# -*- 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([2.61]) AC_INIT([XZ Utils], m4_esyscmd([/bin/sh version.sh]), [lasse.collin@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]) PACKAGE_HOMEPAGE=http://tukaani.org/xz/ AC_DEFINE_UNQUOTED([PACKAGE_HOMEPAGE], ["$PACKAGE_HOMEPAGE"], [Define to the URL of the home page of this package.]) AC_SUBST([PACKAGE_HOMEPAGE]) echo echo "$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]) 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$enable_debug" = xyes; then AC_MSG_RESULT([yes]) else AC_DEFINE([NDEBUG], [1], [Define to 1 to disable debugging code.]) AC_MSG_RESULT([no]) fi ########### # Filters # ########### m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,subblock,delta,x86,powerpc,ia64,arm,armthumb,sparc])dnl m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,sparc]) m4_define([LZ_FILTERS], [lzma1,lzma2]) m4_foreach([NAME], [SUPPORTED_FILTERS], [enable_filter_[]NAME=no enable_encoder_[]NAME=no enable_decoder_[]NAME=no ])dnl AC_MSG_CHECKING([which encoders to build]) AC_ARG_ENABLE([encoders], AC_HELP_STRING([--enable-encoders=LIST], [Comma-separated list of encoders to build. Default=all. Available encoders:] m4_translit(m4_defn([SUPPORTED_FILTERS]), [,], [ ])), [], [enable_encoders=SUPPORTED_FILTERS]) enable_encoders=`echo "$enable_encoders" | sed 's/,subblock//; 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 "$enable_decoders" | sed 's/,subblock//; s/,/ /g'` if test "x$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 case $host_cpu in i?86) enable_assembler=x86 ;; x86_64) enable_assembler=x86_64 ;; *) enable_assembler=no ;; esac fi case $enable_assembler in x86) AC_DEFINE([HAVE_ASM_X86], [1], [Define to 1 if using x86 assembler optimizations.]) ;; x86_64) AC_DEFINE([HAVE_ASM_X86_64], [1], [Define to 1 if using x86_64 assembler optimizations.]) ;; no) ;; *) AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', \`x86', or \`x86_64'.]) ;; esac AC_MSG_RESULT([$enable_assembler]) AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86) AM_CONDITIONAL(COND_ASM_X86_64, test "x$enable_assembler" = xx86_64) ################################ # Fast unaligned memory access # ################################ AC_MSG_CHECKING([if unaligned memory access should be used]) AC_ARG_ENABLE([unaligned-access], AC_HELP_STRING([--enable-unaligned-access], [Enable if the system supports *fast* unaligned memory access with 16-bit and 32-bit integers. By default, this is enabled only on x86, x86_64, and big endian PowerPC.]), [], [enable_unaligned_access=auto]) if test "x$enable_unaligned_access" = xauto ; then case $host_cpu in i?86|x86_64|powerpc|powerpc64) enable_unaligned_access=yes ;; *) enable_unaligned_access=no ;; esac fi if test "x$enable_unaligned_access" = xyes ; then AC_DEFINE([HAVE_FAST_UNALIGNED_ACCESS], [1], [Define to 1 if the system supports fast unaligned memory access.]) AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi ##################### # 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. ############################################ # xz/xzdec/lzmadec linkage against liblzma # ############################################ # Link the command line tool statically against 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 command line tools should be linked against liblzma]) AC_ARG_ENABLE([dynamic], [AC_HELP_STRING([--enable-dynamic], [Link command line tools dynamically against liblzma. The default is to use static liblzma if it was built.])], [], [enable_dynamic=no]) case $enable_dynamic in yes) STATIC_CPPFLAGS= STATIC_LDFLAGS= AC_MSG_RESULT([dynamically]) ;; no) STATIC_CPPFLAGS="-DLZMA_API_STATIC" STATIC_LDFLAGS="-static" AC_MSG_RESULT([statically]) ;; *) AC_MSG_RESULT([]) AC_MSG_ERROR([--enable-dynamic accepts only \`yes' or \`no']) ;; esac AC_SUBST([STATIC_CPPFLAGS]) AC_SUBST([STATIC_LDFLAGS]) ############################################################################### # Checks for programs. ############################################################################### echo gl_POSIX_SHELL if test -z "$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:" CXX=no F77=no AC_LIBTOOL_WIN32_DLL AC_PROG_LIBTOOL AC_LIBTOOL_RC dnl Some day we can drop support for libtool 1.5.x. Then the above five dnl lines can be replaced with these: dnl LT_INIT([win32-dll]) dnl 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$enable_shared" != xno]) ############################################################################### # Checks for libraries. ############################################################################### echo echo "Initializing gettext:" AM_GNU_GETTEXT_VERSION([0.16.1]) AM_GNU_GETTEXT([external]) ############################################################################### # Checks for header files. ############################################################################### echo echo "System headers and functions:" # There is currently no workarounds in this package if some of # these headers are missing. AC_CHECK_HEADERS([fcntl.h limits.h sys/time.h], [], [AC_MSG_ERROR([Required header file(s) are missing.])]) # If any of these headers are missing, things should still work correctly: AC_CHECK_HEADERS([sys/param.h sys/sysctl.h byteswap.h], [], [], [ #ifdef HAVE_SYS_PARAM_H # include #endif ]) # Even if we have byteswap.h, we may lack the specific macros/functions. if test x$ac_cv_header_byteswap_h = xyes ; then m4_foreach([FUNC], [bswap_16,bswap_32,bswap_64], [ AC_MSG_CHECKING([if FUNC is available]) AC_LINK_IFELSE([AC_LANG_SOURCE([ #include int main(void) { FUNC[](42); return 0; } ])], [ AC_DEFINE(HAVE_[]m4_toupper(FUNC), [1], [Define to 1 if] FUNC [is available.]) AC_MSG_RESULT([yes]) ], [AC_MSG_RESULT([no])]) ])dnl fi ############################################################################### # 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]) lc_PHYSMEM lc_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 "$LIBOBJS") # Add default AM_CFLAGS. AC_SUBST([AM_CFLAGS]) # This is needed for src/scripts. xz=`echo xz | sed "$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/scripts/Makefile src/scripts/xzdiff src/scripts/xzgrep src/scripts/xzmore src/scripts/xzless tests/Makefile debug/Makefile ]) AC_OUTPUT