# -*- Autoconf -*- # Process this file with autoconf to produce a configure script. ############################################################################### # # Author: Lasse Collin # # This file has been put into the public domain. # You can do whatever you want with this file. # ############################################################################### # NOTE: Don't add useless checks. autoscan detects this and that, but don't # let it confuse you. For example, we don't care about checking for behavior # of malloc(), stat(), or lstat(), since we don't use those functions in # a way that would cause the problems the autoconf macros check. AC_PREREQ([2.64]) AC_INIT([XZ Utils], m4_esyscmd([/bin/sh version.sh]), [lasse.collin@tukaani.org], [xz], [http://tukaani.org/xz/]) AC_CONFIG_SRCDIR([src/liblzma/common/common.h]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_HEADER([config.h]) echo echo "$PACKAGE_STRING" echo echo "System type:" # This is needed to know if assembler optimizations can be used. AC_CANONICAL_HOST # We do some special things on Windows (32-bit or 64-bit) builds. case $host_os in mingw* | cygwin*) is_w32=yes ;; *) is_w32=no ;; esac AM_CONDITIONAL([COND_W32], [test "$is_w32" = yes]) # We need to use $EXEEXT with $(LN_S) when creating symlinks to # executables. Cygwin is an exception to this, since it is recommended # that symlinks don't have the .exe suffix. To make this work, we # define LN_EXEEXT. case $host_os in cygwin) LN_EXEEXT= ;; *) LN_EXEEXT='$(EXEEXT)' ;; esac AC_SUBST([LN_EXEEXT]) echo echo "Configure options:" AM_CFLAGS= ############# # Debugging # ############# AC_MSG_CHECKING([if debugging code should be compiled]) AC_ARG_ENABLE([debug], AC_HELP_STRING([--enable-debug], [Enable debugging code.]), [], enable_debug=no) if test "x$enable_debug" = xyes; then AC_MSG_RESULT([yes]) else AC_DEFINE([NDEBUG], [1], [Define to 1 to disable debugging code.]) AC_MSG_RESULT([no]) fi ########### # Filters # ########### m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,sparc])dnl m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,sparc]) m4_define([LZ_FILTERS], [lzma1,lzma2]) m4_foreach([NAME], [SUPPORTED_FILTERS], [enable_filter_[]NAME=no enable_encoder_[]NAME=no enable_decoder_[]NAME=no ])dnl AC_MSG_CHECKING([which encoders to build]) AC_ARG_ENABLE([encoders], AC_HELP_STRING([--enable-encoders=LIST], [Comma-separated list of encoders to build. Default=all. Available encoders:] m4_translit(m4_defn([SUPPORTED_FILTERS]), [,], [ ])), [], [enable_encoders=SUPPORTED_FILTERS]) enable_encoders=`echo "$enable_encoders" | sed 's/,/ /g'` if test "x$enable_encoders" = xno || test "x$enable_encoders" = x; then AC_MSG_RESULT([(none)]) else AC_DEFINE([HAVE_ENCODER], [1], [Define to 1 if encoder components are enabled.]) for arg in $enable_encoders do case $arg in m4_foreach([NAME], [SUPPORTED_FILTERS], [ NAME) enable_filter_[]NAME=yes enable_encoder_[]NAME=yes AC_DEFINE(HAVE_ENCODER_[]m4_toupper(NAME), [1], [Define to 1 if] NAME [encoder is enabled.]) ;;]) *) AC_MSG_RESULT([]) AC_MSG_ERROR([unknown filter: $arg]) ;; esac done AC_MSG_RESULT([$enable_encoders]) fi AC_MSG_CHECKING([which decoders to build]) AC_ARG_ENABLE([decoders], AC_HELP_STRING([--enable-decoders=LIST], [Comma-separated list of decoders to build. Default=all. Available decoders are the same as available encoders.]), [], [enable_decoders=SUPPORTED_FILTERS]) enable_decoders=`echo "$enable_decoders" | sed 's/,/ /g'` if test "x$enable_decoders" = xno || test "x$enable_decoders" = x; then AC_MSG_RESULT([(none)]) else AC_DEFINE([HAVE_DECODER], [1], [Define to 1 if decoder components are enabled.]) for arg in $enable_decoders do case $arg in m4_foreach([NAME], [SUPPORTED_FILTERS], [ NAME) enable_filter_[]NAME=yes enable_decoder_[]NAME=yes AC_DEFINE(HAVE_DECODER_[]m4_toupper(NAME), [1], [Define to 1 if] NAME [decoder is enabled.]) ;;]) *) AC_MSG_RESULT([]) AC_MSG_ERROR([unknown filter: $arg]) ;; esac done # LZMA2 requires that LZMA1 is enabled. test "x$enable_encoder_lzma2" = xyes && enable_encoder_lzma1=yes test "x$enable_decoder_lzma2" = xyes && enable_decoder_lzma1=yes AC_MSG_RESULT([$enable_decoders]) fi if test "x$enable_encoder_lzma2$enable_encoder_lzma1" = xyesno \ || test "x$enable_decoder_lzma2$enable_decoder_lzma1" = xyesno; then AC_MSG_ERROR([LZMA2 requires that LZMA1 is also enabled.]) fi AM_CONDITIONAL(COND_MAIN_ENCODER, test "x$enable_encoders" != xno && test "x$enable_encoders" != x) AM_CONDITIONAL(COND_MAIN_DECODER, test "x$enable_decoders" != xno && test "x$enable_decoders" != x) m4_foreach([NAME], [SUPPORTED_FILTERS], [AM_CONDITIONAL(COND_FILTER_[]m4_toupper(NAME), test "x$enable_filter_[]NAME" = xyes) AM_CONDITIONAL(COND_ENCODER_[]m4_toupper(NAME), test "x$enable_encoder_[]NAME" = xyes) AM_CONDITIONAL(COND_DECODER_[]m4_toupper(NAME), test "x$enable_decoder_[]NAME" = xyes) ])dnl # The so called "simple filters" share common code. enable_filter_simple=no enable_encoder_simple=no enable_decoder_simple=no m4_foreach([NAME], [SIMPLE_FILTERS], [test "x$enable_filter_[]NAME" = xyes && enable_filter_simple=yes test "x$enable_encoder_[]NAME" = xyes && enable_encoder_simple=yes test "x$enable_decoder_[]NAME" = xyes && enable_decoder_simple=yes ])dnl AM_CONDITIONAL(COND_FILTER_SIMPLE, test "x$enable_filter_simple" = xyes) AM_CONDITIONAL(COND_ENCODER_SIMPLE, test "x$enable_encoder_simple" = xyes) AM_CONDITIONAL(COND_DECODER_SIMPLE, test "x$enable_decoder_simple" = xyes) # LZ-based filters share common code. enable_filter_lz=no enable_encoder_lz=no enable_decoder_lz=no m4_foreach([NAME], [LZ_FILTERS], [test "x$enable_filter_[]NAME" = xyes && enable_filter_lz=yes test "x$enable_encoder_[]NAME" = xyes && enable_encoder_lz=yes test "x$enable_decoder_[]NAME" = xyes && enable_decoder_lz=yes ])dnl AM_CONDITIONAL(COND_FILTER_LZ, test "x$enable_filter_lz" = xyes) AM_CONDITIONAL(COND_ENCODER_LZ, test "x$enable_encoder_lz" = xyes) AM_CONDITIONAL(COND_DECODER_LZ, test "x$enable_decoder_lz" = xyes) ################# # Match finders # ################# m4_define([SUPPORTED_MATCH_FINDERS], [hc3,hc4,bt2,bt3,bt4]) m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS], [enable_match_finder_[]NAME=no ]) AC_MSG_CHECKING([which match finders to build]) AC_ARG_ENABLE([match-finders], AC_HELP_STRING([--enable-match-finders=LIST], [Comma-separated list of match finders to build. Default=all. At least one match finder is required for encoding with the LZMA1 and LZMA2 filters. Available match finders:] m4_translit(m4_defn([SUPPORTED_MATCH_FINDERS]), [,], [ ])), [], [enable_match_finders=SUPPORTED_MATCH_FINDERS]) enable_match_finders=`echo "$enable_match_finders" | sed 's/,/ /g'` if test "x$enable_encoder_lz" = xyes ; then for arg in $enable_match_finders do case $arg in m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS], [ NAME) enable_match_finder_[]NAME=yes AC_DEFINE(HAVE_MF_[]m4_toupper(NAME), [1], [Define to 1 to enable] NAME [match finder.]) ;;]) *) AC_MSG_RESULT([]) AC_MSG_ERROR([unknown match finder: $arg]) ;; esac done AC_MSG_RESULT([$enable_match_finders]) else AC_MSG_RESULT([(none because not building any LZ-based encoder)]) fi #################### # Integrity checks # #################### m4_define([SUPPORTED_CHECKS], [crc32,crc64,sha256]) m4_foreach([NAME], [SUPPORTED_FILTERS], [enable_check_[]NAME=no ])dnl AC_MSG_CHECKING([which integrity checks to build]) AC_ARG_ENABLE([checks], AC_HELP_STRING([--enable-checks=LIST], [Comma-separated list of integrity checks to build. Default=all. Available integrity checks:] m4_translit(m4_defn([SUPPORTED_CHECKS]), [,], [ ])), [], [enable_checks=SUPPORTED_CHECKS]) enable_checks=`echo "$enable_checks" | sed 's/,/ /g'` if test "x$enable_checks" = xno || test "x$enable_checks" = x; then AC_MSG_RESULT([(none)]) else for arg in $enable_checks do case $arg in m4_foreach([NAME], [SUPPORTED_CHECKS], [ NAME) enable_check_[]NAME=yes AC_DEFINE(HAVE_CHECK_[]m4_toupper(NAME), [1], [Define to 1 if] NAME [integrity check is enabled.]) ;;]) *) AC_MSG_RESULT([]) AC_MSG_ERROR([unknown integrity check: $arg]) ;; esac done AC_MSG_RESULT([$enable_checks]) fi if test "x$enable_checks_crc32" = xno ; then AC_MSG_ERROR([For now, the CRC32 check must always be enabled.]) fi m4_foreach([NAME], [SUPPORTED_CHECKS], [AM_CONDITIONAL(COND_CHECK_[]m4_toupper(NAME), test "x$enable_check_[]NAME" = xyes) ])dnl ########################### # Assembler optimizations # ########################### AC_MSG_CHECKING([if assembler optimizations should be used]) AC_ARG_ENABLE([assembler], AC_HELP_STRING([--disable-assembler], [Do not use assembler optimizations even if such exist for the architecture.]), [], [enable_assembler=yes]) if test "x$enable_assembler" = xyes; then enable_assembler=no case $host_os in # Darwin should work too but only if not creating universal # binaries. Solaris x86 could work too but I cannot test. linux* | *bsd* | mingw* | cygwin*) case $host_cpu in i?86) enable_assembler=x86 ;; x86_64) enable_assembler=x86_64 ;; esac ;; esac fi case $enable_assembler in x86 | x86_64 | no) AC_MSG_RESULT([$enable_assembler]) ;; *) AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', \`x86', or \`x86_64'.]) ;; esac AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86) AM_CONDITIONAL(COND_ASM_X86_64, test "x$enable_assembler" = xx86_64) ##################### # Size optimization # ##################### AC_MSG_CHECKING([if small size is preferred over speed]) AC_ARG_ENABLE([small], AC_HELP_STRING([--enable-small], [Make liblzma smaller and a little slower. This is disabled by default to optimize for speed.]), [], [enable_small=no]) if test "x$enable_small" = xyes; then AC_DEFINE([HAVE_SMALL], [1], [Define to 1 if optimizing for size.]) elif test "x$enable_small" != xno; then AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-small accepts only \`yes' or \`no']) fi AC_MSG_RESULT([$enable_small]) AM_CONDITIONAL(COND_SMALL, test "x$enable_small" = xyes) ############# # Threading # ############# AC_MSG_CHECKING([if threading support is wanted]) AC_ARG_ENABLE([threads], AC_HELP_STRING([--disable-threads], [Disable threading support. This makes some things thread-unsafe.]), [], [enable_threads=yes]) if test "x$enable_threads" != xyes && test "x$enable_threads" != xno; then AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-threads accepts only \`yes' or \`no']) fi AC_MSG_RESULT([$enable_threads]) # We use the actual result a little later. ######################### # Assumed amount of RAM # ######################### # We use 128 MiB as default, because it will allow decompressing files # created with "xz -9". It would be slightly safer to guess a lower value, # but most systems, on which we don't have any way to determine the amount # of RAM, will probably have at least 128 MiB of RAM. AC_MSG_CHECKING([how much RAM to assume if the real amount is unknown]) AC_ARG_ENABLE([assume-ram], AC_HELP_STRING([--enable-assume-ram=SIZE], [If and only if the real amount of RAM cannot be determined, assume SIZE MiB. The default is 128 MiB. This affects the default memory usage limit.]), [], [enable_assume_ram=128]) assume_ram_check=`echo "$enable_assume_ram" | tr -d 0123456789` if test -z "$enable_assume_ram" || test -n "$assume_ram_check"; then AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-assume-ram accepts only an integer argument]) fi AC_MSG_RESULT([$enable_assume_ram MiB]) AC_DEFINE_UNQUOTED([ASSUME_RAM], [$enable_assume_ram], [How many MiB of RAM to assume if the real amount cannot be determined.]) ############################################ # xz/xzdec/lzmadec linkage against liblzma # ############################################ # Link the xz, xzdec, and lzmadec command line tools against static liblzma # unless using --enable-dynamic. Using static liblzma gives a little bit # faster executable on x86, because no register is wasted for PIC. We also # have one dependency less, which allows users to more freely copy the xz # binary to other boxes. However, I wouldn't be surprised if distro # maintainers still prefer dynamic linking, so let's make it easy for them. AC_MSG_CHECKING([how programs should be linked against liblzma]) AC_ARG_ENABLE([dynamic], [AC_HELP_STRING([--enable-dynamic=TYPE], [Set how command line tools are linked against liblzma. TYPE can be mixed, yes, or no. The default is mixed.])], [], [enable_dynamic=mixed]) case $enable_dynamic in mixed) AC_MSG_RESULT([mixed (some dynamically, some statically)]) ;; yes) AC_MSG_RESULT([dynamically]) ;; no) AC_MSG_RESULT([statically]) ;; *) AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-dynamic accepts only \`mixed', \`yes', or \`no']) ;; esac # We use the actual results later, because we don't know yet # if --disable-shared or --disable-static was used. ############################################################################### # Checks for programs. ############################################################################### echo gl_POSIX_SHELL if test -z "$POSIX_SHELL" ; then AC_MSG_ERROR([No POSIX conforming shell (sh) was found.]) fi echo echo "Initializing Automake:" AM_INIT_AUTOMAKE([1.10 foreign tar-v7 filename-length-max=99]) AC_PROG_LN_S AC_PROG_CC_C99 if test x$ac_cv_prog_cc_c99 = xno ; then AC_MSG_ERROR([No C99 compiler was found.]) fi AM_PROG_CC_C_O AM_PROG_AS AC_USE_SYSTEM_EXTENSIONS if test "x$enable_threads" = xyes; then echo echo "Threading support:" ACX_PTHREAD LIBS="$LIBS $PTHREAD_LIBS" AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS" CC="$PTHREAD_CC" fi echo echo "Initializing Libtool:" LT_PREREQ([2.2]) LT_INIT([win32-dll]) LT_LANG([Windows Resource]) # This is a bit wrong since it is possible to request that only some libs # are built as shared. Using that feature isn't so common though, and this # breaks only on Windows (at least for now) if the user enables only some # libs as shared. AM_CONDITIONAL([COND_SHARED], [test "x$enable_shared" != xno]) ############################################################################### # Checks for libraries. ############################################################################### echo echo "Initializing gettext:" AM_GNU_GETTEXT_VERSION([0.16.1]) AM_GNU_GETTEXT([external]) ############################################################################### # Checks for header files. ############################################################################### echo echo "System headers and functions:" # There is currently no workarounds in this package if some of # these headers are missing. AC_CHECK_HEADERS([fcntl.h limits.h sys/time.h], [], [AC_MSG_ERROR([Required header file(s) are missing.])]) ############################################################################### # Checks for typedefs, structures, and compiler characteristics. ############################################################################### dnl We don't need these as long as we need a C99 compiler anyway. dnl AC_C_INLINE dnl AC_C_RESTRICT AC_HEADER_STDBOOL AC_TYPE_UINT8_T AC_TYPE_UINT16_T AC_TYPE_INT32_T AC_TYPE_UINT32_T AC_TYPE_INT64_T AC_TYPE_UINT64_T AC_TYPE_UINTPTR_T AC_CHECK_SIZEOF([size_t]) # The command line tool can copy high resolution timestamps if such # information is availabe in struct stat. Otherwise one second accuracy # is used. AC_CHECK_MEMBERS([ struct stat.st_atim.tv_nsec, struct stat.st_atimespec.tv_nsec, struct stat.st_atimensec, struct stat.st_uatime, struct stat.st_atim.st__tim.tv_nsec]) AC_SYS_LARGEFILE AC_C_BIGENDIAN ############################################################################### # Checks for library functions. ############################################################################### # Gnulib replacements as needed gl_GETOPT # Find the best function to set timestamps. AC_CHECK_FUNCS([futimens futimes futimesat utimes utime], [break]) TUKLIB_PROGNAME TUKLIB_INTEGER TUKLIB_PHYSMEM TUKLIB_CPUCORES ############################################################################### # If using GCC, set some additional AM_CFLAGS: ############################################################################### if test "$GCC" = yes ; then echo echo "GCC extensions:" fi # Always do the visibility check but don't set AM_CFLAGS on Windows. # This way things get set properly even on Windows. gl_VISIBILITY if test -n "$CFLAG_VISIBILITY" && test "$is_w32" = no; then AM_CFLAGS="$AM_CFLAGS $CFLAG_VISIBILITY" fi if test "$GCC" = yes ; then # Enable as much warnings as possible. These commented warnings won't # work for this package though: # * -Wunreachable-code breaks several assert(0) cases, which are # backed up with "return LZMA_PROG_ERROR". # * -Wcast-qual would break various things where we need a non-const # pointer although we don't modify anything through it. # * -Wcast-align breaks optimized CRC32 and CRC64 implementation # on some architectures (not on x86), where this warning is bogus, # because we take care of correct alignment. # * -Winline, -Wdisabled-optimization, -Wunsafe-loop-optimizations # don't seem so useful here; at least the last one gives some # warnings which are not bugs. for NEW_FLAG in \ -Wall \ -Wextra \ -Wformat=2 \ -Winit-self \ -Wmissing-include-dirs \ -Wstrict-aliasing \ -Wfloat-equal \ -Wundef \ -Wshadow \ -Wpointer-arith \ -Wbad-function-cast \ -Wwrite-strings \ -Wlogical-op \ -Waggregate-return \ -Wstrict-prototypes \ -Wold-style-definition \ -Wmissing-prototypes \ -Wmissing-declarations \ -Wmissing-noreturn \ -Wredundant-decls do AC_MSG_CHECKING([if $CC accepts $NEW_FLAG]) OLD_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $NEW_FLAG" AC_COMPILE_IFELSE([void foo(void) { }], [ AM_CFLAGS="$AM_CFLAGS $NEW_FLAG" AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([no]) ]) CFLAGS="$OLD_CFLAGS" done AC_ARG_ENABLE([werror], AC_HELP_STRING([--enable-werror], [Enable -Werror to abort compilation on all compiler warnings.]), [], [enable_werror=no]) if test "x$enable_werror" = "xyes"; then AM_CFLAGS="$AM_CFLAGS -Werror" fi fi ############################################################################### # Create the makefiles and config.h ############################################################################### echo # Don't build the lib directory at all if we don't need any replacement # functions. AM_CONDITIONAL([COND_GNULIB], test -n "$LIBOBJS") # Add default AM_CFLAGS. AC_SUBST([AM_CFLAGS]) # Set additional flags for static/dynamic linking. The idea is that every # program (not library) being built will use either STATIC_{CPPFLAGS,LDFLAGS} # or DYNAMIC_{CPPFLAGS,LDFLAGS} depending on which type of linkage is # preferred. These preferences get overridden by use of --disable-static, # --disable-shared, or --enable-dynamic. # # This is quite messy, because we want to use LZMA_API_STATIC when linking # against static liblzma. It's needed on Windows. if test "x$enable_static" = xno; then enable_dynamic=yes fi if test "x$enable_shared" = xno; then enable_dynamic=no fi case $enable_dynamic in yes) STATIC_CPPFLAGS= STATIC_LDFLAGS= DYNAMIC_CPPFLAGS= DYNAMIC_LDFLAGS= ;; mixed) STATIC_CPPFLAGS="-DLZMA_API_STATIC" STATIC_LDFLAGS="-static" DYNAMIC_CPPFLAGS= DYNAMIC_LDFLAGS= ;; no) STATIC_CPPFLAGS="-DLZMA_API_STATIC" STATIC_LDFLAGS="-static" DYNAMIC_CPPFLAGS="-DLZMA_API_STATIC" DYNAMIC_LDFLAGS="-static" ;; esac AC_SUBST([STATIC_CPPFLAGS]) AC_SUBST([STATIC_LDFLAGS]) AC_SUBST([DYNAMIC_CPPFLAGS]) AC_SUBST([DYNAMIC_LDFLAGS]) # This is needed for src/scripts. xz=`echo xz | sed "$program_transform_name"` AC_SUBST([xz]) AC_CONFIG_FILES([ Doxyfile Makefile po/Makefile.in lib/Makefile src/Makefile src/liblzma/liblzma.pc src/liblzma/Makefile src/liblzma/api/Makefile src/xz/Makefile src/xzdec/Makefile src/lzmainfo/Makefile src/scripts/Makefile src/scripts/xzdiff src/scripts/xzgrep src/scripts/xzmore src/scripts/xzless tests/Makefile debug/Makefile ]) AC_OUTPUT # Some warnings if test x$tuklib_cv_physmem_method = xunknown; then echo echo "WARNING:" echo "No supported method to detect the amount of RAM." echo "Consider using --enable-assume-ram (if you didn't already)" echo "or make a patch to add support for this operating system." fi # Not threading yet so don't warn. #if test x$tuklib_cv_cpucores_method = xunknown; then # echo # echo "WARNING:" # echo "No supported method to detect the number of CPU cores." #fi