>
+# Copyright (C) 2013-2015 OpenWrt.org
+"""
+
+from __future__ import print_function
+
+import sys
+import os
+import re
+import getopt
+
+# Commandline options
+opt_dryrun = False
+
+
+def parseVer_1234(match, filepath):
+	progname = match.group(1)
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      (int(match.group(4)) << 32) |\
+		      (int(match.group(5)) << 16)
+	return (progname, progversion)
+
+def parseVer_123(match, filepath):
+	progname = match.group(1)
+	try:
+		patchlevel = match.group(5)
+	except IndexError as e:
+		patchlevel = None
+	if patchlevel:
+		patchlevel = ord(patchlevel[0])
+	else:
+		patchlevel = 0
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      (int(match.group(4)) << 32) |\
+		      patchlevel
+	return (progname, progversion)
+
+def parseVer_12(match, filepath):
+	progname = match.group(1)
+	try:
+		patchlevel = match.group(4)
+	except IndexError as e:
+		patchlevel = None
+	if patchlevel:
+		patchlevel = ord(patchlevel[0])
+	else:
+		patchlevel = 0
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      patchlevel
+	return (progname, progversion)
+
+def parseVer_r(match, filepath):
+	progname = match.group(1)
+	progversion = (int(match.group(2)) << 64)
+	return (progname, progversion)
+
+def parseVer_ymd(match, filepath):
+	progname = match.group(1)
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      (int(match.group(4)) << 32)
+	return (progname, progversion)
+
+def parseVer_GIT(match, filepath):
+	progname = match.group(1)
+	st = os.stat(filepath)
+	progversion = int(st.st_mtime) << 64
+	return (progname, progversion)
+
+extensions = (
+	".tar.gz",
+	".tar.bz2",
+	".tar.xz",
+	".orig.tar.gz",
+	".orig.tar.bz2",
+	".orig.tar.xz",
+	".zip",
+	".tgz",
+	".tbz",
+	".txz",
+)
+
+versionRegex = (
+	(re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)\.(\d+)"), parseVer_1234),	# xxx-1.2.3.4
+	(re.compile(r"(.+)[-_](\d\d\d\d)-?(\d\d)-?(\d\d)"), parseVer_ymd),	# xxx-YYYY-MM-DD
+	(re.compile(r"(.+)[-_]([0-9a-fA-F]{40,40})"), parseVer_GIT),		# xxx-GIT_SHASUM
+	(re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)(\w?)"), parseVer_123),	# xxx-1.2.3a
+	(re.compile(r"(.+)[-_](\d+)_(\d+)_(\d+)"), parseVer_123),		# xxx-1_2_3
+	(re.compile(r"(.+)[-_](\d+)\.(\d+)(\w?)"), parseVer_12),		# xxx-1.2a
+	(re.compile(r"(.+)[-_]r?(\d+)"), parseVer_r),				# xxx-r1111
+)
+
+blacklist = [
+	("linux",		re.compile(r"linux-\d.*")),
+	("gcc",			re.compile(r"gcc-.*")),
+	("wl_apsta",		re.compile(r"wl_apsta.*")),
+	(".fw",			re.compile(r".*\.fw")),
+	(".arm",		re.compile(r".*\.arm")),
+	(".bin",		re.compile(r".*\.bin")),
+	("rt-firmware",		re.compile(r"RT[\d\w]+_Firmware.*")),
+]
+
+class EntryParseError(Exception): pass
+
+class Entry:
+	def __init__(self, directory, filename):
+		self.directory = directory
+		self.filename = filename
+		self.progname = ""
+		self.fileext = ""
+
+		for ext in extensions:
+			if filename.endswith(ext):
+				filename = filename[0:0-len(ext)]
+				self.fileext = ext
+				break
+		else:
+			print(self.filename, "has an unknown file-extension")
+			raise EntryParseError("ext")
+		for (regex, parseVersion) in versionRegex:
+			match = regex.match(filename)
+			if match:
+				(self.progname, self.version) = parseVersion(
+					match, directory + "/" + filename + self.fileext)
+				break
+		else:
+			print(self.filename, "has an unknown version pattern")
+			raise EntryParseError("ver")
+
+	def getPath(self):
+		return (self.directory + "/" + self.filename).replace("//", "/")
+
+	def deleteFile(self):
+		path = self.getPath()
+		print("Deleting", path)
+		if not opt_dryrun:
+			os.unlink(path)
+
+	def __ge__(self, y):
+		return self.version >= y.version
+
+def usage():
+	print("OpenWrt download directory cleanup utility")
+	print("Usage: " + sys.argv[0] + " [OPTIONS] <path/to/dl>")
+	print("")
+	print(" -d|--dry-run            Do a dry-run. Don't delete any files")
+	print(" -B|--show-blacklist     Show the blacklist and exit")
+	print(" -w|--whitelist ITEM     Remove ITEM from blacklist")
+
+def main(argv):
+	global opt_dryrun
+
+	try:
+		(opts, args) = getopt.getopt(argv[1:],
+			"hdBw:",
+			[ "help", "dry-run", "show-blacklist", "whitelist=", ])
+		if len(args) != 1:
+			usage()
+			return 1
+	except getopt.GetoptError as e:
+		usage()
+		return 1
+	directory = args[0]
+	for (o, v) in opts:
+		if o in ("-h", "--help"):
+			usage()
+			return 0
+		if o in ("-d", "--dry-run"):
+			opt_dryrun = True
+		if o in ("-w", "--whitelist"):
+			for i in range(0, len(blacklist)):
+				(name, regex) = blacklist[i]
+				if name == v:
+					del blacklist[i]
+					break
+			else:
+				print("Whitelist error: Item", v,\
+				      "is not in blacklist")
+				return 1
+		if o in ("-B", "--show-blacklist"):
+			for (name, regex) in blacklist:
+				sep = "\t\t"
+				if len(name) >= 8:
+					sep = "\t"
+				print("%s%s(%s)" % (name, sep, regex.pattern))
+			return 0
+
+	# Create a directory listing and parse the file names.
+	entries = []
+	for filename in os.listdir(directory):
+		if filename == "." or filename == "..":
+			continue
+		for (name, regex) in blacklist:
+			if regex.match(filename):
+				if opt_dryrun:
+					print(filename, "is blacklisted")
+				break
+		else:
+			try:
+				entries.append(Entry(directory, filename))
+			except EntryParseError as e:
+				pass
+
+	# Create a map of programs
+	progmap = {}
+	for entry in entries:
+		if entry.progname in progmap.keys():
+			progmap[entry.progname].append(entry)
+		else:
+			progmap[entry.progname] = [entry,]
+
+	# Traverse the program map and delete everything but the last version
+	for prog in progmap:
+		lastVersion = None
+		versions = progmap[prog]
+		for version in versions:
+			if lastVersion is None or version >= lastVersion:
+				lastVersion = version
+		if lastVersion:
+			for version in versions:
+				if version is not lastVersion:
+					version.deleteFile()
+			if opt_dryrun:
+				print("Keeping", lastVersion.getPath())
+
+	return 0
+
+if __name__ == "__main__":
+	sys.exit(main(sys.argv))
diff --git a/scripts/download.pl b/scripts/download.pl
new file mode 100755
index 0000000..abe0bfa
--- /dev/null
+++ b/scripts/download.pl
@@ -0,0 +1,211 @@
+#!/usr/bin/env perl
+# 
+# Copyright (C) 2006 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+use strict;
+use warnings;
+use File::Basename;
+use File::Copy;
+
+@ARGV > 2 or die "Syntax: $0 <target dir> <filename> <md5sum> [<mirror> ...]\n";
+
+my $target = shift @ARGV;
+my $filename = shift @ARGV;
+my $md5sum = shift @ARGV;
+my $scriptdir = dirname($0);
+my @mirrors;
+my $ok;
+
+sub localmirrors {
+	my @mlist;
+	open LM, "$scriptdir/localmirrors" and do {
+	    while (<LM>) {
+			chomp $_;
+			push @mlist, $_ if $_;
+		}
+		close LM;
+	};
+	open CONFIG, "<".$ENV{'TOPDIR'}."/.config" and do {
+		while (<CONFIG>) {
+			/^CONFIG_LOCALMIRROR="(.+)"/ and do {
+				chomp;
+				my @local_mirrors = split(/;/, $1);
+				push @mlist, @local_mirrors;
+			};
+		}
+		close CONFIG;
+	};
+
+	my $mirror = $ENV{'DOWNLOAD_MIRROR'};
+	$mirror and push @mlist, split(/;/, $mirror);
+
+	return @mlist;
+}
+
+sub which($) {
+	my $prog = shift;
+	my $res = `which $prog`;
+	$res or return undef;
+	$res =~ /^no / and return undef;
+	$res =~ /not found/ and return undef;
+	return $res;
+}
+
+my $md5cmd = which("md5sum") || which("md5") || die 'no md5 checksum program found, please install md5 or md5sum';
+chomp $md5cmd;
+
+sub download
+{
+	my $mirror = shift;
+	my $options = $ENV{WGET_OPTIONS} || "";
+
+	$mirror =~ s!/$!!;
+
+	if ($mirror =~ s!^file://!!) {
+		if (! -d "$mirror") {
+			print STDERR "Wrong local cache directory -$mirror-.\n";
+			cleanup();
+			return;
+		}
+
+		if (! -d "$target") {
+			system("mkdir", "-p", "$target/");
+		}
+
+		if (! open TMPDLS, "find $mirror -follow -name $filename 2>/dev/null |") {
+			print("Failed to search for $filename in $mirror\n");
+			return;
+		}
+
+		my $link;
+
+		while (defined(my $line = readline TMPDLS)) {
+			chomp ($link = $line);
+			if ($. > 1) {
+				print("$. or more instances of $filename in $mirror found . Only one instance allowed.\n");
+				return;
+			}
+		}
+
+		close TMPDLS;
+
+		if (! $link) {
+			print("No instances of $filename found in $mirror.\n");
+			return;
+		}
+
+		print("Copying $filename from $link\n");
+		copy($link, "$target/$filename.dl");
+
+		if (system("$md5cmd '$target/$filename.dl' > '$target/$filename.md5sum'")) {
+			print("Failed to generate md5 sum for $filename\n");
+			return;
+		}
+	} else {
+		open WGET, "wget -t5 --timeout=20 --no-check-certificate $options -O- '$mirror/$filename' |" or die "Cannot launch wget.\n";
+		open MD5SUM, "| $md5cmd > '$target/$filename.md5sum'" or die "Cannot launch md5sum.\n";
+		open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
+		my $buffer;
+		while (read WGET, $buffer, 1048576) {
+			print MD5SUM $buffer;
+			print OUTPUT $buffer;
+		}
+		close MD5SUM;
+		close WGET;
+		close OUTPUT;
+
+		if ($? >> 8) {
+			print STDERR "Download failed.\n";
+			cleanup();
+			return;
+		}
+	}
+
+	my $sum = `cat "$target/$filename.md5sum"`;
+	$sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
+	$sum = $1;
+
+	if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
+		print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n";
+		cleanup();
+		return;
+	}
+
+	unlink "$target/$filename";
+	system("mv", "$target/$filename.dl", "$target/$filename");
+	cleanup();
+}
+
+sub cleanup
+{
+	unlink "$target/$filename.dl";
+	unlink "$target/$filename.md5sum";
+}
+
+@mirrors = localmirrors();
+
+foreach my $mirror (@ARGV) {
+	if ($mirror =~ /^\@SF\/(.+)$/) {
+		# give sourceforge a few more tries, because it redirects to different mirrors
+		for (1 .. 5) {
+			push @mirrors, "http://downloads.sourceforge.net/$1";
+		}
+	} elsif ($mirror =~ /^\@GNU\/(.+)$/) {
+		push @mirrors, "http://ftpmirror.gnu.org/$1";
+		push @mirrors, "http://ftp.gnu.org/pub/gnu/$1";
+		push @mirrors, "ftp://ftp.belnet.be/mirror/ftp.gnu.org/gnu/$1";
+		push @mirrors, "ftp://ftp.mirror.nl/pub/mirror/gnu/$1";
+		push @mirrors, "http://mirror.switch.ch/ftp/mirror/gnu/$1";
+	} elsif ($mirror =~ /^\@SAVANNAH\/(.+)$/) {
+		push @mirrors, "http://download.savannah.gnu.org/releases/$1";
+		push @mirrors, "http://nongnu.uib.no/$1";
+		push @mirrors, "http://ftp.igh.cnrs.fr/pub/nongnu/$1";
+		push @mirrors, "http://download-mirror.savannah.gnu.org/releases/$1";
+	} elsif ($mirror =~ /^\@KERNEL\/(.+)$/) {
+		my @extra = ( $1 );
+		if ($filename =~ /linux-\d+\.\d+(?:\.\d+)?-rc/) {
+			push @extra, "$extra[0]/testing";
+		} elsif ($filename =~ /linux-(\d+\.\d+(?:\.\d+)?)/) {
+			push @extra, "$extra[0]/longterm/v$1";
+		}		
+		foreach my $dir (@extra) {
+			push @mirrors, "https://kernel.org/pub/$dir";
+			push @mirrors, "ftp://kernel.org/pub/$dir";
+		}
+    } elsif ($mirror =~ /^\@GNOME\/(.+)$/) {
+		push @mirrors, "http://ftp.gnome.org/pub/GNOME/sources/$1";
+		push @mirrors, "http://ftp.unina.it/pub/linux/GNOME/sources/$1";
+		push @mirrors, "http://fr2.rpmfind.net/linux/gnome.org/sources/$1";
+		push @mirrors, "ftp://ftp.dit.upm.es/pub/GNOME/sources/$1";
+		push @mirrors, "ftp://ftp.no.gnome.org/pub/GNOME/sources/$1";
+		push @mirrors, "http://ftp.acc.umu.se/pub/GNOME/sources/$1";
+		push @mirrors, "http://ftp.belnet.be/mirror/ftp.gnome.org/sources/$1";
+		push @mirrors, "http://linorg.usp.br/gnome/sources/$1";
+		push @mirrors, "http://mirror.aarnet.edu.au/pub/GNOME/sources/$1";
+		push @mirrors, "http://mirrors.ibiblio.org/pub/mirrors/gnome/sources/$1";
+		push @mirrors, "ftp://ftp.cse.buffalo.edu/pub/Gnome/sources/$1";
+		push @mirrors, "ftp://ftp.nara.wide.ad.jp/pub/X11/GNOME/sources/$1";
+    }
+    else {
+		push @mirrors, $mirror;
+	}
+}
+
+#push @mirrors, 'http://mirror1.openwrt.org';
+push @mirrors, 'http://mirror2.openwrt.org/sources';
+push @mirrors, 'http://downloads.openwrt.org/sources';
+
+while (!$ok) {
+	my $mirror = shift @mirrors;
+	$mirror or die "No more mirrors to try - giving up.\n";
+
+	download($mirror);
+	-f "$target/$filename" and $ok = 1;
+}
+
+$SIG{INT} = \&cleanup;
+
diff --git a/scripts/env b/scripts/env
new file mode 100755
index 0000000..63e26eb
--- /dev/null
+++ b/scripts/env
@@ -0,0 +1,226 @@
+#!/usr/bin/env bash
+BASEDIR="$PWD"
+ENVDIR="$PWD/env"
+export GREP_OPTIONS=
+
+usage() {
+	cat <<EOF
+Usage: $0 [options] <command> [arguments]
+Commands:
+	help              This help text
+	list              List environments
+	clear             Delete all environment and revert to flat config/files
+	new <name>        Create a new environment
+	switch <name>     Switch to a different environment
+	delete <name>     Delete an environment
+	rename <newname>  Rename the current environment
+	diff              Show differences between current state and environment
+	save [message]    Save your changes to the environment, optionally using
+	                  the given commit message
+	revert            Revert your changes since last save
+
+Options:
+
+EOF
+	exit ${1:-1}
+}
+
+error() {
+	echo "$0: $*"
+	exit 1
+}
+
+ask_bool() {
+	local DEFAULT="$1"; shift
+	local def defstr val
+	case "$DEFAULT" in
+		1) def=0; defstr="Y/n";;
+		0) def=1; defstr="y/N";;
+		*) def=;  defstr="y/n";;
+	esac
+	while [ -z "$val" ]; do
+		local VAL
+
+		echo -n "$* ($defstr): "
+		read VAL
+		case "$VAL" in
+			y*|Y*) val=0;;
+			n*|N*) val=1;;
+			*) val="$def";;
+		esac
+	done
+	return "$val"
+}
+
+env_init() {
+	local CREATE="$1"
+	if [ -z "$CREATE" ]; then
+		[ -d "$ENVDIR" ] || exit 0
+	fi
+	[ -x "$(which git 2>/dev/null)" ] || error "Git is not installed"
+	mkdir -p "$ENVDIR" || error "Failed to create the environment directory"
+	cd "$ENVDIR" || error "Failed to switch to the environment directory"
+	[ -d .git ] || { 
+		git init &&
+		touch .config &&
+		mkdir files &&
+		git add . && 
+		git commit -q -m "Initial import"
+	} || {
+		rm -rf .git
+		error "Failed to initialize the environment directory"
+	}
+}
+
+env_sync_data() {
+	[ \! -L "$BASEDIR/.config" -a -f "$BASEDIR/.config" ] && mv "$BASEDIR/.config" "$ENVDIR"
+	git add .
+	git add -u
+}
+
+env_sync() {
+	local STR="$1"
+	env_sync_data
+	git commit -m "${STR:-Update} at $(date)"
+}
+
+env_link_config() {
+	rm -f "$BASEDIR/.config"
+	ln -s env/.config "$BASEDIR/.config"
+	mkdir -p "$ENVDIR/files"
+	[ -L "$BASEDIR/files" ] || ln -s env/files "$BASEDIR/files"
+}
+
+env_do_reset() {
+	git reset --hard HEAD
+	git clean -d -f
+}
+
+env_list() {
+	env_init
+	git branch --color | grep -vE '^. master$'
+}
+
+env_diff() {
+	env_init
+	env_sync_data
+	git diff --cached --color
+	env_link_config
+}
+
+env_save() {
+	env_init
+	env_sync "$@"
+	env_link_config
+}
+
+env_revert() {
+	env_init
+	env_do_reset
+	env_link_config
+}
+
+env_ask_sync() {
+	env_sync_data
+	LINES="$(env_diff | wc -l)" # implies env_init
+	[ "$LINES" -gt 0 ] && {
+		if ask_bool 1 "Do you want to save your changes"; then
+			env_sync
+		else
+			env_do_reset
+		fi
+	}
+}
+
+env_clear() {
+	env_init
+	[ -L "$BASEDIR/.config" ] && rm -f "$BASEDIR/.config"
+	[ -L "$BASEDIR/files" ] && rm -f "$BASEDIR/files"
+	[ -f "$ENVDIR/.config" ] || ( cd "$ENVDIR/files" && find | grep -vE '^\.$' > /dev/null )
+	env_sync_data
+	if ask_bool 1 "Do you want to keep your current config and files"; then
+		mkdir -p "$BASEDIR/files"
+		shopt -s dotglob
+		cp -a "$ENVDIR/files/"* "$BASEDIR/files" 2>/dev/null >/dev/null
+		shopt -u dotglob
+		cp "$ENVDIR/.config" "$BASEDIR/"
+	else
+		rm -rf "$BASEDIR/files" "$BASEDIR/.config"
+	fi
+	cd "$BASEDIR"
+	rm -rf "$ENVDIR"
+}
+
+env_delete() {
+	local name="${1##*/}"
+	env_init
+	[ -z "$name" ] && usage
+	branch="$(git branch | grep '^\* ' | awk '{print $2}')"
+	[ "$name" = "$branch" ] && error "cannot delete the currently selected environment"
+	git branch -D "$name"
+}
+
+env_switch() {
+	local name="${1##*/}"
+	[ -z "$name" ] && usage
+
+	env_init
+	env_ask_sync
+	git checkout "$name" || error "environment '$name' not found"
+	env_link_config
+}
+
+env_rename() {
+	local NAME="${1##*/}"
+	env_init
+	git branch -m "$NAME"
+}
+
+env_new() {
+	local NAME="$1"
+	local branch
+	local from="master"
+
+	[ -z "$NAME" ] && usage
+	env_init 1
+	
+	branch="$(git branch | grep '^\* ' | awk '{print $2}')"
+	if [ -n "$branch" -a "$branch" != "master" ]; then
+		env_ask_sync
+		if ask_bool 0 "Do you want to clone the current environment?"; then
+			from="$branch"
+		fi
+		rm -f "$BASEDIR/.config" "$BASEDIR/files"
+	fi
+	git checkout -b "$1" "$from"
+	if [ -f "$BASEDIR/.config" -o -d "$BASEDIR/files" ]; then
+		if ask_bool 1 "Do you want to start your configuration repository with the current configuration?"; then
+			[ -d "$BASEDIR/files" -a \! -L "$BASEDIR/files" ] && {
+				mkdir -p "$ENVDIR/files"
+				shopt -s dotglob
+				mv "$BASEDIR/files/"* "$ENVDIR/files/" 2>/dev/null
+				shopt -u dotglob
+				rmdir "$BASEDIR/files"
+			}
+			env_sync
+		else
+			rm -rf "$BASEDIR/.config" "$BASEDIR/files"
+		fi
+	fi
+	env_link_config
+}
+
+COMMAND="$1"; shift
+case "$COMMAND" in
+	help) usage 0;;
+	new) env_new "$@";;
+	list) env_list "$@";;
+	clear) env_clear "$@";;
+	switch) env_switch "$@";;
+	delete) env_delete "$@";;
+	rename) env_rename "$@";;
+	diff) env_diff "$@";;
+	save) env_save "$@";;
+	revert) env_revert "$@";;
+	*) usage;;
+esac
diff --git a/scripts/ext-toolchain.sh b/scripts/ext-toolchain.sh
new file mode 100755
index 0000000..a552fbe
--- /dev/null
+++ b/scripts/ext-toolchain.sh
@@ -0,0 +1,581 @@
+#!/usr/bin/env bash
+#
+#   Script for various external toolchain tasks, refer to
+#   the --help output for more information.
+#
+#   Copyright (C) 2012 Jo-Philipp Wich <jow@openwrt.org>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+CC=""
+CXX=""
+CPP=""
+
+CFLAGS=""
+TOOLCHAIN="."
+
+LIBC_TYPE=""
+
+
+# Library specs
+LIB_SPECS="
+	c:        ld-* lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}
+	rt:       librt-* librt
+	pthread:  libpthread-* libpthread
+	stdcpp:   libstdc++
+	gcc:      libgcc_s
+	ssp:      libssp
+	gfortran: libgfortran
+"
+
+# Binary specs
+BIN_SPECS="
+	ldd:       ldd
+	ldconfig:  ldconfig
+	gdb:       gdb
+	gdbserver: gdbserver
+"
+
+
+test_c() {
+	cat <<-EOT | "${CC:-false}" $CFLAGS -o /dev/null -x c - 2>/dev/null
+		#include <stdio.h>
+
+		int main(int argc, char **argv)
+		{
+			printf("Hello, world!\n");
+			return 0;
+		}
+	EOT
+}
+
+test_cxx() {
+	cat <<-EOT | "${CXX:-false}" $CFLAGS -o /dev/null -x c++ - 2>/dev/null
+		#include <iostream>
+
+		using namespace std;
+
+		int main()
+		{
+			cout << "Hello, world!" << endl;
+			return 0;
+		}
+	EOT
+}
+
+test_softfloat() {
+	cat <<-EOT | "$CC" $CFLAGS -msoft-float -o /dev/null -x c - 2>/dev/null
+		int main(int argc, char **argv)
+		{
+			double a = 0.1;
+			double b = 0.2;
+			double c = (a + b) / (a * b);
+			return 1;
+		}
+	EOT
+}
+
+test_uclibc() {
+	local sysroot="$("$CC" $CFLAGS -print-sysroot 2>/dev/null)"
+	if [ -d "${sysroot:-$TOOLCHAIN}" ]; then
+		local lib
+		for lib in "${sysroot:-$TOOLCHAIN}"/{lib,usr/lib,usr/local/lib}/ld*-uClibc*.so*; do
+			if [ -f "$lib" ] && [ ! -h "$lib" ]; then
+				return 0
+			fi
+		done
+	fi
+	return 1
+}
+
+test_feature() {
+	local feature="$1"; shift
+
+	# find compilers, libc type
+	probe_cc
+	probe_cxx
+	probe_libc
+
+	# common toolchain feature tests
+	case "$feature" in
+		c)     test_c;         return $? ;;
+		c++)   test_cxx;       return $? ;;
+		soft*) test_softfloat; return $? ;;
+	esac
+
+	# assume eglibc/glibc supports all libc features
+	if [ "$LIBC_TYPE" != "uclibc" ]; then
+		return 0
+	fi
+
+	# uclibc feature tests
+	local inc
+	local sysroot="$("$CC" "$@" -muclibc -print-sysroot 2>/dev/null)"
+	for inc in "include" "usr/include" "usr/local/include"; do
+		local conf="${sysroot:-$TOOLCHAIN}/$inc/bits/uClibc_config.h"
+		if [ -f "$conf" ]; then
+			case "$feature" in
+				lfs)     grep -q '__UCLIBC_HAS_LFS__ 1'     "$conf"; return $?;;
+				ipv6)    grep -q '__UCLIBC_HAS_IPV6__ 1'    "$conf"; return $?;;
+				rpc)     grep -q '__UCLIBC_HAS_RPC__ 1'     "$conf"; return $?;;
+				locale)  grep -q '__UCLIBC_HAS_LOCALE__ 1'  "$conf"; return $?;;
+				wchar)   grep -q '__UCLIBC_HAS_WCHAR__ 1'   "$conf"; return $?;;
+				threads) grep -q '__UCLIBC_HAS_THREADS__ 1' "$conf"; return $?;;
+			esac
+		fi
+	done
+
+	return 1
+}
+
+
+find_libs() {
+	local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
+
+	if [ -n "$spec" ] && probe_cpp; then
+		local libdir libdirs
+		for libdir in $(
+			"$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
+				sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'
+		); do
+			if [ -d "$libdir" ]; then
+				libdirs="$libdirs $(cd "$libdir"; pwd)/"
+			fi
+		done
+
+		local pattern
+		for pattern in $(eval echo $spec); do
+			find $libdirs -name "$pattern.so*" | sort -u
+		done
+
+		return 0
+	fi
+
+	return 1
+}
+
+find_bins() {
+	local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
+
+	if [ -n "$spec" ] && probe_cpp; then
+		local sysroot="$("$CPP" -print-sysroot)"
+
+		local bindir bindirs
+		for bindir in $(
+			echo "${sysroot:-$TOOLCHAIN}/bin";
+			echo "${sysroot:-$TOOLCHAIN}/usr/bin";
+			echo "${sysroot:-$TOOLCHAIN}/usr/local/bin";
+ 			"$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
+				sed -ne 's#:# #g; s#^COMPILER_PATH=##p'
+		); do
+			if [ -d "$bindir" ]; then
+				bindirs="$bindirs $(cd "$bindir"; pwd)/"
+			fi
+		done
+
+		local pattern
+		for pattern in $(eval echo $spec); do
+			find $bindirs -name "$pattern" | sort -u
+		done
+
+		return 0
+	fi
+
+	return 1
+}
+
+
+wrap_bin_cc() {
+	local out="$1"
+	local bin="$2"
+
+	echo    '#!/bin/sh'                                                > "$out"
+	echo    'for arg in "$@"; do'                                     >> "$out"
+	echo    ' case "$arg" in -l*|-L*|-shared|-static)'                >> "$out"
+	echo -n '  exec "'"$bin"'" '"$CFLAGS"' ${STAGING_DIR:+'           >> "$out"
+	echo -n '-idirafter "$STAGING_DIR/usr/include" '                  >> "$out"
+	echo -n '-L "$STAGING_DIR/usr/lib" '                              >> "$out"
+	echo    '-Wl,-rpath-link,"$STAGING_DIR/usr/lib"} "$@" ;;'         >> "$out"
+	echo    ' esac'                                                   >> "$out"
+	echo    'done'                                                    >> "$out"
+	echo -n 'exec "'"$bin"'" '"$CFLAGS"' ${STAGING_DIR:+'             >> "$out"
+	echo    '-idirafter "$STAGING_DIR/usr/include"} "$@"'             >> "$out"
+
+	chmod +x "$out"
+}
+
+wrap_bin_ld() {
+	local out="$1"
+	local bin="$2"
+
+	echo    '#!/bin/sh'                                                > "$out"
+	echo -n 'exec "'"$bin"'" ${STAGING_DIR:+'                         >> "$out"
+	echo -n '-L "$STAGING_DIR/usr/lib" '                              >> "$out"
+	echo    '-rpath-link "$STAGING_DIR/usr/lib"} "$@"'                >> "$out"
+
+	chmod +x "$out"
+}
+
+wrap_bin_other() {
+	local out="$1"
+	local bin="$2"
+
+	echo    '#!/bin/sh'                                                > "$out"
+	echo    'exec "'"$bin"'" "$@"'                                    >> "$out"
+
+	chmod +x "$out"
+}
+
+wrap_bins() {
+	if probe_cc; then
+		mkdir -p "$1" || return 1
+
+		local cmd
+		for cmd in "${CC%-*}-"*; do
+			if [ -x "$cmd" ]; then
+				local out="$1/${cmd##*/}"
+				local bin="$cmd"
+
+				if [ -x "$out" ] && ! grep -q STAGING_DIR "$out"; then
+					mv "$out" "$out.bin"
+					bin='$(dirname "$0")/'"${out##*/}"'.bin'
+				fi
+
+				case "${cmd##*/}" in
+					*-*cc|*-*cc-*|*-*++|*-*++-*|*-cpp)
+						wrap_bin_cc "$out" "$bin"
+					;;
+					*-ld)
+						wrap_bin_ld "$out" "$bin"
+					;;
+					*)
+						wrap_bin_other "$out" "$bin"
+					;;
+				esac
+			fi
+		done
+
+		return 0
+	fi
+
+	return 1
+}
+
+
+print_config() {
+	local mktarget="$1"
+	local mksubtarget
+
+	local target="$("$CC" $CFLAGS -dumpmachine)"
+	local cpuarch="${target%%-*}"
+	local prefix="${CC##*/}"; prefix="${prefix%-*}-"
+	local config="${0%/scripts/*}/.config"
+
+	# if no target specified, print choice list and exit
+	if [ -z "$mktarget" ]; then
+		# prepare metadata
+		if [ ! -f "${0%/scripts/*}/tmp/.targetinfo" ]; then
+			"${0%/*}/scripts/config/mconf" prepare-tmpinfo
+		fi
+
+		local mktargets=$(
+			sed -ne "
+				/^Target: / { h };
+				/^Target-Arch: $cpuarch\$/ { x; s#^Target: ##p }
+			" "${0%/scripts/*}/tmp/.targetinfo" | sort -u
+		)
+
+		for mktarget in $mktargets; do
+			case "$mktarget" in */*)
+				mktargets=$(echo "$mktargets" | sed -e "/^${mktarget%/*}\$/d")
+			esac
+		done
+
+		if [ -n "$mktargets" ]; then
+			echo "Available targets:"                               >&2
+			echo $mktargets                                         >&2
+		else
+			echo -e "Could not find a suitable OpenWrt target for " >&2
+			echo -e "CPU architecture '$cpuarch' - you need to "    >&2
+			echo -e "define one first!"                             >&2
+		fi
+		return 1
+	fi
+
+	# bail out if there is a .config already
+	if [ -f "${0%/scripts/*}/.config" ]; then
+		echo "There already is a .config file, refusing to overwrite!" >&2
+		return 1
+	fi
+
+	case "$mktarget" in */*)
+		mksubtarget="${mktarget#*/}"
+		mktarget="${mktarget%/*}"
+	;; esac
+
+
+	echo "CONFIG_TARGET_${mktarget}=y" > "$config"
+
+	if [ -n "$mksubtarget" ]; then
+		echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
+	fi
+
+	if test_feature "softfloat"; then
+		echo "CONFIG_SOFT_FLOAT=y" >> "$config"
+	else
+		echo "# CONFIG_SOFT_FLOAT is not set" >> "$config"
+	fi
+
+	if test_feature "ipv6"; then
+		echo "CONFIG_IPV6=y" >> "$config"
+	else
+		echo "# CONFIG_IPV6 is not set" >> "$config"
+	fi
+
+	if test_feature "locale"; then
+		echo "CONFIG_BUILD_NLS=y" >> "$config"
+	else
+		echo "# CONFIG_BUILD_NLS is not set" >> "$config"
+	fi
+
+	echo "CONFIG_DEVEL=y" >> "$config"
+	echo "CONFIG_EXTERNAL_TOOLCHAIN=y" >> "$config"
+	echo "CONFIG_TOOLCHAIN_ROOT=\"$TOOLCHAIN\"" >> "$config"
+	echo "CONFIG_TOOLCHAIN_PREFIX=\"$prefix\"" >> "$config"
+	echo "CONFIG_TARGET_NAME=\"$target\"" >> "$config"
+
+	if [ "$LIBC_TYPE" != glibc ]; then
+		echo "CONFIG_TOOLCHAIN_LIBC=\"$LIBC_TYPE\"" >> "$config"
+	fi
+
+	local lib
+	for lib in C RT PTHREAD GCC STDCPP SSP GFORTRAN; do
+		local file
+		local spec=""
+		local llib="$(echo "$lib" | sed -e 's#.*#\L&#')"
+		for file in $(find_libs "$lib"); do
+			spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
+		done
+		if [ -n "$spec" ]; then
+			echo "CONFIG_PACKAGE_lib${llib}=y" >> "$config"
+			echo "CONFIG_LIB${lib}_FILE_SPEC=\"$spec\"" >> "$config"
+		else
+			echo "# CONFIG_PACKAGE_lib${llib} is not set" >> "$config"
+		fi
+	done
+
+	local bin
+	for bin in LDD LDCONFIG; do
+		local file
+		local spec=""
+		local lbin="$(echo "$bin" | sed -e 's#.*#\L&#')"
+		for file in $(find_bins "$bin"); do
+			spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
+		done
+		if [ -n "$spec" ]; then
+			echo "CONFIG_PACKAGE_${lbin}=y" >> "$config"
+			echo "CONFIG_${bin}_FILE_SPEC=\"$spec\"" >> "$config"
+		else
+			echo "# CONFIG_PACKAGE_${lbin} is not set" >> "$config"
+		fi
+	done
+
+	# inflate
+	make -C "${0%/scripts/*}" defconfig
+	return 0
+}
+
+
+probe_cc() {
+	if [ -z "$CC" ]; then
+		local bin
+		for bin in "bin" "usr/bin" "usr/local/bin"; do
+			local cmd
+			for cmd in "$TOOLCHAIN/$bin/"*-*cc*; do
+				if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
+					CC="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
+					return 0
+				fi
+			done
+		done
+		return 1
+	fi
+	return 0
+}
+
+probe_cxx() {
+	if [ -z "$CXX" ]; then
+		local bin
+		for bin in "bin" "usr/bin" "usr/local/bin"; do
+			local cmd
+			for cmd in "$TOOLCHAIN/$bin/"*-*++*; do
+				if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
+					CXX="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
+					return 0
+				fi
+			done
+		done
+		return 1
+	fi
+	return 0
+}
+
+probe_cpp() {
+	if [ -z "$CPP" ]; then
+		local bin
+		for bin in "bin" "usr/bin" "usr/local/bin"; do
+			local cmd
+			for cmd in "$TOOLCHAIN/$bin/"*-cpp*; do
+				if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
+					CPP="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
+					return 0
+				fi
+			done
+		done
+		return 1
+	fi
+	return 0
+}
+
+probe_libc() {
+	if [ -z "$LIBC_TYPE" ]; then
+		if test_uclibc; then
+			LIBC_TYPE="uclibc"
+		else
+			LIBC_TYPE="glibc"
+		fi
+	fi
+	return 0
+}
+
+
+while [ -n "$1" ]; do
+	arg="$1"; shift
+	case "$arg" in
+		--toolchain)
+			[ -d "$1" ] || {
+				echo "Toolchain directory '$1' does not exist." >&2
+				exit 1
+			}
+			TOOLCHAIN="$(cd "$1"; pwd)"; shift
+		;;
+
+		--cflags)
+			CFLAGS="${CFLAGS:+$CFLAGS }$1"; shift
+		;;
+
+		--print-libc)
+			if probe_cc; then
+				probe_libc
+				echo "$LIBC_TYPE"
+				exit 0
+			fi
+			echo "No C compiler found in '$TOOLCHAIN'." >&2
+			exit 1
+		;;
+
+		--print-target)
+			if probe_cc; then
+				exec "$CC" $CFLAGS -dumpmachine
+			fi
+			echo "No C compiler found in '$TOOLCHAIN'." >&2
+			exit 1
+		;;
+
+		--print-bin)
+			if [ -z "$1" ]; then
+				echo "Available programs:"                      >&2
+				echo $(echo "$BIN_SPECS" | sed -ne 's#:.*$##p') >&2
+				exit 1
+			fi
+
+			find_bins "$1" || exec "$0" --toolchain "$TOOLCHAIN" --print-bin
+			exit 0
+		;;
+
+		--print-libs)
+			if [ -z "$1" ]; then
+				echo "Available libraries:"                     >&2
+				echo $(echo "$LIB_SPECS" | sed -ne 's#:.*$##p') >&2
+				exit 1
+			fi
+
+			find_libs "$1" || exec "$0" --toolchain "$TOOLCHAIN" --print-libs
+			exit 0
+		;;
+
+		--test)
+			test_feature "$1"
+			exit $?
+		;;
+
+		--wrap)
+			[ -n "$1" ] || exec "$0" --help
+			wrap_bins "$1"
+			exit $?
+		;;
+
+		--config)
+			if probe_cc; then
+				print_config "$1"
+				exit $?
+			fi
+			echo "No C compiler found in '$TOOLCHAIN'." >&2
+			exit 1
+		;;
+
+		-h|--help)
+			me="$(basename "$0")"
+			echo -e "\nUsage:\n"                                            >&2
+			echo -e "  $me --toolchain {directory} --print-libc"            >&2
+			echo -e "    Print the libc implementation and exit.\n"         >&2
+			echo -e "  $me --toolchain {directory} --print-target"          >&2
+			echo -e "    Print the GNU target name and exit.\n"             >&2
+			echo -e "  $me --toolchain {directory} --print-bin {program}"   >&2
+			echo -e "    Print executables belonging to given program,"     >&2
+			echo -e "    omit program argument to get a list of names.\n"   >&2
+			echo -e "  $me --toolchain {directory} --print-libs {library}"  >&2
+			echo -e "    Print shared objects belonging to given library,"  >&2
+			echo -e "    omit library argument to get a list of names.\n"   >&2
+			echo -e "  $me --toolchain {directory} --test {feature}"        >&2
+			echo -e "    Test given feature, exit code indicates success."  >&2
+			echo -e "    Possible features are 'c', 'c++', 'softfloat',"    >&2
+			echo -e "    'lfs', 'rpc', 'ipv6', 'wchar', 'locale' and "      >&2
+			echo -e "    'threads'.\n"                                      >&2
+			echo -e "  $me --toolchain {directory} --wrap {directory}"      >&2
+			echo -e "    Create wrapper scripts for C and C++ compiler, "   >&2
+			echo -e "    linker, assembler and other key executables in "   >&2
+			echo -e "    the directory given with --wrap.\n"                >&2
+			echo -e "  $me --toolchain {directory} --config {target}"       >&2
+			echo -e "    Analyze the given toolchain and print a suitable"  >&2
+			echo -e "    .config for the given target. Omit target "        >&2
+			echo -e "    argument to get a list of names.\n"                >&2
+			echo -e "  $me --help"                                          >&2
+			echo -e "    Display this help text and exit.\n\n"              >&2
+			echo -e "  Most commands also take a --cflags parameter which " >&2
+			echo -e "  is used to specify C flags to be passed to the "     >&2
+			echo -e "  cross compiler when performing tests."               >&2
+			echo -e "  This paremter may be repeated multiple times."       >&2
+			exit 1
+		;;
+
+		*)
+			echo "Unknown argument '$arg'" >&2
+			exec $0 --help
+		;;
+	esac
+done
+
+exec $0 --help
diff --git a/scripts/feeds b/scripts/feeds
new file mode 100755
index 0000000..79b5284
--- /dev/null
+++ b/scripts/feeds
@@ -0,0 +1,817 @@
+#!/usr/bin/perl
+use Getopt::Std;
+use FindBin;
+use Cwd;
+use lib "$FindBin::Bin";
+use metadata;
+use warnings;
+use strict;
+use Cwd 'abs_path';
+
+chdir "$FindBin::Bin/..";
+$ENV{TOPDIR}=getcwd();
+$ENV{GIT_CONFIG_PARAMETERS}="'core.autocrlf=false'";
+$ENV{GREP_OPTIONS}="";
+
+my $mk=`which gmake 2>/dev/null`;	# select the right 'make' program
+chomp($mk);		# trim trailing newline
+$mk or $mk = "make";	# default to 'make'
+
+# check version of make
+my @mkver = split /\s+/, `$mk -v`, 4;
+my $valid_mk = 1;
+$mkver[0] =~ /^GNU/ or $valid_mk = 0;
+$mkver[1] =~ /^Make/ or $valid_mk = 0;
+$mkver[2] >= "3.81" or $valid_mk = 0;
+$valid_mk or die "Unsupported version of make found: $mk\n";
+
+my @feeds;
+my %build_packages;
+my %installed;
+my %installed_targets;
+my %feed_cache;
+
+my $feed_package = {};
+my $feed_src = {};
+my $feed_target = {};
+
+sub parse_config() {
+	my $line = 0;
+	my %name;
+
+	open FEEDS, "feeds.conf" or
+		open FEEDS, "feeds.conf.default" or
+		die "Unable to open feeds configuration";
+	while (<FEEDS>) {
+		chomp;
+		s/#.+$//;
+		next unless /\S/;
+		my @line = split /\s+/, $_, 3;
+		my @src;
+		$line++;
+
+		my $valid = 1;
+		$line[0] =~ /^src-[\w-]+$/ or $valid = 0;
+		$line[1] =~ /^\w+$/ or $valid = 0;
+		@src = split /\s+/, $line[2];
+		$valid or die "Syntax error in feeds.conf, line: $line\n";
+
+		$name{$line[1]} and die "Duplicate feed name '$line[1]', line: $line\n";
+		$name{$line[1]} = 1;
+
+		push @feeds, [$line[0], $line[1], \@src];
+	}
+	close FEEDS;
+}
+
+sub update_location($$)
+{
+	my $name = shift;
+	my $url  = shift;
+	my $old_url;
+
+	-d "./feeds/$name.tmp" or mkdir "./feeds/$name.tmp" or return 1;
+
+	if( open LOC, "< ./feeds/$name.tmp/location" )
+	{
+		chomp($old_url = readline LOC);
+		close LOC;
+	}
+
+	if( !$old_url || $old_url ne $url )
+	{
+		if( open LOC, "> ./feeds/$name.tmp/location" )
+		{
+			print LOC $url, "\n";
+			close LOC;
+		}
+		return $old_url ? 1 : 0;
+	}
+
+	return 0;
+}
+
+sub update_index($)
+{
+	my $name = shift;
+
+	-d "./feeds/$name.tmp" or mkdir "./feeds/$name.tmp" or return 1;
+	-d "./feeds/$name.tmp/info" or mkdir "./feeds/$name.tmp/info" or return 1;
+
+	system("$mk -s prepare-mk OPENWRT_BUILD= TMP_DIR=\"$ENV{TOPDIR}/feeds/$name.tmp\"");
+	system("$mk -s -f include/scan.mk IS_TTY=1 SCAN_TARGET=\"packageinfo\" SCAN_DIR=\"feeds/$name\" SCAN_NAME=\"package\" SCAN_DEPS=\"$ENV{TOPDIR}/include/package*.mk\" SCAN_DEPTH=5 SCAN_EXTRA=\"\" TMP_DIR=\"$ENV{TOPDIR}/feeds/$name.tmp\"");
+	system("$mk -s -f include/scan.mk IS_TTY=1 SCAN_TARGET=\"targetinfo\" SCAN_DIR=\"feeds/$name\" SCAN_NAME=\"target\" SCAN_DEPS=\"profiles/*.mk $ENV{TOPDIR}/include/target.mk\" SCAN_DEPTH=5 SCAN_EXTRA=\"\" SCAN_MAKEOPTS=\"TARGET_BUILD=1\" TMP_DIR=\"$ENV{TOPDIR}/feeds/$name.tmp\"");
+	system("ln -sf $name.tmp/.packageinfo ./feeds/$name.index");
+	system("ln -sf $name.tmp/.targetinfo ./feeds/$name.targetindex");
+
+	return 0;
+}
+
+my %update_method = (
+	'src-svn' => {
+		'init'		=> "svn checkout '%s' '%s'",
+		'update'	=> "svn update",
+		'controldir'	=> ".svn",
+		'revision'	=> "svn info | grep 'Revision' | cut -d ' ' -f 2 | tr -d '\n'"},
+	'src-cpy' => {
+		'init'		=> "cp -Rf '%s' '%s'",
+		'update'	=> "",
+		'revision'	=> "echo -n 'local'"},
+	'src-link' => {
+		'init'		=> "ln -s '%s' '%s'",
+		'update'	=> "",
+		'revision'	=> "echo -n 'local'"},
+	'src-git' => {
+		'init'          => "git clone --depth 1 '%s' '%s'",
+		'init_branch'   => "git clone --depth 1 --branch '%s' '%s' '%s'",
+		'init_commit'   => "git clone '%s' '%s' && cd '%s' && git checkout -b '%s' '%s' && cd -",
+		'update'	=> "git pull --ff",
+		'controldir'	=> ".git",
+		'revision'	=> "git show --abbrev-commit HEAD | head -n 1 | cut -d ' ' -f 2 | tr -d '\n'"},
+	'src-git-full' => {
+		'init'          => "git clone '%s' '%s'",
+		'init_branch'   => "git clone --branch '%s' '%s' '%s'",
+		'init_commit'   => "git clone '%s' '%s' && cd '%s' && git checkout -b '%s' '%s' && cd -",
+		'update'	=> "git pull --ff",
+		'controldir'	=> ".git",
+		'revision'	=> "git show --abbrev-commit HEAD | head -n 1 | cut -d ' ' -f 2 | tr -d '\n'"},
+	'src-gitsvn' => {
+		'init'	=> "git svn clone -r HEAD '%s' '%s'",
+		'update'	=> "git svn rebase",
+		'controldir'	=> ".git",
+		'revision'	=> "git show --abbrev-commit HEAD | head -n 1 | cut -d ' ' -f 2 | tr -d '\n'"},
+	'src-bzr' => {
+		'init'		=> "bzr checkout --lightweight '%s' '%s'",
+		'update'	=> "bzr update",
+		'controldir'	=> ".bzr"},
+	'src-hg' => {
+		'init'		=> "hg clone '%s' '%s'",
+		'update'	=> "hg pull --update",
+		'controldir'	=> ".hg"},
+	'src-darcs' => {
+		'init'    => "darcs get '%s' '%s'",
+		'update'  => "darcs pull -a",
+		'controldir' => "_darcs"},
+);
+
+# src-git: pull broken
+# src-cpy: broken if `basename $src` != $name
+
+sub update_feed_via($$$$) {
+	my $type = shift;
+	my $name = shift;
+	my $src = shift;
+	my $relocate = shift;
+
+	my $m = $update_method{$type};
+	my $localpath = "./feeds/$name";
+	my $safepath = $localpath;
+	$safepath =~ s/'/'\\''/;
+	my ($base_branch, $branch) = split(/;/, $src, 2);
+	my ($base_commit, $commit) = split(/\^/, $src, 2);
+
+	if( $relocate || !$m->{'update'} || !-d "$localpath/$m->{'controldir'}" ) {
+		system("rm -rf '$safepath'");
+		if ($m->{'init_branch'} and $branch) {
+			system(sprintf($m->{'init_branch'}, $branch, $base_branch, $safepath)) == 0 or return 1;
+		} elsif ($m->{'init_commit'} and $commit) {
+			system(sprintf($m->{'init_commit'}, $base_commit, $safepath, $safepath, $commit, $commit)) == 0 or return 1;
+		} else {
+			system(sprintf($m->{'init'}, $src, $safepath)) == 0 or return 1;
+		}
+	} elsif ($m->{'init_commit'} and $commit) {
+		# in case git hash has been provided don't update the feed
+	} else {
+		system("cd '$safepath'; $m->{'update'}") == 0 or return 1;
+	}
+
+	return 0;
+}
+
+sub get_targets($) {
+	my $file = shift;
+	my @target = parse_target_metadata($file);
+	my %target;
+	foreach my $target (@target) {
+		$target{$target->{id}} = $target;
+	}
+	return %target
+}
+
+sub get_feed($) {
+	my $feed = shift;
+
+	if (!defined($feed_cache{$feed})) {
+		my $file = "./feeds/$feed.index";
+
+		clear_packages();
+		-f $file or do {
+			print "Ignoring feed '$feed' - index missing\n";
+			return;
+		};
+		parse_package_metadata($file) or return;
+		my %target = get_targets("./feeds/$feed.targetindex");
+
+		$feed_cache{$feed} = [ { %package }, { %srcpackage }, { %target } ];
+	}
+
+	$feed_package = $feed_cache{$feed}->[0];
+	$feed_src = $feed_cache{$feed}->[1];
+	$feed_target = $feed_cache{$feed}->[2];
+	return $feed_cache{$feed}->[0];
+}
+
+sub get_installed() {
+	system("$mk -s prepare-tmpinfo OPENWRT_BUILD=");
+	clear_packages();
+	parse_package_metadata("./tmp/.packageinfo");
+	%installed = %package;
+	%installed_targets = get_targets("./tmp/.targetinfo");
+}
+
+sub search_feed {
+	my $feed = shift;
+	my @substr = @_;
+	my $display;
+
+	return unless @substr > 0;
+	get_feed($feed);
+	foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_package) {
+		my $pkg = $feed_package->{$name};
+		my $substr;
+		my $pkgmatch = 1;
+
+		next if $pkg->{vdepends};
+		foreach my $substr (@substr) {
+			my $match;
+			foreach my $key (qw(name title description src)) {
+				$pkg->{$key} and $substr and $pkg->{$key} =~ m/$substr/i and $match = 1;
+			}
+			$match or undef $pkgmatch;
+		};
+		$pkgmatch and do {
+			$display or do {
+				print "Search results in feed '$feed':\n";
+				$display = 1;
+			};
+			printf "\%-25s\t\%s\n", $pkg->{name}, $pkg->{title};
+		};
+	}
+
+	foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_target) {
+		my $target = $feed_target->{$name};
+		my $targetmatch = 1;
+
+		foreach my $substr (@substr) {
+			my $match;
+			foreach my $key (qw(id name description)) {
+				$target->{$key} and $substr and $target->{$key} =~ m/$substr/i and $match = 1;
+			}
+			$match or undef $targetmatch;
+		};
+		$targetmatch and do {
+			$display or do {
+				print "Search results in feed '$feed':\n";
+				$display = 1;
+			};
+			printf "TARGET: \%-17s\t\%s\n", $target->{id}, $target->{name};
+		};
+	}
+	return 0;
+}
+
+sub search {
+	my %opts;
+
+	getopt('r:', \%opts);
+	foreach my $feed (@feeds) {
+		search_feed($feed->[1], @ARGV) if (!defined($opts{r}) or $opts{r} eq $feed->[1]);
+	}
+}
+
+sub list_feed {
+	my $feed = shift;
+
+	get_feed($feed);
+	foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_package) {
+		my $pkg = $feed_package->{$name};
+		next if $pkg->{vdepends};
+		if($pkg->{name}) {
+			printf "\%-32s\t\%s\n", $pkg->{name}, $pkg->{title};
+		}
+	}
+
+	foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_target) {
+		my $target = $feed_target->{$name};
+		if($target->{name}) {
+			printf "TARGET: \%-24s\t\%s\n", $target->{id}, $target->{name};
+		}
+	}
+
+	return 0;
+}
+
+sub list {
+	my %opts;
+
+	getopts('r:d:nshf', \%opts);
+	if ($opts{h}) {
+		usage();
+		return 0;
+	}
+	if ($opts{n}) {
+		foreach my $feed (@feeds) {
+			printf "%s\n", $feed->[1];
+		}
+		return 0;
+	}
+	if ($opts{s}) {
+		foreach my $feed (@feeds) {
+			my $localpath = "./feeds/$feed->[1]";
+			my $m = $update_method{$feed->[0]};
+			my $revision;
+			if( !$m->{'revision'} ) {
+				$revision = "X";
+			}
+			elsif( $m->{'controldir'} && -d "$localpath/$m->{'controldir'}" ) {
+				$revision = `cd '$localpath'; $m->{'revision'}`;
+			}
+			else {
+				$revision = "local";
+			}
+			if ($opts{d}) {
+				printf "%s%s%s%s%s%s%s\n", $feed->[1], $opts{d}, $feed->[0], $opts{d}, $revision, $opts{d}, join(", ", @{$feed->[2]});
+			}
+			elsif ($opts{f}) {
+				my $uri = join(", ", @{$feed->[2]});
+				if ($revision ne "local" && $revision ne "X") {
+					$uri =~ s/[;^].*//;
+					$uri .= "^" . $revision;
+				}
+				printf "%s %s %s\n", $feed->[0], $feed->[1], $uri;
+			}
+			else {
+				printf "\%-8s \%-8s \%-8s \%s\n", $feed->[1], $feed->[0], $revision, join(", ", @{$feed->[2]});
+			}
+		}
+		return 0;
+	}
+	foreach my $feed (@feeds) {
+		list_feed($feed->[1], @ARGV) if (!defined($opts{r}) or $opts{r} eq $feed->[1]);
+	}
+	return 0;
+}
+
+sub do_install_package($$) {
+	my $feed = shift;
+	my $pkg = shift;
+	my $path = $pkg->{makefile};
+
+	if($path) {
+		$path =~ s/\/Makefile$//;
+
+		-d "./package/feeds" or mkdir "./package/feeds";
+		-d "./package/feeds/$feed->[1]" or mkdir "./package/feeds/$feed->[1]";
+		system("ln -sf ../../../$path ./package/feeds/$feed->[1]/");
+	} else {
+		warn "Package is not valid\n";
+		return 1;
+	}
+
+	return 0;
+}
+
+sub do_install_target($) {
+	my $target = shift;
+	my $path = $target->{makefile};
+
+	if ($path) {
+		$path =~ s/\/Makefile$//;
+		my $name = $path;
+		$name =~ s/.*\///;
+		my $dest = "./target/linux/$name";
+
+		-e $dest and do {
+			warn "Path $dest already exists";
+			return 1;
+		};
+
+		system("ln -sf ../../$path ./target/linux/");
+	} else {
+		warn "Target is not valid\n";
+		return 1;
+	}
+
+	return 0;
+}
+
+sub lookup_package($$) {
+	my $feed = shift;
+	my $package = shift;
+
+	foreach my $feed ($feed, @feeds) {
+		next unless $feed->[1];
+		next unless $feed_cache{$feed->[1]};
+		$feed_cache{$feed->[1]}->[0]->{$package} and return $feed;
+	}
+	return;
+}
+
+sub lookup_target($$) {
+	my $feed = shift;
+	my $target = shift;
+
+	foreach my $feed ($feed, @feeds) {
+		next unless $feed->[1];
+		next unless $feed_cache{$feed->[1]};
+		$feed_cache{$feed->[1]}->[2]->{$target} and return $feed;
+	}
+	return;
+}
+
+sub is_core_package($) {
+	my $package = shift;
+	foreach my $file ("tmp/info/.packageinfo-$package", glob("tmp/info/.packageinfo-*_$package")) {
+		next unless index($file, "tmp/info/.packageinfo-feeds_");
+		return 1 if -s $file;
+	}
+	return 0;
+}
+
+sub install_target {
+	my $feed = shift;
+	my $name = shift;
+
+	$feed = $feed_cache{$feed->[1]}->[2];
+	$feed or return 0;
+
+	my $target = $feed->{$name};
+	$target or return 0;
+
+	warn "Installing target '$name'\n";
+	return do_install_target($target);
+}
+
+sub install_package {
+	my $feed = shift;
+	my $name = shift;
+	my $force = shift;
+	my $ret = 0;
+
+	my $this_feed_target = lookup_target($feed, $name);
+	$this_feed_target and do {
+		$installed_targets{$name} and return 0;
+		install_target($this_feed_target, $name);
+		return 0;
+	};
+
+	$feed = lookup_package($feed, $name);
+	$feed or do {
+		$installed{$name} and return 0;
+		# TODO: check if it's already installed within ./package directory
+		$feed_src->{$name} or is_core_package($name) or warn "WARNING: No feed for package '$name' found, maybe it's already part of the standard packages?\n";
+		return 0;
+	};
+
+	# switch to the metadata for the selected feed
+	my $cur = get_feed($feed->[1]);
+
+	my $pkg = $cur->{$name} or return 1;
+	$pkg->{name} or do {
+		$installed{$name} and return 0;
+		# TODO: check if this is an alias package, maybe it's known by another name
+		warn "WARNING: Package '$name' is not available in feed $feed->[1].\n";
+		return 0;
+	};
+	my $src = $pkg->{src};
+	my $type = $feed->[0];
+	$src or $src = $name;
+
+	# If it's a core package and we don't want to override, just return
+	!$force and is_core_package($src) and return 0;
+
+	# previously installed packages set the runtime package
+	# newly installed packages set the source package to 1
+	$installed{$src} and $installed{$src} == 1 and return 0;
+
+	# we'll trigger the override only with the 3 conditions below:
+	# - override is allowed by command line (-f)
+	# - a package with the same src exists in the core packages list
+	# - the package previously installed is not from a feed
+	my $override = 1 if ($force and is_core_package($src) and !$installed{$name}->{feed});
+
+	# check previously installed packages
+	$installed{$name} and !$override and return 0;
+	$installed{$src} = 1;
+
+	defined($override) and $override == 1
+		and warn "Overriding core package '$src' with version from $feed->[1]\n"
+		or warn "Installing package '$src' from $feed->[1]\n";
+
+	do_install_package($feed, $pkg) == 0 or do {
+		warn "failed.\n";
+		return 1;
+	};
+
+	# install all dependencies referenced from the source package
+	foreach my $vpkg (@{$feed_src->{$src}}) {
+		foreach my $dep (@{$vpkg->{depends}}, @{$vpkg->{builddepends}}, @{$vpkg->{"builddepends/host"}}) {
+			next if $dep =~ /@/;
+			$dep =~ s/^\+//;
+			$dep =~ s/^.+://;
+			$dep =~ s/\/.+$//;
+			next unless $dep;
+			install_package($feed, $dep, 0) == 0 or $ret = 1;
+		}
+	}
+
+	return $ret;
+}
+
+sub refresh_config {
+	my $default = shift;
+
+	# workaround for timestamp check
+	system("rm -f tmp/.packageinfo");
+
+	# refresh the config
+	if ($default) {
+		system("$mk oldconfig CONFDEFAULT=\"$default\" Config.in >/dev/null 2>/dev/null");
+	} else {
+		system("$mk defconfig Config.in >/dev/null 2>/dev/null");
+	}
+}
+
+sub install {
+	my $name;
+	my %opts;
+	my $feed;
+	my $ret = 0;
+
+	getopts('ap:d:fh', \%opts);
+
+	if ($opts{h}) {
+		usage();
+		return 0;
+	}
+
+	get_installed();
+
+	foreach my $f (@feeds) {
+		# fetch all feeds
+		get_feed($f->[1]);
+
+		# look up the preferred feed
+		$opts{p} and $f->[1] eq $opts{p} and $feed = $f;
+	}
+
+	if($opts{a}) {
+		foreach my $f (@feeds) {
+			if (!defined($opts{p}) or $opts{p} eq $f->[1]) {
+				printf "Installing all packages from feed %s.\n", $f->[1];
+				get_feed($f->[1]);
+				foreach my $name (sort { lc($a) cmp lc($b) } keys %$feed_package) {
+					my $p = $feed_package->{$name};
+					next if $p->{vdepends};
+					if( $p->{name} ) {
+						install_package($feed, $p->{name}, exists($opts{f})) == 0 or $ret = 1;
+						get_feed($f->[1]);
+					}
+				}
+			}
+		}
+	} else {
+		while ($name = shift @ARGV) {
+			install_package($feed, $name, exists($opts{f})) == 0 or $ret = 1;
+		}
+	}
+
+	# workaround for timestamp check
+
+	# set the defaults
+	if ($opts{d} and $opts{d} =~ /^[ymn]$/) {
+		refresh_config($opts{d});
+	}
+
+	return $ret;
+}
+
+sub uninstall_target($) {
+	my $dir = shift;
+	my $name = $dir;
+	$name =~ s/.*\///g;
+
+	my $dest = readlink $dir;
+	return unless $dest =~ /..\/..\/feeds/;
+	warn "Uninstalling target '$name'\n";
+	unlink "$dir";
+}
+
+sub uninstall {
+	my %opts;
+	my $name;
+	my $uninstall;
+
+	getopts('ah', \%opts);
+
+	if ($opts{h}) {
+		usage();
+		return 0;
+	}
+
+	if ($opts{a}) {
+		system("rm -rvf ./package/feeds");
+		foreach my $dir (glob "target/linux/*") {
+			next unless -l $dir;
+			uninstall_target($dir);
+		}
+		$uninstall = 1;
+	} else {
+		if($#ARGV == -1) {
+			warn "WARNING: no package to uninstall\n";
+			return 0;
+		}
+		get_installed();
+		while ($name = shift @ARGV) {
+			my $target = "target/linux/$name";
+			-l "$target" and do {
+				uninstall_target($target);
+				$uninstall = 1;
+				next;
+			};
+
+			my $pkg = $installed{$name};
+			$pkg or do {
+				warn "WARNING: $name not installed\n";
+				next;
+			};
+			$pkg->{src} and $name = $pkg->{src};
+			warn "Uninstalling package '$name'\n";
+			system("rm -f ./package/feeds/*/$name");
+			$uninstall = 1;
+		}
+	}
+	$uninstall and refresh_config();
+	return 0;
+}
+
+sub update_feed($$$$)
+{
+	my $type=shift;
+	my $name=shift;
+	my $src=shift;
+	my $perform_update=shift;
+	my $force_relocate=update_location( $name, "@$src" );
+
+	if( $force_relocate ) {
+		warn "Source of feed $name has changed, replacing copy\n";
+	}
+	$update_method{$type} or do {
+		warn "Unknown type '$type' in feed $name\n";
+		return 1;
+	};
+	$perform_update and do {
+		my $failed = 1;
+		foreach my $feedsrc (@$src) {
+			warn "Updating feed '$name' from '$feedsrc' ...\n";
+			next unless update_feed_via($type, $name, $feedsrc, $force_relocate) == 0;
+			$failed = 0;
+			last;
+		}
+		$failed and do {
+			warn "failed.\n";
+			return 1;
+		};
+	};
+	warn "Create index file './feeds/$name.index' \n";
+	update_index($name) == 0 or do {
+		warn "failed.\n";
+		return 1;
+	};
+	return 0;
+}
+
+sub update {
+	my %opts;
+	my $feed_name;
+	my $perform_update=1;
+	my $failed=0;
+
+	$ENV{SCAN_COOKIE} = $$;
+	$ENV{OPENWRT_VERBOSE} = 's';
+
+	getopts('ahi', \%opts);
+
+	if ($opts{h}) {
+		usage();
+		return 0;
+	}
+
+	if ($opts{i}) {
+		# don't update from (remote) repository
+		# only re-create index information
+		$perform_update=0;
+	}
+
+	-d "feeds" or do {
+			mkdir "feeds" or die "Unable to create the feeds directory";
+		};
+
+	if ( ($#ARGV == -1) or $opts{a}) {
+		foreach my $feed (@feeds) {
+			my ($type, $name, $src) = @$feed;
+			update_feed($type, $name, $src, $perform_update) == 0 or $failed=1;
+		}
+	} else {
+		while ($feed_name = shift @ARGV) {
+			foreach my $feed (@feeds) {
+				my ($type, $name, $src) = @$feed;
+				if($feed_name ne $name) {
+					next;
+				}
+				update_feed($type, $name, $src, $perform_update) == 0 or $failed=1;
+			}
+		}
+	}
+
+	refresh_config();
+
+	return $failed;
+}
+
+sub feed_config() {
+	foreach my $feed (@feeds) {
+		my $installed = (-f "feeds/$feed->[1].index");
+
+		printf "\tconfig FEED_%s\n", $feed->[1];
+		printf "\t\tbool \"Enable feed %s\"\n", $feed->[1];
+		printf "\t\tdepends on PER_FEED_REPO\n";
+		printf "\t\tdefault y\n" if $installed;
+		printf "\t\thelp\n";
+		printf "\t\t Enable the \\\"%s\\\" feed at %s.\n", $feed->[1], $feed->[2][0];
+		printf "\n";
+	}
+
+	return 0;
+}
+
+sub usage() {
+	print <<EOF;
+Usage: $0 <command> [options]
+
+Commands:
+	list [options]: List feeds, their content and revisions (if installed)
+	Options:
+	    -n :            List of feed names.
+	    -s :            List of feed names and their URL.
+	    -r <feedname>:  List packages of specified feed.
+	    -d <delimiter>: Use specified delimiter to distinguish rows (default: spaces)
+	    -f :            List feeds in feeds.conf compatible format (when using -s).
+
+	install [options] <package>: Install a package
+	Options:
+	    -a :           Install all packages from all feeds or from the specified feed using the -p option.
+	    -p <feedname>: Prefer this feed when installing packages.
+	    -d <y|m|n>:    Set default for newly installed packages.
+	    -f :           Install will be forced even if the package exists in core OpenWrt (override)
+
+	search [options] <substring>: Search for a package
+	Options:
+	    -r <feedname>: Only search in this feed
+
+	uninstall -a|<package>: Uninstall a package
+	Options:
+	    -a :           Uninstalls all packages.
+
+	update -a|<feedname(s)>: Update packages and lists of feeds in feeds.conf .
+	Options:
+	    -a :           Update all feeds listed within feeds.conf. Otherwise the specified feeds will be updated.
+	    -i :           Recreate the index only. No feed update from repository is performed.
+
+	clean:             Remove downloaded/generated files.
+
+EOF
+	exit(1);
+}
+
+my %commands = (
+	'list' => \&list,
+	'update' => \&update,
+	'install' => \&install,
+	'search' => \&search,
+	'uninstall' => \&uninstall,
+	'feed_config' => \&feed_config,
+	'clean' => sub {
+		system("rm -rf ./feeds ./package/feeds");
+	}
+);
+
+my $arg = shift @ARGV;
+$arg or usage();
+parse_config;
+foreach my $cmd (keys %commands) {
+	$arg eq $cmd and do {
+		exit(&{$commands{$cmd}}());
+	};
+}
+usage();
diff --git a/scripts/flashing/adam2flash-502T.pl b/scripts/flashing/adam2flash-502T.pl
new file mode 100755
index 0000000..0c4c9d7
--- /dev/null
+++ b/scripts/flashing/adam2flash-502T.pl
@@ -0,0 +1,342 @@
+#!/usr/bin/env perl
+#
+#   D-Link DSL-502T flash utility
+#
+#   Copyright (c) 2007 Oliver Jowett <oliver@opencloud.com>
+#
+#   Based on adam2flash.pl for the D-Link DSL-G6x4T, which is:
+#   Copyright (C) 2005 Felix Fietkau <mailto@nbd.name>
+#   based on fbox recovery util by Enrik Berkhan
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+# The default DSL-502T mtd map looks like this:
+#
+# mtd0 0x90091000,0x903f0000    # filesystem
+# mtd1 0x90010090,0x90091000    # kernel
+# mtd2 0x90000000,0x90010000    # bootloader - DO NOT MODIFY
+# mtd3 0x903f0000,0x90400000    # config space - DO NOT MODIFY
+# mtd4 0x90010000,0x903f0000    # firmware signature + kernel + filesystem, used to flash new firmware
+#
+# i.e. the flash layout is:
+#
+# 90000000-9000FFFF mtd2 bootloader
+# 90010000-9001008F ---- firmware signature )
+# 90010090-90090FFF mtd1 kernel             ) mtd4 spans these three regions
+# 90091000-903EFFFF mtd0 filesystem         )
+# 903F0000-903FFFFF mtd3 config space
+#
+# The ADAM2 bootloader uses the mtd1 settings to find the start of the image to boot.
+# The image to load contains information about the loadable size of the image. If ADAM2 sees
+# that the image appears to extend beyond the end of mtd1, it will refuse to load it. On
+# the DSL-502T, this manifests as the USB light blinking rapidly on boot.
+#
+# The OpenWRT kernel does not follow quite the same layout:
+#  (a) it does not have a 0x90-byte firmware signature prefix
+#  (b) it is larger than the default mtd1 size
+#
+# (a) would be avoidable (build a custom image with a 0x90-byte prefix) but (b) is unavoidable.
+# So we *have* to change mtd1. The simplest thing to do seems to make it span all of
+# the flashable area, producing this layout:
+#
+# mtd0 0x90091000,0x903f0000    # filesystem
+# mtd1 0x90010000,0x903f0000    # kernel (CHANGED)
+# mtd2 0x90000000,0x90010000    # bootloader - DO NOT MODIFY
+# mtd3 0x903f0000,0x90400000    # config space - DO NOT MODIFY
+# mtd4 0x90010000,0x903f0000    # kernel + filesystem, used to flash new firmware
+#
+# *** NOTE NOTE NOTE NOTE ***
+#
+# /dev/mtd0 .. /dev/mtd4 when using OpenWRT do **NOT** correspond to the ADAM2 mtd0-4 settings!
+# Instead, OpenWRT scans the MTD itself and determines its own boundaries which are arranged
+# quite differently to ADAM2. It will look something like this, see dmsg on boot:
+#
+# (/dev/mtd0) 0x00000000-0x00010000 : "loader"        # Bootloader, read-only
+# (/dev/mtd1) 0x003f0000-0x00400000 : "config"        # Config space
+# (/dev/mtd2) 0x00010000-0x003f0000 : "linux"         # Firmware area (kernel + root fs + JFFS area)
+# (/dev/mtd3) 0x000d0d58-0x003f0000 : "rootfs"        # Root FS, starts immediately after kernel
+# (/dev/mtd4) 0x00280000-0x003f0000 : "rootfs_data"   # If rootfs is squashfs, start of JFFS area.
+#
+# All of those boundaries are autodetected by examining the data in flash.
+#
+# *** NOTE NOTE NOTE NOTE ***
+
+use IO::Socket::INET;
+use Socket;
+use strict;
+use warnings;
+
+sub usage() {
+	print STDERR "Usage: $0 <ip> [-setmtd1] [-noflash] [firmware.bin]\n\n";
+	print STDERR "Acquires the ADAM2 bootloader of a D-Link DSL-504T at <ip>\n";
+	print STDERR "Power off the device, start this script, then power it on.\n";
+	print STDERR "<ip> may be any spare address on the local subnet.\n\n";
+	print STDERR "If a firmware file is specified, MTD settings are verified and\n";
+	print STDERR "then the firmware is written to the router's flash.\n";
+	print STDERR "The firmware type (D-Link or OpenWRT) is automatically detected.\n\n";
+	print STDERR "  -setmtd1  update mtd1 if it is not the appropriate value for this firmware\n";
+	print STDERR "  -noflash  does normal checks, updates mtd1 if requested, but does not actually write firmware\n\n";
+	exit 0;
+}
+
+my $ip = shift @ARGV;
+$ip and $ip =~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/ or usage();
+
+my $probe = IO::Socket::INET->new(Proto => 'udp',
+                                  Broadcast => 1,
+                                  LocalPort => 5035) or die "socket: $!";
+my $setip = unpack("N", inet_aton($ip));
+$setip > 0 or usage();
+
+my @packets;
+foreach my $ver ([18, 1], [22, 2]) {
+	push @packets, pack("vCCVNV", 0, @$ver, 1, $setip, 0);
+}
+print STDERR "Looking for device: ";
+my $broadcast = sockaddr_in(5035, INADDR_BROADCAST);
+my $scanning;
+my $box;
+
+$SIG{"ALRM"} = sub {
+	return if --$scanning <= 0;
+	foreach my $packet (@packets) {
+		$probe->send($packet, 0, $broadcast);
+	}
+	print STDERR ".";
+};
+
+$scanning = 15;
+foreach my $packet (@packets) {
+	$probe->send($packet, 0, $broadcast);
+}
+print STDERR ".";
+
+while($scanning) {
+	my $reply;
+
+	alarm(1);
+	if (my $peer = $probe->recv($reply, 16)) {
+		next if (length($reply) < 16);
+		my ($port, $addr) = sockaddr_in($peer);
+		my ($major, $minor1, $minor2, $code, $addr2) = unpack("vCCVV", $reply);
+		$addr2 = pack("N", $addr2);
+		if ($code == 2) {
+			$scanning = 0;
+			printf STDERR " found!\nADAM2 version $major.$minor1.$minor2 at %s (%s)\n", inet_ntoa($addr), inet_ntoa($addr2);
+			$box = inet_ntoa($addr);
+		}
+	}
+}
+
+$box or die " not found!\n";
+
+alarm(0);
+
+{
+	package ADAM2FTP;
+	use base qw(Net::FTP);
+	
+	# ADAM2 requires upper case commands, some brain dead firewall doesn't ;-)
+	sub _USER {
+		shift->command("USER",@_)->response()
+	}
+	
+	sub _GETENV {
+		my $ftp = shift;
+		my ($ok, $name, $value);
+		
+		$ftp->command("GETENV",@_);
+			while(length($ok = $ftp->response()) < 1) {
+			my $line = $ftp->getline();
+			unless (defined($value)) {
+				chomp($line);
+				($name, $value) = split(/\s+/, $line, 2);
+			}
+		}
+		$ftp->debug_print(0, "getenv: $value\n")
+		if $ftp->debug();
+		return $value;
+	}
+	
+	sub getenv {
+		my $ftp = shift;
+		my $name = shift;
+		return $ftp->_GETENV($name);
+	}
+	
+	sub _REBOOT {
+		shift->command("REBOOT")->response() == Net::FTP::CMD_OK
+	}
+	
+	sub reboot {
+		my $ftp = shift;
+		$ftp->_REBOOT;
+		$ftp->close;
+	}
+}
+
+my $file;
+my $arg;
+my $noflash = 0;
+my $setmtd1 = 0;
+while ($arg = shift @ARGV) {
+  if ($arg eq "-noflash") { $noflash = 1; }
+  elsif ($arg eq "-setmtd1") { $setmtd1 = 1; }
+  else { $file = $arg; }
+}
+
+if (!$file) {
+  print STDERR "No firmware file specified, exiting.\n";
+  exit 0;
+}
+
+#
+# Firmware checks
+#
+
+open FILE, "<$file" or die "can't open firmware file\n";
+
+# D-Link firmware starts with "MTD4" little-endian, then has an image header at 0x90
+# OpenWRT firmware just starts with an image header at 0x00
+
+my $signature;
+my $sbytes = read FILE, $signature, 4;
+($sbytes == 4) or die "can't read firmware signature: $!";
+
+my $expectedmtd4 = "0x90010000,0x903f0000";
+my $fwtype;
+my $expectedmtd1;
+
+if ($signature eq "4DTM") {
+  seek FILE, 0x90, 0 or die "can't read firmware signature: $!";
+  $sbytes = read FILE, $signature, 4;
+  ($sbytes == 4) or die "can't read firmware signature: $!";
+  if ($signature eq "\x42\xfa\xed\xfe") {
+    $fwtype = "D-Link (little-endian)";
+    $expectedmtd1 = "0x90010090,0x90091000";
+  } elsif ($signature eq "\xde\xad\xbe\x42") {
+    $fwtype = "D-Link (big-endian)";
+    $expectedmtd1 = "0x90010090,0x90091000";
+  }
+} elsif ($signature eq "\x42\xfa\xed\xfe") {
+  $fwtype = "OpenWRT (little-endian)";
+  $expectedmtd1 = "0x90010000,0x903f0000";
+} elsif ($signature eq "\xde\xad\xbe\x42") {
+  $fwtype = "OpenWRT (big-endian)";
+  $expectedmtd1 = "0x90010000,0x903f0000";
+}
+
+$fwtype or die "Unknown firmware signature (are you sure that's the right firmware?)";
+print STDERR "Firmware type: $fwtype\n";
+
+#
+# Bootloader login
+#
+
+print STDERR "logging into ADAM2 bootloader.. ";
+my $ftp = ADAM2FTP->new($box, Debug => 0, Timeout => 600) or die "can't open control connection\n";
+$ftp->login("adam2", "adam2") or die "can't login\n";
+print STDERR "ok.\n";
+
+#
+# Hardware checks
+#
+
+print STDERR "checking hardware.. ";
+my $prd = $ftp->getenv("ProductID");
+my $usb = $ftp->getenv("usb_prod");
+print STDERR "$prd / $usb.\n";
+($prd eq "AR7RD" || $prd eq "AR7DB") or die "doesn't look like a DSL-502T?";
+($usb eq "DSL-502T") or die "doesn't look like a DSL-502T?";
+
+#
+# MTD checks and update
+#
+
+print STDERR "checking MTD settings.. ";
+
+my $mtd4 = $ftp->getenv("mtd4");
+($mtd4 eq $expectedmtd4) or die "MTD4 was not as expected (should be '$expectedmtd4', was '$mtd4'). Cowardly refusing to do anything about it!";
+
+# check MTD1 setting and update if needed
+my $mtd1 = $ftp->getenv("mtd1");
+if ($mtd1 ne $expectedmtd1) {
+  die "MTD1 was not as expected (should be '$expectedmtd1', was '$mtd1'). Run with -setmtd1 to reset mtd1" unless ($setmtd1);
+  print STDERR "Setting mtd1.. ";
+  ($ftp->command("SETENV","mtd1,$expectedmtd1")->response() == Net::FTP::CMD_OK) or die "can't set mtd1";
+  $file = shift @ARGV;
+}
+
+print STDERR "ok.\n";
+
+#
+# Firmware size check
+#
+
+my $fwsize = (stat(FILE))[7];
+printf STDERR "Firmware size: 0x%08x\n", $fwsize;
+my $flashsize;
+$mtd4 =~ /^(0x\w+),(0x\w+)$/ and $flashsize = hex($2) - hex($1);
+printf STDERR "Available flash space: 0x%08x\n", $flashsize;
+die "firmware is too large" if ($flashsize < $fwsize);
+
+#
+# Flash it!
+#
+
+if ($noflash) {
+  print STDERR "Not flashing firmware as -noflash was specified.\n";
+  exit 0;
+}
+
+seek FILE, 0, 0, or die "can't seek in firmware: $!";
+
+print STDERR "Preparing to flash.. ";
+($ftp->command("MEDIA FLSH")->response() == Net::FTP::CMD_OK) or die "can't set MEDIA FLSH";
+$ftp->binary() or die "can't set binary mode";
+print STDERR "ok.\n";
+print STDERR "Erasing flash and establishing data connection (this may take a while): ";
+
+my $dc = $ftp->stor("fs mtd4");
+$dc or die "can't open data connection: $!\n";
+print STDERR "ok.\n";
+
+print STDERR "Writing firmware: ";
+while ($fwsize > 0) {
+	my $buffer;
+	my $len = ($fwsize > 1024 ? 1024 : $fwsize);
+
+	my $rbytes = read FILE, $buffer, $len;
+	($rbytes < 0) and die "read error on firmware file: $!";
+	($rbytes == $len) or die "short read on firmware file ($rbytes < $len)";
+
+	my $wbytes = $dc->write($buffer, $len, 600);
+	($wbytes < 0) and die "write error on FTP data connection: $!";
+	($rbytes == $wbytes) or die "short write on FTP data connection ($wbytes < $rbytes)";
+
+	$fwsize -= $len;
+	print STDERR ".";
+}
+
+$dc->close();
+print STDERR " done.\n";
+
+#
+# Reboot
+#
+
+print STDERR "Rebooting device.\n";
+$ftp->reboot();
diff --git a/scripts/flashing/adam2flash-fritzbox.pl b/scripts/flashing/adam2flash-fritzbox.pl
new file mode 100755
index 0000000..f8d745f
--- /dev/null
+++ b/scripts/flashing/adam2flash-fritzbox.pl
@@ -0,0 +1,209 @@
+#!/usr/bin/env perl
+#
+#   D-Link DSL-G6x4T flash utility
+#
+#   Copyright (C) 2005 Felix Fietkau <mailto@nbd.name>
+#   based on fbox recovery util by Enrik Berkhan
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+use IO::Socket::INET;
+use IO::Select;
+use Socket;
+use strict;
+use warnings;
+
+sub usage() {
+	print STDERR "Usage: $0 <ip> [firmware.bin]\n\n";
+	exit 0;
+}
+
+my $ip = shift @ARGV;
+$ip and $ip =~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/ or usage();
+
+my $setip = unpack("N", inet_aton($ip));
+$setip > 0 or usage();
+
+my @packets;
+foreach my $ver ([18, 1], [22, 2]) {
+	push @packets, pack("vCCVNV", 0, @$ver, 1, $setip, 0);
+}
+print STDERR "Looking for device: ";
+my $scanning;
+my $box;
+
+my $probe = IO::Socket::INET->new(Proto => 'udp',
+                                  Broadcast => 1,
+                                  LocalAddr => $ip,
+                                  LocalPort => 5035) or die "socket: $!";
+my $sel = IO::Select->new($probe);
+my $packet = pack("vCCVNV", 0, 18, 1, 1, 0, 0);
+my $broadcast = sockaddr_in(5035, INADDR_BROADCAST);
+
+$probe->send($packet, 0, $broadcast);
+
+
+scan_again:
+print "Looking for Fritz!Box ";
+my @boxes = ();
+my $peer;
+$scanning = 100;
+print "o";
+while($scanning) {
+  my $reply;
+  my @ready;
+
+  if (@ready = $sel->can_read(0.2)) {
+    $peer = $probe->recv($reply, 16);
+    next if (length($reply) < 16);
+    my ($port, $addr) = sockaddr_in($peer);
+    my ($major, $minor1, $minor2, $code, $addr2) = unpack("vCCVV", $reply);
+    $addr2 = pack("N", $addr2);
+    if ($code == 2) {
+      print "O";
+      push @boxes, [$major, $minor1, $minor2, $addr, $addr2];
+      $scanning = 2 if ($scanning > 2);
+    }
+  } else {
+    $scanning--;
+    if (scalar @boxes == 0) {
+      $probe->send($packet, 0, $broadcast);
+      print "o";
+    } else {
+      print ".";
+    }
+  }
+}
+
+if (scalar @boxes == 0) {
+  print " none found, giving up.\n";
+  exit 1;
+} else {
+  print " found!\n";
+}
+
+{
+  package ADAM2FTP;
+  use base qw(Net::FTP);
+  # ADAM2 requires upper case commands, some brain dead firewall doesn't ;-)
+  sub _USER { shift->command("USER",@_)->response() }
+  sub _PASV { shift->command("P\@SW")->response() == Net::FTP::CMD_OK }
+  sub _GETENV {
+    my $ftp = shift;
+    my ($ok, $name, $value);
+
+    $ftp->command("GETENV",@_);
+    while(length($ok = $ftp->response()) < 1) {
+      my $line = $ftp->getline();
+      unless (defined($value)) {
+        chomp($line);
+        ($name, $value) = split(/\s+/, $line, 2);
+      }
+    }
+    $ftp->debug_print(0, "getenv: $value\n")
+      if $ftp->debug();
+    return $value;
+  }
+  sub getenv {
+    my $ftp = shift;
+    my $name = shift;
+    return $ftp->_GETENV($name);
+  }
+  sub _REBOOT { shift->command("REBOOT")->response() == Net::FTP::CMD_OK }
+  sub reboot {
+    my $ftp = shift;
+    $ftp->_REBOOT;
+    $ftp->close;
+  }
+  sub check {
+    my $ftp = shift;
+    
+    delete ${*$ftp}{'net_ftp_port'};
+    delete ${*$ftp}{'net_ftp_pasv'};
+
+    my $data = $ftp->_data_cmd('CHECK' ,@_) or return undef;
+    my $sum;
+    if (${${*$ftp}{'net_cmd_resp'}}[0] =~ /^Flash check 0x([0-9A-F]{8})/) {
+      $sum = hex($1);
+    }
+    $data->_close();
+    return $sum;
+  }
+}
+
+# passive mode geht mit Net::FTP nicht, connected zu spaet fuer ADAM2!
+my $ftp = ADAM2FTP->new($ip, Passive => 0, Debug => 0, Timeout => 600)
+  or die "can't FTP ADAM2";
+$ftp->login("adam2", "adam2") or die "can't login adam2";
+$ftp->binary();
+my $pid   = $ftp->getenv('ProductID');
+my $hwrev = $ftp->getenv('HWRevision');
+my $fwrev = $ftp->getenv('firmware_info');
+my $ulrev = $ftp->getenv('urlader-version');
+
+print "Product ID: $pid\n";
+print "Hardware Revision: $hwrev\n";
+print "Urlader  Revision: $ulrev\n";
+print "Firmware Revision: $fwrev\n";
+
+$ftp->hash(\*STDOUT, 64 * 1024);
+
+my $file = shift @ARGV;
+$file || exit 0;
+
+open FILE, "<$file" or die "can't open firmware file\n";
+
+my $mtd0 = $ftp->getenv("mtd0");
+my $mtd1 = $ftp->getenv("mtd1");
+my ($ksize, $fssize);
+
+$mtd1 =~ /^(0x\w+),(0x\w+)$/ and $ksize = hex($2) - hex($1);
+$mtd0 =~ /^(0x\w+),(0x\w+)$/ and $fssize = hex($2) - hex($1);
+$ksize and $fssize or die 'cannot read partition offsets';
+printf STDERR "Available flash space: 0x%08x (0x%08x + 0x%08x)\n", $ksize + $fssize, $ksize, $fssize;
+
+$ftp->command("MEDIA FLSH")->response();
+$ftp->binary();
+print STDERR "Writing to mtd1...\n";
+
+my $dc = $ftp->stor("fs mtd1");
+$dc or die "can't open data connection\n";
+my $rbytes = 1;
+
+while (($ksize > 0) and ($rbytes > 0)) {
+	my $buffer;
+	my $len = ($ksize > 1024 ? 1024 : $ksize);
+	$rbytes = read FILE, $buffer, $len;
+	$rbytes and $ksize -= $dc->write($buffer, $rbytes, 600);
+}
+
+$dc->close();
+$rbytes or die "no more data left to write\n";
+
+print STDERR "Writing to mtd0...\n";
+
+$dc = $ftp->stor("fs mtd0");
+$dc or die "can't open data connection\n";
+
+while (($fssize > 0) and ($rbytes > 0)) {
+	my $buffer;
+	my $len = ($fssize > 1024 ? 1024 : $fssize);
+	$rbytes = read FILE, $buffer, $len;
+	$rbytes and $fssize -= $dc->write($buffer, $rbytes, 600);
+}
+
+$dc->close();
+$ftp->reboot();
diff --git a/scripts/flashing/adam2flash.pl b/scripts/flashing/adam2flash.pl
new file mode 100755
index 0000000..8550f80
--- /dev/null
+++ b/scripts/flashing/adam2flash.pl
@@ -0,0 +1,174 @@
+#!/usr/bin/env perl
+#
+#   D-Link DSL-G6x4T flash utility
+#
+#   Copyright (C) 2005 Felix Fietkau <mailto@nbd.name>
+#   based on fbox recovery util by Enrik Berkhan
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+use IO::Socket::INET;
+use Socket;
+use strict;
+use warnings;
+
+sub usage() {
+	print STDERR "Usage: $0 <ip> [firmware.bin]\n\n";
+	exit 0;
+}
+
+my $ip = shift @ARGV;
+$ip and $ip =~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/ or usage();
+
+my $probe = IO::Socket::INET->new(Proto => 'udp',
+                                  Broadcast => 1,
+                                  LocalPort => 5035) or die "socket: $!";
+my $setip = unpack("N", inet_aton($ip));
+$setip > 0 or usage();
+
+my @packets;
+foreach my $ver ([18, 1], [22, 2]) {
+	push @packets, pack("vCCVNV", 0, @$ver, 1, $setip, 0);
+}
+print STDERR "Looking for device: ";
+my $broadcast = sockaddr_in(5035, INADDR_BROADCAST);
+my $scanning;
+my $box;
+
+$SIG{"ALRM"} = sub {
+	return if --$scanning <= 0;
+	foreach my $packet (@packets) {
+		$probe->send($packet, 0, $broadcast);
+	}
+	print STDERR ".";
+};
+
+$scanning = 10;
+foreach my $packet (@packets) {
+	$probe->send($packet, 0, $broadcast);
+}
+print STDERR ".";
+
+while($scanning) {
+	my $reply;
+
+	alarm(1);
+	if (my $peer = $probe->recv($reply, 16)) {
+		next if (length($reply) < 16);
+		my ($port, $addr) = sockaddr_in($peer);
+		my ($major, $minor1, $minor2, $code, $addr2) = unpack("vCCVV", $reply);
+		$addr2 = pack("N", $addr2);
+		if ($code == 2) {
+			$scanning = 0;
+			printf STDERR " found!\nADAM2 version $major.$minor1.$minor2 at %s (%s)\n", inet_ntoa($addr), inet_ntoa($addr2);
+			$box = inet_ntoa($addr);
+		}
+	}
+}
+
+$box or die " not found!\n";
+
+{
+	package ADAM2FTP;
+	use base qw(Net::FTP);
+	
+	# ADAM2 requires upper case commands, some brain dead firewall doesn't ;-)
+	sub _USER {
+		shift->command("USER",@_)->response()
+	}
+	
+	sub _GETENV {
+		my $ftp = shift;
+		my ($ok, $name, $value);
+		
+		$ftp->command("GETENV",@_);
+			while(length($ok = $ftp->response()) < 1) {
+			my $line = $ftp->getline();
+			unless (defined($value)) {
+				chomp($line);
+				($name, $value) = split(/\s+/, $line, 2);
+			}
+		}
+		$ftp->debug_print(0, "getenv: $value\n")
+		if $ftp->debug();
+		return $value;
+	}
+	
+	sub getenv {
+		my $ftp = shift;
+		my $name = shift;
+		return $ftp->_GETENV($name);
+	}
+	
+	sub _REBOOT {
+		shift->command("REBOOT")->response() == Net::FTP::CMD_OK
+	}
+	
+	sub reboot {
+		my $ftp = shift;
+		$ftp->_REBOOT;
+		$ftp->close;
+	}
+}
+
+my $file = shift @ARGV;
+$file || exit 0;
+
+open FILE, "<$file" or die "can't open firmware file\n";
+my $ftp = ADAM2FTP->new($box, Debug => 0, Timeout => 600) or die "can't open control connection\n";
+$ftp->login("adam2", "adam2") or die "can't login\n";
+
+my $mtd0 = $ftp->getenv("mtd0");
+my $mtd1 = $ftp->getenv("mtd1");
+my ($ksize, $fssize);
+
+$mtd1 =~ /^(0x\w+),(0x\w+)$/ and $ksize = hex($2) - hex($1);
+$mtd0 =~ /^(0x\w+),(0x\w+)$/ and $fssize = hex($2) - hex($1);
+$ksize and $fssize or die 'cannot read partition offsets';
+printf STDERR "Available flash space: 0x%08x (0x%08x + 0x%08x)\n", $ksize + $fssize, $ksize, $fssize;
+
+$ftp->command("MEDIA FLSH")->response();
+$ftp->binary();
+print STDERR "Writing to mtd1...\n";
+
+my $dc = $ftp->stor("fs mtd1");
+$dc or die "can't open data connection\n";
+my $rbytes = 1;
+
+while (($ksize > 0) and ($rbytes > 0)) {
+	my $buffer;
+	my $len = ($ksize > 1024 ? 1024 : $ksize);
+	$rbytes = read FILE, $buffer, $len;
+	$rbytes and $ksize -= $dc->write($buffer, $rbytes, 600);
+}
+
+$dc->close();
+$rbytes or die "no more data left to write\n";
+
+print STDERR "Writing to mtd0...\n";
+
+$dc = $ftp->stor("fs mtd0");
+$dc or die "can't open data connection\n";
+
+while (($fssize > 0) and ($rbytes > 0)) {
+	my $buffer;
+	my $len = ($fssize > 1024 ? 1024 : $fssize);
+	$rbytes = read FILE, $buffer, $len;
+	$rbytes and $fssize -= $dc->write($buffer, $rbytes, 600);
+}
+
+$dc->close();
+$ftp->reboot();
diff --git a/scripts/flashing/adsl2mue_flash.pl b/scripts/flashing/adsl2mue_flash.pl
new file mode 100755
index 0000000..c206c47
--- /dev/null
+++ b/scripts/flashing/adsl2mue_flash.pl
@@ -0,0 +1,170 @@
+#!/usr/bin/perl
+#
+#   Linksys ADSL2MUE Flash utility.
+#
+#   Copyright (C) 2008 Alexandre Lissy <alexandrelissy@free.fr>
+#   based on D-Link DSL-G6x4T flash utility by Felix Fietkau <mailto@nbd.name>
+#   based on fbox recovery util by Enrik Berkhan
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+use IO::Socket::INET;
+use Socket;
+use strict;
+use warnings;
+
+sub usage() {
+	print STDERR "Usage: $0 <ip> [firmware.bin] [partition]\n\n";
+	exit 0;
+}
+
+my $ip = shift @ARGV;
+$ip and $ip =~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/ or usage();
+
+my $probe = IO::Socket::INET->new(Proto => 'udp',
+                                  Broadcast => 1,
+                                  LocalPort => 5035) or die "socket: $!";
+my $setip = unpack("N", inet_aton($ip));
+$setip > 0 or usage();
+
+my @packets;
+foreach my $ver ([18, 1], [22, 2]) {
+	push @packets, pack("vCCVNV", 0, @$ver, 1, $setip, 0);
+}
+print STDERR "Looking for device: ";
+my $broadcast = sockaddr_in(5035, INADDR_BROADCAST);
+my $scanning;
+my $box;
+
+$SIG{"ALRM"} = sub {
+	return if --$scanning <= 0;
+	foreach my $packet (@packets) {
+		$probe->send($packet, 0, $broadcast);
+	}
+	print STDERR ".";
+};
+
+$scanning = 10;
+foreach my $packet (@packets) {
+	$probe->send($packet, 0, $broadcast);
+}
+print STDERR ".";
+
+while($scanning) {
+	my $reply;
+
+	alarm(1);
+	if (my $peer = $probe->recv($reply, 16)) {
+		next if (length($reply) < 16);
+		my ($port, $addr) = sockaddr_in($peer);
+		my ($major, $minor1, $minor2, $code, $addr2) = unpack("vCCVN", $reply);
+		$addr2 = pack("N", $addr2);
+		if ($code == 1) {
+			$scanning = 0;
+			printf STDERR " found!\nADAM2 version $major.$minor1.$minor2 at %s (%s)\n", inet_ntoa($addr2), inet_ntoa($addr);
+			$box = inet_ntoa($addr2);
+		}
+	}
+}
+
+$box or die " not found!\n";
+
+{
+	package ADAM2FTP;
+	use base qw(Net::FTP);
+	
+	# ADAM2 requires upper case commands, some brain dead firewall doesn't ;-)
+	sub _USER {
+		shift->command("USER",@_)->response()
+	}
+	
+	sub _GETENV {
+		my $ftp = shift;
+		my ($ok, $name, $value);
+		
+		$ftp->command("GETENV",@_);
+			while(length($ok = $ftp->response()) < 1) {
+			my $line = $ftp->getline();
+			unless (defined($value)) {
+				chomp($line);
+				($name, $value) = split(/\s+/, $line, 2);
+			}
+		}
+		$ftp->debug_print(0, "getenv: $value\n")
+		if $ftp->debug();
+		return $value;
+	}
+	
+	sub getenv {
+		my $ftp = shift;
+		my $name = shift;
+		return $ftp->_GETENV($name);
+	}
+	
+	sub _REBOOT {
+		shift->command("REBOOT")->response() == Net::FTP::CMD_OK
+	}
+	
+	sub reboot {
+		my $ftp = shift;
+		$ftp->_REBOOT;
+		$ftp->close;
+	}
+}
+
+my $file = shift @ARGV;
+my $part = shift @ARGV;
+$file || exit 0;
+$part || exit 0;
+
+open FILE, "<$file" or die "can't open firmware file\n";
+my $ftp = ADAM2FTP->new($box, Debug => 0, Timeout => 600) or die "can't open control connection\n";
+$ftp->login("adam2", "adam2") or die "can't login\n";
+
+# my $mtd0 = $ftp->getenv("mtd0");
+# my $mtd1 = $ftp->getenv("mtd1");
+my $mtd4 = $ftp->getenv($part);
+# my ($ksize, $fssize);
+my ($ossize, $mtd_start, $mtd_end);
+
+# $mtd1 =~ /^(0x\w+),(0x\w+)$/ and $ksize = hex($2) - hex($1);
+# $mtd0 =~ /^(0x\w+),(0x\w+)$/ and $fssize = hex($2) - hex($1);
+$mtd4 =~ /^(0x\w+),(0x\w+)$/;
+$ossize = hex($2) - hex($1);
+$mtd_start = hex($1);
+$mtd_end = hex($2);
+$ossize and $mtd_start and $mtd_end or die 'cannot read partition offsets';
+printf STDERR "Available flash space: 0x%08x ($part: 0x%08x to 0x%08x)\n", $ossize, $mtd_start, $mtd_end;
+
+$ftp->command("MEDIA FLSH")->response();
+$ftp->binary();
+
+print STDERR "Writing to $part ...\n";
+my $dc = $ftp->stor("data $part");
+$dc or die "can't open data connection\n";
+my $rbytes = 1;
+
+while (($ossize > 0) and ($rbytes > 0)) {
+	my $buffer;
+	my $len = ($ossize > 1024 ? 1024 : $ossize);
+	$rbytes = read FILE, $buffer, $len;
+	printf STDERR ".";
+	$rbytes and $ossize -= $dc->write($buffer, $rbytes, 600);
+}
+
+printf STDERR "\nDone.\n";
+
+$dc->close();
diff --git a/scripts/flashing/flash.sh b/scripts/flashing/flash.sh
new file mode 100755
index 0000000..3499581
--- /dev/null
+++ b/scripts/flashing/flash.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+#
+# tftp flash script for wireless routers 
+#
+# Copyright (C) 2004 by Oleg I. Vdovikin <oleg@cs.msu.su>
+# Copyright (C) 2005 by Waldemar Brodkorb <wbx@openwrt.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+
+if [ -z "$1" ] || [ ! -f $1 ] || [ -z $2 ]; then
+    echo Usage: $0 firmware vendor
+cat << EOF
+IMPORTANT:
+Notes for Linksys / Asus WL500gx router: 
+   be sure you have set boot_wait to yes. Power on your router
+   after executing this script.
+ 
+Notes for Asus WL500g router:
+   be sure POWER led is flashing (If this is not the case
+   poweroff the device, push the reset button & power on
+   it again, then release button)
+
+1) connect your pc to the LAN port
+2) be sure your link is up and has an address in the
+   192.168.1.0/24 address range (and not the 192.168.1.1)
+
+Notes for Toshiba router:
+   boot_wait is enabled by default on these units.
+
+1) connect your pc to any of the four LAN ports
+2) be sure your link is up and has an address in the
+   192.168.10.1/24 address range (and not the 192.168.10.1)
+3) run this script (unit will only accept .trx images)
+4) Turn unit power on.
+
+EOF
+    exit 0
+fi
+if [ "$2" = "asus" ]; then
+echo Confirming IP address setting...
+echo -en "get ASUSSPACELINK\x01\x01\xa8\xc0 /dev/null\nquit\n" | tftp 192.168.1.1
+echo Flashing 192.168.1.1 using $1...
+echo -en "binary\nput $1 ASUSSPACELINK\nquit\n" | tftp 192.168.1.1
+echo Please wait until leds stops flashing. 
+elif [ "$2" = "linksys" ]; then
+echo Flashing 192.168.1.1 using $1...
+echo -en "rexmt 1\ntrace\nbinary\nput $1\nquit\n" | tftp 192.168.1.1
+echo Please wait until power led stops flashing. Do not poweroff! Then you can login via telnet 192.168.1.1.
+elif [ "$2" = "toshiba" ]; then
+echo Flashing 192.168.10.1 using $1...
+echo -en "rexmt 1\ntrace\nbinary\nput $1\nquit\n" | tftp 192.168.10.1
+echo Unit will automatically reboot within 5 minutes.  Do not power off.  Then you can login via telnet 192.168.10.1.
+fi
diff --git a/scripts/flashing/jungo-image.py b/scripts/flashing/jungo-image.py
new file mode 100755
index 0000000..9947e7c
--- /dev/null
+++ b/scripts/flashing/jungo-image.py
@@ -0,0 +1,283 @@
+#!/usr/bin/env python
+#
+# Copyright 2008, 2009 (C) Jose Vasconcellos <jvasco@verizon.net>
+#
+# A script that can communicate with jungo-based routers
+# (such as MI424-WR, USR8200 and WRV54G) to backup the installed
+# firmware and replace the boot loader.
+#
+# Tested with Python 2.5 on Linux and Windows
+#
+"""Usage: %s [options] <IP_address> [image.bin | url]
+Valid options:
+\t-h | --help: usage statement
+\t-d | --dump: create a flash dump
+\t-f | --file: use <filename> to store dump contents
+\t-u | --user: provide username (default admin)
+\t-p | --pass: provide password (default password1)
+\t     --port: set port for http (default 8080)
+\t-q | --quiet: don't display unnecessary information
+\t-r | --reboot: reboot target on successful transfer
+\t-V | --version: display version information
+
+If no image (or url) is given, a flash dump is created.
+A built-in http server is used when an image file is provided.
+"""
+
+import os
+import sys
+import getopt
+import getpass
+import telnetlib
+import string
+import binascii
+import socket
+import thread
+import SocketServer
+import SimpleHTTPServer
+
+reboot = 0
+HOST = "192.168.1.1"
+PORT = 8080
+user = "admin"
+#password = getpass.getpass()
+password = "password1"
+proto = "http"
+url = ""
+imagefile = ""
+dumpfile = ""
+verbose = 1
+do_dump = 0
+dumplen = 0x10000
+flashsize=4*1024*1024
+#device="br0"
+device="ixp0"
+
+####################
+
+def start_server(server):
+    httpd = SocketServer.TCPServer((server,PORT),SimpleHTTPServer.SimpleHTTPRequestHandler)
+    thread.start_new_thread(httpd.serve_forever,())
+
+####################
+
+def get_flash_size():
+    # make sure we don't have an A0 stepping
+    tn.write("cat /proc/cpuinfo\n")
+    buf = tn.read_until("Returned 0", 3)
+    if not buf:
+        print "Unable to obtain CPU information; make sure to not use A0 stepping!"
+    elif buf.find('rev 0') > 0:
+        print "Warning: IXP42x stepping A0 detected!"
+        if imagefile or url:
+            print "Error: No linux support for A0 stepping!"
+            sys.exit(2)
+
+    # now get flash size
+    tn.write("cat /proc/mtd\n")
+    buf = tn.read_until("Returned 0", 3)
+    if buf:
+        i = buf.find('mtd0:')
+        if i > 0:
+            return int(buf[i+6:].split()[0],16)
+        # use different command
+        tn.write("flash_layout\n")
+        buf = tn.read_until("Returned 0", 3)
+        i = buf.rfind('Range ')
+        if i > 0:
+            return int(buf[i+17:].split()[0],16)
+        print "Can't determine flash size!"
+    else:
+        print "Unable to obtain flash size!"
+    sys.exit(2)
+
+def image_dump(tn, dumpfile):
+    if not dumpfile:
+        tn.write("ver\n");
+        buf = tn.read_until("Returned 0",2)
+        i = buf.find("Platform:")
+        if i < 0:
+	    platform="jungo"
+	else:
+	    line=buf[i+9:]
+	    i=line.find('\n')
+	    platform=line[:i].split()[-1]
+
+        tn.write("rg_conf_print /dev/%s/mac\n" % device);
+        buf = tn.read_until("Returned 0",3)
+
+	i = buf.find("mac(")
+	if i > 0:
+	    i += 4
+	else:
+	    print "No MAC address found! (use -f option)"
+	    sys.exit(1)
+        dumpfile = "%s-%s.bin" % (platform, buf[i:i+17].replace(':',''))
+    else:
+        tn.write("\n")
+
+    print "Dumping flash contents (%dMB) to %s" % (flashsize/1048576, dumpfile)
+    f = open(dumpfile, "wb")
+
+    t=flashsize/dumplen
+    for addr in range(t):
+	if verbose:
+	    sys.stdout.write('\r%d%%'%(100*addr/t))
+	    sys.stdout.flush()
+
+        tn.write("flash_dump -r 0x%x -l %d -4\n" % (addr*dumplen, dumplen))
+	tn.read_until("\n")
+
+	count = addr*dumplen
+        while 1:
+            buf = tn.read_until("\n")
+            if buf.strip() == "Returned 0":
+                break
+            s = buf.split()
+            if s and s[0][-1] == ':':
+		a=int(s[0][:-1],16)
+		if a != count:
+		    print "Format error: %x != %x"%(a,count)
+		    sys.exit(2)
+	    	count += 16
+		f.write(binascii.a2b_hex(string.join(s[1:],'')))
+	tn.read_until(">",1)
+
+    f.close()
+    if verbose:
+	print ""
+
+def telnet_option(sock,cmd,option):
+    #print "Option: %d %d" % (ord(cmd), ord(option))
+    if cmd == telnetlib.DO:
+        c=telnetlib.WILL
+    elif cmd == telnetlib.WILL:
+        c=telnetlib.DO
+    sock.sendall(telnetlib.IAC + c + option)
+
+def telnet_timeout():
+    print "Fatal error: telnet timeout!"
+    sys.exit(1)
+
+def usage():
+    print __doc__ % os.path.basename(sys.argv[0])
+
+####################
+
+try:
+    opts, args = getopt.getopt(sys.argv[1:], "hdf:qp:P:rvV", \
+	["help", "dump", "file=", "user=", "pass=", "port=",
+	 "quiet=", "reboot", "verbose", "version"])
+except getopt.GetoptError:
+    # print help information and exit:
+    usage()
+    sys.exit(1)
+
+for o, a in opts:
+    if o in ("-h", "--help"):
+	usage()
+	sys.exit(1)
+    elif o in ("-V", "--version"):
+	print "%s: 0.11" % sys.argv[0]
+	sys.exit(1)
+    elif o in ("-d", "--no-dump"):
+	do_dump = 1
+    elif o in ("-f", "--file"):
+	dumpfile = a
+    elif o in ("-u", "--user"):
+	user = a
+    elif o in ("-p", "--pass"):
+	password = a
+    elif o == "--port":
+	PORT = int(a)
+    elif o in ("-q", "--quiet"):
+	verbose = 0
+    elif o in ("-r", "--reboot"):
+	reboot = 1
+    elif o in ("-v", "--verbose"):
+	verbose = 1
+
+# make sure we have enough arguments
+if len(args) > 0:
+    HOST = args[0]
+
+if len(args) == 2:
+    if args[1].split(':')[0] in ("tftp", "http", "ftp"):
+        url = args[1]
+    else:
+        imagefile = args[1]
+else:
+    do_dump = 1;
+
+####################
+# create a telnet session to the router
+try:
+    tn = telnetlib.Telnet(HOST)
+except socket.error, msg:
+    print "Unable to establish telnet session to %s: %s" % (HOST, msg)
+    sys.exit(1)
+
+tn.set_option_negotiation_callback(telnet_option)
+
+buf = tn.read_until("Username: ", 3)
+if not buf:
+    telnet_timeout()
+tn.write(user+"\n")
+if password:
+    buf = tn.read_until("Password: ", 3)
+    if not buf:
+        telnet_timeout()
+    tn.write(password+"\n")
+
+# wait for prompt
+buf = tn.read_until("> ", 3)
+if not buf:
+    telnet_timeout()
+
+flashsize = get_flash_size()
+
+if do_dump:
+    image_dump(tn, dumpfile)
+
+if imagefile or url:
+    splitpath = os.path.split(imagefile)
+
+    # create load command
+    if url:
+        cmd = "load -u %s -r 0\n" % (url)
+    else:
+        server = tn.get_socket().getsockname()[0]
+        cmd = "load -u http://%s:%d/%s -r 0\n" % (server, PORT, splitpath[1])
+
+        if not os.access(imagefile, os.R_OK):
+            print "File access error: %s" % (imagefile)
+            sys.exit(3)
+
+        # make sure we're in the directory where the image is located
+        if splitpath[0]:
+            os.chdir(splitpath[0])
+
+        start_server(server)
+
+    if verbose:
+	print "Unlocking flash..."
+    tn.write("unlock 0 0x%x\n" % flashsize)
+    buf = tn.read_until("Returned 0",5)
+
+    if verbose:
+	print "Writing new image..."
+    print cmd,
+    tn.write(cmd)
+    buf = tn.read_until("Returned 0",10)
+
+    # wait till the transfer completed
+    buf = tn.read_until("Download completed successfully",20)
+    if buf:
+	print "Flash update complete!"
+        if reboot:
+            tn.write("reboot\n")
+            print "Rebooting..."
+
+tn.write("exit\n")
+tn.close()
+
diff --git a/scripts/freebsd.sh b/scripts/freebsd.sh
new file mode 100644
index 0000000..3107861
--- /dev/null
+++ b/scripts/freebsd.sh
@@ -0,0 +1 @@
+env PACKAGESITE=ftp://ftp.freebsd.org/pub/FreeBSD/ports/amd64/packages-9.0-release/All/ pkg_add -r gmake-3.82.tbz bash-4.1.11.tbz python27-2.7.2_3.tbz gtar-1.26.tbz findutils-4.5.10_2.tbz coreutils-8.12.tbz getopt-1.1.4_2.tbz wget-1.13.4_1.tbz gnugrep-2.9.tbz gawk-4.0.0.tbz
diff --git a/scripts/gen-dependencies.sh b/scripts/gen-dependencies.sh
new file mode 100755
index 0000000..c6b6f75
--- /dev/null
+++ b/scripts/gen-dependencies.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2012 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+SELF=${0##*/}
+
+READELF="${READELF:-readelf}"
+OBJCOPY="${OBJCOPY:-objcopy}"
+TARGETS=$*
+XARGS="${XARGS:-xargs -r}"
+
+[ -z "$TARGETS" ] && {
+  echo "$SELF: no directories / files specified"
+  echo "usage: $SELF [PATH...]"
+  exit 1
+}
+
+find $TARGETS -type f -a -exec file {} \; | \
+  sed -n -e 's/^\(.*\):.*ELF.*\(executable\|shared object\).*,.* stripped/\1/p' | \
+  $XARGS -n1 $READELF -d | \
+  awk '$2 ~ /NEEDED/ && $NF !~ /interpreter/ && $NF ~ /^\[?lib.*\.so/ { gsub(/[\[\]]/, "", $NF); print $NF }' | \
+  sort -u
+
+tmp=`mktemp $TMP_DIR/dep.XXXXXXXX`
+for kmod in `find $TARGETS -type f -name \*.ko`; do
+	$OBJCOPY -O binary -j .modinfo $kmod $tmp
+	sed -e 's,\x00,\n,g' $tmp | \
+		sed -ne '/^depends=.\+/ { s/^depends=//; s/,/.ko\n/g; s/$/.ko/p; q }'
+done | sort -u
+rm -f $tmp
diff --git a/scripts/getver.sh b/scripts/getver.sh
new file mode 100755
index 0000000..4643ca6
--- /dev/null
+++ b/scripts/getver.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+export LANG=C
+export LC_ALL=C
+[ -n "$TOPDIR" ] && cd $TOPDIR
+
+try_version() {
+	[ -f version ] || return 1
+	REV="$(cat version)"
+	[ -n "$REV" ]
+}
+
+try_svn() {
+	[ -d .svn ] || return 1
+	REV="$(svn info | awk '/^Last Changed Rev:/ { print $4 }')"
+	REV="${REV:+r$REV}"
+	[ -n "$REV" ]
+}
+
+try_git() {
+	[ -e .git ] || return 1
+	REV="$(git log | grep -m 1 git-svn-id | awk '{ gsub(/.*@/, "", $0); print $1 }')"
+	REV="${REV:+r$REV}"
+	[ -n "$REV" ]
+}
+
+try_hg() {
+	[ -d .hg ] || return 1
+	REV="$(hg log -r-1 --template '{desc}' | awk '{print $2}' | sed 's/\].*//')"
+	REV="${REV:+$REV}"
+	[ -n "$REV" ]
+}
+
+try_version || try_svn || try_git || try_hg || REV="unknown"
+echo "$REV"
diff --git a/scripts/ipkg-build b/scripts/ipkg-build
new file mode 100755
index 0000000..73cd87c
--- /dev/null
+++ b/scripts/ipkg-build
@@ -0,0 +1,160 @@
+#!/bin/sh
+
+# ipkg-build -- construct a .ipk from a directory
+# Carl Worth <cworth@east.isi.edu>
+# based on a script by Steve Redler IV, steve@sr-tech.com 5-21-2001
+# 2003-04-25 rea@sr.unh.edu
+#   Updated to work on Familiar Pre0.7rc1, with busybox tar.
+#   Note it Requires: binutils-ar (since the busybox ar can't create)
+#   For UID debugging it needs a better "find".
+set -e
+
+version=1.0
+FIND="$(which find)"
+FIND="${FIND:-$(which gfind)}"
+TAR="${TAR:-$(which tar)}"
+SVN="$(which svn)"
+GIT="$(which git)"
+export GZIP="-n"
+
+# look up date of last commit
+if [ -d "$TOPDIR/.git" ]; then
+	TIMESTAMP=$(cd $TOPDIR; $GIT log -1 -s --format=%ci)
+elif [ -d "$TOPDIR/.svn" ]; then
+	TIMESTAMP=$($SVN info "$TOPDIR" | sed -n "s/^Last Changed Date: \(.*\)/\1/p")
+else
+	TIMESTAMP=$(date)
+fi
+
+ipkg_extract_value() {
+	sed -e "s/^[^:]*:[[:space:]]*//"
+}
+
+required_field() {
+	field=$1
+
+	grep "^$field:" < $CONTROL/control | ipkg_extract_value
+}
+
+pkg_appears_sane() {
+	local pkg_dir=$1
+
+	local owd=$PWD
+	cd $pkg_dir
+
+	PKG_ERROR=0
+	pkg=`required_field Package`
+	version=`required_field Version | sed 's/Version://; s/^.://g;'`
+	arch=`required_field Architecture`
+
+	if echo $pkg | grep '[^a-zA-Z0-9_.+-]'; then
+		echo "*** Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])" >&2
+		PKG_ERROR=1;
+	fi
+
+	if [ -f $CONTROL/conffiles ]; then
+		rm -f $CONTROL/conffiles.resolved
+
+		for cf in `$FIND $(sed -e "s!^/!$pkg_dir/!" $CONTROL/conffiles) -type f`; do
+			echo "${cf#$pkg_dir}" >> $CONTROL/conffiles.resolved
+		done
+
+		rm $CONTROL/conffiles
+		mv $CONTROL/conffiles.resolved $CONTROL/conffiles
+		chmod 0644 $CONTROL/conffiles
+	fi
+
+	cd $owd
+	return $PKG_ERROR
+}
+
+###
+# ipkg-build "main"
+###
+ogargs=""
+noclean=0
+usage="Usage: $0 [-c] [-C] [-o owner] [-g group] <pkg_directory> [<destination_directory>]"
+while getopts "cg:ho:v" opt; do
+    case $opt in
+	o ) owner=$OPTARG
+	    ogargs="--owner=$owner"
+	    ;;
+	g ) group=$OPTARG
+	    ogargs="$ogargs --group=$group"
+	    ;;
+	c ) ;;
+	C ) noclean=1;;
+	v ) echo $version
+	    exit 0
+	    ;;
+	h ) 	echo $usage  >&2 ;;
+	\? ) 	echo $usage  >&2
+	esac
+done
+
+
+shift $(($OPTIND - 1))
+
+# continue on to process additional arguments
+
+case $# in
+1)
+	dest_dir=$PWD
+	;;
+2)
+	dest_dir=$2
+	if [ "$dest_dir" = "." -o "$dest_dir" = "./" ] ; then
+	    dest_dir=$PWD
+	fi
+	;;
+*)
+	echo $usage >&2
+	exit 1 
+	;;
+esac
+
+pkg_dir=$1
+
+if [ ! -d $pkg_dir ]; then
+	echo "*** Error: Directory $pkg_dir does not exist" >&2
+	exit 1
+fi
+
+# CONTROL is second so that it takes precedence
+CONTROL=
+[ -d $pkg_dir/CONTROL ] && CONTROL=CONTROL
+if [ -z "$CONTROL" ]; then
+	echo "*** Error: Directory $pkg_dir has no CONTROL subdirectory." >&2
+	exit 1
+fi
+
+if ! pkg_appears_sane $pkg_dir; then
+	echo >&2
+	echo "ipkg-build: Please fix the above errors and try again." >&2
+	exit 1
+fi
+
+tmp_dir=$dest_dir/IPKG_BUILD.$$
+mkdir $tmp_dir
+
+echo $CONTROL > $tmp_dir/tarX
+# Preserve permissions (-p) when creating data.tar.gz as non-root user
+( cd $pkg_dir && $TAR $ogargs -X $tmp_dir/tarX --format=gnu --sort=name -czpf $tmp_dir/data.tar.gz --mtime="$TIMESTAMP" . )
+
+installed_size=`stat -c "%s" $tmp_dir/data.tar.gz`
+sed -i -e "s/^Installed-Size: .*/Installed-Size: $installed_size/" \
+	$pkg_dir/$CONTROL/control
+
+( cd $pkg_dir/$CONTROL && $TAR $ogargs --format=gnu --sort=name -czf $tmp_dir/control.tar.gz --mtime="$TIMESTAMP" . )
+rm $tmp_dir/tarX
+
+echo "2.0" > $tmp_dir/debian-binary
+
+pkg_file=$dest_dir/${pkg}_${version}_${arch}.ipk
+rm -f $pkg_file
+( cd $tmp_dir && $TAR $ogargs --format=gnu --sort=name -zcf $pkg_file --mtime="$TIMESTAMP" ./debian-binary ./data.tar.gz ./control.tar.gz )
+
+rm $tmp_dir/debian-binary $tmp_dir/data.tar.gz $tmp_dir/control.tar.gz
+rmdir $tmp_dir
+
+echo "Packaged contents of $pkg_dir into $pkg_file"
diff --git a/scripts/ipkg-make-index.sh b/scripts/ipkg-make-index.sh
new file mode 100755
index 0000000..1822227
--- /dev/null
+++ b/scripts/ipkg-make-index.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -e
+
+pkg_dir=$1
+
+if [ -z $pkg_dir ] || [ ! -d $pkg_dir ]; then
+	echo "Usage: ipkg-make-index <package_directory>" >&2
+	exit 1
+fi
+
+which md5sum >/dev/null 2>&1 || alias md5sum=md5
+empty=1
+
+for pkg in `find $pkg_dir -name '*.ipk' | sort`; do
+	empty=
+	name="${pkg##*/}"
+	name="${name%%_*}"
+	[[ "$name" = "kernel" ]] && continue
+	[[ "$name" = "libc" ]] && continue
+	echo "Generating index for package $pkg" >&2
+	file_size=$(ls -l $pkg | awk '{print $5}')
+	md5sum=$(md5sum $pkg | awk '{print $1}')
+	sha256sum=$(openssl dgst -sha256 $pkg | awk '{print $2}')
+	# Take pains to make variable value sed-safe
+	sed_safe_pkg=`echo $pkg | sed -e 's/^\.\///g' -e 's/\\//\\\\\\//g'`
+	tar -xzOf $pkg ./control.tar.gz | tar xzOf - ./control | sed -e "s/^Description:/Filename: $sed_safe_pkg\\
+Size: $file_size\\
+MD5Sum: $md5sum\\
+SHA256sum: $sha256sum\\
+Description:/"
+	echo ""
+done
+[ -n "$empty" ] && echo
+exit 0
diff --git a/scripts/kconfig.pl b/scripts/kconfig.pl
new file mode 100755
index 0000000..45c565e
--- /dev/null
+++ b/scripts/kconfig.pl
@@ -0,0 +1,182 @@
+#!/usr/bin/env perl
+# 
+# Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+use warnings;
+use strict;
+
+my @arg;
+my $PREFIX = "CONFIG_";
+
+sub set_config($$$$) {
+	my $config = shift;
+	my $idx = shift;
+	my $newval = shift;
+	my $mod_plus = shift;
+
+	if (!defined($config->{$idx}) or !$mod_plus or
+	    $config->{$idx} eq '#undef' or $newval eq 'y') {
+		$config->{$idx} = $newval;
+	}
+}
+
+sub load_config($$) {
+	my $file = shift;
+	my $mod_plus = shift;
+	my %config;
+
+	open FILE, "$file" or die "can't open file '$file'";
+	while (<FILE>) {
+		chomp;
+		/^$PREFIX(.+?)=(.+)/ and do {
+			set_config(\%config, $1, $2, $mod_plus);
+			next;
+		};
+		/^# $PREFIX(.+?) is not set/ and do {
+			set_config(\%config, $1, "#undef", $mod_plus);
+			next;
+		};
+		/^#/ and next;
+		/^(.+)$/ and warn "WARNING: can't parse line: $1\n";
+	}
+	return \%config;
+}
+
+
+sub config_and($$) {
+	my $cfg1 = shift;
+	my $cfg2 = shift;
+	my %config;
+
+	foreach my $config (keys %$cfg1) {
+		my $val1 = $cfg1->{$config};
+		my $val2 = $cfg2->{$config};
+		$val2 and ($val1 eq $val2) and do {
+			$config{$config} = $val1;
+		};
+	}
+	return \%config;
+}
+
+
+sub config_add($$$) {
+	my $cfg1 = shift;
+	my $cfg2 = shift;
+	my $mod_plus = shift;
+	my %config;
+	
+	for ($cfg1, $cfg2) {
+		my %cfg = %$_;
+		
+		foreach my $config (keys %cfg) {
+			if ($mod_plus and $config{$config}) {
+				next if $config{$config} eq "y";
+				next if $cfg{$config} eq '#undef';
+			}
+			$config{$config} = $cfg{$config};
+		}
+	}
+	return \%config;
+}
+
+sub config_diff($$$) {
+	my $cfg1 = shift;
+	my $cfg2 = shift;
+	my $new_only = shift;
+	my %config;
+	
+	foreach my $config (keys %$cfg2) {
+		if (!defined($cfg1->{$config}) or $cfg1->{$config} ne $cfg2->{$config}) {
+			next if $new_only and !defined($cfg1->{$config}) and $cfg2->{$config} eq '#undef';
+			$config{$config} = $cfg2->{$config};
+		}
+	}
+	return \%config
+}
+
+sub config_sub($$) {
+	my $cfg1 = shift;
+	my $cfg2 = shift;
+	my %config = %{$cfg1};
+	
+	foreach my $config (keys %$cfg2) {
+		delete $config{$config};
+	}
+	return \%config;
+}
+
+sub print_cfgline($$) {
+	my $name = shift;
+	my $val = shift;
+	if ($val eq '#undef' or $val eq 'n') {
+		print "# $PREFIX$name is not set\n";
+	} else {
+		print "$PREFIX$name=$val\n";
+	}
+}
+
+
+sub dump_config($) {
+	my $cfg = shift;
+	die "argument error in dump_config" unless ($cfg);
+	my %config = %$cfg;
+	foreach my $config (sort keys %config) {
+		print_cfgline($config, $config{$config});
+	}
+}
+
+sub parse_expr {
+	my $pos = shift;
+	my $mod_plus = shift;
+	my $arg = $arg[$$pos++];
+
+	die "Parse error" if (!$arg);
+
+	if ($arg eq '&') {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos);
+		return config_and($arg1, $arg2);
+	} elsif ($arg =~ /^\+/) {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos);
+		return config_add($arg1, $arg2, 0);
+	} elsif ($arg =~ /^m\+/) {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos, 1);
+		return config_add($arg1, $arg2, 1);
+	} elsif ($arg eq '>') {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos);
+		return config_diff($arg1, $arg2, 0);
+	} elsif ($arg eq '>+') {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos);
+		return config_diff($arg1, $arg2, 1);
+	} elsif ($arg eq '-') {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos);
+		return config_sub($arg1, $arg2);
+	} else {
+		return load_config($arg, $mod_plus);
+	}
+}
+
+while (@ARGV > 0 and $ARGV[0] =~ /^-\w+$/) {
+	my $cmd = shift @ARGV;
+	if ($cmd =~ /^-n$/) {
+		$PREFIX = "";
+	} elsif ($cmd =~ /^-p$/) {
+		$PREFIX = shift @ARGV;
+	} else {
+		die "Invalid option: $cmd\n";
+	}
+}
+@arg = @ARGV;
+
+my $pos = 0;
+dump_config(parse_expr(\$pos));
+die "Parse error" if ($arg[$pos]);
diff --git a/scripts/make-ipkg-dir.sh b/scripts/make-ipkg-dir.sh
new file mode 100755
index 0000000..902a4b5
--- /dev/null
+++ b/scripts/make-ipkg-dir.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+BASE=http://svn.openwrt.org/openwrt/trunk/openwrt
+TARGET=$1
+CONTROL=$2
+VERSION=$3
+ARCH=$4
+
+WD=$(pwd)
+
+mkdir -p "$TARGET/CONTROL"
+grep '^[^(Version|Architecture)]' "$CONTROL" > "$TARGET/CONTROL/control"
+grep '^Maintainer' "$CONTROL" 2>&1 >/dev/null || \
+        echo "Maintainer: OpenWrt Developers Team <openwrt-devel@openwrt.org>" >> "$TARGET/CONTROL/control"
+grep '^Source' "$CONTROL" 2>&1 >/dev/null || {
+        pkgbase=$(echo "$WD" | sed -e "s|^$TOPDIR/||g")
+        [ "$pkgbase" = "$WD" ] && src="N/A" || src="$BASE/$pkgbase"
+        echo "Source: $src" >> "$TARGET/CONTROL/control"
+}
+echo "Version: $VERSION" >> "$TARGET/CONTROL/control"
+echo "Architecture: $ARCH" >> "$TARGET/CONTROL/control"
+chmod 644 "$TARGET/CONTROL/control"
diff --git a/scripts/md5sum b/scripts/md5sum
new file mode 100755
index 0000000..a5779c4
--- /dev/null
+++ b/scripts/md5sum
@@ -0,0 +1,2 @@
+#!/bin/sh
+cat "$@" | md5
diff --git a/scripts/metadata.pl b/scripts/metadata.pl
new file mode 100755
index 0000000..54341c4
--- /dev/null
+++ b/scripts/metadata.pl
@@ -0,0 +1,901 @@
+#!/usr/bin/env perl
+use FindBin;
+use lib "$FindBin::Bin";
+use strict;
+use metadata;
+
+my %board;
+
+sub version_to_num($) {
+	my $str = shift;
+	my $num = 0;
+
+	if (defined($str) && $str =~ /^\d+(?:\.\d+)+$/)
+	{
+		my @n = (split(/\./, $str), 0, 0, 0, 0);
+		$num = ($n[0] << 24) | ($n[1] << 16) | ($n[2] << 8) | $n[3];
+	}
+
+	return $num;
+}
+
+sub version_filter_list(@) {
+	my $cmpver = version_to_num(shift @_);
+	my @items;
+
+	foreach my $item (@_)
+	{
+		if ($item =~ s/@(lt|le|gt|ge|eq|ne)(\d+(?:\.\d+)+)\b//)
+		{
+			my $op = $1;
+			my $symver = version_to_num($2);
+
+			if ($symver > 0 && $cmpver > 0)
+			{
+				next unless (($op eq 'lt' && $cmpver <  $symver) ||
+				             ($op eq 'le' && $cmpver <= $symver) ||
+				             ($op eq 'gt' && $cmpver >  $symver) ||
+				             ($op eq 'ge' && $cmpver >= $symver) ||
+				             ($op eq 'eq' && $cmpver == $symver) ||
+				             ($op eq 'ne' && $cmpver != $symver));
+			}
+		}
+
+		push @items, $item;
+	}
+
+	return @items;
+}
+
+sub gen_kconfig_overrides() {
+	my %config;
+	my %kconfig;
+	my $package;
+	my $pkginfo = shift @ARGV;
+	my $cfgfile = shift @ARGV;
+	my $patchver = shift @ARGV;
+
+	# parameter 2: build system config
+	open FILE, "<$cfgfile" or return;
+	while (<FILE>) {
+		/^(CONFIG_.+?)=(.+)$/ and $config{$1} = 1;
+	}
+	close FILE;
+
+	# parameter 1: package metadata
+	open FILE, "<$pkginfo" or return;
+	while (<FILE>) {
+		/^Package:\s*(.+?)\s*$/ and $package = $1;
+		/^Kernel-Config:\s*(.+?)\s*$/ and do {
+			my @config = split /\s+/, $1;
+			foreach my $config (version_filter_list($patchver, @config)) {
+				my $val = 'm';
+				my $override;
+				if ($config =~ /^(.+?)=(.+)$/) {
+					$config = $1;
+					$override = 1;
+					$val = $2;
+				}
+				if ($config{"CONFIG_PACKAGE_$package"} and ($config ne 'n')) {
+					next if $kconfig{$config} eq 'y';
+					$kconfig{$config} = $val;
+				} elsif (!$override) {
+					$kconfig{$config} or $kconfig{$config} = 'n';
+				}
+			}
+		};
+	};
+	close FILE;
+
+	foreach my $kconfig (sort keys %kconfig) {
+		if ($kconfig{$kconfig} eq 'n') {
+			print "# $kconfig is not set\n";
+		} else {
+			print "$kconfig=$kconfig{$kconfig}\n";
+		}
+	}
+}
+
+sub merge_package_lists($$) {
+	my $list1 = shift;
+	my $list2 = shift;
+	my @l = ();
+	my %pkgs;
+
+	foreach my $pkg (@$list1, @$list2) {
+		$pkgs{$pkg} = 1;
+	}
+	foreach my $pkg (keys %pkgs) {
+		push @l, $pkg unless ($pkg =~ /^-/ or $pkgs{"-$pkg"});
+	}
+	return sort(@l);
+}
+
+sub target_config_features(@) {
+	my $ret;
+
+	while ($_ = shift @_) {
+		/arm_v(\w+)/ and $ret .= "\tselect arm_v$1\n";
+		/broken/ and $ret .= "\tdepends on BROKEN\n";
+		/audio/ and $ret .= "\tselect AUDIO_SUPPORT\n";
+		/display/ and $ret .= "\tselect DISPLAY_SUPPORT\n";
+		/dt/ and $ret .= "\tselect USES_DEVICETREE\n";
+		/gpio/ and $ret .= "\tselect GPIO_SUPPORT\n";
+		/pci/ and $ret .= "\tselect PCI_SUPPORT\n";
+		/pcie/ and $ret .= "\tselect PCIE_SUPPORT\n";
+		/usb/ and $ret .= "\tselect USB_SUPPORT\n";
+		/usbgadget/ and $ret .= "\tselect USB_GADGET_SUPPORT\n";
+		/pcmcia/ and $ret .= "\tselect PCMCIA_SUPPORT\n";
+		/rtc/ and $ret .= "\tselect RTC_SUPPORT\n";
+		/squashfs/ and $ret .= "\tselect USES_SQUASHFS\n";
+		/jffs2$/ and $ret .= "\tselect USES_JFFS2\n";
+		/jffs2_nand/ and $ret .= "\tselect USES_JFFS2_NAND\n";
+		/ext4/ and $ret .= "\tselect USES_EXT4\n";
+		/targz/ and $ret .= "\tselect USES_TARGZ\n";
+		/cpiogz/ and $ret .= "\tselect USES_CPIOGZ\n";
+		/ubifs/ and $ret .= "\tselect USES_UBIFS\n";
+		/fpu/ and $ret .= "\tselect HAS_FPU\n";
+		/spe_fpu/ and $ret .= "\tselect HAS_SPE_FPU\n";
+		/ramdisk/ and $ret .= "\tselect USES_INITRAMFS\n";
+		/powerpc64/ and $ret .= "\tselect powerpc64\n";
+		/nommu/ and $ret .= "\tselect NOMMU\n";
+		/mips16/ and $ret .= "\tselect HAS_MIPS16\n";
+		/rfkill/ and $ret .= "\tselect RFKILL_SUPPORT\n";
+		/low_mem/ and $ret .= "\tselect LOW_MEMORY_FOOTPRINT\n";
+		/nand/ and $ret .= "\tselect NAND_SUPPORT\n";
+	}
+	return $ret;
+}
+
+sub target_name($) {
+	my $target = shift;
+	my $parent = $target->{parent};
+	if ($parent) {
+		return $target->{parent}->{name}." - ".$target->{name};
+	} else {
+		return $target->{name};
+	}
+}
+
+sub kver($) {
+	my $v = shift;
+	$v =~ tr/\./_/;
+	if (substr($v,0,2) eq "2_") {
+		$v =~ /(\d+_\d+_\d+)(_\d+)?/ and $v = $1;
+	} else {
+		$v =~ /(\d+_\d+)(_\d+)?/ and $v = $1;
+	}
+	return $v;
+}
+
+sub print_target($) {
+	my $target = shift;
+	my $features = target_config_features(@{$target->{features}});
+	my $help = $target->{desc};
+	my $confstr;
+
+	chomp $features;
+	$features .= "\n";
+	if ($help =~ /\w+/) {
+		$help =~ s/^\s*/\t  /mg;
+		$help = "\thelp\n$help";
+	} else {
+		undef $help;
+	}
+
+	my $v = kver($target->{version});
+	if (@{$target->{subtargets}} == 0) {
+	$confstr = <<EOF;
+config TARGET_$target->{conf}
+	bool "$target->{name}"
+	select LINUX_$v
+EOF
+	}
+	else {
+		$confstr = <<EOF;
+config TARGET_$target->{conf}
+	bool "$target->{name}"
+EOF
+	}
+	if ($target->{subtarget}) {
+		$confstr .= "\tdepends on TARGET_$target->{boardconf}\n";
+	}
+	if (@{$target->{subtargets}} > 0) {
+		$confstr .= "\tselect HAS_SUBTARGETS\n";
+		grep { /broken/ } @{$target->{features}} and $confstr .= "\tdepends on BROKEN\n";
+	} else {
+		$confstr .= $features;
+		if ($target->{arch} =~ /\w/) {
+			$confstr .= "\tselect $target->{arch}\n";
+		}
+	}
+
+	foreach my $dep (@{$target->{depends}}) {
+		my $mode = "depends on";
+		my $flags;
+		my $name;
+
+		$dep =~ /^([@\+\-]+)(.+)$/;
+		$flags = $1;
+		$name = $2;
+
+		next if $name =~ /:/;
+		$flags =~ /-/ and $mode = "deselect";
+		$flags =~ /\+/ and $mode = "select";
+		$flags =~ /@/ and $confstr .= "\t$mode $name\n";
+	}
+	$confstr .= "$help\n\n";
+	print $confstr;
+}
+
+sub gen_target_config() {
+	my $file = shift @ARGV;
+	my @target = parse_target_metadata($file);
+	my %defaults;
+
+	my @target_sort = sort {
+		target_name($a) cmp target_name($b);
+	} @target;
+
+
+	print <<EOF;
+choice
+	prompt "Target System"
+	default TARGET_ar71xx
+	reset if !DEVEL
+	
+EOF
+
+	foreach my $target (@target_sort) {
+		next if $target->{subtarget};
+		print_target($target);
+	}
+
+	print <<EOF;
+endchoice
+
+choice
+	prompt "Subtarget" if HAS_SUBTARGETS
+EOF
+	foreach my $target (@target) {
+		next unless $target->{def_subtarget};
+		print <<EOF;
+	default TARGET_$target->{conf}_$target->{def_subtarget} if TARGET_$target->{conf}
+EOF
+	}
+	print <<EOF;
+
+EOF
+	foreach my $target (@target) {
+		next unless $target->{subtarget};
+		print_target($target);
+	}
+
+print <<EOF;
+endchoice
+
+choice
+	prompt "Target Profile"
+
+EOF
+
+	foreach my $target (@target) {
+		my $profiles = $target->{profiles};
+
+		foreach my $profile (@$profiles) {
+			print <<EOF;
+config TARGET_$target->{conf}_$profile->{id}
+	bool "$profile->{name}"
+	depends on TARGET_$target->{conf}
+$profile->{config}
+EOF
+			$profile->{kconfig} and print "\tselect PROFILE_KCONFIG\n";
+			my @pkglist = merge_package_lists($target->{packages}, $profile->{packages});
+			foreach my $pkg (@pkglist) {
+				print "\tselect DEFAULT_$pkg\n";
+				$defaults{$pkg} = 1;
+			}
+			my $help = $profile->{desc};
+			if ($help =~ /\w+/) {
+				$help =~ s/^\s*/\t  /mg;
+				$help = "\thelp\n$help";
+			} else {
+				undef $help;
+			}
+			print "$help\n";
+		}
+	}
+
+	print <<EOF;
+endchoice
+
+config HAS_SUBTARGETS
+	bool
+
+config TARGET_BOARD
+	string
+
+EOF
+	foreach my $target (@target) {
+		$target->{subtarget} or	print "\t\tdefault \"".$target->{board}."\" if TARGET_".$target->{conf}."\n";
+	}
+	print <<EOF;
+config TARGET_ARCH_PACKAGES
+	string
+	
+EOF
+	foreach my $target (@target) {
+		next if @{$target->{subtargets}} > 0;
+		print "\t\tdefault \"".($target->{arch_packages} || $target->{board})."\" if TARGET_".$target->{conf}."\n";
+	}
+	print <<EOF;
+
+config DEFAULT_TARGET_OPTIMIZATION
+	string
+EOF
+	foreach my $target (@target) {
+		next if @{$target->{subtargets}} > 0;
+		print "\tdefault \"".$target->{cflags}."\" if TARGET_".$target->{conf}."\n";
+	}
+	print "\tdefault \"-Os -pipe -funit-at-a-time\"\n";
+	print <<EOF;
+
+config CPU_TYPE
+	string
+EOF
+	foreach my $target (@target) {
+		next if @{$target->{subtargets}} > 0;
+		print "\tdefault \"".$target->{cputype}."\" if TARGET_".$target->{conf}."\n";
+	}
+	print "\tdefault \"\"\n";
+
+	my %kver;
+	foreach my $target (@target) {
+		my $v = kver($target->{version});
+		next if $kver{$v};
+		$kver{$v} = 1;
+		print <<EOF;
+
+config LINUX_$v
+	bool
+
+EOF
+	}
+	foreach my $def (sort keys %defaults) {
+		print "\tconfig DEFAULT_".$def."\n";
+		print "\t\tbool\n\n";
+	}
+}
+
+my %dep_check;
+sub __find_package_dep($$) {
+	my $pkg = shift;
+	my $name = shift;
+	my $deps = ($pkg->{vdepends} or $pkg->{depends});
+
+	return 0 unless defined $deps;
+	foreach my $dep (@{$deps}) {
+		next if $dep_check{$dep};
+		$dep_check{$dep} = 1;
+		return 1 if $dep eq $name;
+		return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1));
+	}
+	return 0;
+}
+
+# wrapper to avoid infinite recursion
+sub find_package_dep($$) {
+	my $pkg = shift;
+	my $name = shift;
+
+	%dep_check = ();
+	return __find_package_dep($pkg, $name);
+}
+
+sub package_depends($$) {
+	my $a = shift;
+	my $b = shift;
+	my $ret;
+
+	return 0 if ($a->{submenu} ne $b->{submenu});
+	if (find_package_dep($a, $b->{name}) == 1) {
+		$ret = 1;
+	} elsif (find_package_dep($b, $a->{name}) == 1) {
+		$ret = -1;
+	} else {
+		return 0;
+	}
+	return $ret;
+}
+
+sub mconf_depends {
+	my $pkgname = shift;
+	my $depends = shift;
+	my $only_dep = shift;
+	my $res;
+	my $dep = shift;
+	my $seen = shift;
+	my $parent_condition = shift;
+	$dep or $dep = {};
+	$seen or $seen = {};
+	my @t_depends;
+
+	$depends or return;
+	my @depends = @$depends;
+	foreach my $depend (@depends) {
+		my $m = "depends on";
+		my $flags = "";
+		$depend =~ s/^([@\+]+)// and $flags = $1;
+		my $vdep;
+		my $condition = $parent_condition;
+
+		next if $condition eq $depend;
+		next if $seen->{"$parent_condition:$depend"};
+		next if $seen->{":$depend"};
+		$seen->{"$parent_condition:$depend"} = 1;
+		if ($depend =~ /^(.+):(.+)$/) {
+			if ($1 ne "PACKAGE_$pkgname") {
+				if ($condition) {
+					$condition = "$condition && $1";
+				} else {
+					$condition = $1;
+				}
+			}
+			$depend = $2;
+		}
+		next if $package{$depend} and $package{$depend}->{buildonly};
+		if ($vdep = $package{$depend}->{vdepends}) {
+			$depend = join("||", map { "PACKAGE_".$_ } @$vdep);
+		} else {
+			$flags =~ /\+/ and do {
+				# Menuconfig will not treat 'select FOO' as a real dependency
+				# thus if FOO depends on other config options, these dependencies
+				# will not be checked. To fix this, we simply emit all of FOO's
+				# depends here as well.
+				$package{$depend} and push @t_depends, [ $package{$depend}->{depends}, $condition ];
+
+				$m = "select";
+				next if $only_dep;
+			};
+			$flags =~ /@/ or $depend = "PACKAGE_$depend";
+			if ($condition) {
+				if ($m =~ /select/) {
+					next if $depend eq $condition;
+					$depend = "$depend if $condition";
+				} else {
+					$depend = "!($condition) || $depend" unless $dep->{$condition} eq 'select';
+				}
+			}
+		}
+		$dep->{$depend} =~ /select/ or $dep->{$depend} = $m;
+	}
+
+	foreach my $tdep (@t_depends) {
+		mconf_depends($pkgname, $tdep->[0], 1, $dep, $seen, $tdep->[1]);
+	}
+
+	foreach my $depend (keys %$dep) {
+		my $m = $dep->{$depend};
+		$res .= "\t\t$m $depend\n";
+	}
+	return $res;
+}
+
+sub mconf_conflicts {
+	my $pkgname = shift;
+	my $depends = shift;
+	my $res = "";
+
+	foreach my $depend (@$depends) {
+		next unless $package{$depend};
+		$res .= "\t\tdepends on m || (PACKAGE_$depend != y)\n";
+	}
+	return $res;
+}
+
+sub print_package_config_category($) {
+	my $cat = shift;
+	my %menus;
+	my %menu_dep;
+
+	return unless $category{$cat};
+
+	print "menu \"$cat\"\n\n";
+	my %spkg = %{$category{$cat}};
+
+	foreach my $spkg (sort {uc($a) cmp uc($b)} keys %spkg) {
+		foreach my $pkg (@{$spkg{$spkg}}) {
+			next if $pkg->{buildonly};
+			my $menu = $pkg->{submenu};
+			if ($menu) {
+				$menu_dep{$menu} or $menu_dep{$menu} = $pkg->{submenudep};
+			} else {
+				$menu = 'undef';
+			}
+			$menus{$menu} or $menus{$menu} = [];
+			push @{$menus{$menu}}, $pkg;
+		}
+	}
+	my @menus = sort {
+		($a eq 'undef' ?  1 : 0) or
+		($b eq 'undef' ? -1 : 0) or
+		($a cmp $b)
+	} keys %menus;
+
+	foreach my $menu (@menus) {
+		my @pkgs = sort {
+			package_depends($a, $b) or
+			($a->{name} cmp $b->{name})
+		} @{$menus{$menu}};
+		if ($menu ne 'undef') {
+			$menu_dep{$menu} and print "if $menu_dep{$menu}\n";
+			print "menu \"$menu\"\n";
+		}
+		foreach my $pkg (@pkgs) {
+			my $title = $pkg->{name};
+			my $c = (72 - length($pkg->{name}) - length($pkg->{title}));
+			if ($c > 0) {
+				$title .= ("." x $c). " ". $pkg->{title};
+			}
+			$title = "\"$title\"";
+			print "\t";
+			$pkg->{menu} and print "menu";
+			print "config PACKAGE_".$pkg->{name}."\n";
+			$pkg->{hidden} and $title = "";
+			print "\t\t".($pkg->{tristate} ? 'tristate' : 'bool')." $title\n";
+			print "\t\tdefault y if DEFAULT_".$pkg->{name}."\n";
+			unless ($pkg->{hidden}) {
+				if ($pkg->{name} =~ /^kmod-/) {
+					$pkg->{default} ||= "m if ALL_KMODS";
+				} else {
+					$pkg->{default} ||= "m if ALL";
+				}
+			}
+			if ($pkg->{default}) {
+				foreach my $default (split /\s*,\s*/, $pkg->{default}) {
+					print "\t\tdefault $default\n";
+				}
+			}
+			print mconf_depends($pkg->{name}, $pkg->{depends}, 0);
+			print mconf_depends($pkg->{name}, $pkg->{mdepends}, 0);
+			print mconf_conflicts($pkg->{name}, $pkg->{conflicts});
+			print "\t\thelp\n";
+			print $pkg->{description};
+			print "\n";
+
+			$pkg->{config} and print $pkg->{config}."\n";
+		}
+		if ($menu ne 'undef') {
+			print "endmenu\n";
+			$menu_dep{$menu} and print "endif\n";
+		}
+	}
+	print "endmenu\n\n";
+
+	undef $category{$cat};
+}
+
+sub print_package_features() {
+	keys %features > 0 or return;
+	print "menu \"Package features\"\n";
+	foreach my $n (keys %features) {
+		my @features = sort { $b->{priority} <=> $a->{priority} or $a->{title} cmp $b->{title} } @{$features{$n}};
+		print <<EOF;
+choice
+	prompt "$features[0]->{target_title}"
+	default FEATURE_$features[0]->{name}
+EOF
+
+		foreach my $feature (@features) {
+			print <<EOF;
+	config FEATURE_$feature->{name}
+		bool "$feature->{title}"
+EOF
+			$feature->{description} =~ /\w/ and do {
+				print "\t\thelp\n".$feature->{description}."\n";
+			};
+		}
+		print "endchoice\n"
+	}
+	print "endmenu\n\n";
+}
+
+sub print_package_overrides() {
+	keys %overrides > 0 or return;
+	print "\tconfig OVERRIDE_PKGS\n";
+	print "\t\tstring\n";
+	print "\t\tdefault \"".join(" ", keys %overrides)."\"\n\n";
+}
+
+sub gen_package_config() {
+	parse_package_metadata($ARGV[0]) or exit 1;
+	print "menuconfig IMAGEOPT\n\tbool \"Image configuration\"\n\tdefault n\n";
+	foreach my $preconfig (keys %preconfig) {
+		foreach my $cfg (keys %{$preconfig{$preconfig}}) {
+			my $conf = $preconfig{$preconfig}->{$cfg}->{id};
+			$conf =~ tr/\.-/__/;
+			print <<EOF
+	config UCI_PRECONFIG_$conf
+		string "$preconfig{$preconfig}->{$cfg}->{label}" if IMAGEOPT
+		depends on PACKAGE_$preconfig
+		default "$preconfig{$preconfig}->{$cfg}->{default}"
+
+EOF
+		}
+	}
+	print "source \"package/*/image-config.in\"\n";
+	if (scalar glob "package/feeds/*/*/image-config.in") {
+	    print "source \"package/feeds/*/*/image-config.in\"\n";
+	}
+	print_package_features();
+	print_package_config_category 'Base system';
+	foreach my $cat (sort {uc($a) cmp uc($b)} keys %category) {
+		print_package_config_category $cat;
+	}
+	print_package_overrides();
+}
+
+sub get_conditional_dep($$) {
+	my $condition = shift;
+	my $depstr = shift;
+	if ($condition) {
+		if ($condition =~ /^!(.+)/) {
+			return "\$(if \$(CONFIG_$1),,$depstr)";
+		} else {
+			return "\$(if \$(CONFIG_$condition),$depstr)";
+		}
+	} else {
+		return $depstr;
+	}
+}
+
+sub gen_package_mk() {
+	my %conf;
+	my %dep;
+	my %done;
+	my $line;
+
+	parse_package_metadata($ARGV[0]) or exit 1;
+	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
+		my $config;
+		my $pkg = $package{$name};
+		my @srcdeps;
+
+		next if defined $pkg->{vdepends};
+
+		$config = "\$(CONFIG_PACKAGE_$name)";
+		if ($config) {
+			$pkg->{buildonly} and $config = "";
+			print "package-$config += $pkg->{subdir}$pkg->{src}\n";
+			if ($pkg->{variant}) {
+				if (!defined($done{$pkg->{src}}) or $pkg->{variant_default}) {
+					print "\$(curdir)/$pkg->{subdir}$pkg->{src}/default-variant := $pkg->{variant}\n";
+				}
+				print "\$(curdir)/$pkg->{subdir}$pkg->{src}/variants += \$(if $config,$pkg->{variant})\n"
+			}
+			$pkg->{prereq} and print "prereq-$config += $pkg->{subdir}$pkg->{src}\n";
+		}
+
+		next if $done{$pkg->{src}};
+		$done{$pkg->{src}} = 1;
+
+		if (@{$pkg->{buildtypes}} > 0) {
+			print "buildtypes-$pkg->{subdir}$pkg->{src} = ".join(' ', @{$pkg->{buildtypes}})."\n";
+		}
+
+		foreach my $spkg (@{$srcpackage{$pkg->{src}}}) {
+			foreach my $dep (@{$spkg->{depends}}, @{$spkg->{builddepends}}) {
+				$dep =~ /@/ or do {
+					$dep =~ s/\+//g;
+					push @srcdeps, $dep;
+				};
+			}
+		}
+		foreach my $type (@{$pkg->{buildtypes}}) {
+			my @extra_deps;
+			my %deplines;
+
+			next unless $pkg->{"builddepends/$type"};
+			foreach my $dep (@{$pkg->{"builddepends/$type"}}) {
+				my $suffix = "";
+				my $condition;
+
+				if ($dep =~ /^(.+):(.+)/) {
+					$condition = $1;
+					$dep = $2;
+				}
+				if ($dep =~ /^(.+)(\/.+)/) {
+					$dep = $1;
+					$suffix = $2;
+				}
+
+				my $idx = "";
+				my $pkg_dep = $package{$dep};
+				if (defined($pkg_dep) && defined($pkg_dep->{src})) {
+					$idx = $pkg_dep->{subdir}.$pkg_dep->{src};
+				} elsif (defined($srcpackage{$dep})) {
+					$idx = $subdir{$dep}.$dep;
+				} else {
+					next;
+				}
+				my $depstr = "\$(curdir)/$idx$suffix/compile";
+				my $depline = get_conditional_dep($condition, $depstr);
+				if ($depline) {
+					$deplines{$depline}++;
+				}
+			}
+			my $depline = join(" ", sort keys %deplines);
+			if ($depline) {
+				$line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/$type/compile += $depline\n";
+			}
+		}
+
+		my $hasdeps = 0;
+		my %deplines;
+		foreach my $deps (@srcdeps) {
+			my $idx;
+			my $condition;
+			my $prefix = "";
+			my $suffix = "";
+
+			if ($deps =~ /^(.+):(.+)/) {
+				$condition = $1;
+				$deps = $2;
+			}
+			if ($deps =~ /^(.+)(\/.+)/) {
+				$deps = $1;
+				$suffix = $2;
+			}
+
+			my $pkg_dep = $package{$deps};
+			my @deps;
+
+			if ($pkg_dep->{vdepends}) {
+				@deps = @{$pkg_dep->{vdepends}};
+			} else {
+				@deps = ($deps);
+			}
+
+			foreach my $dep (@deps) {
+				$pkg_dep = $package{$deps};
+				if (defined $pkg_dep->{src}) {
+					($pkg->{src} ne $pkg_dep->{src}.$suffix) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src};
+				} elsif (defined($srcpackage{$dep})) {
+					$idx = $subdir{$dep}.$dep;
+				}
+				undef $idx if $idx eq 'base-files';
+				if ($idx) {
+					$idx .= $suffix;
+
+					my $depline;
+					next if $pkg->{src} eq $pkg_dep->{src}.$suffix;
+					next if $dep{$condition.":".$pkg->{src}."->".$idx};
+					next if $dep{$pkg->{src}."->($dep)".$idx} and $pkg_dep->{vdepends};
+					my $depstr;
+
+					if ($pkg_dep->{vdepends}) {
+						$depstr = "\$(if \$(CONFIG_PACKAGE_$dep),\$(curdir)/$idx/compile)";
+						$dep{$pkg->{src}."->($dep)".$idx} = 1;
+					} else {
+						$depstr = "\$(curdir)/$idx/compile";
+						$dep{$pkg->{src}."->".$idx} = 1;
+					}
+					$depline = get_conditional_dep($condition, $depstr);
+					if ($depline) {
+						$deplines{$depline}++;
+					}
+				}
+			}
+		}
+		my $depline = join(" ", sort keys %deplines);
+		if ($depline) {
+			$line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/compile += $depline\n";
+		}
+	}
+
+	if ($line ne "") {
+		print "\n$line";
+	}
+	foreach my $preconfig (keys %preconfig) {
+		my $cmds;
+		foreach my $cfg (keys %{$preconfig{$preconfig}}) {
+			my $conf = $preconfig{$preconfig}->{$cfg}->{id};
+			$conf =~ tr/\.-/__/;
+			$cmds .= "\techo \"uci set '$preconfig{$preconfig}->{$cfg}->{id}=\$(subst \",,\$(CONFIG_UCI_PRECONFIG_$conf))'\"; \\\n";
+		}
+		next unless $cmds;
+		print <<EOF
+
+ifndef DUMP_TARGET_DB
+\$(TARGET_DIR)/etc/uci-defaults/$preconfig: FORCE
+	( \\
+$cmds \\
+	) > \$@
+	
+ifneq (\$(IMAGEOPT)\$(CONFIG_IMAGEOPT),)
+  package/preconfig: \$(TARGET_DIR)/etc/uci-defaults/$preconfig
+endif
+endif
+
+EOF
+	}
+}
+
+sub gen_package_source() {
+	parse_package_metadata($ARGV[0]) or exit 1;
+	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
+		my $pkg = $package{$name};
+		if ($pkg->{name} && $pkg->{source}) {
+			print "$pkg->{name}: ";
+			print "$pkg->{source}\n";
+		}
+	}
+}
+
+sub gen_package_feeds() {
+	parse_package_metadata($ARGV[0]) or exit 1;
+	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
+		my $pkg = $package{$name};
+		if ($pkg->{name} && $pkg->{feed}) {
+			print "Package/$name/feed = $pkg->{feed}\n";
+		}
+	}
+}
+
+sub gen_package_license($) {
+	my $level = shift;
+	parse_package_metadata($ARGV[0]) or exit 1;
+	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
+		my $pkg = $package{$name};
+		if ($pkg->{name}) {
+			if ($pkg->{license}) {
+				print "$pkg->{name}: ";
+				print "$pkg->{license}\n";
+				if ($pkg->{licensefiles} && $level == 0) {
+					print "\tFiles: $pkg->{licensefiles}\n";
+				}
+			} else {
+				if ($level == 1) {
+					print "$pkg->{name}: Missing license! ";
+					print "Please fix $pkg->{makefile}\n";
+				}
+			}
+		}
+	}
+}
+
+sub gen_version_filtered_list() {
+	foreach my $item (version_filter_list(@ARGV)) {
+		print "$item\n";
+	}
+}
+
+sub parse_command() {
+	my $cmd = shift @ARGV;
+	for ($cmd) {
+		/^target_config$/ and return gen_target_config();
+		/^package_mk$/ and return gen_package_mk();
+		/^package_config$/ and return gen_package_config();
+		/^kconfig/ and return gen_kconfig_overrides();
+		/^package_source$/ and return gen_package_source();
+		/^package_feeds$/ and return gen_package_feeds();
+		/^package_license$/ and return gen_package_license(0);
+		/^package_licensefull$/ and return gen_package_license(1);
+		/^version_filter$/ and return gen_version_filtered_list();
+	}
+	print <<EOF
+Available Commands:
+	$0 target_config [file] 		Target metadata in Kconfig format
+	$0 package_mk [file]			Package metadata in makefile format
+	$0 package_config [file] 		Package metadata in Kconfig format
+	$0 kconfig [file] [config] [patchver]	Kernel config overrides
+	$0 package_source [file] 		Package source file information
+	$0 package_feeds [file]			Package feed information in makefile format
+	$0 package_license [file] 		Package license information
+	$0 package_licensefull [file] 		Package license information (full list)
+	$0 version_filter [patchver] [list...]	Filter list of version tagged strings
+
+EOF
+}
+
+parse_command();
diff --git a/scripts/metadata.pm b/scripts/metadata.pm
new file mode 100644
index 0000000..09273df
--- /dev/null
+++ b/scripts/metadata.pm
@@ -0,0 +1,259 @@
+package metadata;
+use base 'Exporter';
+use strict;
+use warnings;
+our @EXPORT = qw(%package %srcpackage %category %subdir %preconfig %features %overrides clear_packages parse_package_metadata parse_target_metadata get_multiline);
+
+our %package;
+our %preconfig;
+our %srcpackage;
+our %category;
+our %subdir;
+our %features;
+our %overrides;
+
+sub get_multiline {
+	my $fh = shift;
+	my $prefix = shift;
+	my $str;
+	while (<$fh>) {
+		last if /^@@/;
+		$str .= (($_ and $prefix) ? $prefix . $_ : $_);
+	}
+
+	return $str ? $str : "";
+}
+
+sub confstr($) {
+	my $conf = shift;
+	$conf =~ tr#/\.\-/#___#;
+	return $conf;
+}
+
+sub parse_target_metadata($) {
+	my $file = shift;
+	my ($target, @target, $profile);
+	my %target;
+	my $makefile;
+
+	open FILE, "<$file" or do {
+		warn "Can't open file '$file': $!\n";
+		return;
+	};
+	while (<FILE>) {
+		chomp;
+		/^Source-Makefile: \s*((.+\/)([^\/]+)\/Makefile)\s*$/ and $makefile = $1;
+		/^Target:\s*(.+)\s*$/ and do {
+			my $name = $1;
+			$target = {
+				id => $name,
+				board => $name,
+				makefile => $makefile,
+				boardconf => confstr($name),
+				conf => confstr($name),
+				profiles => [],
+				features => [],
+				depends => [],
+				subtargets => []
+			};
+			push @target, $target;
+			$target{$name} = $target;
+			if ($name =~ /([^\/]+)\/([^\/]+)/) {
+				push @{$target{$1}->{subtargets}}, $2;
+				$target->{board} = $1;
+				$target->{boardconf} = confstr($1);
+				$target->{subtarget} = 1;
+				$target->{parent} = $target{$1};
+			}
+		};
+		/^Target-Name:\s*(.+)\s*$/ and $target->{name} = $1;
+		/^Target-Path:\s*(.+)\s*$/ and $target->{path} = $1;
+		/^Target-Arch:\s*(.+)\s*$/ and $target->{arch} = $1;
+		/^Target-Arch-Packages:\s*(.+)\s*$/ and $target->{arch_packages} = $1;
+		/^Target-Features:\s*(.+)\s*$/ and $target->{features} = [ split(/\s+/, $1) ];
+		/^Target-Depends:\s*(.+)\s*$/ and $target->{depends} = [ split(/\s+/, $1) ];
+		/^Target-Description:/ and $target->{desc} = get_multiline(*FILE);
+		/^Target-Optimization:\s*(.+)\s*$/ and $target->{cflags} = $1;
+		/^CPU-Type:\s*(.+)\s*$/ and $target->{cputype} = $1;
+		/^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1;
+		/^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1;
+		/^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1;
+		/^Default-Subtarget:\s*(.+)\s*$/ and $target->{def_subtarget} = $1;
+		/^Default-Packages:\s*(.+)\s*$/ and $target->{packages} = [ split(/\s+/, $1) ];
+		/^Target-Profile:\s*(.+)\s*$/ and do {
+			$profile = {
+				id => $1,
+				name => $1,
+				packages => []
+			};
+			push @{$target->{profiles}}, $profile;
+		};
+		/^Target-Profile-Name:\s*(.+)\s*$/ and $profile->{name} = $1;
+		/^Target-Profile-Packages:\s*(.*)\s*$/ and $profile->{packages} = [ split(/\s+/, $1) ];
+		/^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(*FILE);
+		/^Target-Profile-Config:/ and $profile->{config} = get_multiline(*FILE, "\t");
+		/^Target-Profile-Kconfig:/ and $profile->{kconfig} = 1;
+	}
+	close FILE;
+	foreach my $target (@target) {
+		if (@{$target->{subtargets}} > 0) {
+			$target->{profiles} = [];
+			next;
+		}
+		@{$target->{profiles}} > 0 or $target->{profiles} = [
+			{
+				id => 'Default',
+				name => 'Default',
+				packages => []
+			}
+		];
+	}
+	return @target;
+}
+
+sub clear_packages() {
+	%subdir = ();
+	%preconfig = ();
+	%package = ();
+	%srcpackage = ();
+	%category = ();
+	%features = ();
+	%overrides = ();
+}
+
+sub parse_package_metadata($) {
+	my $file = shift;
+	my $pkg;
+	my $feature;
+	my $makefile;
+	my $preconfig;
+	my $subdir;
+	my $src;
+	my $override;
+
+	open FILE, "<$file" or do {
+		warn "Cannot open '$file': $!\n";
+		return undef;
+	};
+	while (<FILE>) {
+		chomp;
+		/^Source-Makefile: \s*((.+\/)([^\/]+)\/Makefile)\s*$/ and do {
+			$makefile = $1;
+			$subdir = $2;
+			$src = $3;
+			$subdir =~ s/^package\///;
+			$subdir{$src} = $subdir;
+			$srcpackage{$src} = [];
+			$override = "";
+			undef $pkg;
+		};
+		/^Override: \s*(.+?)\s*$/ and do {
+			$override = $1;
+			$overrides{$src} = 1;
+		};
+		next unless $src;
+		/^Package:\s*(.+?)\s*$/ and do {
+			undef $feature;
+			$pkg = {};
+			$pkg->{src} = $src;
+			$pkg->{makefile} = $makefile;
+			$pkg->{name} = $1;
+			$pkg->{title} = "";
+			$pkg->{depends} = [];
+			$pkg->{mdepends} = [];
+			$pkg->{builddepends} = [];
+			$pkg->{buildtypes} = [];
+			$pkg->{subdir} = $subdir;
+			$pkg->{tristate} = 1;
+			$pkg->{override} = $override;
+			$package{$1} = $pkg;
+			push @{$srcpackage{$src}}, $pkg;
+		};
+		/^Feature:\s*(.+?)\s*$/ and do {
+			undef $pkg;
+			$feature = {};
+			$feature->{name} = $1;
+			$feature->{priority} = 0;
+		};
+		$feature and do {
+			/^Target-Name:\s*(.+?)\s*$/ and do {
+				$features{$1} or $features{$1} = [];
+				push @{$features{$1}}, $feature;
+			};
+			/^Target-Title:\s*(.+?)\s*$/ and $feature->{target_title} = $1;
+			/^Feature-Priority:\s*(\d+)\s*$/ and $feature->{priority} = $1;
+			/^Feature-Name:\s*(.+?)\s*$/ and $feature->{title} = $1;
+			/^Feature-Description:/ and $feature->{description} = get_multiline(\*FILE, "\t\t\t");
+			next;
+		};
+		next unless $pkg;
+		/^Version: \s*(.+)\s*$/ and $pkg->{version} = $1;
+		/^Title: \s*(.+)\s*$/ and $pkg->{title} = $1;
+		/^Menu: \s*(.+)\s*$/ and $pkg->{menu} = $1;
+		/^Submenu: \s*(.+)\s*$/ and $pkg->{submenu} = $1;
+		/^Submenu-Depends: \s*(.+)\s*$/ and $pkg->{submenudep} = $1;
+		/^Source: \s*(.+)\s*$/ and $pkg->{source} = $1;
+		/^License: \s*(.+)\s*$/ and $pkg->{license} = $1;
+		/^LicenseFiles: \s*(.+)\s*$/ and $pkg->{licensefiles} = $1;
+		/^Default: \s*(.+)\s*$/ and $pkg->{default} = $1;
+		/^Provides: \s*(.+)\s*$/ and do {
+			my @vpkg = split /\s+/, $1;
+			foreach my $vpkg (@vpkg) {
+				$package{$vpkg} or $package{$vpkg} = {
+					name => $vpkg,
+					vdepends => [],
+					src => $src,
+					subdir => $subdir,
+					makefile => $makefile
+				};
+				push @{$package{$vpkg}->{vdepends}}, $pkg->{name};
+			}
+		};
+		/^Menu-Depends: \s*(.+)\s*$/ and $pkg->{mdepends} = [ split /\s+/, $1 ];
+		/^Depends: \s*(.+)\s*$/ and $pkg->{depends} = [ split /\s+/, $1 ];
+		/^Conflicts: \s*(.+)\s*$/ and $pkg->{conflicts} = [ split /\s+/, $1 ];
+		/^Hidden: \s*(.+)\s*$/ and $pkg->{hidden} = 1;
+		/^Build-Variant: \s*([\w\-]+)\s*/ and $pkg->{variant} = $1;
+		/^Default-Variant: .*/ and $pkg->{variant_default} = 1;
+		/^Build-Only: \s*(.+)\s*$/ and $pkg->{buildonly} = 1;
+		/^Build-Depends: \s*(.+)\s*$/ and $pkg->{builddepends} = [ split /\s+/, $1 ];
+		/^Build-Depends\/(\w+): \s*(.+)\s*$/ and $pkg->{"builddepends/$1"} = [ split /\s+/, $2 ];
+		/^Build-Types:\s*(.+)\s*$/ and $pkg->{buildtypes} = [ split /\s+/, $1 ];
+		/^Feed:\s*(.+?)\s*$/ and $pkg->{feed} = $1;
+		/^Category: \s*(.+)\s*$/ and do {
+			$pkg->{category} = $1;
+			defined $category{$1} or $category{$1} = {};
+			defined $category{$1}->{$src} or $category{$1}->{$src} = [];
+			push @{$category{$1}->{$src}}, $pkg;
+		};
+		/^Description: \s*(.*)\s*$/ and $pkg->{description} = "\t\t $1\n". get_multiline(*FILE, "\t\t ");
+		/^Type: \s*(.+)\s*$/ and do {
+			$pkg->{type} = [ split /\s+/, $1 ];
+			undef $pkg->{tristate};
+			foreach my $type (@{$pkg->{type}}) {
+				$type =~ /ipkg/ and $pkg->{tristate} = 1;
+			}
+		};
+		/^Config:\s*(.*)\s*$/ and $pkg->{config} = "$1\n".get_multiline(*FILE, "\t");
+		/^Prereq-Check:/ and $pkg->{prereq} = 1;
+		/^Preconfig:\s*(.+)\s*$/ and do {
+			my $pkgname = $pkg->{name};
+			$preconfig{$pkgname} or $preconfig{$pkgname} = {};
+			if (exists $preconfig{$pkgname}->{$1}) {
+				$preconfig = $preconfig{$pkgname}->{$1};
+			} else {
+				$preconfig = {
+					id => $1
+				};
+				$preconfig{$pkgname}->{$1} = $preconfig;
+			}
+		};
+		/^Preconfig-Type:\s*(.*?)\s*$/ and $preconfig->{type} = $1;
+		/^Preconfig-Label:\s*(.*?)\s*$/ and $preconfig->{label} = $1;
+		/^Preconfig-Default:\s*(.*?)\s*$/ and $preconfig->{default} = $1;
+	}
+	close FILE;
+	return 1;
+}
+
+1;
diff --git a/scripts/mkits.sh b/scripts/mkits.sh
new file mode 100755
index 0000000..6b5100e
--- /dev/null
+++ b/scripts/mkits.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+#
+# Licensed under the terms of the GNU GPL License version 2 or later.
+#
+# Author: Peter Tyser <ptyser@xes-inc.com>
+#
+# U-Boot firmware supports the booting of images in the Flattened Image
+# Tree (FIT) format.  The FIT format uses a device tree structure to
+# describe a kernel image, device tree blob, ramdisk, etc.  This script
+# creates an Image Tree Source (.its file) which can be passed to the
+# 'mkimage' utility to generate an Image Tree Blob (.itb file).  The .itb
+# file can then be booted by U-Boot (or other bootloaders which support
+# FIT images).  See doc/uImage.FIT/howto.txt in U-Boot source code for
+# additional information on FIT images.
+#
+
+usage() {
+	echo "Usage: `basename $0` -A arch -C comp -a addr -e entry" \
+		"-v version -k kernel [-D name -d dtb] -o its_file"
+	echo -e "\t-A ==> set architecture to 'arch'"
+	echo -e "\t-C ==> set compression type 'comp'"
+	echo -e "\t-a ==> set load address to 'addr' (hex)"
+	echo -e "\t-e ==> set entry point to 'entry' (hex)"
+	echo -e "\t-v ==> set kernel version to 'version'"
+	echo -e "\t-k ==> include kernel image 'kernel'"
+	echo -e "\t-D ==> human friendly Device Tree Blob 'name'"
+	echo -e "\t-d ==> include Device Tree Blob 'dtb'"
+	echo -e "\t-o ==> create output file 'its_file'"
+	exit 1
+}
+
+while getopts ":A:a:C:D:d:e:k:o:v:" OPTION
+do
+	case $OPTION in
+		A ) ARCH=$OPTARG;;
+		a ) LOAD_ADDR=$OPTARG;;
+		C ) COMPRESS=$OPTARG;;
+		D ) DEVICE=$OPTARG;;
+		d ) DTB=$OPTARG;;
+		e ) ENTRY_ADDR=$OPTARG;;
+		k ) KERNEL=$OPTARG;;
+		o ) OUTPUT=$OPTARG;;
+		v ) VERSION=$OPTARG;;
+		* ) echo "Invalid option passed to '$0' (options:$@)"
+		usage;;
+	esac
+done
+
+# Make sure user entered all required parameters
+if [ -z "${ARCH}" ] || [ -z "${COMPRESS}" ] || [ -z "${LOAD_ADDR}" ] || \
+	[ -z "${ENTRY_ADDR}" ] || [ -z "${VERSION}" ] || [ -z "${KERNEL}" ] || \
+	[ -z "${OUTPUT}" ]; then
+	usage
+fi
+
+ARCH_UPPER=`echo $ARCH | tr '[:lower:]' '[:upper:]'`
+
+# Conditionally create fdt information
+if [ -n "${DTB}" ]; then
+	FDT="
+		fdt@1 {
+			description = \"${ARCH_UPPER} OpenWrt ${DEVICE} device tree blob\";
+			data = /incbin/(\"${DTB}\");
+			type = \"flat_dt\";
+			arch = \"${ARCH}\";
+			compression = \"none\";
+			hash@1 {
+				algo = \"crc32\";
+			};
+			hash@2 {
+				algo = \"sha1\";
+			};
+		};
+"
+fi
+
+# Create a default, fully populated DTS file
+DATA="/dts-v1/;
+
+/ {
+	description = \"${ARCH_UPPER} OpenWrt FIT (Flattened Image Tree)\";
+	#address-cells = <1>;
+
+	images {
+		kernel@1 {
+			description = \"${ARCH_UPPER} OpenWrt Linux-${VERSION}\";
+			data = /incbin/(\"${KERNEL}\");
+			type = \"kernel\";
+			arch = \"${ARCH}\";
+			os = \"linux\";
+			compression = \"${COMPRESS}\";
+			load = <${LOAD_ADDR}>;
+			entry = <${ENTRY_ADDR}>;
+			hash@1 {
+				algo = \"crc32\";
+			};
+			hash@2 {
+				algo = \"sha1\";
+			};
+		};
+
+${FDT}
+
+	};
+
+	configurations {
+		default = \"config@1\";
+		config@1 {
+			description = \"OpenWrt\";
+			kernel = \"kernel@1\";
+			fdt = \"fdt@1\";
+		};
+	};
+};"
+
+# Write .its file to disk
+echo "$DATA" > ${OUTPUT}
diff --git a/scripts/om-fwupgradecfg-gen.sh b/scripts/om-fwupgradecfg-gen.sh
new file mode 100644
index 0000000..fab1582
--- /dev/null
+++ b/scripts/om-fwupgradecfg-gen.sh
@@ -0,0 +1,73 @@
+#/bin/sh
+#
+# Copyright (C) 2011 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+usage() {
+	echo "Usage: $0 <OM2P|OM5P|MR600|MR900|MR1750> <out file path> <kernel path> <rootfs path>"
+	rm -f $CFG_OUT
+	exit 1
+}
+
+[ "$#" -lt 4 ] && usage
+
+CE_TYPE=$1
+CFG_OUT=$2
+KERNEL_PATH=$3
+ROOTFS_PATH=$4
+
+case $CE_TYPE in
+	OM2P)
+		MAX_PART_SIZE=7168
+		KERNEL_FLASH_ADDR=0x1c0000
+		FLASH_BS=262144
+		MD5_SKIP_BLOCKS=1
+		;;
+	OM5P|MR600|MR900|MR1750)
+		MAX_PART_SIZE=7808
+		KERNEL_FLASH_ADDR=0xb0000
+		FLASH_BS=65536
+		MD5_SKIP_BLOCKS=4
+		;;
+	*)
+		echo "Error - unsupported ce type: $CE_TYPE"
+		exit 1
+		;;
+esac
+
+CHECK_BS=65536
+
+KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
+KERNEL_MD5=$(md5=$(md5sum $KERNEL_PATH); echo ${md5%% *})
+KERNEL_PART_SIZE=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
+
+ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE * 1024))); printf "0x%x" $addr)
+ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
+ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
+ROOTFS_MD5=$(md5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | md5sum); echo ${md5%% *})
+ROOTFS_MD5_FULL=$(md5=$(md5sum $ROOTFS_PATH); echo ${md5%% *})
+ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
+ROOTFS_PART_SIZE=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE))
+
+cat << EOF > $CFG_OUT
+[vmlinux]
+filename=kernel
+md5sum=$KERNEL_MD5
+filemd5sum=$KERNEL_MD5
+flashaddr=$KERNEL_FLASH_ADDR
+checksize=0x0
+cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
+cmd_fail=reset
+
+[rootfs]
+filename=rootfs
+md5sum=$ROOTFS_MD5
+filemd5sum=$ROOTFS_MD5_FULL
+flashaddr=$ROOTFS_FLASH_ADDR
+checksize=$ROOTFS_CHECK_SIZE
+cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
+cmd_fail=reset
+EOF
diff --git a/scripts/openbsd.sh b/scripts/openbsd.sh
new file mode 100644
index 0000000..dc9f4f7
--- /dev/null
+++ b/scripts/openbsd.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+ver=$(uname -r)
+arch=$(uname -m)
+echo "Preparing OpenBSD $arch $ver for OpenWrt"
+PKG_PATH="http://ftp.openbsd.org/pub/OpenBSD/${ver}/packages/${arch}/"
+export PKG_PATH
+pkg_add -v gmake
+pkg_add -v findutils
+pkg_add -v coreutils
+pkg_add -v gdiff
+pkg_add -v rsync--
+pkg_add -v git
+pkg_add -v bash
+pkg_add -v unzip
+pkg_add -v wget
+pkg_add -v gtar--
+pkg_add -v ggrep
+pkg_add -v gawk
+pkg_add -v gsed
+pkg_add -v xz
+pkg_add -v apr-util--
+pkg_add -v cyrus-sasl--
+pkg_add -v subversion
+pkg_add -v gnugetopt
diff --git a/scripts/pad_image b/scripts/pad_image
new file mode 100755
index 0000000..14f1499
--- /dev/null
+++ b/scripts/pad_image
@@ -0,0 +1,100 @@
+#!/bin/bash
+
+function usage {
+  echo "Usage: prepare_image image_type kernel_image rootfs_image header_size"
+  echo "Padd root and kernel image to the correct size and append the jffs2 start marker as needed"
+  exit 1
+}
+
+function pad_file {
+	echo "Padding $1 to size $2"
+	dd if=$1 of=$1.paddingtempfile bs=$2 count=1 conv=sync &> /dev/null
+	mv $1.paddingtempfile $1
+}
+
+#filesize filestart padding
+function calc_pad {
+	[  $((($1 + $2) & ($3 - 1))) == 0 ] && {
+		echo $1
+		return 0
+        }
+	echo $(((($1 + $2) | ($3 - 1)) + 1 - $2))
+}
+
+function prep_squash {
+	echo "kernel_size: $kernel_size"
+	echo "header_size: $header_size"
+	kernel_pad_size=$(calc_pad $kernel_size $header_size 32)
+	kernel_end=$(($header_size + $kernel_pad_size))
+	pad_file $kernel_image $kernel_pad_size
+
+	#4k
+	rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 4096)
+	pad_file $rootfs_image $rootfs_pad_size
+	echo -ne '\xde\xad\xc0\xde' >> $rootfs_image
+	
+	#8k
+	rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 8192)
+	[ $rootfs_pad_size == rootfs_old_padsize ] || {
+		pad_file $rootfs_image $rootfs_pad_size
+		rootfs_old_padsize=$rootfs_pad_size
+		echo -ne '\xde\xad\xc0\xde' >> $rootfs_image
+	}
+
+	#64k
+	rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 65536)
+	[ $rootfs_pad_size == rootfs_old_padsize ] || {
+		pad_file $rootfs_image $rootfs_pad_size
+		rootfs_old_padsize=$rootfs_pad_size
+		echo -ne '\xde\xad\xc0\xde' >> $rootfs_image
+	}
+
+	#128k
+	rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 131072)
+	[ $rootfs_pad_size == rootfs_old_padsize ] || {
+		pad_file $rootfs_image $rootfs_pad_size
+		rootfs_old_padsize=$rootfs_pad_size
+		echo -ne '\xde\xad\xc0\xde' >> $rootfs_image
+	}
+	
+}
+
+function prep_jffs2 {
+	kernel_pad_size=$(calc_pad $kernel_size $header_size $1)
+	pad_file $kernel_image $kernel_pad_size
+}
+
+image_type=$1
+kernel_image=$2
+rootfs_image=$3
+header_size=$4
+
+if [ -z "$image_type" ] || [ -z "$rootfs_image" ] || [ -z "$kernel_image" ] || [ -z "$header_size" ]; then
+	usage
+fi
+
+if [ ! -e "$rootfs_image" ] || [ -z "$kernel_image" ]; then
+	echo "input file not found"
+	exit 1
+fi
+
+kernel_size=$(stat -c "%s" "$kernel_image")
+rootfs_size=$(stat -c "%s" "$rootfs_image")
+
+if [ $kernel_size == 0 ] || [ $rootfs_size == 0 ]; then
+	echo "kernel or rootfs empty"
+	exit 1
+fi
+
+case $image_type in
+	squashfs )
+		prep_squash ;;
+	jffs2-64k )
+		prep_jffs2 65536 ;;
+	jffs2-128k )
+		prep_jffs2 131072 ;;
+	* )
+		echo "Unknown image type"
+		exit 1 ;;
+esac
+
diff --git a/scripts/patch-kernel.sh b/scripts/patch-kernel.sh
new file mode 100755
index 0000000..c2b7e72
--- /dev/null
+++ b/scripts/patch-kernel.sh
@@ -0,0 +1,54 @@
+#! /bin/sh
+# A little script I whipped up to make it easy to
+# patch source trees and have sane error handling
+# -Erik
+#
+# (c) 2002 Erik Andersen <andersen@codepoet.org>
+
+# Set directories from arguments, or use defaults.
+targetdir=${1-.}
+patchdir=${2-../kernel-patches}
+patchpattern=${3-*}
+
+if [ ! -d "${targetdir}" ] ; then
+    echo "Aborting.  '${targetdir}' is not a directory."
+    exit 1
+fi
+if [ ! -d "${patchdir}" ] ; then
+    echo "Aborting.  '${patchdir}' is not a directory."
+    exit 1
+fi
+    
+for i in ${patchdir}/${patchpattern} ; do 
+    case "$i" in
+	*.gz)
+	type="gzip"; uncomp="gunzip -dc"; ;; 
+	*.bz)
+	type="bzip"; uncomp="bunzip -dc"; ;; 
+	*.bz2)
+	type="bzip2"; uncomp="bunzip2 -dc"; ;; 
+	*.zip)
+	type="zip"; uncomp="unzip -d"; ;; 
+	*.Z)
+	type="compress"; uncomp="uncompress -c"; ;; 
+	*)
+	type="plaintext"; uncomp="cat"; ;; 
+    esac
+    [ -d "${i}" ] && echo "Ignoring subdirectory ${i}" && continue	
+    echo ""
+    echo "Applying ${i} using ${type}: " 
+    ${uncomp} ${i} | ${PATCH:-patch} -f -p1 -d ${targetdir}
+    if [ $? != 0 ] ; then
+        echo "Patch failed!  Please fix $i!"
+	exit 1
+    fi
+done
+
+# Check for rejects...
+if [ "`find $targetdir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ] ; then
+    echo "Aborting.  Reject files found."
+    exit 1
+fi
+
+# Remove backup files
+find $targetdir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
diff --git a/scripts/patch-specs.sh b/scripts/patch-specs.sh
new file mode 100755
index 0000000..3307b6b
--- /dev/null
+++ b/scripts/patch-specs.sh
@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+
+DIR="$1"
+
+if [ -d "$DIR" ]; then
+	DIR="$(cd "$DIR"; pwd)"
+else
+	echo "Usage: $0 toolchain-dir"
+	exit 1
+fi
+
+echo -n "Locating cpp ... "
+for bin in bin usr/bin usr/local/bin; do
+	for cmd in "$DIR/$bin/"*-cpp; do
+		if [ -x "$cmd" ]; then
+			echo "$cmd"
+			CPP="$cmd"
+			break
+		fi
+	done
+done
+
+if [ ! -x "$CPP" ]; then
+	echo "Can't locate a cpp executable in '$DIR' !"
+	exit 1
+fi
+
+patch_specs() {
+	local found=0
+
+	for lib in $(STAGING_DIR="$DIR" "$CPP" -x c -v /dev/null 2>&1 | sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'); do
+		if [ -d "$lib" ]; then
+			grep -qs "STAGING_DIR" "$lib/specs" && rm -f "$lib/specs"
+			if [ $found -lt 1 ]; then
+				echo -n "Patching specs ... "
+				STAGING_DIR="$DIR" "$CPP" -dumpspecs | awk '
+					mode ~ "link" {
+						sub("%{L.}", "%{L*} -L %:getenv(STAGING_DIR /usr/lib) -rpath-link %:getenv(STAGING_DIR /usr/lib)")
+					}
+					mode ~ "cpp" {
+						$0 = $0 " -idirafter %:getenv(STAGING_DIR /usr/include)"
+					}
+					{
+						print $0
+						mode = ""
+					}
+					/^\*cpp:/ {
+						mode = "cpp"
+					}
+					/^\*link.*:/ {
+						mode = "link"
+					}
+				' > "$lib/specs"
+				echo "ok"
+				found=1
+			fi
+		fi
+	done
+
+	[ $found -gt 0 ]
+	return $?
+}
+
+
+VERSION="$(STAGING_DIR="$DIR" "$CPP" --version | sed -ne 's/^.* (.*) //; s/ .*$//; 1p')"
+VERSION="${VERSION:-unknown}"
+
+case "${VERSION##* }" in
+	2.*|3.*|4.0.*|4.1.*|4.2.*)
+		echo "The compiler version does not support getenv() in spec files."
+		echo -n "Wrapping binaries instead ... "
+
+		if "${0%/*}/ext-toolchain.sh" --toolchain "$DIR" --wrap "${CPP%/*}"; then
+			echo "ok"
+			exit 0
+		else
+			echo "failed"
+			exit $?
+		fi
+	;;
+	*)
+		if patch_specs; then
+			echo "Toolchain successfully patched."
+			exit 0
+		else
+			echo "Failed to locate library directory!"
+			exit 1
+		fi
+	;;
+esac
diff --git a/scripts/redboot-script.pl b/scripts/redboot-script.pl
new file mode 100755
index 0000000..123ebe3
--- /dev/null
+++ b/scripts/redboot-script.pl
@@ -0,0 +1,111 @@
+#!/usr/bin/perl
+#
+# Script for generating redboot configs, based on brcmImage.pl
+#
+# Copyright (C) 2015 Álvaro Fernández Rojas <noltari@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+
+use strict;
+use Getopt::Std;
+use File::stat;
+
+my $version = "0.1";
+my %arg = (
+	o => 'redboot.script',
+	s => 0x1000,
+	f => 0xbe430000,
+	a => 0x80010000,
+	l => 0x7c0000,
+	t => 20,
+);
+my $prog = $0;
+$prog =~ s/^.*\///;
+getopts("r:k:o:s:f:a:l:t:vh", \%arg);
+
+die "usage: $prog ~opts~
+
+  -r <file>	: input rootfs file
+  -k <file>	: input kernel file
+  -o <file>	: output image file, default $arg{o}
+  -s <size_kb>	: redboot script size, default ".sprintf('%d', parse_num($arg{s}))."
+  -f <baseaddr>	: flash base, default ".sprintf('0x%x', parse_num($arg{f}))."
+  -a <loadaddr>	: Kernel load address, default ".sprintf('0x%x', parse_num($arg{a}))."
+  -l <linux_kb>	: linux partition size, default ".sprintf('0x%x', parse_num($arg{l}))."
+  -t <timeout> 	: redboot script timeout, default ".sprintf('%d', parse_num($arg{t}))."
+  -v		: be more verbose
+  -h		: help, version $version
+
+EXAMPLES:
+    $prog -k kern -r rootfs
+" if $arg{h} || !$arg{k} || !$arg{r};
+
+sub parse_num
+{
+	my $num = @_[0];
+	if (index(lc($num), lc("0x")) == 0) {
+		return hex($num);
+	} else {
+		return $num + 0;
+	}
+}
+
+sub gen_script
+{
+	my $kernel_off = parse_num($arg{s});
+	my $kernel_addr = parse_num($arg{f});
+	my $kernel_len = stat($arg{k})->size;
+
+	my $rootfs_off = $kernel_off + $kernel_len;
+	my $rootfs_addr = $kernel_addr + $kernel_len;
+	my $rootfs_len = parse_num($arg{l}) - $kernel_len;
+	my $rootfs_size = stat($arg{r})->size;
+
+	my $load_addr = parse_num($arg{a});
+
+	my $timeout = parse_num($arg{t});
+
+	if ($arg{v}) {
+		printf "kernel_off: 0x%x(%u)\n", $kernel_off, $kernel_off;
+		printf "kernel_addr: 0x%x(%u)\n", $kernel_addr, $kernel_addr;
+		printf "kernel_len: 0x%x(%u)\n", $kernel_len, $kernel_len;
+
+		printf "rootfs_off: 0x%x(%u)\n", $rootfs_off, $rootfs_off;
+		printf "rootfs_addr: 0x%x(%u)\n", $rootfs_addr, $rootfs_addr;
+		printf "rootfs_len: 0x%x(%u)\n", $rootfs_len, $rootfs_len;
+		printf "rootfs_size: 0x%x(%u)\n", $rootfs_size, $rootfs_size;
+	}
+
+	open(FO, ">$arg{o}");
+	printf FO "fis init -f\n";
+	printf FO "\n";
+	printf FO "fconfig boot_script true\n";
+	printf FO "fconfig boot_script_data\n";
+	printf FO "fis load -b 0x%x -d kernel\n", $load_addr;
+	printf FO "exec -c \"noinitrd\" 0x%x\n", $load_addr;
+	printf FO "\n";
+	printf FO "fconfig boot_script_timeout %d\n", $timeout;
+	printf FO "\n";
+	printf FO "fis create -o 0x%x -f 0x%x -l 0x%x kernel\n", $kernel_off, $kernel_addr, $kernel_len;
+	printf FO "\n";
+	printf FO "fis create -o 0x%x -s 0x%x -f 0x%x -l 0x%x rootfs\n", $rootfs_off, $rootfs_size, $rootfs_addr, $rootfs_len;
+	printf FO "\n";
+	printf FO "reset\n";
+	close FO;
+}
+
+# MAIN
+gen_script();
diff --git a/scripts/relink-lib.sh b/scripts/relink-lib.sh
new file mode 100755
index 0000000..5367b70
--- /dev/null
+++ b/scripts/relink-lib.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+[ $# -lt 4 -o -z "$1" -o -z "$2" -o -z "$3" -o -z "$4" ] && {
+	echo "Usage: $0 <cross> <reference> <pic .a> <destination>"
+	exit 1
+}
+
+cross="$1"; shift
+ref="$1"; shift
+pic="$1"; shift
+dest="$1"; shift
+
+SYMBOLS="$(${cross}nm "$ref" | grep -E '........ [TW] ' | awk '$3 {printf "-u%s ", $3}')"
+set -x
+${cross}gcc -nostdlib -nostartfiles -shared -Wl,--gc-sections -o "$dest" $SYMBOLS "$pic" "$@"
diff --git a/scripts/remote-gdb b/scripts/remote-gdb
new file mode 100755
index 0000000..cd59033
--- /dev/null
+++ b/scripts/remote-gdb
@@ -0,0 +1,89 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use FindBin '$Bin';
+use File::Temp 'tempfile';
+
+@ARGV == 2 || do {
+	die "Usage: $0 <corefile|host:port> <executable>\n";
+	exit 1;
+};
+
+if( opendir SD, "$Bin/../staging_dir" )
+{
+	my ( $tid, $arch, $libc, @arches );
+
+	if( $ARGV[1] =~ m!\btarget-(.+?)_(([^/_]+libc|musl)[^/]+)\b!i )
+	{
+		print("Using target $1 ($2)\n");
+		($arch, $libc) = ($1, $2);
+	}
+	else
+	{
+		# Find arches
+		print("Choose target:\n");
+
+		while( defined( my $e = readdir SD ) )
+		{
+			if( -d "$Bin/../staging_dir/$e" && $e =~ /^target-(.+?)_(([^_]+libc|musl).+)/i )
+			{
+				push @arches, [ $1, $2 ];
+				printf(" %2d) %s (%s)\n", @arches + 0, $1, $2);
+			}
+		}
+
+		if( @arches > 1 )
+		{
+			# Query arch
+			do {
+				print("Target? > ");
+				chomp($tid = <STDIN>);
+			} while( !defined($tid) || $tid !~ /^\d+$/ || $tid < 1 || $tid > @arches );
+
+			($arch, $libc) = @{$arches[$tid-1]};
+		}
+		else
+		{
+			($arch, $libc) = @{$arches[0]};
+		}
+	}
+
+	closedir SD;
+
+	# Find gdb
+	my ($gdb) = glob("$Bin/../staging_dir/toolchain-${arch}_*_${libc}*/bin/*-gdb");
+	if( defined($gdb) && -x $gdb )
+	{
+		my ( $fh, $fp ) = tempfile();
+
+		# Find sysroot
+		my ($sysroot) = glob("$Bin/../staging_dir/target-${arch}_${libc}/root-*/");
+
+		print $fh "set sysroot $sysroot\n" if $sysroot;
+		my $cmd = "target extended-remote";
+		-f $ARGV[0] and $cmd = "core-file";
+		print $fh "$cmd $ARGV[0]\n";
+
+		# History settings
+		print $fh "set history filename $Bin/../tmp/.gdb_history\n";
+		print $fh "set history size 100000000\n";
+		print $fh "set history save on\n";
+
+		my $file = -f "$sysroot/$ARGV[1]" ? "$sysroot/$ARGV[1]" : $ARGV[1];
+		system($gdb, '-x', $fp, $file);
+
+		close($fh);
+		unlink($fp);
+	}
+	else
+	{
+		print("No gdb found! Make sure that CONFIG_GDB is set!\n");
+		exit(1);
+	}
+}
+else
+{
+	print("No staging_dir found! You need to compile at least once!\n");
+	exit(1);
+}
diff --git a/scripts/rstrip.sh b/scripts/rstrip.sh
new file mode 100755
index 0000000..4e4232d
--- /dev/null
+++ b/scripts/rstrip.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+# 
+# Copyright (C) 2006 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+SELF=${0##*/}
+
+[ -z "$STRIP" ] && {
+  echo "$SELF: strip command not defined (STRIP variable not set)"
+  exit 1
+}
+
+TARGETS=$*
+
+[ -z "$TARGETS" ] && {
+  echo "$SELF: no directories / files specified"
+  echo "usage: $SELF [PATH...]"
+  exit 1
+}
+
+find $TARGETS -type f -a -exec file {} \; | \
+  sed -n -e 's/^\(.*\):.*ELF.*\(executable\|relocatable\|shared object\).*,.* stripped/\1:\2/p' | \
+(
+  IFS=":"
+  while read F S; do
+    echo "$SELF: $F: $S"
+	[ "${S}" = "relocatable" ] && {
+		eval "$STRIP_KMOD $F"
+	} || {
+		b=$(stat -c '%a' $F)
+		[ -z "$PATCHELF" ] || [ -z "$TOPDIR" ] || {
+			old_rpath="$($PATCHELF --print-rpath $F)"; new_rpath=""
+			for path in $old_rpath; do
+				case "$path" in
+					/lib/[^/]*|/usr/lib/[^/]*|\$ORIGIN/*) new_rpath="${new_rpath:+$new_rpath:}$path" ;;
+					*) echo "$SELF: $F: removing rpath $path" ;;
+				esac
+			done
+			[ "$new_rpath" = "$old_rpath" ] || $PATCHELF --set-rpath "$new_rpath" $F
+		}
+		eval "$STRIP $F"
+		a=$(stat -c '%a' $F)
+		[ "$a" = "$b" ] || chmod $b $F
+	}
+  done
+  true
+)
diff --git a/scripts/slugimage.pl b/scripts/slugimage.pl
new file mode 100755
index 0000000..deac6ac
--- /dev/null
+++ b/scripts/slugimage.pl
@@ -0,0 +1,1217 @@
+#!/usr/bin/env perl
+# 
+# SlugImage : Manipulate NSLU2 firmware images
+#             Dwayne Fontenot (jacques)
+#             Rod Whitby (rwhitby)
+#	      www.nslu2-linux.org
+#
+# Copyright (c) 2004, 2006, Dwayne Fontenot & Rod Whitby
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 
+# Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# Neither the name of the NSLU2-Linux Development Team nor the names
+# of its contributors may be used to endorse or promote products
+# derived from this software without specific prior written
+# permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+use strict;
+use warnings;
+
+use Getopt::Long qw(:config no_ignore_case);
+use POSIX qw(tmpnam);
+
+my($debug) = 0;
+my($quiet) = 0;
+my($flash_start)    = 0x50000000;
+my($flash_len)      = 0x00800000;
+my($block_size)     = 0x00020000;
+my($kernel_offset)  = 0x00060000;
+my($kernel_size)    = 0x00100000;
+my($ramdisk_offset) = 0x00160000;
+my(@cleanup);
+
+# The last 70 bytes of the SercommRedBootTrailer (i.e. excluding MAC
+# address).  Needed to create an image with an empty RedBoot partition
+# since the Sercomm upgrade tool checks for this trailer.
+# http://www.nslu2-linux.org/wiki/Info/SercommRedBootTrailer
+my @sercomm_redboot_trailer = (0x4573, 0x4372, 0x4d6f, 0x006d, 0x0001,
+       0x0400, 0x3170, 0x5895, 0x0010, 0x0000, 0x0000, 0x0000, 0x0000,
+       0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+       0x0000, 0x0000, 0x0001, 0x0000, 0x0000, 0x0000, 0x0003, 0x2300,
+       0x0063, 0x0000, 0x7320, 0x7245, 0x6f43, 0x6d4d);
+
+# There's a 16 byte Sercomm trailer at the end of the flash. It is used
+# by RedBoot to detect a Sercomm flash layout and to configure the
+# Sercomm upgrade system.
+# http://www.nslu2-linux.org/wiki/Info/SercommFlashTrailer
+my @sercomm_flash_trailer = (0x0100, 0x0000, 0x6323, 0xf790, 0x5265,
+                             0x4f63, 0x4d6d, 0xb400);
+
+# Take $data, and pad it out to $total_len bytes, appending 0xff's.
+sub padBytes {
+    my($data,$total_len) = @_;
+
+    # 0xFF is used to pad, as it's the erase value of the flash.
+    my($pad_char) = pack("C",0xff);
+    my($pad_len) = $total_len - length($data);
+
+    # A request for negative padding is indicative of a logic error ...
+    if (length($data) > $total_len) {
+	die sprintf("padBytes error: data (%d) is longer than total_len (%d)", length($data), $total_len);
+    }
+
+    return $data . ($pad_char x $pad_len);
+}
+
+# Return the next multiple of block_size larger than or equal to $data_len.
+sub paddedSize {
+    my($data_len) = @_;
+
+    use integer;
+    return (($data_len - 1) / $block_size) * $block_size + $block_size;
+}
+
+# Return the number of block_size blocks required to hold $data_len.
+sub numBlocks {
+    my($data_len) = @_;
+
+    use integer;
+    return (($data_len - 1) / $block_size) + 1;
+}
+
+# Pack the name, address, size and optional skip regions of a partition entry into binary form.
+sub createPartitionEntry {
+    my($name, $flash_base, $size, $skips) = @_;
+    my $entry;
+
+    my($zero_long) = 0x0000;
+
+    # Pack the partition entry according to the format that RedBoot (and the MTD partition parsing code) requires.
+    $entry = pack("a16N5x212N2",$name,$flash_base,$zero_long,$size,$zero_long,$zero_long,$zero_long,$zero_long);
+
+    # Optionally put a skip header into the padding area.
+    if (defined $skips) {
+	my $i = scalar(@$skips);
+	foreach my $region (@$skips) {
+	    substr($entry, -8 - 12*$i, 12) =
+		pack("a4N2", "skip", $region->{'offset'}, $region->{'size'});
+	    $i--;
+	}
+    }
+
+    return $entry;
+}
+
+# Parse partition entry and return anon array ref [$name, $offset, $size, $skip] or return 0 on partition terminator.
+sub parsePartitionEntry {
+    my($partition_entry) = @_;
+
+    my($entry_len) = 0x100;
+    length($partition_entry) eq $entry_len or die "parsePartitionEntry: partition entry length is not $entry_len!\n";
+
+    # Unpack the partition table entry, saving those values in which we are interested.
+    my($name, $flash_base, $size, $dummy_long, $padding, $skips);
+    ($name, $flash_base, $dummy_long, $size, $dummy_long, $dummy_long, $padding, $dummy_long, $dummy_long) =
+	unpack("a16N5a212N2",$partition_entry);
+
+    # A partition entry starting with 0xFF terminates the table.
+    if (unpack("C", $name) eq 0xff) {
+	# %%% FIXME: This should only skip, not terminate. %%%
+	$debug and print "Found terminator for <FIS directory>\n";
+	return 0;
+    }
+
+    # Remove trailing nulls from the partition name.
+    $name =~ s/\000+//;
+
+    # Extract the skip regions out of the padding area.
+    $padding =~ s/^\000+//;
+    $padding =~ s/\000*skip(........)\000*/$1/g;
+    $padding =~ s/\000+$//;
+
+    # Store the skip regions in an array for later use.
+    while (length($padding)) {
+	my $region = {};
+	($region->{'offset'}, $region->{'size'}) =
+	    unpack("N2", $padding);
+	$debug and printf("Found skip region at 0x%05X, size 0x%05X\n",
+			  $region->{'offset'}, $region->{'size'});
+	push(@$skips, $region);
+	$padding = substr($padding,8);
+    }
+
+    return [$name, $flash_base - $flash_start, $size, $skips];
+}
+
+# Return partition table from data is one exists, otherwise return 0.
+sub findPartitionTable {
+    my($data_buf) = @_;
+
+    unpack("a7", $data_buf) eq 'RedBoot' or return 0;
+    return substr($data_buf, 0, 0x1000)
+}
+
+# Parse partition table and return array of anonymous array references ([$name, $offset, $size, $skips], ...).
+sub parsePartitionTable {
+    my($partition_table) = @_;
+
+    my(@partitions, $fields_ref);
+    my($entry_len) = 0x100;
+    my($partition_count) = 0;
+
+    # Loop through the fixed size partition table entries, and store the entries in @partitions.
+    # %%% FIXME: This doesn't handle the case of a completely full partition table. %%%
+    while ($fields_ref = parsePartitionEntry(substr($partition_table, $partition_count * $entry_len, $entry_len))) {
+	$debug and printf("Found <%s> at 0x%08X (%s)%s\n", $fields_ref->[0], $fields_ref->[1],
+			  ($fields_ref->[2] >= $block_size ?
+			   sprintf("%d blocks", numBlocks($fields_ref->[2])) :
+			   sprintf("0x%05X bytes", $fields_ref->[2])),
+			  (defined $fields_ref->[3] ?
+			   sprintf(" [%s]",
+				   join(", ",
+					map { sprintf("0x%05X/0x%05X", $_->{'offset'},$_->{'size'}) }
+					@{$fields_ref->[3]})) :
+			   ""));
+	$partitions[$partition_count++] = $fields_ref;
+    }
+    return(@partitions);
+}
+
+# Create an empty jffs2 block.
+sub jffs2Block {
+    return padBytes(pack("N3", 0x19852003, 0x0000000c, 0xf060dc98), $block_size);
+}
+
+# Write out $data to $filename,
+sub writeOut {
+    my($data, $filename) = @_;
+
+    open FILE,">$filename" or die "Can't open file \"$filename\": $!\n";
+
+    if (defined($data)) { print FILE $data;}
+
+    close FILE or die "Can't close file \"$filename\": $!\n";
+}
+
+# Not used at the moment.
+sub trailerData {
+    my($product_id)       = 0x0001;
+    my($protocol_id)      = 0x0000;
+    my($firmware_version) = 0x2325;
+    my($unknown1)         = 0x90f7;
+    my($magic_number)     = 'eRcOmM';
+    my($unknown2)         = 0x00b9;
+
+    return pack("n4a6n",$product_id,$protocol_id,$firmware_version,$unknown1,$magic_number,$unknown2);
+}
+
+# Print the contents of the Sercomm RedBoot trailer.
+sub printRedbootTrailer {
+    my($redboot_data) = @_;
+
+    my($correct_redboot_len) = 0x40000;
+    my($redboot_data_len) = length($redboot_data);
+
+    if ($redboot_data_len != $correct_redboot_len) {
+	printf("Redboot length (0x%08X) is not 0x%08X\n", $redboot_data_len, $correct_redboot_len);
+	return;
+    }
+
+    # The trailer is the last 80 bytes of the redboot partition.
+    my($redboot_trailer) = substr($redboot_data, -80);
+
+    writeOut($redboot_trailer, 'RedbootTrailer');
+
+    my($mac_addr0, $mac_addr1, $mac_addr2, $unknown, $prefix, $ver_ctrl, $down_ctrl, $hid, $hver, $prodid, $prodidmask,
+       $protid, $protidmask, $funcid, $funcidmask, $fver, $cseg, $csize, $postfix) =
+	   unpack("n3Na7n2a32n10a7",$redboot_trailer);
+
+    printf("MAC address is %04X%04X%04X\n", $mac_addr0, $mac_addr1, $mac_addr2);
+    printf("unknown: %08X\n", $unknown);
+    printf("%s:%04X:%04X:%s\n", $prefix, $ver_ctrl, $down_ctrl, $postfix);
+    printf("VerControl: %04X\nDownControl: %04X\n", $ver_ctrl, $down_ctrl);
+    printf("hid: %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X %04X\n", unpack("n16", $hid));
+    printf("Hver: %04X\nProdID: %04X\nProtID: %04X\nFuncID: %04X\nFver: %04X\nCseg: %04X\nCsize: %04X\n",
+	   $hver, $prodid, $protid, $funcid, $fver, $cseg, $csize);
+}
+
+# remove the optional Loader partition
+sub removeOptionalLoader {
+    my($partitions_ref) = @_;
+
+    my $index;
+    my $count = 0;
+    map {
+	if (not defined $index) {
+	    if ($_->{'name'} eq "Loader") {
+		$index = $count;
+	    }
+	    $count++;
+	}
+    } @$partitions_ref;
+    
+    defined $index or die "Cannot find the Loader partition\n";
+
+    splice(@$partitions_ref, $index, 1);
+
+    # Set fixed offsets and sizes for Kernel and Ramdisk
+    map {
+	if ($_->{'name'} eq 'Kernel') {
+	    $_->{'offset'}   = $kernel_offset;
+	    $_->{'size'}     = $kernel_size;
+	    $_->{'variable'} = 0;
+	}
+	if ($_->{'name'} eq 'Ramdisk') {
+	    $_->{'offset'}   = $ramdisk_offset;
+	}
+    } @$partitions_ref;
+
+    return;
+}
+
+
+# populate @partitions based on the firmware's partition table
+sub spliceFirmwarePartitions {
+    my($firmware_buf, $partitions_ref) = @_;
+
+    # we know that partition table, if it exists, begins at start of 'FIS directory' and has max length 0x1000
+    my($partition_table);
+    map {
+	$_->{'name'} eq 'FIS directory' and
+	    $partition_table = findPartitionTable(substr($firmware_buf, $_->{'offset'}, $_->{'size'}));
+    } @$partitions_ref;
+
+    # return 0 here if no partition table in FIS directory
+    return if not $partition_table;
+
+    my @new_partitions = parsePartitionTable($partition_table);
+
+    # Remove the optional second stage bootloader if it is not found in the FIS directory.
+    if (not grep { $_->[0] eq 'Loader' } @new_partitions) {
+	removeOptionalLoader($partitions_ref);
+    }
+
+    my($partition_count) = 0;
+    my($splice) = 0;
+    map {
+
+	# Skip pseudo partitions.
+	while (($partition_count < scalar(@$partitions_ref)) and
+	       $partitions_ref->[$partition_count]->{'pseudo'}) {
+	    $debug and printf("Skipped <%s> (pseudo partition)\n", $partitions_ref->[$partition_count]->{'name'});
+	    $partition_count++;
+	}
+
+	# If we are in a variable area, and we haven't reached the end of it,
+	# then splice in another partition for use by the later code.
+	if ($splice and ($partitions_ref->[$partition_count]->{'name'} ne $_->[0])) {
+	    $debug and printf("Splicing new partition <%s> before <%s>\n",
+			      $_->[0], $partitions_ref->[$partition_count]->{'name'});
+	    splice(@{$partitions_ref}, $partition_count, 0, ({'name' => "",'variable'=>1,'header'=>0}));
+	}
+
+	my $partition = $partitions_ref->[$partition_count];
+
+	# Variable partitions can be overridden by the real FIS directory
+	if ($partition->{'variable'}) {
+
+	    # Only override the filename if the partition name is not set or doesn't match
+	    if ($partition->{'name'} ne $_->[0]) {
+
+		if (length($partition->{'name'})) {
+		    $debug and printf("Overwriting <%s> with <%s>\n",
+				      $partitions_ref->[$partition_count]->{'name'}, $_->[0]);
+		}
+
+		$partition->{'name'} = $_->[0];
+		$partition->{'file'} = $_->[0];
+	    }
+
+	    # Set the offset, size and skips based on the real partition table
+	    $partition->{'offset'} = $_->[1];
+	    $partition->{'size'}   = $_->[2];
+	    $partition->{'skips'}  = $_->[3];
+
+	    $debug and printf("Locating <%s> at 0x%08X (%s)\n",
+			      $partition->{'name'}, $partition->{'offset'},
+			      ($partition->{'size'} >= $block_size ?
+			       sprintf("%d blocks", numBlocks($partition->{'size'})) :
+			       sprintf("0x%05X bytes", $partition->{'size'})));
+
+	    $splice = 1;
+	}
+
+	# Fixed partitions cannot be overridden
+	else {
+	    ($partition->{'name'} eq $_->[0]) or
+		die "Unexpected partition <",$_->[0],"> (expecting <",$partition->{'name'},">)\n";
+
+	    $debug and printf("Locating <%s> at 0x%08X (%s)\n",
+			      $partition->{'name'}, $partition->{'offset'},
+			      ($partition->{'size'} >= $block_size ?
+			       sprintf("%d blocks", numBlocks($partition->{'size'})) :
+			       sprintf("0x%05X bytes", $partition->{'size'})));
+	    
+	    $splice = 0;
+	}
+	
+	$partition_count++;
+
+    } @new_partitions;
+
+    return;
+}
+
+# Read in an 8MB firmware file, and store the data into @partitions.
+# Note that the data is only stored in a partition if 'offset' and 'size' are defined,
+# and it does not already have data stored in it.
+sub readInFirmware {
+    my($filename, $partitions_ref) = @_;
+
+    my($firmware_buf);
+
+    open FILE,$filename or die "Can't find firmware image \"$filename\": $!\n";
+    read FILE,$firmware_buf,$flash_len or die "Can't read $flash_len bytes from \"$filename\": $!\n";
+    close FILE or die "Can't close \"$filename\": $!\n";
+
+    $debug and printf("Read 0x%08X bytes from \"%s\"\n", length($firmware_buf), $filename);
+
+    spliceFirmwarePartitions($firmware_buf, $partitions_ref);
+
+    # Read the parts of the firmware file into the partitions table.
+    map {
+	if (defined $_->{'offset'} and defined $_->{'size'}) {
+
+	    if (defined $_->{'data'}) {
+		$debug and printf("Not overwriting data in <%s>\n", $_->{'name'});
+	    }
+	    else {
+
+		# Slurp up the data, based on whether a header and/or data is present or not
+		if ($_->{'header'}) {
+
+		    # Read the length, and grab the data based on the length.
+		    my($data_len) = unpack("N", substr($firmware_buf, $_->{'offset'}));
+
+		    # A length of 0xFFFFFFFF means that the area is not initialised
+		    if ($data_len != 0xFFFFFFFF) {
+			$debug and printf("Found header size of 0x%08X bytes for <%s>\n", $data_len, $_->{'name'});
+			$_->{'data'} = substr($firmware_buf, $_->{'offset'} + $_->{'header'}, $data_len);
+		    }
+		}
+		elsif ($_->{'pseudo'} and not defined $_->{'file'} and
+		       (substr($firmware_buf, $_->{'offset'}, $_->{'size'}) eq
+			(pack("C", 0xff) x $_->{'size'}))) {
+		    $debug and printf("Skipping empty pseudo partition <%s>\n", $_->{'name'});
+		}
+		else {
+
+		    # Grab the whole partition, using the maximum size.
+		    $_->{'data'} = substr($firmware_buf, $_->{'offset'}, $_->{'size'});
+		}
+
+		# If skip regions are defined, remove them from the data.
+		if (defined $_->{'skips'}) {
+		    my $removed = 0;
+		    foreach my $region (@{$_->{'skips'}}) {
+			if (($region->{'offset'} > 0) or
+			    not ($_->{'header'} > 0)) {
+			    $debug and printf("Removing 0x%05X bytes from offset 0x%05X\n",
+					      $region->{'size'}, $region->{'offset'});
+			    $region->{'data'} = substr($_->{'data'}, $region->{'offset'} - $removed, $region->{'size'}, '');
+			}
+			$removed += $region->{'size'};
+		    }
+		}
+
+		$quiet or defined $_->{'data'} and printf("Read %s into <%s>\n",
+							  (length($_->{'data'}) >= $block_size ?
+							   sprintf("%d blocks", numBlocks(length($_->{'data'}))) :
+							   sprintf("0x%05X bytes", length($_->{'data'}))), $_->{'name'});
+	    }
+	}
+    } @$partitions_ref;
+}
+
+# Write the partition data stored in memory out into the files associated with each.
+sub writeOutFirmwareParts {
+    my(@partitions) = @_;
+
+    # Write out the parts of the firmware file.
+    map {
+
+	# We can only write if 'data' and 'file' are defined.
+	if (defined $_->{'file'} and defined $_->{'data'} and length($_->{'data'})) {
+	    writeOut($_->{'data'}, $_->{'file'});
+	    $quiet or printf("Wrote 0x%08X bytes from <%s> into \"%s\"\n",
+			      length($_->{'data'}), $_->{'name'}, $_->{'file'});
+	}
+	else {
+	    $debug and printf("Skipping <%s> (%s)\n", $_->{'name'},
+			      (not defined $_->{'file'}) ?
+			      "no filename specified" :
+			      "no data to write");
+	}
+
+    } @partitions;
+
+    return;
+}
+
+# Read in the partition data from the files associated with each and store in memory.
+sub readInFirmwareParts {
+    my(@partitions) = (@_);
+    
+    undef $/; # we want to slurp
+
+    map {
+
+	my $file = $_->{'file'};
+	if (defined $file) {
+	    open FILE,$file or die "Can't find firmware part \"$file\": $!\n";
+
+	    # Slurp in the data
+	    $_->{'data'} = <FILE>;
+
+	    # close the file
+	    close FILE or die "Can't close file \"$file\": $!\n";
+
+	    # Optionally byteswap the data
+	    if ($_->{'byteswap'}) {
+		# Byte swap the data (which has to be padded to a multiple of 4 bytes).
+		$_->{'data'} = pack("N*", unpack("V*", $_->{'data'}.pack("CCC", 0)));
+	    }
+
+	    # Keep track of the actual size.
+	    my $size;
+
+	    if ($_->{'header'}) {
+		if ($_->{'pseudo'}) {
+		    $size = $_->{'header'} + length($_->{'data'});
+		}
+		else {
+		    $size = paddedSize($_->{'header'} + length($_->{'data'}));
+		}
+	    }
+	    elsif (not $_->{'pseudo'}) {
+		$size = paddedSize(length($_->{'data'}));
+	    }
+	    else {
+		$size = length($_->{'data'});
+	    }
+
+	    # Check to make sure the file contents are not too large.
+	    if (defined $_->{'size'} and ($size > $_->{'size'})) {
+		die sprintf("Ran out of flash space in <%s> - %s too large.\n", $_->{'name'},
+			    sprintf("0x%05X bytes", ($size - $_->{'size'})));
+	    }
+
+	    # If the partition does not have a fixed size, the calculate the size.
+	    if (not defined $_->{'size'}) {
+		$_->{'size'} = $size;
+	    }
+
+	    # Keep the user appraised ...
+	    $quiet or printf("Read 0x%08X bytes from \"%s\" into <%s> (%s / %s)%s\n",
+			     length($_->{'data'}), $_->{'file'}, $_->{'name'},
+			     ($size >= $block_size ?
+			      sprintf("%d blocks", numBlocks($size)) :
+			      sprintf("0x%05X bytes", $size)),
+			     ($_->{'size'} >= $block_size ?
+			      sprintf("%d blocks", numBlocks($_->{'size'})) :
+			      sprintf("0x%05X bytes", $_->{'size'})),
+			     ($_->{'byteswap'} ? " (byte-swapped)" : ""));
+	}
+
+    } @partitions;
+
+    return;
+}
+
+# layoutPartitions : this function must be ugly - it needs to verify RedBoot, SysConf, Kernel, Ramdisk, and
+#     FIS directory partitions exist, are in the correct order, and do not have more data than can fit in
+#     their lengths (fixed for all but Ramdisk, which has a minimum length of one block).
+#     If Rootdisk and/or Userdisk exist, it must also verify that their block padded lengths are not
+#     too great for the available space.
+# input : an array of hashes, some of which are populated with data
+# output: same reference with start and size (partition not data) also populated. this populated structure
+#         can then be passed to buildPartitionTable() to generate the actual partition table data
+sub layoutPartitions {
+    my(@partitions) = @_;
+
+    # Find the kernel partition, and save a pointer to it for later use
+    my $kernel;
+    map { ($_->{'name'} eq "Kernel") && ($kernel = $_); } @partitions;
+    $kernel or die "Couldn't find the kernel partition\n";
+
+    # Find the last variable size partition, and save a pointer to it for later use
+    my $lastdisk;
+    my $directory_offset;
+    my $curdisk = $partitions[0];
+    map {
+	if (not defined $lastdisk) {
+	    if ($_->{'name'} eq "FIS directory") {
+		$lastdisk = $curdisk;
+		$directory_offset = $_->{'offset'};
+	    }
+	    else {
+		$curdisk = $_;
+	    }
+	}
+    } @partitions;
+
+    $lastdisk or die "Couldn't find the last variable size partition\n";
+
+    $debug and printf("Last variable size partition is <%s>\n", $lastdisk->{'name'});
+
+    #
+    # here we go through the $partitions array ref and fill in all the values
+    #
+
+    # This points to where the next partition should be placed.
+    my $pointer = $flash_start;
+
+    map {
+
+	$debug and printf("Pointer is 0x%08X\n", $pointer);
+
+	# Determine the start and offset of the current partition.
+	if (defined $_->{'offset'}) {
+	    $_->{'start'} = $flash_start + $_->{'offset'};
+	    # Check for running past the defined start of the partition.
+	    if (($pointer > $_->{'start'}) and not $_->{'pseudo'}) {
+		die sprintf("Ran out of flash space before <%s> - %s too large.\n", $_->{'name'},
+			    sprintf("0x%05X bytes", ($pointer - $_->{'start'})));
+	    }
+	}
+
+	# If offset is not defined, then calculate it.
+	else {
+	    $_->{'start'} = $pointer;
+	    $_->{'offset'} = $_->{'start'} - $flash_start;
+	}
+
+	my $size = defined $_->{'data'} ? length($_->{'data'}) : 0;
+
+	# Add skip regions for the partitions with headers.
+	if ($_->{'header'} > 0) {
+	    # Define the skip region for the initial Sercomm header.
+	    push(@{$_->{'skips'}},
+		 { 'offset' => 0, 'size' => $_->{'header'}, 'data' => undef });
+	    # Allow for the Sercomm header to be prepended to the data.
+	    $size += $_->{'header'};
+
+	    # Determine if the partition overlaps the ramdisk boundary.
+	    if (($_->{'offset'} < $ramdisk_offset) and
+		(($_->{'offset'} + $size) > $ramdisk_offset)) {
+		# Define the skip region for the inline Sercomm header.
+		push(@{$_->{'skips'}},
+		     { 'offset' => ($ramdisk_offset - $_->{'offset'}), 'size' => 16,
+		       'data' => pack("N4", $block_size) });
+		# Allow for the Sercomm header to be inserted in the data.
+		$size += 16;
+	    }
+	}
+
+	# Partitions without headers cannot have skip regions.
+	elsif (($_->{'offset'} <= $ramdisk_offset) and
+	       (($_->{'offset'} + $size) > $ramdisk_offset)) {
+	    # Pad the kernel until it extends past the ramdisk offset.
+	    push(@{$kernel->{'skips'}},
+		 { 'offset' => ($ramdisk_offset - $kernel->{'offset'}), 'size' => 16,
+		   'data' => pack("N4", $block_size) });
+	    $kernel->{'size'} = $ramdisk_offset - $kernel->{'offset'} + $block_size;
+	    $kernel->{'data'} = padBytes($kernel->{'data'},
+					 $kernel->{'size'} - $kernel->{'header'} - 16);
+	    $_->{'offset'} = $ramdisk_offset + $block_size;
+	    $_->{'start'} = $flash_start + $_->{'offset'};
+	    $pointer = $_->{'start'};
+	    $debug and printf("Extending kernel partition past ramdisk offset.\n");
+	}
+
+	# If this is the last variable size partition, then fill the rest of the space.
+	if ($_->{'name'} eq $lastdisk->{'name'}) {
+	    $_->{'size'} = paddedSize($directory_offset + $flash_start - $pointer);
+	    $debug and printf("Padding last variable partition <%s> to 0x%08X bytes\n", $_->{'name'}, $_->{'size'});
+	}
+
+	die sprintf("Partition size not defined in <%s>.\n", $_->{'name'})
+	    unless defined $_->{'size'};
+
+	# Extend to another block if required.
+	if ($size > $_->{'size'}) {
+	    if ($_->{'name'} eq $lastdisk->{'name'}) {
+		die sprintf("Ran out of flash space in <%s> - %s too large.\n", $_->{'name'},
+			    sprintf("0x%05X bytes", ($size - $_->{'size'})));
+	    }
+	    $_->{'size'} = $size;
+	    printf("Extending partition <%s> to 0x%08X bytes\n", $_->{'name'}, $_->{'size'});
+	}
+
+	# Keep the user appraised ...
+	$debug and printf("Allocated <%s> from 0x%08X to 0x%08X (%s / %s)\n",
+			  $_->{'name'}, $_->{'start'}, $_->{'start'} + $_->{'size'},
+			  ($size >= $block_size ?
+			   sprintf("%d blocks", numBlocks($size)) :
+			   sprintf("0x%05X bytes", $size)),
+			  ($_->{'size'} >= $block_size ?
+			   sprintf("%d blocks", numBlocks($_->{'size'})) :
+			   sprintf("0x%05X bytes", $_->{'size'})));
+
+	# Check to make sure we have not run out of room.
+	if (($_->{'start'} + $_->{'size'}) > ($flash_start + $flash_len)) {
+	    die "Ran out of flash space in <", $_->{'name'}, ">\n";
+	}
+
+	$debug and printf("Moving pointer from 0x%08X to 0x%08X (0x%08X + 0x%08X)\n",
+			  $pointer, paddedSize($_->{'start'} + $_->{'size'}),
+			  $_->{'start'}, $_->{'size'});
+
+	# Move the pointer up, in preparation for the next partition.
+	$pointer = paddedSize($_->{'start'} + $_->{'size'});
+
+    } @partitions;
+
+    return;
+}
+
+sub buildPartitionTable {
+    my(@partitions) = @_;
+
+    my($flash_start) = 0x50000000;
+    my($partition_data) = '';
+
+    map {
+
+	# Collate the partition data for all known partitions.
+	if (not $_->{'pseudo'} and defined $_->{'offset'} and defined $_->{'size'}) {
+
+	    # Pack and append the binary table entry for this partition.
+	    $partition_data .= createPartitionEntry($_->{'name'}, $_->{'offset'} + $flash_start,
+						    $_->{'size'}, $_->{'skips'});
+
+	    # If this is the FIS directory, then write the partition table data into it.
+	    if ($_->{'name'} eq "FIS directory") {
+		# Explicitly terminate the partition data.
+		$partition_data .= pack("C",0xff) x 0x100;
+		$_->{'data'} = padBytes($partition_data, $_->{'size'});
+	    }
+
+	    my $size = length($_->{'data'});
+
+	    # Keep the user appraised ...
+	    $debug and printf("Table entry <%s> from 0x%08X to 0x%08X (%s / %s)%s\n",
+			      $_->{'name'}, $_->{'start'}, $_->{'start'} + $_->{'size'},
+			      ($size >= $block_size ?
+			       sprintf("%d blocks", numBlocks($size)) :
+			       sprintf("0x%05X bytes", $size)),
+			      ($_->{'size'} >= $block_size ?
+			       sprintf("%d blocks", numBlocks($_->{'size'})) :
+			       sprintf("0x%05X bytes", $_->{'size'})),
+			      (defined $_->{'skips'} ?
+			       sprintf("\nTable entry <%s> skip %s", $_->{'name'},
+				       join(", ",
+					    map { sprintf("0x%08X to 0x%08X", $_->{'offset'},
+							  $_->{'offset'} + $_->{'size'} - 1) }
+					    @{$_->{'skips'}})) :
+			       "")
+			      );
+	}
+	else {
+	    $debug and print "No table entry required for <", $_->{'name'}, ">\n";
+	}
+
+    } @partitions;
+
+    return;
+}
+
+sub writeOutFirmware {
+    my($filename, @partitions) = @_;
+
+    # Clear the image to start.
+    my $image_buf = "";
+
+    map {
+
+	# We can only write a partition if it has an offset, a size, and some data to write.
+	if (defined $_->{'offset'} and defined $_->{'size'} and defined $_->{'data'}) {
+
+	    # Keep track of the end of the image.
+	    my $end_point = length($image_buf);
+
+	    # If the next partition is well past the end of the current image, then pad it.
+	    if ($_->{'offset'} > $end_point) {
+		$image_buf .= padBytes("", $_->{'offset'} - $end_point);
+		$quiet or printf("Padded %s before <%s> in \"%s\"\n",
+				 ((length($image_buf) - $end_point) >= $block_size ?
+				  sprintf("%d blocks", numBlocks(length($image_buf) - $end_point)) :
+				  sprintf("0x%05X bytes", length($image_buf) - $end_point)),
+				 $_->{'name'}, $filename);
+	    }
+
+	    # If the next parition is before the end of the current image, then rewind.
+	    elsif ($_->{'offset'} < $end_point) {
+		$debug and printf("Rewound %s before <%s> in \"%s\"\n",
+				  (($end_point - $_->{'offset'}) >= $block_size ?
+				   sprintf("%d blocks", numBlocks($end_point - $_->{'offset'})) :
+				   sprintf("0x%05X bytes", $end_point - $_->{'offset'})),
+				  $_->{'name'}, $filename);
+# 		if (($end_point - $_->{'offset'}) >= $block_size) {
+# 		    die "Allocation error: rewound a full block or more ...\n";
+# 		}
+	    }
+
+	    # If skip regions are defined, add them to the data.
+	    if (defined $_->{'skips'}) {
+		my $added = 0;
+		foreach my $region (@{$_->{'skips'}}) {
+		    if (($region->{'offset'} > 0) or
+			not ($_->{'header'} > 0)) {
+			$debug and printf("Inserted 0x%05X bytes (at offset 0x%05X) into <%s>\n",
+					  $region->{'size'}, $region->{'offset'}, $_->{'name'});
+			substr($_->{'data'},
+			       $region->{'offset'} + $added - $_->{'header'},
+			       0, $region->{'data'});
+			$added += $region->{'size'};
+		    }
+		}
+	    }
+
+	    # Splice the data into the image at the appropriate place, padding as required.
+	    substr($image_buf, $_->{'offset'}, $_->{'size'},
+		   $_->{'header'} ?
+		   padBytes(pack("N4",length($_->{'data'})).$_->{'data'}, $_->{'size'}) :
+		   padBytes($_->{'data'}, $_->{'size'}));
+	    
+	    # Keep the user appraised ...
+	    $quiet or printf("Wrote %s (0x%08X to 0x%08X) from <%s> into \"%s\"\n",
+			     ($_->{'size'} >= $block_size ?
+			      sprintf("%2d blocks", numBlocks($_->{'size'})) :
+			      sprintf("0x%05X bytes", $_->{'size'})),
+			     $_->{'offset'}, $_->{'offset'}+$_->{'size'}, $_->{'name'}, $filename);
+	}
+
+	# If we are not able to write a partition, then give debug information about why.
+	else {
+	    $debug and printf("Skipping <%s> (%s)\n", $_->{'name'},
+			      (not defined $_->{'offset'}) ? "no offset defined" :
+			      ((not defined $_->{'size'}) ? "no size defined" :
+			       "no data available"));
+	}
+
+    } @partitions;
+
+    # Write the image to the specified file.
+    writeOut($image_buf, $filename);
+
+    return;
+}
+
+# checkPartitionTable: sanity check partition table - for testing but might evolve into setting @partitions
+#    so that we can write out jffs2 partitions from a read image
+#    currently not nearly paranoid enough
+sub checkPartitionTable {
+    my($data) = @_;
+
+    my($pointer) = 0;
+    my($entry);
+
+    my($name, $flash_base, $size, $done, $dummy_long, $padding);
+    do {
+	$entry = substr($data, $pointer, 0x100);
+
+	($name,$flash_base,$dummy_long,$size,$dummy_long,$dummy_long,$padding,$dummy_long,$dummy_long) = unpack("a16N5x212N2",$entry);
+	$name =~ s/\0//g;
+	$debug and printf("pointer: %d\tname: %s%sflash_base: 0x%08X\tsize: 0x%08X\n",
+			  $pointer, $name, (" " x (16 - length($name))), $flash_base, $size);
+	$pointer += 0x100;
+	$debug and printf("terminator: 0x%08X\n", unpack("C", substr($data, $pointer, 1)));
+	if (unpack("C", substr($data, $pointer, 1)) eq 0xff) {
+	    $done = 1;
+	}
+    } until $done;
+}
+
+sub printPartitions {
+    my(@partitions) = @_;
+
+    my($offset, $size, $skips);
+    map {
+#	defined $_->{'size'} ? $size = $_->{'size'} : $size = undef;
+
+	if (defined  $_->{'size'}) {
+	    $size = $_->{'size'};
+	}
+	else {
+	    $size = undef;
+	}
+	if (defined  $_->{'offset'}) {
+	    $offset = $_->{'offset'};
+	}
+	else {
+	    $offset = undef;
+	}
+	if (defined  $_->{'skips'}) {
+	    $skips = $_->{'skips'};
+	}
+	else {
+	    $skips = undef;
+	}
+	printf("%s%s", $_->{'name'}, (" " x (16 - length($_->{'name'}))));
+	if (defined $offset) { printf("0x%08X\t", $offset); } else { printf("(undefined)\t");   };
+	if (defined $size)   { printf("0x%08X", $size); } else { printf("(undefined)"); };
+	if (defined $skips) {
+	    printf("\t[%s]",
+		   join(", ",
+			map { sprintf("0x%05X/0x%05X", $_->{'offset'}, $_->{'size'}); }
+			@$skips));
+	}
+	printf("\n");
+    } @partitions;
+}
+
+sub defaultPartitions {
+
+    return ({'name'=>'RedBoot',          'file'=>'RedBoot',
+	     'offset'=>0x00000000,        'size'=>0x00040000,
+	     'variable'=>0, 'header'=>0,  'pseudo'=>0, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'EthAddr',           'file'=>undef,
+	     'offset'=>0x0003ffb0,        'size'=>0x00000006,
+	     'variable'=>0, 'header'=>0,  'pseudo'=>1, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'SysConf',           'file'=>'SysConf',
+	     'offset'=>0x00040000,        'size'=>0x00020000,
+	     'variable'=>0, 'header'=>0,  'pseudo'=>0, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'Loader',            'file'=>'apex.bin',
+	     'offset'=>undef,             'size'=>undef,
+	     'variable'=>1, 'header'=>16, 'pseudo'=>0, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'Kernel',            'file'=>'vmlinuz',
+	     'offset'=>undef,             'size'=>undef,
+	     'variable'=>1, 'header'=>16, 'pseudo'=>0, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'Ramdisk',           'file'=>'ramdisk.gz',
+	     'offset'=>undef,             'size'=>undef,
+	     'variable'=>1, 'header'=>16, 'pseudo'=>0, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'FIS directory',     'file'=>undef,
+	     'offset'=>0x007e0000,        'size'=>0x00020000,
+	     'variable'=>0, 'header'=>0,  'pseudo'=>0, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'Loader config',	  'file'=>undef,
+	     'offset'=>0x007f8000,        'size'=>0x00004000,
+	     'variable'=>0, 'header'=>0,  'pseudo'=>1, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'Microcode',	  'file'=>'NPE-B',
+	     'offset'=>0x007fc000,        'size'=>0x00003fe0,
+	     'variable'=>0, 'header'=>16, 'pseudo'=>1, 'data'=>undef, 'byteswap'=>0},
+	    {'name'=>'Trailer',           'file'=>'Trailer',
+	     'offset'=>0x007ffff0,        'size'=>0x00000010,
+	     'variable'=>0, 'header'=>0,  'pseudo'=>1, 'data'=>undef, 'byteswap'=>0});
+}
+
+# Main routine starts here ...
+
+my($unpack, $pack, $little, $fatflash, $input, $output, $redboot);
+my($kernel, $sysconf, $ramdisk, $fisdir);
+my($microcode, $trailer, $ethaddr, $loader);
+
+END {
+    # Remove temporary files
+    for my $file (@cleanup) {
+	unlink $file;
+    }
+}
+
+if (!GetOptions("d|debug"       => \$debug,
+		"q|quiet"       => \$quiet,
+		"u|unpack"      => \$unpack,
+		"p|pack"        => \$pack,
+		"l|little"      => \$little,
+		"F|fatflash"    => \$fatflash,
+		"i|input=s"     => \$input,
+		"o|output=s"    => \$output,
+		"b|redboot=s"   => \$redboot,
+		"k|kernel=s"    => \$kernel,
+		"s|sysconf=s"   => \$sysconf,
+		"r|ramdisk=s"   => \$ramdisk,
+		"f|fisdir=s"    => \$fisdir,
+		"m|microcode=s" => \$microcode,
+		"t|trailer=s"   => \$trailer,
+		"e|ethaddr=s"   => \$ethaddr,
+		"L|loader=s"    => \$loader,
+		) or (not defined $pack and not defined $unpack)) {
+    print "Usage: slugimage <options>\n";
+    print "\n";
+    print "  [-d|--debug]			Turn on debugging output\n";
+    print "  [-q|--quiet]			Turn off status messages\n";
+    print "  [-u|--unpack]			Unpack a firmware image\n";
+    print "  [-p|--pack]			Pack a firmware image\n";
+    print "  [-l|--little]			Convert Kernel and Ramdisk to little-endian\n";
+    print "  [-F|--fatflash]			Generate an image for 16MB flash\n";
+    print "  [-i|--input]     <file>		Input firmware image filename\n";
+    print "  [-o|--output]    <file>		Output firmware image filename\n";
+    print "  [-b|--redboot]   <file>		Input/Output RedBoot filename\n";
+    print "  [-s|--sysconf]   <file>		Input/Output SysConf filename\n";
+    print "  [-L|--loader]    <file>		Second stage boot loader filename\n";
+    print "  [-k|--kernel]    <file>		Input/Ouptut Kernel filename\n";
+    print "  [-r|--ramdisk]   <file>		Input/Output Ramdisk filename(s)\n";
+    print "  [-f|--fisdir]    <file>		Input/Output FIS directory filename\n";
+    print "  [-m|--microcode] <file>		Input/Output Microcode filename\n";
+    print "  [-t|--trailer]   <file>		Input/Output Trailer filename\n";
+    print "  [-e|--ethaddr]   <AABBCCDDEEFF>	Set the Ethernet address\n";
+
+    # %%% TODO %%% Document --ramdisk syntax
+
+    exit 1;
+}
+
+my(@partitions) = defaultPartitions();
+
+if ($pack) {
+    die "Output filename must be specified\n" unless defined $output;
+
+    # If we're creating an image and no RedBoot, SysConf partition is
+    # explicitly specified, simply write an empty one as the upgrade tools
+    # don't touch RedBoot and SysConf anyway.  If no Trailer is specified,
+    # put in one.
+    if (not defined $redboot and not -e "RedBoot") {
+	$redboot = tmpnam();
+	open TMP, ">$redboot" or die "Cannot open file $redboot: $!";
+	push @cleanup, $redboot;
+	# The RedBoot partition is 256 * 1024 = 262144; the trailer we add
+	# is 70 bytes.
+	print TMP "\0"x(262144-70);
+	# Upgrade tools check for an appropriate Sercomm trailer.
+	for my $i (@sercomm_redboot_trailer) {
+	    print TMP pack "S", $i;
+	}
+	close TMP;
+    }
+    if (not defined $sysconf and not -e "SysConf") {
+	$sysconf = tmpnam();
+	open TMP, ">$sysconf" or die "Cannot open file $sysconf: $!";
+	push @cleanup, $sysconf;
+	# The SysConf partition is 128 * 1024 = 131072
+	print TMP "\0"x131072;
+	close TMP;
+    }
+    if (not defined $trailer and not -e "Trailer") {
+	$trailer = tmpnam();
+	open TMP, ">$trailer" or die "Cannot open file $trailer: $!";
+	push @cleanup, $trailer;
+	for my $i (@sercomm_flash_trailer) {
+	    print TMP pack "S", $i;
+	}
+	close TMP;
+    }
+
+    # If the microcode was not specified, then don't complain that it's missing.
+    if (not defined $microcode and not -e "NPE-B") {
+	map { ($_->{'name'} eq 'Microcode') && ($_->{'file'} = undef);   } @partitions;
+    }
+}
+
+# Go through the partition options, and set the names and files in @partitions
+if (defined $redboot)   { map { ($_->{'name'} eq 'RedBoot')	  && ($_->{'file'} = $redboot);   } @partitions; }
+if (defined $sysconf)   { map { ($_->{'name'} eq 'SysConf')	  && ($_->{'file'} = $sysconf);   } @partitions; }
+if (defined $loader)    { map { ($_->{'name'} eq 'Loader')	  && ($_->{'file'} = $loader);    } @partitions; }
+if (defined $kernel)    { map { ($_->{'name'} eq 'Kernel')	  && ($_->{'file'} = $kernel);    } @partitions; }
+if (defined $fisdir)    { map { ($_->{'name'} eq 'FIS directory') && ($_->{'file'} = $fisdir);    } @partitions; }
+if (defined $microcode) { map { ($_->{'name'} eq 'Microcode')	  && ($_->{'file'} = $microcode); } @partitions; }
+if (defined $trailer)   { map { ($_->{'name'} eq 'Trailer')	  && ($_->{'file'} = $trailer);   } @partitions; }
+
+if (defined $little)  {
+    map {
+	if (($_->{'name'} eq 'Loader') or
+	    ($_->{'name'} eq 'Kernel') or
+	    ($_->{'name'} eq 'Ramdisk')) {
+	    $_->{'byteswap'} = 1;
+	}
+    } @partitions;
+}
+
+if (defined $fatflash)  {
+    $flash_len = 0x01000000;
+    map {
+	if (($_->{'name'} eq 'FIS directory') or
+	    ($_->{'name'} eq 'Loader config') or
+	    ($_->{'name'} eq 'Microcode') or
+	    ($_->{'name'} eq 'Trailer')) {
+	    $_->{'offset'} += 0x00800000;
+	}
+    } @partitions;
+}
+
+if (defined $ethaddr) {
+    map {
+	if ($_->{'name'} eq 'EthAddr') {
+	    $ethaddr =~ s/://g;
+	    if (($ethaddr !~ m/^[0-9A-Fa-f]+$/) or (length($ethaddr) != 12)) {
+		die "Invalid ethernet address specification: '".$ethaddr."'\n";
+	    }
+	    $_->{'data'} = pack("H12", $ethaddr);
+	}
+    } @partitions;
+}
+
+if (defined $ramdisk) {
+
+    # A single filename is used for the ramdisk filename
+    if ($ramdisk !~ m/[:,]/) {
+	map { ($_->{'name'} eq 'Ramdisk') && ($_->{'file'} = $ramdisk); } @partitions;
+    }
+
+    # otherwise, it's a list of name:file mappings
+    else {
+	my @mappings = split(',', $ramdisk);
+
+	# Find the index of the Ramdisk entry
+	my $index;
+	my $count = 0;
+	map {
+	    if (not defined $index) {
+		if ($_->{'name'} eq "Ramdisk") {
+		    $index = $count;
+		}
+		$count++;
+	    }
+	} @partitions;
+
+	defined $index or die "Cannot find the Ramdisk partition\n";
+
+	# Replace the Ramdisk entry with the new mappings
+	splice(@partitions, $index, 1, map {
+
+	    # Preserve the information from the ramdisk entry
+	    my %entry = %{$partitions[$index]};
+
+	    # Parse the mapping
+	    ($_ =~ m/^([^:]+):([^:]+)(:([^:]+))?$/) or die "Invalid syntax in --ramdisk\n";
+	    $entry{'name'} = $1; $entry{'file'} = $2; my $size = $4;
+
+	    # If the mapping is not for the ramdisk, then undefine its attributes
+	    if ($entry{'name'} ne 'Ramdisk') {
+		$entry{'offset'} = undef;
+		$entry{'size'} = undef;
+		$entry{'variable'} = 1;
+		$entry{'header'} = 0;
+		$entry{'pseudo'} = 0;
+		$entry{'data'} = undef;
+		$entry{'byteswap'} = 0;
+	    }
+
+	    # Support specification of the number of blocks for empty jffs2
+	    if ($entry{'file'} =~ m/^[0-9]+$/) {
+		$size = $entry{'file'};
+		$entry{'file'} = undef;
+	    }
+
+	    # If the user has specified a size, then respect their wishes
+	    if (defined $size) {
+		$entry{'size'} = $size * $block_size;
+		# Create an empty partition of the requested size.
+		$entry{'data'} = padBytes("", $entry{'size'} - $entry{'header'});
+	    }
+
+	    \%entry;
+
+	} @mappings);
+    }
+}
+
+# Read in the firmware image
+if ($input) {
+    if ($debug) {
+	print "Initial partition map:\n";
+	printPartitions(@partitions);
+    }
+    
+    my $result = readInFirmware($input, \@partitions);
+
+    if ($debug) {
+	print "After reading firmware:\n";
+	printPartitions(@partitions);
+    }
+}
+
+# Unpack the firmware if requested
+if ($unpack) {
+    die "Input filename must be specified\n" unless defined $input;
+
+#    map {
+#	($_->{'name'} eq 'FIS directory') and @partitions = checkPartitionTable($_->{'data'});
+#    } @partitions;
+
+    writeOutFirmwareParts(@partitions);
+
+}
+
+# Pack the firmware if requested
+if ($pack) {
+
+    if (!defined $loader) {
+	removeOptionalLoader(\@partitions);
+    }
+
+    if ($debug) {
+	print "Initial partition map:\n";
+	printPartitions(@partitions);
+    }
+    
+    my $result = readInFirmwareParts(@partitions);
+
+    if ($debug) {
+	print "after readInFirmwareParts():\n";
+	printPartitions(@partitions);
+# 	map {
+# 	    ($_->{'name'} eq 'RedBoot') && (printRedbootTrailer($_->{'data'}));
+# 	} @partitions;
+    }
+    
+    layoutPartitions(@partitions);
+
+    if ($debug) {
+ 	print "after layoutPartitions():\n";
+ 	printPartitions(@partitions);
+    }
+    
+    buildPartitionTable(@partitions);
+
+    if ($debug) {
+ 	print "after buildPartitionTable():\n";
+ 	printPartitions(@partitions);
+
+#  	my($lastblock);
+#  	map {
+#  	    if ($_->{'name'} eq 'FIS directory') {
+#  		$lastblock = $_->{'data'};
+#  	    }
+#  	} @partitions;
+
+#  	print "checkPartitionTable():\n";
+#  	checkPartitionTable($lastblock);
+    }
+    
+    writeOutFirmware($output, @partitions);
+
+}
+
+exit 0;
diff --git a/scripts/srecimage.pl b/scripts/srecimage.pl
new file mode 100755
index 0000000..a68aa61
--- /dev/null
+++ b/scripts/srecimage.pl
@@ -0,0 +1,57 @@
+#!/usr/bin/env perl
+#
+# srecimage.pl - script to convert a binary image into srec
+# Copyright (c) 2015 - Jo-Philipp Wich <jow@openwrt.org>
+#
+# This script is in the public domain.
+
+use strict;
+
+my ($input, $output, $offset) = @ARGV;
+
+if (!defined($input) || !-f $input || !defined($output) ||
+    !defined($offset) || $offset !~ /^(0x)?[a-fA-F0-9]+$/) {
+	die "Usage: $0 <input file> <output file> <load address>\n";
+}
+
+sub srec
+{
+	my ($type, $addr, $data, $len) = @_;
+	my @addrtypes = qw(%04X %04X %06X %08X %08X %04X %06X %08X %06X %04X);
+	my $addrstr = sprintf $addrtypes[$type], $addr;
+
+	$len = length($data) if ($len <= 0);
+	$len += 1 + (length($addrstr) / 2);
+
+	my $sum = $len;
+
+	foreach my $byte (unpack('C*', pack('H*', $addrstr)), unpack('C*', $data))
+	{
+		$sum += $byte;
+	}
+
+	return sprintf "S%d%02X%s%s%02X\r\n",
+	       $type, $len, $addrstr, uc(unpack('H*', $data)), ~($sum & 0xFF) & 0xFF;
+}
+
+
+open(IN, '<:raw', $input) || die "Unable to open $input: $!\n";
+open(OUT, '>:raw', $output) || die "Unable to open $output: $!\n";
+
+my ($basename) = $output =~ m!([^/]+)$!;
+
+print OUT srec(0, 0, $basename, 0);
+
+my $off = hex($offset);
+my $len;
+
+while (defined($len = read(IN, my $buf, 16)) && $len > 0)
+{
+	print OUT srec(3, $off, $buf, $len);
+	$off += $len;
+}
+
+print OUT srec(7, hex($offset), "", 0);
+
+close OUT;
+close IN;
diff --git a/scripts/strip-kmod.sh b/scripts/strip-kmod.sh
new file mode 100755
index 0000000..e3f13be
--- /dev/null
+++ b/scripts/strip-kmod.sh
@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+[ -n "$CROSS" ] || {
+	echo "The variable CROSS must be set to point to the cross-compiler prefix"
+	exit 1
+}
+
+MODULE="$1"
+
+[ "$#" -ne 1 ] && {
+	echo "Usage: $0 <module>"
+	exit 1
+}
+
+ARGS=
+if [ -n "$KEEP_SYMBOLS" ]; then
+	ARGS="-X --strip-debug"
+else
+	ARGS="-x -G __this_module --strip-unneeded"
+fi
+
+if [ -z "$KEEP_BUILD_ID" ]; then
+    ARGS="$ARGS -R .note.gnu.build-id"
+fi
+
+${CROSS}objcopy \
+	-R .comment \
+	-R .pdr \
+	-R .mdebug.abi32 \
+	-R .gnu.attributes \
+	-R .reginfo \
+	$ARGS \
+	"$MODULE" "$MODULE.tmp"
+
+[ -n "$NO_RENAME" ] && {
+	mv "${MODULE}.tmp" "$MODULE"
+	exit 0
+}
+
+${CROSS}nm "$MODULE.tmp" | awk '
+BEGIN {
+	n = 0
+}
+
+$3 && $2 ~ /[brtd]/ && $3 !~ /\$LC/ && !def[$3] {
+	print "--redefine-sym "$3"=_"n;
+	n = n + 1
+	def[$3] = 1
+}
+' > "$MODULE.tmp1"
+
+${CROSS}objcopy `cat ${MODULE}.tmp1` ${MODULE}.tmp ${MODULE}.out
+mv "${MODULE}.out" "${MODULE}"
+rm -f "${MODULE}".t*
diff --git a/scripts/symlink-tree.sh b/scripts/symlink-tree.sh
new file mode 100755
index 0000000..e44ebda
--- /dev/null
+++ b/scripts/symlink-tree.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# Create a new openwrt tree with symlinks pointing at the current tree
+# Usage: ./scripts/symlink-tree.sh <destination>
+
+FILES="
+	BSDmakefile
+	Config.in
+	LICENSE
+	Makefile
+	README
+	dl
+	docs
+	feeds.conf.default
+	include
+	package
+	rules.mk
+	scripts
+	target
+	toolchain
+	tools"
+
+if [ -f feeds.conf ] ; then
+	FILES="$FILES feeds.conf"
+fi
+
+if [ -z "$1" ]; then
+	echo "Syntax: $0 <destination>" >&2
+	exit 1
+fi
+
+if [ -e "$1" ]; then
+	echo "Error: $1 already exists" >&2
+	exit 1
+fi
+
+set -e # fail if any commands fails
+mkdir -p dl "$1"
+for file in $FILES; do
+	[ -e "$PWD/$file" ] || {
+		echo "ERROR: $file does not exist in the current tree" >&2
+		exit 1
+	}
+	ln -s "$PWD/$file" "$1/"
+done
+exit 0
diff --git a/scripts/sysupgrade-nand.sh b/scripts/sysupgrade-nand.sh
new file mode 100755
index 0000000..92b326c
--- /dev/null
+++ b/scripts/sysupgrade-nand.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+
+board=""
+kernel=""
+rootfs=""
+outfile=""
+err=""
+
+while [ "$1" ]; do
+	case "$1" in
+	"--board")
+		board="$2"
+		shift
+		shift
+		continue
+		;;
+	"--kernel")
+		kernel="$2"
+		shift
+		shift
+		continue
+		;;
+	"--rootfs")
+		rootfs="$2"
+		shift
+		shift
+		continue
+		;;
+	*)
+		if [ ! "$outfile" ]; then
+			outfile=$1
+			shift
+			continue
+		fi
+		;;
+	esac
+done
+
+if [ ! -n "$board" -o ! -r "$kernel" -a  ! -r "$rootfs" -o ! "$outfile" ]; then
+	echo "syntax: $0 [--board boardname] [--kernel kernelimage] [--rootfs rootfs] out"
+	exit 1
+fi
+
+tmpdir="$( mktemp -d 2> /dev/null )"
+if [ -z "$tmpdir" ]; then
+	# try OSX signature
+	tmpdir="$( mktemp -t 'ubitmp' -d )"
+fi
+
+if [ -z "$tmpdir" ]; then
+	exit 1
+fi
+
+mkdir -p "${tmpdir}/sysupgrade-${board}"
+echo "BOARD=${board}" > "${tmpdir}/sysupgrade-${board}/CONTROL"
+[ -z "${rootfs}" ] || cp "${rootfs}" "${tmpdir}/sysupgrade-${board}/root"
+[ -z "${kernel}" ] || cp "${kernel}" "${tmpdir}/sysupgrade-${board}/kernel"
+
+(cd "$tmpdir"; tar cvf sysupgrade.tar sysupgrade-${board})
+err="$?"
+if [ -e "$tmpdir/sysupgrade.tar" ]; then
+	cp "$tmpdir/sysupgrade.tar" "$outfile"
+else
+	err=2
+fi
+rm -rf "$tmpdir"
+
+exit $err
diff --git a/scripts/timestamp.pl b/scripts/timestamp.pl
new file mode 100755
index 0000000..e24d814
--- /dev/null
+++ b/scripts/timestamp.pl
@@ -0,0 +1,69 @@
+#!/usr/bin/env perl
+# 
+# Copyright (C) 2006 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+use strict;
+
+sub get_ts($$) {
+	my $path = shift;
+	my $options = shift;
+	my $ts = 0;
+	my $fn = "";
+	$path .= "/" if( -d $path);
+	open FIND, "find $path -type f -and -not -path \\*/.svn\\* -and -not -path \\*CVS\\* $options 2>/dev/null |";
+	while (<FIND>) {
+		chomp;
+		my $file = $_;
+		next if -l $file;
+		my $mt = (stat $file)[9];
+		if ($mt > $ts) {
+			$ts = $mt;
+			$fn = $file;
+		}
+	}
+	close FIND;
+	return ($ts, $fn);
+}
+
+(@ARGV > 0) or push @ARGV, ".";
+my $ts = 0;
+my $n = ".";
+my %options;
+while (@ARGV > 0) {
+	my $path = shift @ARGV;
+	if ($path =~ /^-x/) {
+		my $str = shift @ARGV;
+		$options{"findopts"} .= " -and -not -path '".$str."'"
+	} elsif ($path =~ /^-f/) {
+		$options{"findopts"} .= " -follow";
+	} elsif ($path =~ /^-n/) {
+		my $arg = $ARGV[0];
+		$options{$path} = $arg;
+	} elsif ($path =~ /^-/) {
+		$options{$path} = 1;
+	} else {
+		my ($tmp, $fname) = get_ts($path, $options{"findopts"});
+		if ($tmp > $ts) {
+			if ($options{'-F'}) {
+				$n = $fname;
+			} else {
+				$n = $path;
+			}
+			$ts = $tmp;
+		}
+	}
+}
+
+if ($options{"-n"}) {
+	exit ($n eq $options{"-n"} ? 0 : 1);
+} elsif ($options{"-p"}) {
+	print "$n\n";
+} elsif ($options{"-t"}) {
+	print "$ts\n";
+} else {
+	print "$n\t$ts\n";
+}
diff --git a/scripts/ubinize-image.sh b/scripts/ubinize-image.sh
new file mode 100755
index 0000000..b87cbb4
--- /dev/null
+++ b/scripts/ubinize-image.sh
@@ -0,0 +1,114 @@
+#!/bin/sh
+
+ubootenv=""
+ubinize_param=""
+kernel=""
+rootfs=""
+outfile=""
+err=""
+
+get_magic_word() {
+	dd if=$1 bs=2 count=1 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"'
+}
+
+is_ubifs() {
+	if [ "$( get_magic_word $1 )" = "3118" ]; then
+		echo "1"
+	fi
+}
+
+ubivol() {
+	volid=$1
+	name=$2
+	image=$3
+	autoresize=$4
+	echo "[$name]"
+	echo "mode=ubi"
+	echo "vol_id=$volid"
+	echo "vol_type=dynamic"
+	echo "vol_name=$name"
+	if [ "$image" ]; then
+		echo "image=$image"
+	else
+		echo "vol_size=1MiB"
+	fi
+	if [ "$autoresize" ]; then
+		echo "vol_flags=autoresize"
+	fi
+}
+
+ubilayout() {
+	local vol_id=0
+	local root_is_ubifs="$( is_ubifs "$2" )"
+	if [ "$1" = "ubootenv" ]; then
+		ubivol $vol_id ubootenv
+		vol_id=$(( $vol_id + 1 ))
+		ubivol $vol_id ubootenv2
+		vol_id=$(( $vol_id + 1 ))
+	fi
+	if [ "$3" ]; then
+		ubivol $vol_id kernel "$3"
+		vol_id=$(( $vol_id + 1 ))
+	fi
+	ubivol $vol_id rootfs "$2" $root_is_ubifs
+	vol_id=$(( $vol_id + 1 ))
+	[ "$root_is_ubifs" ] || ubivol $vol_id rootfs_data "" 1
+}
+
+while [ "$1" ]; do
+	case "$1" in
+	"--uboot-env")
+		ubootenv="ubootenv"
+		shift
+		continue
+		;;
+	"--kernel")
+		kernel="$2"
+		shift
+		shift
+		continue
+		;;
+	"-"*)
+		ubinize_param="$@"
+		break
+		;;
+	*)
+		if [ ! "$rootfs" ]; then
+			rootfs=$1
+			shift
+			continue
+		fi
+		if [ ! "$outfile" ]; then
+			outfile=$1
+			shift
+			continue
+		fi
+		;;
+	esac
+done
+
+if [ ! -r "$rootfs" -o ! -r "$kernel" -a ! "$outfile" ]; then
+	echo "syntax: $0 [--uboot-env] [--kernel kernelimage] rootfs out [ubinize opts]"
+	exit 1
+fi
+
+ubinize="$( which ubinize )"
+if [ ! -x "$ubinize" ]; then
+	echo "ubinize tool not found or not usable"
+	exit 1
+fi
+
+ubinizecfg="$( mktemp 2> /dev/null )"
+if [ -z "$ubinizecfg" ]; then
+	# try OSX signature
+	ubinizecfg="$( mktemp -t 'ubitmp' )"
+fi
+ubilayout "$ubootenv" "$rootfs" "$kernel" > "$ubinizecfg"
+
+cat "$ubinizecfg"
+ubinize -o "$outfile" $ubinize_param "$ubinizecfg"
+err="$?"
+[ ! -e "$outfile" ] && err=2
+rm "$ubinizecfg"
+
+exit $err
diff --git a/scripts/update-package-md5sum b/scripts/update-package-md5sum
new file mode 100755
index 0000000..1cf1716
--- /dev/null
+++ b/scripts/update-package-md5sum
@@ -0,0 +1,38 @@
+#!/usr/bin/env sh
+#
+# update-package-md5sum - Updates md5sum of OpenWrt packages
+#
+# update-package-md5sum will update the md5sum for all recusivly found OpenWrt packages
+# in a given directory.
+#
+# Usage: scripts/update-package-md5sum <package directory>
+#
+# Example: `scripts/update-package-md5sum feeds/packages/python`
+
+DL_FOLDER=`grep -Eo '^CONFIG_DOWNLOAD_FOLDER=".*"$' .config | \
+    sed 's,^CONFIG_DOWNLOAD_FOLDER="\(.*\)"$,\1,'`
+if test -z ${DL_FOLDER}; then
+    DL_FOLDER=./dl
+fi
+
+if test -z "$1"; then
+	echo "Usage: $0 <package directory>"
+	exit
+fi
+
+for file in `find $1 -name Makefile`; do
+    if grep BuildPackage ${file} > /dev/null; then
+        source=`DUMP=1 TOPDIR=\`pwd\` make -f ${file} | grep -m 1 Source | cut -f 2 -d ' '`
+        if test -n "${source}"; then
+			if test ! -f "${DL_FOLDER}/${source}"; then
+				make package/`basename \`dirname ${file}\``/download
+			fi
+            sum=`md5sum ${DL_FOLDER}/${source} 2> /dev/null` || continue
+            echo Updating ${file}...
+            sum=`echo ${sum} | cut -d ' ' -f 1`
+            sed -i "s,^PKG_MD5SUM:=.*,PKG_MD5SUM:=${sum}," ${file}
+        else
+            echo No source for ${file}
+        fi
+    fi
+done