Fixed indentation in configure script. Added missing license text.

1 files changed, 194 insertions, 178 deletions

diff --git a/configure b/configure
index 5a2c56bcd..56fdbe047 100755
--- a/configure
+++ b/configure
@@ -1,7 +1,22 @@
 #!/bin/sh
 #
-# configure script for ghdl (c) 2014 Tristan Gingold
+# Configure script for GHDL (C) 2014-2018 Tristan Gingold
 #
+# GHDL 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.
+# 
+# GHDL 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 GHDL; see the file COPYING.  If not, write to the Free
+# Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
 
 # Current version.  This is the only place where the version is written.
 # Any code that needs version should read it directly or indirectly from this
@@ -42,174 +57,176 @@ subst_vars="CC CXX GNATMAKE MAKE CFLAGS LDFLAGS build srcdir abs_srcdir prefix b
 # Find srcdir
 srcdir=`dirname $progname`
 if test x$srcdir = x; then
-    srcdir=.
+	srcdir=.
 fi
 
 # Check echo -n / echo \c
 if test x`echo -n` = x"-n" ; then
-  echon=
-  echoc="\c"
+	echon=
+	echoc="\c"
 else
-  echon="-n"
-  echoc=
+	echon="-n"
+	echoc=
 fi
 
 # Check $1 is a prefix of $2
 check_version()
 {
-  exp_ver=`echo $1 | sed 's/\./v/g'`
-  tool_ver=`echo $2 | sed 's/\./v/g'`
-  if echo $tool_ver | grep -q "^$exp_ver"; then
-      return 0
-  else
-      return 1
-  fi
+	exp_ver=`echo $1 | sed 's/\./v/g'`
+	tool_ver=`echo $2 | sed 's/\./v/g'`
+	if echo $tool_ver | grep -q "^$exp_ver"; then
+		return 0
+	else
+		return 1
+	fi
 }
 
 # Decode options
 for opt do
-  optarg=`expr x"$opt" : 'x[^=]*=\(.*\)'`
-  case "$opt" in
-      CC=*|CFLAGS=*|GNATMAKE=*|LDFLAGS=*|CXX=*)
-        optvar=`expr x"$opt" : 'x\([^=]*\)=.*'`
-	eval $optvar=\"$optarg\"
-	;;
-      --prefix=*) prefix="$optarg";;
-      --srcdir=*) srcdir="$optarg";;
-      --with-gcc=*) gcc_src_dir="$optarg"; backend=gcc;;
-      --with-llvm=*) echo "--with-llvm is deprecated, use --with-llvm-config";
-		     llvm_config="$optarg/bin/llvm-config"; backend=llvm;;
-      --with-llvm-config) llvm_config="llvm-config"; backend=llvm;;
-      --with-llvm-config=*) llvm_config="$optarg"; backend=llvm;;
-      --with-backtrace-lib=*) backtrace_lib="$optarg";;
-      --enable-werror) enable_werror=true;;
-      --disable-werror) enable_werror=false;;
-      --enable-checks) enable_checks=true;;
-      --disable-checks) enable_checks=false;;
-      --enable-openieee) enable_openieee=true;;
-      --disable-openieee) enable_openieee=false;;
-      --enable-python) enable_python=true;;
-      --disable-python) enable_python=false;;
-      --enable-coverage) build_mode="coverage";;
-      -h|-help|--help) show_help=yes;;
-      *) echo "$0: unknown option $opt; try $0 --help"
-	  exit 1
-	  ;;
-  esac
+	optarg=`expr x"$opt" : 'x[^=]*=\(.*\)'`
+	case "$opt" in
+		CC=*|CFLAGS=*|GNATMAKE=*|LDFLAGS=*|CXX=*)
+			optvar=`expr x"$opt" : 'x\([^=]*\)=.*'`
+			eval $optvar=\"$optarg\"
+			;;
+		--prefix=*)             prefix="$optarg";;
+		--srcdir=*)             srcdir="$optarg";;
+		--with-gcc=*)           gcc_src_dir="$optarg";     backend=gcc;;
+		--with-llvm=*)
+			echo "--with-llvm is deprecated, use --with-llvm-config"
+			llvm_config="$optarg/bin/llvm-config";           backend=llvm;;
+		--with-llvm-config)     llvm_config="llvm-config"; backend=llvm;;
+		--with-llvm-config=*)   llvm_config="$optarg";     backend=llvm;;
+		--with-backtrace-lib=*) backtrace_lib="$optarg";;
+		--enable-werror)        enable_werror=true;;
+		--disable-werror)       enable_werror=false;;
+		--enable-checks)        enable_checks=true;;
+		--disable-checks)       enable_checks=false;;
+		--enable-openieee)      enable_openieee=true;;
+		--disable-openieee)     enable_openieee=false;;
+		--enable-python)        enable_python=true;;
+		--disable-python)       enable_python=false;;
+		--enable-coverage)      build_mode="coverage";;
+		-h|-help|--help)        show_help=yes;;
+		*)
+			echo "$0: unknown option $opt; try $0 --help"
+			exit 1
+			;;
+	esac
 done
 
 # Help
 if test $show_help != no; then
-cat <<EOF
+	cat <<EOF
 Usage: configure [options]
 
 Options [defaults in brackets]:
-  --prefix=PREFIX             install in PREFIX [$prefix]
-  --srcdir=SRCDIR             source code path [$srcdir]
-  --with-gcc=DIR              use gcc backend from DIR
-  --with-llvm-config=PATH     use llvm from PATH (needs llvm 3.5 - 3.9)
-  --with-backtrace-lib=LIB.a  link with libbacktrace LIB.a to display a
-                              backtrace on errors (only for llvm).
-  --disable-werror            warnings don't stop build
-  --disable-checks            disable internal checks
-  --enable-openieee           use gpl-compatible sources for ieee library
-  --enable-python             build python libghdl
+	--prefix=PREFIX             install in PREFIX [$prefix]
+	--srcdir=SRCDIR             source code path [$srcdir]
+	--with-gcc=DIR              use gcc backend from DIR
+	--with-llvm-config=PATH     use llvm from PATH (needs llvm 3.5 - 3.9)
+	--with-backtrace-lib=LIB.a  link with libbacktrace LIB.a to display a
+															backtrace on errors (only for llvm).
+	--disable-werror            warnings don't stop build
+	--disable-checks            disable internal checks
+	--enable-openieee           use gpl-compatible sources for ieee library
+	--enable-python             build python libghdl
 EOF
-exit 0
+	exit 0
 fi
 
 # Set abs_srcdir (absolute srcdir)
 case $srcdir in
-    /*) abs_srcdir=$srcdir;;
-    *)
-        # Use a Windows path on windows.
-        case "$OS" in
-            Windows_NT) curdir=`pwd -W 2>/dev/null || pwd` ;;
-            *) curdir=`pwd` ;;
-        esac
-        abs_srcdir=$curdir/$srcdir
-        ;;
+	/*) abs_srcdir=$srcdir;;
+	*)
+		# Use a Windows path on windows.
+		case "$OS" in
+			Windows_NT) curdir=`pwd -W 2>/dev/null || pwd` ;;
+			*) curdir=`pwd` ;;
+		esac
+		abs_srcdir=$curdir/$srcdir
+		;;
 esac
 
 # Sanity checks
 # Check srcdir
 pat="2019802090ed76fc5c54cec58f22a2c1"
 if ! grep $pat $srcdir/configure > /dev/null 2>&1; then
-    echo "Incorrect srcdir; try with --srcdir=xx"
-    echo "srcdir=$srcdir"
-    exit 1
+	echo "Incorrect srcdir; try with --srcdir=xx"
+	echo "srcdir=$srcdir"
+	exit 1
 fi
 
 if ! cmp $srcdir/configure $abs_srcdir/configure > /dev/null 2>&1; then
-    echo "Cannot compute absolute source dir (or incorrect srcdir)"
-    echo "srcdir=$srcdir"
-    echo "abs_srcdir=$abs_srcdir"
-    exit 1
+	echo "Cannot compute absolute source dir (or incorrect srcdir)"
+	echo "srcdir=$srcdir"
+	echo "abs_srcdir=$abs_srcdir"
+	exit 1
 fi
 # Check that gnatmake exists
 if ! $GNATMAKE --version >/dev/null 2>&1; then
-    echo "Sorry, you need GNAT to build GHDL.  See the README"
-    echo "(gnatmake executable is: $GNATMAKE)"
-    exit 1
+	echo "Sorry, you need GNAT to build GHDL.  See the README"
+	echo "(gnatmake executable is: $GNATMAKE)"
+	exit 1
 fi
 
 # Check that compiler exists
 if ! $CC -v 2> /dev/null; then
-    echo "Sorry, you need a C compiler to build GHDL.  See the README"
-    exit 1
+	echo "Sorry, you need a C compiler to build GHDL.  See the README"
+	exit 1
 fi
 
 # Default for enable_openieee
 if [ "$enable_openieee" = "unknown" ]; then
-    if test -d $srcdir/libraries/ieee ; then
-	enable_openieee=false
-	echo "Use full IEEE library"
-    else
-	enable_openieee=true
-	echo "Use openieee source files for IEEE library (but partial)"
-    fi
+	if test -d $srcdir/libraries/ieee ; then
+		enable_openieee=false
+		echo "Use full IEEE library"
+	else
+		enable_openieee=true
+		echo "Use openieee source files for IEEE library (but partial)"
+	fi
 elif [ "$enable_openieee" = false ]; then
-    if ! test -d $srcdir/libraries/ieee ; then
-	echo "Sorry, full ieee library source files not present"
-	echo "consider --enable-openieee"
-	exit 1
-    fi
+	if ! test -d $srcdir/libraries/ieee ; then
+		echo "Sorry, full ieee library source files not present"
+		echo "consider --enable-openieee"
+		exit 1
+	fi
 fi
 
 # Compute build machine
 if test x$build = x; then
-    build=`$CC $CFLAGS -dumpmachine`
+	build=`$CC $CFLAGS -dumpmachine`
 fi
 echo "Build machine is: $build"
 
 # For mcode, check that gcc emits i386
 if test $backend = mcode; then
-    gcc_machine=`$CC $CFLAGS -dumpmachine`
-    case "$gcc_machine" in
-	i[3-6]86*) mcode64="" ;;
-	x86_64*) mcode64="64" ;;
-	*)
-	  mcode64=""
-	  echo "WARNING: GHDL for mcode is supported only on x86"
-	  echo "continuing, but build failure expected (See the README)"
-	  ;;
-    esac
-    if test "x$backtrace_lib" != x ; then
-	echo "WARNING: --with-backtrace-lib= ignored with mcode"
-	backtrace_lib=
-    fi
+	gcc_machine=`$CC $CFLAGS -dumpmachine`
+	case "$gcc_machine" in
+		i[3-6]86*) mcode64="" ;;
+		x86_64*) mcode64="64" ;;
+		*)
+			mcode64=""
+			echo "WARNING: GHDL for mcode is supported only on x86"
+			echo "continuing, but build failure expected (See the README)"
+			;;
+	esac
+	if test "x$backtrace_lib" != x ; then
+		echo "WARNING: --with-backtrace-lib= ignored with mcode"
+		backtrace_lib=
+	fi
 fi
 
 # For gcc backend, check existing version
 if test $backend = gcc; then
-    if ! test -f $gcc_src_dir/gcc/BASE-VER; then
-	echo "cannot find gcc/BASE-VER in $gcc_src_dir"
-	exit 1
-    fi
-    if test "x$backtrace_lib" = x ; then
-	# Automatically use libbacktrace from gcc.
-	backtrace_lib="$prefix/$libdirsuffix/libbacktrace.a"
-    fi
+	if ! test -f $gcc_src_dir/gcc/BASE-VER; then
+		echo "cannot find gcc/BASE-VER in $gcc_src_dir"
+		exit 1
+	fi
+	if test "x$backtrace_lib" = x ; then
+		# Automatically use libbacktrace from gcc.
+		backtrace_lib="$prefix/$libdirsuffix/libbacktrace.a"
+	fi
 fi
 
 # For llvm backend, check llvm-config
@@ -227,7 +244,7 @@ if test $backend = llvm; then
 	     false; then
 		echo "Debugging is not enabled with llvm $llvm_version"
 		llvm_be=llvm-nodebug
-	# Tested with llvm 3.5, so assume 3.6, 3.7 and 3.8
+		# Tested with llvm 3.5, so assume 3.6, 3.7 and 3.8
 	elif check_version 3.9 $llvm_version ||
 	     check_version 4.0 $llvm_version ||
 	     check_version 5.0 $llvm_version ||
@@ -251,10 +268,9 @@ fi
 # Define default file extensions for Windows or Linux-like systems and
 # use -fPIC or not.
 case "$build" in
-    *mingw* | *cygwin*)
-              SOEXT=".dll";   EXEEXT=".exe"; PIC_FLAGS="";;
-    *darwin*) SOEXT=".dylib"; EXEEXT="";     PIC_FLAGS="";;
-    *)        SOEXT=".so";    EXEEXT="";     PIC_FLAGS="-fPIC";;
+	*mingw* | *cygwin*) SOEXT=".dll";   EXEEXT=".exe"; PIC_FLAGS="";;
+	*darwin*)           SOEXT=".dylib"; EXEEXT="";     PIC_FLAGS="";;
+	*)                  SOEXT=".so";    EXEEXT="";     PIC_FLAGS="-fPIC";;
 esac
 
 # Define libghdl_version
@@ -263,63 +279,63 @@ libghdl_version=`echo $ghdl_version | sed -e 's/[-.]/_/g'`
 # Check if gcc was configured with --enable-default-pie.  In that case -fPIC
 # should be added.
 if gcc -v 2>&1 | grep -q enable-default-pie; then
-    default_pie="yes"
+	default_pie="yes"
 else
-    default_pie="no"
+	default_pie="no"
 fi
 
 # Create subdirectories
 if [ ! -d pic ]; then
-    echo "create pic/ subdirectory"
-    if ! mkdir pic; then
-        echo "failed to create pic/"
-        exit 1;
-    fi
+	echo "create pic/ subdirectory"
+	if ! mkdir pic; then
+		echo "failed to create pic/"
+		exit 1;
+	fi
 fi
 
 # Generate config.status
 rm -f config.status
 {
-echo "#! /bin/sh"
-echo "# Generated by configure."
-echo "# Run this file to recreate the current configuration."
-echo
-echo 'if [ x"$1" = x"--reconfigure" ]; then'
-#  Do not use exec as bash 3.2 pass the absolute path in argv[0]
-echo $echon "   $progname"$echoc
-for opt do
-  echo $echon \ \"$opt\"$echoc
-done
-echo
-echo "  exit"
-echo 'fi'
-echo
-echo subst_vars=\"$subst_vars\"
-for v in $subst_vars; do
-    eval vval=\$$v
-    echo $v=\"$vval\"
-done
-sed_opts=`echo $subst_vars | sed -e "s/\\([a-zA-Z_]*\\)/ -e \"s%@\1@%\$\1%g\"/g"`
-subst_files="ghdl.gpr Makefile"
-if [ "$enable_python" = true ]; then
-    subst_files="$subst_files setup.py"
-fi
-echo "for f in $subst_files; do"
-echo '  echo "Creating $f"'
-echo "  sed $sed_opts" '< $srcdir/${f}.in > $f'
-echo "done"
+	echo "#! /bin/sh"
+	echo "# Generated by configure."
+	echo "# Run this file to recreate the current configuration."
+	echo
+	echo 'if [ x"$1" = x"--reconfigure" ]; then'
+	#  Do not use exec as bash 3.2 pass the absolute path in argv[0]
+	echo $echon "   $progname"$echoc
+	for opt do
+		echo $echon \ \"$opt\"$echoc
+	done
+	echo
+	echo "  exit"
+	echo 'fi'
+	echo
+	echo subst_vars=\"$subst_vars\"
+	for v in $subst_vars; do
+		eval vval=\$$v
+		echo $v=\"$vval\"
+	done
+	sed_opts=`echo $subst_vars | sed -e "s/\\([a-zA-Z_]*\\)/ -e \"s%@\1@%\$\1%g\"/g"`
+	subst_files="ghdl.gpr Makefile"
+	if [ "$enable_python" = true ]; then
+		subst_files="$subst_files setup.py"
+	fi
+	echo "for f in $subst_files; do"
+	echo '  echo "Creating $f"'
+	echo "  sed $sed_opts" '< $srcdir/${f}.in > $f'
+	echo "done"
 } > config.status || \
 {
-  echo "$progname: cannot create config.status"
-  exit 1
+	echo "$progname: cannot create config.status"
+	exit 1
 }
 
 chmod +x ./config.status
 
 # Run config.status to generate files
 if ! sh ./config.status; then
-    echo "$progname: cannot execute config.status"
-    exit 1
+	echo "$progname: cannot execute config.status"
+	exit 1
 fi
 
 # Create dirs
@@ -327,22 +343,22 @@ $MAKE create-dirs
 
 # Generate ortho_code-x86-flags
 if test $backend = mcode; then
-    case "$build" in
-	*darwin*) ortho_flags="Flags_Macosx${mcode64}" ;;
-	*mingw32*) ortho_flags="Flags_Windows${mcode64}" ;;
-	*linux*) ortho_flags="Flags_Linux${mcode64}" ;;
-	*) echo "Unsupported $build build for mcode"; exit 1;;
-    esac
-    echo "Generate ortho_code-x86-flags.ads"
-    {
-     echo "with Ortho_Code.X86.$ortho_flags;"
-     echo "package Ortho_Code.X86.Flags renames Ortho_Code.X86.$ortho_flags;"
-    } > ortho_code-x86-flags.ads
-    echo "Generate elf_arch.ads"
-    {
-	echo "with Elf_Arch${mcode64:-32};"
-	echo "package Elf_Arch renames Elf_Arch${mcode64:-32};"
-    } > elf_arch.ads
+	case "$build" in
+		*darwin*) ortho_flags="Flags_Macosx${mcode64}" ;;
+		*mingw32*) ortho_flags="Flags_Windows${mcode64}" ;;
+		*linux*) ortho_flags="Flags_Linux${mcode64}" ;;
+		*) echo "Unsupported $build build for mcode"; exit 1;;
+	esac
+	echo "Generate ortho_code-x86-flags.ads"
+	{
+		echo "with Ortho_Code.X86.$ortho_flags;"
+		echo "package Ortho_Code.X86.Flags renames Ortho_Code.X86.$ortho_flags;"
+	} > ortho_code-x86-flags.ads
+	echo "Generate elf_arch.ads"
+	{
+		echo "with Elf_Arch${mcode64:-32};"
+		echo "package Elf_Arch renames Elf_Arch${mcode64:-32};"
+	} > elf_arch.ads
 fi
 
 # Generate default_paths.ads
@@ -350,14 +366,14 @@ fi
 # template.
 echo "Generate default_paths.ads"
 sed -e "s%@COMPILER_GCC@%ghdl1-gcc$EXEEXT%" \
-    -e "s%@COMPILER_DEBUG@%ghdl1-debug$EXEEXT%" \
-    -e "s%@COMPILER_MCODE@%ghdl1-mcode$EXEEXT%" \
-    -e "s%@COMPILER_LLVM@%ghdl1-llvm$EXEEXT%" \
-    -e "s%@POST_PROCESSOR@%oread-$backend%" \
-    -e "s%@INSTALL_PREFIX@%$prefix%" \
-    -e "s%@LIB_PREFIX@%$libdirsuffix%" \
-    -e "s%@SOEXT@%$SOEXT%" \
-    -e "s%@default_pie@%$default_pie%" \
-    < $srcdir/src/ghdldrv/default_paths.ads.in > default_paths.ads
+		-e "s%@COMPILER_DEBUG@%ghdl1-debug$EXEEXT%" \
+		-e "s%@COMPILER_MCODE@%ghdl1-mcode$EXEEXT%" \
+		-e "s%@COMPILER_LLVM@%ghdl1-llvm$EXEEXT%" \
+		-e "s%@POST_PROCESSOR@%oread-$backend%" \
+		-e "s%@INSTALL_PREFIX@%$prefix%" \
+		-e "s%@LIB_PREFIX@%$libdirsuffix%" \
+		-e "s%@SOEXT@%$SOEXT%" \
+		-e "s%@default_pie@%$default_pie%" \
+		< $srcdir/src/ghdldrv/default_paths.ads.in > default_paths.ads
 
 exit 0