2 # Process this file with autoconf to produce a configure script.
4 ###############################################################################
8 # This file has been put into the public domain.
9 # You can do whatever you want with this file.
11 ###############################################################################
13 # NOTE: Don't add useless checks. autoscan detects this and that, but don't
14 # let it confuse you. For example, we don't care about checking for behavior
15 # of malloc(), stat(), or lstat(), since we don't use those functions in
16 # a way that would cause the problems the autoconf macros check.
20 AC_INIT([XZ Utils], m4_esyscmd([/bin/sh version.sh]),
21 [lasse.collin@tukaani.org], [xz])
22 AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
23 AC_CONFIG_AUX_DIR([build-aux])
24 AC_CONFIG_MACRO_DIR([m4])
25 AC_CONFIG_HEADER([config.h])
27 PACKAGE_HOMEPAGE=http://tukaani.org/xz/
28 AC_DEFINE_UNQUOTED([PACKAGE_HOMEPAGE], ["$PACKAGE_HOMEPAGE"],
29 [Define to the URL of the home page of this package.])
30 AC_SUBST([PACKAGE_HOMEPAGE])
33 echo "$PACKAGE_STRING"
37 # This is needed to know if assembler optimizations can be used.
40 # We do some special things on Windows (32-bit or 64-bit) builds.
42 mingw* | cygwin*) is_w32=yes ;;
45 AM_CONDITIONAL([COND_W32], [test "$is_w32" = yes])
49 echo "Configure options:"
57 AC_MSG_CHECKING([if debugging code should be compiled])
58 AC_ARG_ENABLE([debug], AC_HELP_STRING([--enable-debug], [Enable debugging code.]),
60 if test "x$enable_debug" = xyes; then
63 AC_DEFINE([NDEBUG], [1], [Define to 1 to disable debugging code.])
72 m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,subblock,delta,x86,powerpc,ia64,arm,armthumb,sparc])dnl
73 m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,sparc])
74 m4_define([LZ_FILTERS], [lzma1,lzma2])
76 m4_foreach([NAME], [SUPPORTED_FILTERS],
77 [enable_filter_[]NAME=no
78 enable_encoder_[]NAME=no
79 enable_decoder_[]NAME=no
82 AC_MSG_CHECKING([which encoders to build])
83 AC_ARG_ENABLE([encoders], AC_HELP_STRING([--enable-encoders=LIST],
84 [Comma-separated list of encoders to build. Default=all.
86 m4_translit(m4_defn([SUPPORTED_FILTERS]), [,], [ ])),
87 [], [enable_encoders=SUPPORTED_FILTERS])
88 enable_encoders=`echo "$enable_encoders" | sed 's/,subblock//; s/,/ /g'`
89 if test "x$enable_encoders" = xno || test "x$enable_encoders" = x; then
90 AC_MSG_RESULT([(none)])
92 AC_DEFINE([HAVE_ENCODER], [1],
93 [Define to 1 if encoder components are enabled.])
94 for arg in $enable_encoders
96 case $arg in m4_foreach([NAME], [SUPPORTED_FILTERS], [
98 enable_filter_[]NAME=yes
99 enable_encoder_[]NAME=yes
100 AC_DEFINE(HAVE_ENCODER_[]m4_toupper(NAME), [1],
101 [Define to 1 if] NAME [encoder is enabled.])
105 AC_MSG_ERROR([unknown filter: $arg])
109 AC_MSG_RESULT([$enable_encoders])
112 AC_MSG_CHECKING([which decoders to build])
113 AC_ARG_ENABLE([decoders], AC_HELP_STRING([--enable-decoders=LIST],
114 [Comma-separated list of decoders to build. Default=all.
115 Available decoders are the same as available encoders.]),
116 [], [enable_decoders=SUPPORTED_FILTERS])
117 enable_decoders=`echo "$enable_decoders" | sed 's/,subblock//; s/,/ /g'`
118 if test "x$enable_decoders" = xno || test "x$enable_decoders" = x; then
119 AC_MSG_RESULT([(none)])
121 AC_DEFINE([HAVE_DECODER], [1],
122 [Define to 1 if decoder components are enabled.])
123 for arg in $enable_decoders
125 case $arg in m4_foreach([NAME], [SUPPORTED_FILTERS], [
127 enable_filter_[]NAME=yes
128 enable_decoder_[]NAME=yes
129 AC_DEFINE(HAVE_DECODER_[]m4_toupper(NAME), [1],
130 [Define to 1 if] NAME [decoder is enabled.])
134 AC_MSG_ERROR([unknown filter: $arg])
139 # LZMA2 requires that LZMA1 is enabled.
140 test "x$enable_encoder_lzma2" = xyes && enable_encoder_lzma1=yes
141 test "x$enable_decoder_lzma2" = xyes && enable_decoder_lzma1=yes
143 AC_MSG_RESULT([$enable_decoders])
146 if test "x$enable_encoder_lzma2$enable_encoder_lzma1" = xyesno \
147 || test "x$enable_decoder_lzma2$enable_decoder_lzma1" = xyesno; then
148 AC_MSG_ERROR([LZMA2 requires that LZMA1 is also enabled.])
151 AM_CONDITIONAL(COND_MAIN_ENCODER, test "x$enable_encoders" != xno && test "x$enable_encoders" != x)
152 AM_CONDITIONAL(COND_MAIN_DECODER, test "x$enable_decoders" != xno && test "x$enable_decoders" != x)
154 m4_foreach([NAME], [SUPPORTED_FILTERS],
155 [AM_CONDITIONAL(COND_FILTER_[]m4_toupper(NAME), test "x$enable_filter_[]NAME" = xyes)
156 AM_CONDITIONAL(COND_ENCODER_[]m4_toupper(NAME), test "x$enable_encoder_[]NAME" = xyes)
157 AM_CONDITIONAL(COND_DECODER_[]m4_toupper(NAME), test "x$enable_decoder_[]NAME" = xyes)
160 # The so called "simple filters" share common code.
161 enable_filter_simple=no
162 enable_encoder_simple=no
163 enable_decoder_simple=no
164 m4_foreach([NAME], [SIMPLE_FILTERS],
165 [test "x$enable_filter_[]NAME" = xyes && enable_filter_simple=yes
166 test "x$enable_encoder_[]NAME" = xyes && enable_encoder_simple=yes
167 test "x$enable_decoder_[]NAME" = xyes && enable_decoder_simple=yes
169 AM_CONDITIONAL(COND_FILTER_SIMPLE, test "x$enable_filter_simple" = xyes)
170 AM_CONDITIONAL(COND_ENCODER_SIMPLE, test "x$enable_encoder_simple" = xyes)
171 AM_CONDITIONAL(COND_DECODER_SIMPLE, test "x$enable_decoder_simple" = xyes)
173 # LZ-based filters share common code.
177 m4_foreach([NAME], [LZ_FILTERS],
178 [test "x$enable_filter_[]NAME" = xyes && enable_filter_lz=yes
179 test "x$enable_encoder_[]NAME" = xyes && enable_encoder_lz=yes
180 test "x$enable_decoder_[]NAME" = xyes && enable_decoder_lz=yes
182 AM_CONDITIONAL(COND_FILTER_LZ, test "x$enable_filter_lz" = xyes)
183 AM_CONDITIONAL(COND_ENCODER_LZ, test "x$enable_encoder_lz" = xyes)
184 AM_CONDITIONAL(COND_DECODER_LZ, test "x$enable_decoder_lz" = xyes)
191 m4_define([SUPPORTED_MATCH_FINDERS], [hc3,hc4,bt2,bt3,bt4])
193 m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS],
194 [enable_match_finder_[]NAME=no
197 AC_MSG_CHECKING([which match finders to build])
198 AC_ARG_ENABLE([match-finders], AC_HELP_STRING([--enable-match-finders=LIST],
199 [Comma-separated list of match finders to build. Default=all.
200 At least one match finder is required for encoding with
201 the LZMA1 and LZMA2 filters. Available match finders:]
202 m4_translit(m4_defn([SUPPORTED_MATCH_FINDERS]), [,], [ ])), [],
203 [enable_match_finders=SUPPORTED_MATCH_FINDERS])
204 enable_match_finders=`echo "$enable_match_finders" | sed 's/,/ /g'`
205 if test "x$enable_encoder_lz" = xyes ; then
206 for arg in $enable_match_finders
208 case $arg in m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS], [
210 enable_match_finder_[]NAME=yes
211 AC_DEFINE(HAVE_MF_[]m4_toupper(NAME), [1],
212 [Define to 1 to enable] NAME [match finder.])
216 AC_MSG_ERROR([unknown match finder: $arg])
220 AC_MSG_RESULT([$enable_match_finders])
222 AC_MSG_RESULT([(none because not building any LZ-based encoder)])
230 m4_define([SUPPORTED_CHECKS], [crc32,crc64,sha256])
232 m4_foreach([NAME], [SUPPORTED_FILTERS],
233 [enable_check_[]NAME=no
236 AC_MSG_CHECKING([which integrity checks to build])
237 AC_ARG_ENABLE([checks], AC_HELP_STRING([--enable-checks=LIST],
238 [Comma-separated list of integrity checks to build.
239 Default=all. Available integrity checks:]
240 m4_translit(m4_defn([SUPPORTED_CHECKS]), [,], [ ])),
241 [], [enable_checks=SUPPORTED_CHECKS])
242 enable_checks=`echo "$enable_checks" | sed 's/,/ /g'`
243 if test "x$enable_checks" = xno || test "x$enable_checks" = x; then
244 AC_MSG_RESULT([(none)])
246 for arg in $enable_checks
248 case $arg in m4_foreach([NAME], [SUPPORTED_CHECKS], [
250 enable_check_[]NAME=yes
251 AC_DEFINE(HAVE_CHECK_[]m4_toupper(NAME), [1],
252 [Define to 1 if] NAME
253 [integrity check is enabled.])
257 AC_MSG_ERROR([unknown integrity check: $arg])
261 AC_MSG_RESULT([$enable_checks])
263 if test "x$enable_checks_crc32" = xno ; then
264 AC_MSG_ERROR([For now, the CRC32 check must always be enabled.])
267 m4_foreach([NAME], [SUPPORTED_CHECKS],
268 [AM_CONDITIONAL(COND_CHECK_[]m4_toupper(NAME), test "x$enable_check_[]NAME" = xyes)
272 ###########################
273 # Assembler optimizations #
274 ###########################
276 AC_MSG_CHECKING([if assembler optimizations should be used])
277 AC_ARG_ENABLE([assembler], AC_HELP_STRING([--disable-assembler],
278 [Do not use assembler optimizations even if such exist
279 for the architecture.]),
280 [], [enable_assembler=yes])
281 if test "x$enable_assembler" = xyes; then
283 i?86) enable_assembler=x86 ;;
284 x86_64) enable_assembler=x86_64 ;;
285 *) enable_assembler=no ;;
288 case $enable_assembler in
290 AC_DEFINE([HAVE_ASM_X86], [1],
291 [Define to 1 if using x86 assembler optimizations.])
294 AC_DEFINE([HAVE_ASM_X86_64], [1],
295 [Define to 1 if using x86_64 assembler optimizations.])
301 AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', \`x86', or \`x86_64'.])
304 AC_MSG_RESULT([$enable_assembler])
305 AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86)
306 AM_CONDITIONAL(COND_ASM_X86_64, test "x$enable_assembler" = xx86_64)
309 ################################
310 # Fast unaligned memory access #
311 ################################
313 AC_MSG_CHECKING([if unaligned memory access should be used])
314 AC_ARG_ENABLE([unaligned-access], AC_HELP_STRING([--enable-unaligned-access],
315 [Enable if the system supports *fast* unaligned memory access
316 with 16-bit and 32-bit integers. By default, this is enabled
317 only on x86, x86_64, and big endian PowerPC.]),
318 [], [enable_unaligned_access=auto])
319 if test "x$enable_unaligned_access" = xauto ; then
321 i?86|x86_64|powerpc|powerpc64)
322 enable_unaligned_access=yes
325 enable_unaligned_access=no
329 if test "x$enable_unaligned_access" = xyes ; then
330 AC_DEFINE([HAVE_FAST_UNALIGNED_ACCESS], [1], [Define to 1 if
331 the system supports fast unaligned memory access.])
338 #####################
339 # Size optimization #
340 #####################
342 AC_MSG_CHECKING([if small size is preferred over speed])
343 AC_ARG_ENABLE([small], AC_HELP_STRING([--enable-small],
344 [Make liblzma smaller and a little slower.
345 This is disabled by default to optimize for speed.]),
346 [], [enable_small=no])
347 if test "x$enable_small" = xyes; then
348 AC_DEFINE([HAVE_SMALL], [1], [Define to 1 if optimizing for size.])
349 elif test "x$enable_small" != xno; then
351 AC_MSG_ERROR([--enable-small accepts only \`yes' or \`no'])
353 AC_MSG_RESULT([$enable_small])
354 AM_CONDITIONAL(COND_SMALL, test "x$enable_small" = xyes)
361 AC_MSG_CHECKING([if threading support is wanted])
362 AC_ARG_ENABLE([threads], AC_HELP_STRING([--disable-threads],
363 [Disable threading support.
364 This makes some things thread-unsafe.]),
365 [], [enable_threads=yes])
366 if test "x$enable_threads" != xyes && test "x$enable_threads" != xno; then
368 AC_MSG_ERROR([--enable-threads accepts only \`yes' or \`no'])
370 AC_MSG_RESULT([$enable_threads])
371 # We use the actual result a little later.
374 ############################################
375 # xz/xzdec/lzmadec linkage against liblzma #
376 ############################################
378 # Link the xz, xzdec, and lzmadec command line tools against static liblzma
379 # unless using --enable-dynamic. Using static liblzma gives a little bit
380 # faster executable on x86, because no register is wasted for PIC. We also
381 # have one dependency less, which allows users to more freely copy the xz
382 # binary to other boxes. However, I wouldn't be surprised if distro
383 # maintainers still prefer dynamic linking, so let's make it easy for them.
385 AC_MSG_CHECKING([how programs should be linked against liblzma])
386 AC_ARG_ENABLE([dynamic], [AC_HELP_STRING([--enable-dynamic=TYPE],
387 [Set how command line tools are linked against liblzma.
388 TYPE can be mixed, yes, or no. The default is mixed.])],
389 [], [enable_dynamic=mixed])
390 case $enable_dynamic in
392 AC_MSG_RESULT([mixed (some dynamically, some statically)])
395 AC_MSG_RESULT([dynamically])
398 AC_MSG_RESULT([statically])
402 AC_MSG_ERROR([--enable-dynamic accepts only \`mixed', \`yes', or \`no'])
405 # We use the actual results later, because we don't know yet
406 # if --disable-shared or --disable-static was used.
409 ###############################################################################
410 # Checks for programs.
411 ###############################################################################
415 if test -z "$POSIX_SHELL" ; then
416 AC_MSG_ERROR([No POSIX conforming shell (sh) was found.])
420 echo "Initializing Automake:"
422 AM_INIT_AUTOMAKE([1.10 foreign tar-v7 filename-length-max=99])
426 if test x$ac_cv_prog_cc_c99 = xno ; then
427 AC_MSG_ERROR([No C99 compiler was found.])
432 AC_USE_SYSTEM_EXTENSIONS
434 if test "x$enable_threads" = xyes; then
436 echo "Threading support:"
438 LIBS="$LIBS $PTHREAD_LIBS"
439 AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
444 echo "Initializing Libtool:"
447 LT_LANG([Windows Resource])
449 # This is a bit wrong since it is possible to request that only some libs
450 # are built as shared. Using that feature isn't so common though, and this
451 # breaks only on Windows (at least for now) if the user enables only some
453 AM_CONDITIONAL([COND_SHARED], [test "x$enable_shared" != xno])
456 ###############################################################################
457 # Checks for libraries.
458 ###############################################################################
461 echo "Initializing gettext:"
462 AM_GNU_GETTEXT_VERSION([0.16.1])
463 AM_GNU_GETTEXT([external])
465 ###############################################################################
466 # Checks for header files.
467 ###############################################################################
470 echo "System headers and functions:"
472 # There is currently no workarounds in this package if some of
473 # these headers are missing.
474 AC_CHECK_HEADERS([fcntl.h limits.h sys/time.h],
476 [AC_MSG_ERROR([Required header file(s) are missing.])])
478 # If any of these headers are missing, things should still work correctly:
479 AC_CHECK_HEADERS([sys/param.h sys/sysctl.h byteswap.h],
481 #ifdef HAVE_SYS_PARAM_H
482 # include <sys/param.h>
486 # Even if we have byteswap.h, we may lack the specific macros/functions.
487 if test x$ac_cv_header_byteswap_h = xyes ; then
488 m4_foreach([FUNC], [bswap_16,bswap_32,bswap_64], [
489 AC_MSG_CHECKING([if FUNC is available])
490 AC_LINK_IFELSE([AC_LANG_SOURCE([
491 #include <byteswap.h>
499 AC_DEFINE(HAVE_[]m4_toupper(FUNC), [1],
500 [Define to 1 if] FUNC [is available.])
502 ], [AC_MSG_RESULT([no])])
508 ###############################################################################
509 # Checks for typedefs, structures, and compiler characteristics.
510 ###############################################################################
512 dnl We don't need these as long as we need a C99 compiler anyway.
526 AC_CHECK_SIZEOF([size_t])
528 # The command line tool can copy high resolution timestamps if such
529 # information is availabe in struct stat. Otherwise one second accuracy
532 struct stat.st_atim.tv_nsec,
533 struct stat.st_atimespec.tv_nsec,
534 struct stat.st_atimensec,
535 struct stat.st_uatime,
536 struct stat.st_atim.st__tim.tv_nsec])
542 ###############################################################################
543 # Checks for library functions.
544 ###############################################################################
546 # Gnulib replacements as needed
549 # Find the best function to set timestamps.
550 AC_CHECK_FUNCS([futimens futimes futimesat utimes utime], [break])
556 ###############################################################################
557 # If using GCC, set some additional AM_CFLAGS:
558 ###############################################################################
560 if test "$GCC" = yes ; then
562 echo "GCC extensions:"
565 # Always do the visibility check but don't set AM_CFLAGS on Windows.
566 # This way things get set properly even on Windows.
568 if test -n "$CFLAG_VISIBILITY" && test "$is_w32" = no; then
569 AM_CFLAGS="$AM_CFLAGS $CFLAG_VISIBILITY"
572 if test "$GCC" = yes ; then
573 # Enable as much warnings as possible. These commented warnings won't
574 # work for this package though:
575 # * -Wunreachable-code breaks several assert(0) cases, which are
576 # backed up with "return LZMA_PROG_ERROR".
577 # * -Wcast-qual would break various things where we need a non-const
578 # pointer although we don't modify anything through it.
579 # * -Wcast-align breaks optimized CRC32 and CRC64 implementation
580 # on some architectures (not on x86), where this warning is bogus,
581 # because we take care of correct alignment.
582 # * -Winline, -Wdisabled-optimization, -Wunsafe-loop-optimizations
583 # don't seem so useful here; at least the last one gives some
584 # warnings which are not bugs.
590 -Wmissing-include-dirs \
596 -Wbad-function-cast \
600 -Wstrict-prototypes \
601 -Wold-style-definition \
602 -Wmissing-prototypes \
603 -Wmissing-declarations \
607 AC_MSG_CHECKING([if $CC accepts $NEW_FLAG])
609 CFLAGS="$CFLAGS $NEW_FLAG"
610 AC_COMPILE_IFELSE([void foo(void) { }], [
611 AM_CFLAGS="$AM_CFLAGS $NEW_FLAG"
619 AC_ARG_ENABLE([werror],
620 AC_HELP_STRING([--enable-werror], [Enable -Werror to abort
621 compilation on all compiler warnings.]),
622 [], [enable_werror=no])
623 if test "x$enable_werror" = "xyes"; then
624 AM_CFLAGS="$AM_CFLAGS -Werror"
629 ###############################################################################
630 # Create the makefiles and config.h
631 ###############################################################################
635 # Don't build the lib directory at all if we don't need any replacement
637 AM_CONDITIONAL([COND_GNULIB], test -n "$LIBOBJS")
639 # Add default AM_CFLAGS.
640 AC_SUBST([AM_CFLAGS])
642 # Set additional flags for static/dynamic linking. The idea is that every
643 # program (not library) being built will use either STATIC_{CPPFLAGS,LDFLAGS}
644 # or DYNAMIC_{CPPFLAGS,LDFLAGS} depending on which type of linkage is
645 # preferred. These preferences get overriden by use of --disable-static,
646 # --disable-shared, or --enable-dynamic.
648 # This is quite messy, because we want to use LZMA_API_STATIC when linking
649 # against static liblzma. It's needed on Windows.
650 if test "x$enable_static" = xno; then
653 if test "x$enable_shared" = xno; then
656 case $enable_dynamic in
664 STATIC_CPPFLAGS="-DLZMA_API_STATIC"
665 STATIC_LDFLAGS="-static"
670 STATIC_CPPFLAGS="-DLZMA_API_STATIC"
671 STATIC_LDFLAGS="-static"
672 DYNAMIC_CPPFLAGS="-DLZMA_API_STATIC"
673 DYNAMIC_LDFLAGS="-static"
676 AC_SUBST([STATIC_CPPFLAGS])
677 AC_SUBST([STATIC_LDFLAGS])
678 AC_SUBST([DYNAMIC_CPPFLAGS])
679 AC_SUBST([DYNAMIC_LDFLAGS])
681 # This is needed for src/scripts.
682 xz=`echo xz | sed "$program_transform_name"`
691 src/liblzma/liblzma.pc
693 src/liblzma/api/Makefile
696 src/lzmainfo/Makefile