tools/bzip2: add `bzip2` binaries

`bzip2` is the standard executable for bzip2 compression

this includes development includes and both static and shared libs
(libbz2) which can be used by other packages

the initramfs generator offers the BZIP2 option but there was no
executable to support it, and worked only via side effect of having a
system-installed version of bzip2, which could be less predictable

Signed-off-by: Tony Butler <spudz76@gmail.com>
[ remove unintended change ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

4 files changed, 484 insertions, 0 deletions

diff --git a/tools/Makefile b/tools/Makefile
index bdd9f0a257..722d42b2c2 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -20,6 +20,9 @@ endif
 ifneq ($(CONFIG_SDK)$(CONFIG_PACKAGE_kmod-b43)$(CONFIG_BRCMSMAC_USE_FW_FROM_WL),)
   BUILD_B43_TOOLS = y
 endif
+ifneq ($(CONFIG_SDK)$(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),)
+  BUILD_BZIP2_TOOLS = y
+endif
 ifneq ($(CONFIG_SDK)$(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZ4),)
   BUILD_LZ4_TOOLS = y
 endif
@@ -66,6 +69,7 @@ tools-y += zlib
 tools-y += zstd
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS),y) += liblzo
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_B43_TOOLS),y) += b43-tools
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_BZIP2_TOOLS),y) += bzip2
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_ISL),y) += isl
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_LZ4_TOOLS),y) += lz4
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(BUILD_LZO_TOOLS),y) += lzop
diff --git a/tools/bzip2/Makefile b/tools/bzip2/Makefile
new file mode 100644
index 0000000000..0c5a92849a
--- /dev/null
+++ b/tools/bzip2/Makefile
@@ -0,0 +1,52 @@
+#
+# Copyright (C) 2022 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=bzip2
+PKG_VERSION:=1.0.8
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://sourceware.org/pub/bzip2
+PKG_HASH:=ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269
+
+PKG_LICENSE:=bzip2-1.0.8
+PKG_LICENSE_FILES:=LICENSE
+PKG_CPE_ID:=cpe:/a:bzip:bzip2
+
+HOST_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/host-build.mk
+
+HOSTCC := $(HOSTCC_NOCACHE)
+HOST_CFLAGS += $(HOST_FPIC)
+
+HOST_MAKE_FLAGS+= \
+	CFLAGS="$(HOST_CFLAGS)" \
+	LDFLAGS="$(HOST_LDFLAGS)" \
+	ENABLE_BIN_SHARED=1 \
+	ENABLE_BIN_STATIC=0 \
+	ENABLE_LIB_SHARED=1 \
+	ENABLE_LIB_STATIC=1 \
+	ENABLE_DEV=1 \
+	ENABLE_DOCS=1 \
+	ENABLE_TESTS=0 \
+	PREFIX="$(HOST_BUILD_PREFIX)"
+
+define Host/Configure
+endef
+
+define Host/Uninstall
+	$(call Host/Compile/Default,uninstall)
+	$(call Host/Compile/Default,clean)
+endef
+
+define Host/Clean
+endef
+
+$(eval $(call HostBuild))
diff --git a/tools/bzip2/patches/020-no-utime.patch b/tools/bzip2/patches/020-no-utime.patch
new file mode 100644
index 0000000000..d0cd4f0e35
--- /dev/null
+++ b/tools/bzip2/patches/020-no-utime.patch
@@ -0,0 +1,27 @@
+--- a/bzip2.c
++++ b/bzip2.c
+@@ -69,7 +69,6 @@
+ #if BZ_UNIX
+ #   include <fcntl.h>
+ #   include <sys/types.h>
+-#   include <utime.h>
+ #   include <unistd.h>
+ #   include <sys/stat.h>
+ #   include <sys/times.h>
+@@ -1051,12 +1050,12 @@ void applySavedTimeInfoToOutputFile ( Ch
+ {
+ #  if BZ_UNIX
+    IntNative      retVal;
+-   struct utimbuf uTimBuf;
++   struct timespec uTimBuf[2] = {};
+ 
+-   uTimBuf.actime = fileMetaInfo.st_atime;
+-   uTimBuf.modtime = fileMetaInfo.st_mtime;
++   uTimBuf[0].tv_sec = fileMetaInfo.st_atime;
++   uTimBuf[1].tv_sec = fileMetaInfo.st_mtime;
+ 
+-   retVal = utime ( dstName, &uTimBuf );
++   retVal = utimensat ( AT_FDCWD, dstName, uTimBuf , 0 );
+    ERROR_IF_NOT_ZERO ( retVal );
+ #  endif
+ }
diff --git a/tools/bzip2/patches/021-merge-and-improve-makefiles.patch b/tools/bzip2/patches/021-merge-and-improve-makefiles.patch
new file mode 100644
index 0000000000..9d98c34bdb
--- /dev/null
+++ b/tools/bzip2/patches/021-merge-and-improve-makefiles.patch
@@ -0,0 +1,401 @@
+--- a/bzip2.c
++++ b/bzip2.c
+@@ -54,7 +54,7 @@
+ #include <math.h>
+ #include <errno.h>
+ #include <ctype.h>
+-#include "bzlib.h"
++#include <bzlib.h>
+ 
+ #define ERROR_IF_EOF(i)       { if ((i) == EOF)  ioError(); }
+ #define ERROR_IF_NOT_ZERO(i)  { if ((i) != 0)    ioError(); }
+--- a/bzlib_private.h
++++ b/bzlib_private.h
+@@ -30,7 +30,7 @@
+ #include <string.h>
+ #endif
+ 
+-#include "bzlib.h"
++#include <bzlib.h>
+ 
+ 
+ 
+--- a/Makefile
++++ b/Makefile
+@@ -21,11 +21,38 @@
+ LDFLAGS=
+ 
+ BIGFILES=-D_FILE_OFFSET_BITS=64
+-CFLAGS=-Wall -Winline -O2 -g $(BIGFILES)
++CFLAGS_COMMON=-Wall -Winline -O2 -g $(BIGFILES) -I.
++CFLAGS_NOPIC=$(filter-out -O%,$(CFLAGS)) $(CFLAGS_COMMON)
++CFLAGS_PIC=$(filter-out -O%,$(CFLAGS)) -fpic -fPIC $(CFLAGS_COMMON)
+ 
+ # Where you want it installed when you do 'make install'
+-PREFIX=/usr/local
+-
++PREFIX?=/usr/local
++ENABLE_BIN_STATIC?=1
++ENABLE_BIN_SHARED?=1
++ENABLE_LIB_STATIC?=1
++ENABLE_LIB_SHARED?=1
++ENABLE_DEV?=1
++ENABLE_DOCS?=1
++ENABLE_TESTS?=1
++
++ifeq ($(ENABLE_BIN_STATIC),1)
++  ENABLE_BIN=1
++  ifneq ($(ENABLE_LIB_STATIC),1)
++    ENABLE_LIB_STATIC=1
++  endif
++endif
++ifeq ($(ENABLE_BIN_SHARED),1)
++  ENABLE_BIN=1
++  ifneq ($(ENABLE_LIB_SHARED),1)
++    ENABLE_LIB_STATIC=1
++  endif
++endif
++ifeq ($(ENABLE_LIB_STATIC),1)
++  ENABLE_LIB=1
++endif
++ifeq ($(ENABLE_LIB_SHARED),1)
++  ENABLE_LIB=1
++endif
+ 
+ OBJS= blocksort.o  \
+       huffman.o    \
+@@ -35,15 +62,38 @@
+       decompress.o \
+       bzlib.o
+ 
+-all: libbz2.a bzip2 bzip2recover test
+-
+-bzip2: libbz2.a bzip2.o
+-	$(CC) $(CFLAGS) $(LDFLAGS) -o bzip2 bzip2.o -L. -lbz2
++TGTS_all:=
++TGTS_bzip2:=bzip2.o
++TGTS_check:=
++TGTS_install:=
++ifeq ($(ENABLE_LIB),1)
++  TGTS_all+=libbz2
++  TGTS_bzip2+=libbz2
++endif
++ifeq ($(ENABLE_BIN),1)
++  TGTS_all+=bzip2 bzip2recover
++  TGTS_install+=bzip2 bzip2recover
++endif
++ifeq ($(ENABLE_TESTS),1)
++  TGTS_all+=test
++  TGTS_check+=test
++endif
++ 
++all: $(TGTS_all)
++
++bzip2: $(TGTS_bzip2)
++ifeq ($(ENABLE_BIN_STATIC),1)
++	$(CC) $(CFLAGS_NOPIC) $(LDFLAGS) -o bzip2 bzip2.o -L. -lbz2
++endif
++ifeq ($(ENABLE_BIN_SHARED),1)
++	$(CC) $(CFLAGS_PIC) -o bzip2-shared bzip2.o libbz2.so.1.0
++endif
+ 
+ bzip2recover: bzip2recover.o
+-	$(CC) $(CFLAGS) $(LDFLAGS) -o bzip2recover bzip2recover.o
++	$(CC) $(CFLAGS_NOPIC) $(LDFLAGS) -o bzip2recover bzip2recover.o
+ 
+-libbz2.a: $(OBJS)
++libbz2: $(OBJS)
++ifeq ($(ENABLE_LIB_STATIC),1)
+ 	rm -f libbz2.a
+ 	$(AR) cq libbz2.a $(OBJS)
+ 	@if ( test -f $(RANLIB) -o -f /usr/bin/ranlib -o \
+@@ -51,8 +101,18 @@
+ 		echo $(RANLIB) libbz2.a ; \
+ 		$(RANLIB) libbz2.a ; \
+ 	fi
++endif
++ifeq ($(ENABLE_LIB_SHARED),1)
++	$(CC) -shared -Wl,-soname -Wl,libbz2.so.1.0 $(LDFLAGS) -o libbz2.so.1.0.8 $(OBJS)
++	rm -f libbz2.so.1.0
++	rm -f libbz2.so.1
++	rm -f libbz2.so
++	ln -s libbz2.so.1.0.8 libbz2.so.1.0
++	ln -s libbz2.so.1.0 libbz2.so.1
++	ln -s libbz2.so.1 libbz2.so
++endif
+ 
+-check: test
++check: $(TGTS_check)
+ test: bzip2
+ 	@cat words1
+ 	./bzip2 -1  < sample1.ref > sample1.rb2
+@@ -69,69 +129,153 @@
+ 	cmp sample3.tst sample3.ref
+ 	@cat words3
+ 
+-install: bzip2 bzip2recover
++install: $(TGTS_install)
++ifeq ($(ENABLE_BIN),1)
+ 	if ( test ! -d $(PREFIX)/bin ) ; then mkdir -p $(PREFIX)/bin ; fi
++endif
++ifeq ($(ENABLE_LIB),1)
+ 	if ( test ! -d $(PREFIX)/lib ) ; then mkdir -p $(PREFIX)/lib ; fi
++endif
++ifeq ($(ENABLE_DEV),1)
++	if ( test ! -d $(PREFIX)/include ) ; then mkdir -p $(PREFIX)/include ; fi
++endif
++ifeq ($(ENABLE_DOCS),1)
+ 	if ( test ! -d $(PREFIX)/man ) ; then mkdir -p $(PREFIX)/man ; fi
+ 	if ( test ! -d $(PREFIX)/man/man1 ) ; then mkdir -p $(PREFIX)/man/man1 ; fi
+-	if ( test ! -d $(PREFIX)/include ) ; then mkdir -p $(PREFIX)/include ; fi
++endif
++ifeq ($(ENABLE_BIN),1)
++  ifeq ($(ENABLE_BIN_STATIC),1)
+ 	cp -f bzip2 $(PREFIX)/bin/bzip2
+-	cp -f bzip2 $(PREFIX)/bin/bunzip2
+-	cp -f bzip2 $(PREFIX)/bin/bzcat
++	chmod a+rx $(PREFIX)/bin/bzip2
++  endif
++  ifeq ($(ENABLE_BIN_SHARED),1)
++    ifeq ($(ENABLE_BIN_STATIC),1)
++	cp -f bzip2-shared $(PREFIX)/bin/bzip2-shared
++	chmod a+rx $(PREFIX)/bin/bzip2-shared
++    else
++	cp -f bzip2-shared $(PREFIX)/bin/bzip2
++    endif
++  endif
++	rm -f $(PREFIX)/bin/bunzip2
++	rm -f $(PREFIX)/bin/bzcat
++	( cd $(PREFIX)/bin && ln -s bzip2 bunzip2 )
++	( cd $(PREFIX)/bin && ln -s bzip2 bzcat )
++	rm -f $(PREFIX)/bin/bunzip2-shared
++	rm -f $(PREFIX)/bin/bzcat-shared
++  ifeq ($(ENABLE_BIN_SHARED),1)
++    ifeq ($(ENABLE_BIN_STATIC),1)
++	( cd $(PREFIX)/bin && ln -s bzip2-shared bunzip2-shared )
++	( cd $(PREFIX)/bin && ln -s bzip2-shared bzcat-shared )
++    endif
++  endif
+ 	cp -f bzip2recover $(PREFIX)/bin/bzip2recover
+-	chmod a+x $(PREFIX)/bin/bzip2
+-	chmod a+x $(PREFIX)/bin/bunzip2
+-	chmod a+x $(PREFIX)/bin/bzcat
+-	chmod a+x $(PREFIX)/bin/bzip2recover
+-	cp -f bzip2.1 $(PREFIX)/man/man1
+-	chmod a+r $(PREFIX)/man/man1/bzip2.1
+-	cp -f bzlib.h $(PREFIX)/include
+-	chmod a+r $(PREFIX)/include/bzlib.h
+-	cp -f libbz2.a $(PREFIX)/lib
+-	chmod a+r $(PREFIX)/lib/libbz2.a
++	chmod a+rx $(PREFIX)/bin/bzip2recover
+ 	cp -f bzgrep $(PREFIX)/bin/bzgrep
+-	ln -s -f $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzegrep
+-	ln -s -f $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzfgrep
+-	chmod a+x $(PREFIX)/bin/bzgrep
++	chmod a+rx $(PREFIX)/bin/bzgrep
++	rm -f $(PREFIX)/bin/bzegrep
++	rm -f $(PREFIX)/bin/bzfgrep
++	( cd $(PREFIX)/bin && ln -s bzgrep bzegrep )
++	( cd $(PREFIX)/bin && ln -s bzgrep bzfgrep )
+ 	cp -f bzmore $(PREFIX)/bin/bzmore
+-	ln -s -f $(PREFIX)/bin/bzmore $(PREFIX)/bin/bzless
+-	chmod a+x $(PREFIX)/bin/bzmore
++	chmod a+rx $(PREFIX)/bin/bzmore
++	rm -f $(PREFIX)/bin/bzless
++	( cd $(PREFIX)/bin && ln -s bzmore bzless )
++	rm -f $(PREFIX)/bin/bzcmp
+ 	cp -f bzdiff $(PREFIX)/bin/bzdiff
+-	ln -s -f $(PREFIX)/bin/bzdiff $(PREFIX)/bin/bzcmp
+-	chmod a+x $(PREFIX)/bin/bzdiff
+-	cp -f bzgrep.1 bzmore.1 bzdiff.1 $(PREFIX)/man/man1
+-	chmod a+r $(PREFIX)/man/man1/bzgrep.1
+-	chmod a+r $(PREFIX)/man/man1/bzmore.1
+-	chmod a+r $(PREFIX)/man/man1/bzdiff.1
++	chmod a+rx $(PREFIX)/bin/bzdiff
++	( cd $(PREFIX)/bin && ln -s bzdiff bzcmp )
++endif
++ifeq ($(ENABLE_DEV),1)
++	cp -f bzlib.h $(PREFIX)/include
++	chmod a+r $(PREFIX)/include/bzlib.h
++endif
++ifeq ($(ENABLE_DOCS),1)
++	cp -f bzip2.1 bzgrep.1 bzmore.1 bzdiff.1 $(PREFIX)/man/man1
+ 	echo ".so man1/bzgrep.1" > $(PREFIX)/man/man1/bzegrep.1
+ 	echo ".so man1/bzgrep.1" > $(PREFIX)/man/man1/bzfgrep.1
+ 	echo ".so man1/bzmore.1" > $(PREFIX)/man/man1/bzless.1
+ 	echo ".so man1/bzdiff.1" > $(PREFIX)/man/man1/bzcmp.1
++	chmod a+r $(PREFIX)/man/man1/bzip2.1
++	chmod a+r $(PREFIX)/man/man1/bzgrep.1
++	chmod a+r $(PREFIX)/man/man1/bzmore.1
++	chmod a+r $(PREFIX)/man/man1/bzdiff.1
++	chmod a+r $(PREFIX)/man/man1/bzegrep.1
++	chmod a+r $(PREFIX)/man/man1/bzfgrep.1
++	chmod a+r $(PREFIX)/man/man1/bzless.1
++	chmod a+r $(PREFIX)/man/man1/bzcmp.1
++endif
++ifeq ($(ENABLE_LIB_SHARED),1)
++	cp -f libbz2.so.1.0.8 $(PREFIX)/lib
++	chmod a+r $(PREFIX)/lib/libbz2.so.1.0.8
++	rm -f $(PREFIX)/lib/libbz2.so.1.0
++	rm -f $(PREFIX)/lib/libbz2.so.1
++	rm -f $(PREFIX)/lib/libbz2.so
++	( cd $(PREFIX)/lib && ln -s libbz2.so.1.0.8 libbz2.so.1.0 )
++	( cd $(PREFIX)/lib && ln -s libbz2.so.1.0 libbz2.so.1 )
++	( cd $(PREFIX)/lib && ln -s libbz2.so.1 libbz2.so )
++endif
++ifeq ($(ENABLE_LIB_STATIC),1)
++	cp -f libbz2.a $(PREFIX)/lib
++	chmod a+r $(PREFIX)/lib/libbz2.a
++endif
++
++uninstall:
++	rm -f $(PREFIX)/bin/bzip2
++	rm -f $(PREFIX)/bin/bzip2-shared
++	rm -f $(PREFIX)/bin/bunzip2
++	rm -f $(PREFIX)/bin/bzcat
++	rm -f $(PREFIX)/bin/bunzip2-shared
++	rm -f $(PREFIX)/bin/bzcat-shared
++	rm -f $(PREFIX)/bin/bzip2recover
++	rm -f $(PREFIX)/bin/bzgrep
++	rm -f $(PREFIX)/bin/bzegrep
++	rm -f $(PREFIX)/bin/bzfgrep
++	rm -f $(PREFIX)/bin/bzmore
++	rm -f $(PREFIX)/bin/bzless
++	rm -f $(PREFIX)/bin/bzdiff
++	rm -f $(PREFIX)/bin/bzcmp
++	rm -f $(PREFIX)/include/bzlib.h
++	rm -f $(PREFIX)/lib/libbz2.so.1.0.8
++	rm -f $(PREFIX)/lib/libbz2.so.1.0
++	rm -f $(PREFIX)/lib/libbz2.so.1
++	rm -f $(PREFIX)/lib/libbz2.so
++	rm -f $(PREFIX)/lib/libbz2.a
++	rm -f $(PREFIX)/man/man1/bzip2.1
++	rm -f $(PREFIX)/man/man1/bzgrep.1
++	rm -f $(PREFIX)/man/man1/bzmore.1
++	rm -f $(PREFIX)/man/man1/bzdiff.1
++	rm -f $(PREFIX)/man/man1/bzegrep.1
++	rm -f $(PREFIX)/man/man1/bzfgrep.1
++	rm -f $(PREFIX)/man/man1/bzless.1
++	rm -f $(PREFIX)/man/man1/bzcmp.1
++	(rmdir $(PREFIX)/bin $(PREFIX)/include $(PREFIX)/lib $(PREFIX)/man/man1 $(PREFIX)/man || true ) 2> /dev/null
+ 
+ clean: 
+-	rm -f *.o libbz2.a bzip2 bzip2recover \
++	rm -f $(OBJS) bzip2.o \
++	libbz2.so.1.0.8 libbz2.so.1.0 libbz2.so.1 libbz2.so \
++	libbz2.a bzip2 bzip2-shared bzip2recover \
+ 	sample1.rb2 sample2.rb2 sample3.rb2 \
+ 	sample1.tst sample2.tst sample3.tst
+ 
+ blocksort.o: blocksort.c
+ 	@cat words0
+-	$(CC) $(CFLAGS) -c blocksort.c
++	$(CC) $(CFLAGS_NOPIC) -c blocksort.c
+ huffman.o: huffman.c
+-	$(CC) $(CFLAGS) -c huffman.c
++	$(CC) $(CFLAGS_NOPIC) -c huffman.c
+ crctable.o: crctable.c
+-	$(CC) $(CFLAGS) -c crctable.c
++	$(CC) $(CFLAGS_NOPIC) -c crctable.c
+ randtable.o: randtable.c
+-	$(CC) $(CFLAGS) -c randtable.c
++	$(CC) $(CFLAGS_NOPIC) -c randtable.c
+ compress.o: compress.c
+-	$(CC) $(CFLAGS) -c compress.c
++	$(CC) $(CFLAGS_NOPIC) -c compress.c
+ decompress.o: decompress.c
+-	$(CC) $(CFLAGS) -c decompress.c
++	$(CC) $(CFLAGS_NOPIC) -c decompress.c
+ bzlib.o: bzlib.c
+-	$(CC) $(CFLAGS) -c bzlib.c
++	$(CC) $(CFLAGS_NOPIC) -c bzlib.c
+ bzip2.o: bzip2.c
+-	$(CC) $(CFLAGS) -c bzip2.c
++	$(CC) $(CFLAGS_NOPIC) -c bzip2.c
+ bzip2recover.o: bzip2recover.c
+-	$(CC) $(CFLAGS) -c bzip2recover.c
++	$(CC) $(CFLAGS_NOPIC) -c bzip2recover.c
+ 
+ 
+ distclean: clean
+@@ -189,7 +333,6 @@
+ 	   $(DISTNAME)/bzmore.1 \
+ 	   $(DISTNAME)/bzgrep \
+ 	   $(DISTNAME)/bzgrep.1 \
+-	   $(DISTNAME)/Makefile-libbz2_so \
+ 	   $(DISTNAME)/bz-common.xsl \
+ 	   $(DISTNAME)/bz-fo.xsl \
+ 	   $(DISTNAME)/bz-html.xsl \
+--- a/Makefile-libbz2_so
++++ b/Makefile-libbz2_so
+@@ -1,59 +0,0 @@
+-
+-# This Makefile builds a shared version of the library, 
+-# libbz2.so.1.0.8, with soname libbz2.so.1.0,
+-# at least on x86-Linux (RedHat 7.2), 
+-# with gcc-2.96 20000731 (Red Hat Linux 7.1 2.96-98).  
+-# Please see the README file for some important info 
+-# about building the library like this.
+-
+-# ------------------------------------------------------------------
+-# This file is part of bzip2/libbzip2, a program and library for
+-# lossless, block-sorting data compression.
+-#
+-# bzip2/libbzip2 version 1.0.8 of 13 July 2019
+-# Copyright (C) 1996-2019 Julian Seward <jseward@acm.org>
+-#
+-# Please read the WARNING, DISCLAIMER and PATENTS sections in the 
+-# README file.
+-#
+-# This program is released under the terms of the license contained
+-# in the file LICENSE.
+-# ------------------------------------------------------------------
+-
+-
+-SHELL=/bin/sh
+-CC=gcc
+-BIGFILES=-D_FILE_OFFSET_BITS=64
+-CFLAGS=-fpic -fPIC -Wall -Winline -O2 -g $(BIGFILES)
+-
+-OBJS= blocksort.o  \
+-      huffman.o    \
+-      crctable.o   \
+-      randtable.o  \
+-      compress.o   \
+-      decompress.o \
+-      bzlib.o
+-
+-all: $(OBJS)
+-	$(CC) -shared -Wl,-soname -Wl,libbz2.so.1.0 -o libbz2.so.1.0.8 $(OBJS)
+-	$(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.1.0.8
+-	rm -f libbz2.so.1.0
+-	ln -s libbz2.so.1.0.8 libbz2.so.1.0
+-
+-clean: 
+-	rm -f $(OBJS) bzip2.o libbz2.so.1.0.8 libbz2.so.1.0 bzip2-shared
+-
+-blocksort.o: blocksort.c
+-	$(CC) $(CFLAGS) -c blocksort.c
+-huffman.o: huffman.c
+-	$(CC) $(CFLAGS) -c huffman.c
+-crctable.o: crctable.c
+-	$(CC) $(CFLAGS) -c crctable.c
+-randtable.o: randtable.c
+-	$(CC) $(CFLAGS) -c randtable.c
+-compress.o: compress.c
+-	$(CC) $(CFLAGS) -c compress.c
+-decompress.o: decompress.c
+-	$(CC) $(CFLAGS) -c decompress.c
+-bzlib.o: bzlib.c
+-	$(CC) $(CFLAGS) -c bzlib.c
+--- a/unzcrash.c
++++ b/unzcrash.c
+@@ -30,7 +30,7 @@
+ 
+ #include <stdio.h>
+ #include <assert.h>
+-#include "bzlib.h"
++#include <bzlib.h>
+ 
+ #define M_BLOCK 1000000
+