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tools/bzip2: switch to cmake

Browse Source 
Fixes portability issues on macOS.
CMakeLists.txt is a stripped-down backport from bzip2 upstream

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2024-04-03 18:52:57 +02:00
parent 7a78b22dc8
commit 1f3e0177d9
3 changed files with 384 additions and 423 deletions
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24
tools/bzip2/Makefile
View File

@ -22,31 +22,11 @@ PKG_CPE_ID:=cpe:/a:bzip:bzip2
HOST_BUILD_PARALLEL:=1
include $(INCLUDE_DIR)/host-build.mk
include $(INCLUDE_DIR)/cmake.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
CMAKE_HOST_OPTIONS += -DENABLE_EXAMPLES=off
$(eval $(call HostBuild))

401
tools/bzip2/patches/021-merge-and-improve-makefiles.patch
View File

@ -1,401 +0,0 @@
--- 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

382
tools/bzip2/patches/100-cmake.patch Normal file
View File

@ -0,0 +1,382 @@
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,354 @@
+cmake_minimum_required(VERSION 3.12)
+
+project(bzip2
+ VERSION 1.0.8
+ DESCRIPTION "This Bzip2/libbz2 a program and library for lossless block-sorting data compression."
+ LANGUAGES C)
+
+# See versioning rule:
+# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+#
+# KEEP THESE IN SYNC WITH meson.build OR STUFF WILL BREAK!
+set(LT_CURRENT 1)
+set(LT_REVISION 8)
+set(LT_AGE 0)
+
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})
+
+include_directories(${PROJECT_BINARY_DIR})
+
+math(EXPR LT_SOVERSION "${LT_CURRENT} - ${LT_AGE}")
+set(LT_VERSION "${LT_SOVERSION}.${LT_AGE}.${LT_REVISION}")
+set(PACKAGE_VERSION ${PROJECT_VERSION})
+
+set(ENABLE_APP_DEFAULT ON)
+set(ENABLE_EXAMPLES_DEFAULT OFF)
+set(ENABLE_DOCS_DEFAULT OFF)
+include(CMakeOptions.txt)
+
+if(ENABLE_LIB_ONLY AND (ENABLE_APP OR ENABLE_EXAMPLES))
+ # Remember when disabled options are disabled for later diagnostics.
+ set(ENABLE_LIB_ONLY_DISABLED_OTHERS 1)
+else()
+ set(ENABLE_LIB_ONLY_DISABLED_OTHERS 0)
+endif()
+if(ENABLE_LIB_ONLY)
+ set(ENABLE_APP OFF)
+ set(ENABLE_EXAMPLES OFF)
+endif()
+
+# Do not disable assertions based on CMAKE_BUILD_TYPE.
+foreach(_build_type Release MinSizeRel RelWithDebInfo)
+ foreach(_lang C)
+ string(TOUPPER CMAKE_${_lang}_FLAGS_${_build_type} _var)
+ string(REGEX REPLACE "(^|)[/-]D *NDEBUG($|)" " " ${_var} "${${_var}}")
+ endforeach()
+endforeach()
+
+# Support the latest c++ standard available.
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
+
+function(extract_valid_c_flags varname)
+ set(valid_flags)
+ foreach(flag IN LISTS ARGN)
+ string(REGEX REPLACE "[^a-zA-Z0-9_]+" "_" flag_var ${flag})
+ set(flag_var "C_FLAG_${flag_var}")
+ check_c_compiler_flag("${flag}" "${flag_var}")
+ if(${flag_var})
+ set(valid_flags "${valid_flags} ${flag}")
+ endif()
+ endforeach()
+ set(${varname} "${valid_flags}" PARENT_SCOPE)
+endfunction()
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+ set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "Choose the build type" FORCE)
+
+ # Include "None" as option to disable any additional (optimization) flags,
+ # relying on just CMAKE_C_FLAGS and CMAKE_CXX_FLAGS (which are empty by
+ # default). These strings are presented in cmake-gui.
+ set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+ None Debug Release MinSizeRel RelWithDebInfo)
+endif()
+
+# Install a symlink of script to the "bin" directory.
+# Not intended for use on Windows.
+function(install_script_symlink original symlink)
+ add_custom_command(OUTPUT ${symlink}
+ COMMAND ${CMAKE_COMMAND} -E create_symlink ${original} ${symlink}
+ DEPENDS ${original}
+ COMMENT "Generating symbolic link ${symlink} of ${original}")
+ add_custom_target(${symlink}_tgt ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${symlink})
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${symlink} DESTINATION ${CMAKE_INSTALL_BINDIR})
+endfunction()
+
+# Install a symlink of binary target to the "bin" directory.
+# On Windows, it will be a copy instead of a symlink.
+function(install_target_symlink original symlink)
+ if(WIN32)
+ set(op copy)
+ set(symlink "${symlink}.exe")
+ else()
+ set(op create_symlink)
+ endif()
+ add_custom_command(TARGET ${original} POST_BUILD
+ COMMAND ${CMAKE_COMMAND} -E ${op} $<TARGET_FILE_NAME:${original}> ${symlink}
+ WORKING_DIRECTORY $<TARGET_FILE_DIR:${original}>
+ COMMENT "Generating symbolic link (or copy) ${symlink} of ${original}")
+ install(PROGRAMS $<TARGET_FILE_DIR:${original}>/${symlink} DESTINATION ${CMAKE_INSTALL_BINDIR})
+endfunction()
+
+include(GNUInstallDirs)
+
+# Checks for header files.
+include(CheckIncludeFile)
+check_include_file(arpa/inet.h HAVE_ARPA_INET_H)
+check_include_file(fcntl.h HAVE_FCNTL_H)
+check_include_file(inttypes.h HAVE_INTTYPES_H)
+check_include_file(limits.h HAVE_LIMITS_H)
+check_include_file(netdb.h HAVE_NETDB_H)
+check_include_file(netinet/in.h HAVE_NETINET_IN_H)
+check_include_file(pwd.h HAVE_PWD_H)
+check_include_file(sys/socket.h HAVE_SYS_SOCKET_H)
+check_include_file(sys/time.h HAVE_SYS_TIME_H)
+check_include_file(syslog.h HAVE_SYSLOG_H)
+check_include_file(time.h HAVE_TIME_H)
+check_include_file(unistd.h HAVE_UNISTD_H)
+
+include(CheckTypeSize)
+# Checks for typedefs, structures, and compiler characteristics.
+# AC_TYPE_SIZE_T
+check_type_size("ssize_t" SIZEOF_SSIZE_T)
+if(NOT SIZEOF_SSIZE_T)
+ # ssize_t is a signed type in POSIX storing at least -1.
+ # Set it to "int" to match the behavior of AC_TYPE_SSIZE_T (autotools).
+ set(ssize_t int)
+endif()
+
+include(CheckStructHasMember)
+check_struct_has_member("struct tm" tm_gmtoff time.h HAVE_STRUCT_TM_TM_GMTOFF)
+
+include(CheckSymbolExists)
+# XXX does this correctly detect initgroups (un)availability on cygwin?
+check_symbol_exists(initgroups grp.h HAVE_DECL_INITGROUPS)
+if(NOT HAVE_DECL_INITGROUPS AND HAVE_UNISTD_H)
+ # FreeBSD declares initgroups() in unistd.h
+ check_symbol_exists(initgroups unistd.h HAVE_DECL_INITGROUPS2)
+ if(HAVE_DECL_INITGROUPS2)
+ set(HAVE_DECL_INITGROUPS 1)
+ endif()
+endif()
+
+set(WARNCFLAGS)
+if(CMAKE_C_COMPILER_ID MATCHES "MSVC")
+ if(ENABLE_WERROR)
+ set(WARNCFLAGS /WX)
+ endif()
+else()
+ if(ENABLE_WERROR)
+ extract_valid_c_flags(WARNCFLAGS -Werror)
+ endif()
+
+ # For C compiler
+ # Please keep this list in sync with meson.build
+ extract_valid_c_flags(WARNCFLAGS
+ -Wall
+ -Wextra
+ -Wmissing-prototypes
+ -Wstrict-prototypes
+ -Wmissing-declarations
+ -Wpointer-arith
+ -Wdeclaration-after-statement
+ -Wformat-security
+ -Wwrite-strings
+ -Wshadow
+ -Winline
+ -Wnested-externs
+ -Wfloat-equal
+ -Wundef
+ -Wendif-labels
+ -Wempty-body
+ -Wcast-align
+ -Wclobbered
+ -Wvla
+ -Wpragmas
+ -Wunreachable-code
+ -Waddress
+ -Wattributes
+ -Wdiv-by-zero
+ -Wshorten-64-to-32
+ -Wconversion
+ -Wextended-offsetof
+ -Wformat-nonliteral
+ -Wlanguage-extension-token
+ -Wmissing-field-initializers
+ -Wmissing-noreturn
+ -Wmissing-variable-declarations
+ # -Wpadded # Not used because we cannot change public structs
+ -Wsign-conversion
+ # -Wswitch-enum # Not used because this basically disallows default case
+ -Wunreachable-code-break
+ -Wunused-macros
+ -Wunused-parameter
+ -Wredundant-decls
+ -Wheader-guard
+ -Wno-format-nonliteral # This is required because we pass format string as "const char*.
+ )
+endif()
+
+if(ENABLE_DEBUG)
+ set(DEBUGBUILD 1)
+endif()
+
+#add_definitions(-DHAVE_CONFIG_H)
+#configure_file(cmakeconfig.h.in config.h)
+
+# autotools-compatible names
+# Sphinx expects relative paths in the .rst files. Use the fact that the files
+# below are all one directory level deep.
+file(RELATIVE_PATH top_srcdir ${CMAKE_CURRENT_BINARY_DIR}/dir ${CMAKE_CURRENT_SOURCE_DIR})
+file(RELATIVE_PATH top_builddir ${CMAKE_CURRENT_BINARY_DIR}/dir ${CMAKE_CURRENT_BINARY_DIR})
+set(abs_top_srcdir ${CMAKE_CURRENT_SOURCE_DIR})
+set(abs_top_builddir ${CMAKE_CURRENT_BINARY_DIR})
+# bzip2.pc (pkg-config file)
+set(prefix ${CMAKE_INSTALL_PREFIX})
+set(exec_prefix ${CMAKE_INSTALL_PREFIX})
+set(bindir ${CMAKE_INSTALL_FULL_BINDIR})
+set(sbindir ${CMAKE_INSTALL_FULL_SBINDIR})
+set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
+set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+set(VERSION ${PACKAGE_VERSION})
+
+#
+# The build targets.
+# In a larger project, the following would be in subdirectories and
+# These targets would be included with `add_subdirectory()`
+#
+set(BZ2_SOURCES
+ blocksort.c
+ huffman.c
+ crctable.c
+ randtable.c
+ compress.c
+ decompress.c
+ bzlib.c)
+
+# The bz2 OBJECT-library, required for bzip2, bzip2recover.
+add_library(bz2_ObjLib OBJECT)
+target_sources(bz2_ObjLib
+ PRIVATE ${BZ2_SOURCES}
+ PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/bzlib_private.h
+ INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/bzlib.h)
+
+if(ENABLE_SHARED_LIB)
+ # The libbz2 shared library.
+ add_library(bz2 SHARED ${BZ2_RES})
+ target_sources(bz2
+ PRIVATE ${BZ2_SOURCES}
+ ${CMAKE_CURRENT_SOURCE_DIR}/libbz2.def
+ PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/bzlib_private.h
+ INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/bzlib.h)
+ # Always use '-fPIC'/'-fPIE' option for shared libraries.
+ set_property(TARGET bz2 PROPERTY POSITION_INDEPENDENT_CODE ON)
+ set_target_properties(bz2 PROPERTIES
+ COMPILE_FLAGS "${WARNCFLAGS}"
+ VERSION ${LT_VERSION} SOVERSION ${LT_SOVERSION})
+ install(TARGETS bz2 DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ install(FILES bzlib.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+ if(USE_OLD_SONAME)
+ # Hack to support the old libbz2.so.1.0 version by including an extra copy.
+ # Technically the old SONAME is not libtool compatible.
+ # This hack is to support binary compatibility with libbz2 in some distro packages.
+ if(UNIX AND NOT APPLE)
+ add_library(bz2_old_soname SHARED ${BZ2_RES})
+ target_sources(bz2_old_soname
+ PRIVATE ${BZ2_SOURCES}
+ ${CMAKE_CURRENT_SOURCE_DIR}/libbz2.def
+ PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/bzlib_private.h
+ INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/bzlib.h
+ )
+ set_target_properties(bz2_old_soname PROPERTIES
+ COMPILE_FLAGS "${WARNCFLAGS}"
+ VERSION ${LT_SOVERSION}.${LT_AGE} SOVERSION ${LT_SOVERSION}.${LT_AGE}
+ OUTPUT_NAME bz2
+ )
+ install(TARGETS bz2_old_soname DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
+ endif()
+endif()
+
+if(ENABLE_STATIC_LIB)
+ # The libbz2 static library.
+ add_library(bz2_static STATIC)
+ target_sources(bz2_static
+ PRIVATE ${BZ2_SOURCES}
+ PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/bzlib_private.h
+ INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/bzlib.h)
+ set_target_properties(bz2_static PROPERTIES
+ COMPILE_FLAGS "${WARNCFLAGS}"
+ VERSION ${LT_VERSION}
+ SOVERSION ${LT_SOVERSION}
+ ARCHIVE_OUTPUT_NAME bz2_static)
+ target_compile_definitions(bz2_static PUBLIC BZ2_STATICLIB)
+ install(TARGETS bz2_static DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ install(FILES bzlib.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+endif()
+
+if(ENABLE_APP)
+ # The bzip2 executable.
+ add_executable(bzip2)
+ target_sources(bzip2
+ PRIVATE bzip2.c)
+ target_link_libraries(bzip2
+ PRIVATE bz2_ObjLib)
+ if(WIN32)
+ target_compile_definitions(bzip2 PUBLIC BZ_LCCWIN32 BZ_UNIX=0)
+ else()
+ target_compile_definitions(bzip2 PUBLIC BZ_LCCWIN32=0 BZ_UNIX)
+ endif()
+ install(TARGETS bzip2 DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+ # Create bzip2 copies bzcat and bunzip.
+ # The default behavior is altered in bzip2.c code by checking the program name.
+ install_target_symlink(bzip2 bzcat)
+ install_target_symlink(bzip2 bunzip)
+
+ # The bzip2recover executable.
+ add_executable(bzip2recover)
+ target_sources(bzip2recover
+ PRIVATE bzip2recover.c)
+ target_link_libraries(bzip2recover
+ PRIVATE bz2_ObjLib)
+ if(WIN32)
+ target_compile_definitions(bzip2recover PUBLIC BZ_LCCWIN32 BZ_UNIX=0)
+ else()
+ target_compile_definitions(bzip2recover PUBLIC BZ_LCCWIN32=0 BZ_UNIX)
+ endif()
+ install(TARGETS bzip2recover DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+ if(ENABLE_EXAMPLES)
+ if(ENABLE_SHARED_LIB)
+ # The dlltest executable.
+ add_executable(dlltest)
+ target_sources(dlltest
+ PRIVATE dlltest.c)
+ target_link_libraries(dlltest bz2)
+ install(TARGETS dlltest DESTINATION ${CMAKE_INSTALL_BINDIR})
+ endif()
+ endif()
+
+ if(NOT WIN32)
+ # Install shell scripts, and renamed copies.
+ install(PROGRAMS bzdiff bzgrep bzmore
+ DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+ install_script_symlink(bzdiff bzcmp)
+
+ install_script_symlink(bzgrep bzegrep)
+ install_script_symlink(bzgrep bzfgrep)
+
+ install_script_symlink(bzmore bzless)
+ endif()
+
+endif()
--- /dev/null
+++ b/CMakeOptions.txt
@@ -0,0 +1,22 @@
+# Features that can be enabled for cmake (see CMakeLists.txt)
+
+option(ENABLE_WERROR "Turn on compile time warnings")
+
+option(ENABLE_DEBUG "Turn on debug output")
+
+option(ENABLE_APP "Build applications (bzip2, and bzip2recover)"
+ ${ENABLE_APP_DEFAULT})
+
+option(ENABLE_DOCS "Generate documentation"
+ ${ENABLE_DOCS_DEFAULT})
+
+option(ENABLE_EXAMPLES "Build examples"
+ ${ENABLE_EXAMPLES_DEFAULT})
+
+option(ENABLE_LIB_ONLY "Build libbz2 only. This is a short hand for -DENABLE_APP=0 -DENABLE_EXAMPLES=0")
+
+option(ENABLE_STATIC_LIB "Build libbz2 in static mode also")
+
+option(ENABLE_SHARED_LIB "Build libbz2 as a shared library" ON)
+
+option(USE_OLD_SONAME "Use libbz2.so.1.0 for compatibility with old Makefiles" OFF)