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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
###############################################################################
#
# Copyright (C) 2007 Lasse Collin
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
###############################################################################
# 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)
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AC_INIT([xz], [4.999.6alpha], [lasse.collin@tukaani.org])
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AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
AC_CONFIG_HEADER([config.h])
echo
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echo "$PACKAGE_STRING"
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echo
echo "System type:"
# This is needed to know if assembler optimizations can be used.
AC_CANONICAL_HOST
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echo
echo "Configure options:"
#############
# Debugging #
#############
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AC_MSG_CHECKING([if debugging code should be compiled])
AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [Enable debugging code.]),
[], enable_debug=no)
if test "x$enable_debug" = xyes; then
AC_MSG_RESULT([yes])
else
AC_DEFINE(NDEBUG, 1, [Define to 1 to disable debugging code.])
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AC_MSG_RESULT([no])
fi
###########
# Encoder #
###########
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AC_MSG_CHECKING([if encoder components should be built])
AC_ARG_ENABLE(encoder, AC_HELP_STRING([--disable-encoder],
[Do not build the encoder components.]),
[], enable_encoder=yes)
if test "x$enable_encoder" = xyes; then
AC_DEFINE([HAVE_ENCODER], 1,
[Define to 1 if encoder components are enabled.])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AM_CONDITIONAL(COND_MAIN_ENCODER, test "x$enable_encoder" = xyes)
###########
# Decoder #
###########
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AC_MSG_CHECKING([if decoder components should be built])
AC_ARG_ENABLE(decoder, AC_HELP_STRING([--disable-decoder],
[Do not build the decoder components.]),
[], enable_decoder=yes)
if test "x$enable_decoder" = xyes; then
AC_DEFINE([HAVE_DECODER], 1,
[Define to 1 if decoder components are enabled.])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
if test "x$enable_encoder" = xno; then
AC_MSG_ERROR([Do not disable both encoder and decoder.])
fi
fi
AM_CONDITIONAL(COND_MAIN_DECODER, test "x$enable_decoder" = xyes)
###########
# Filters #
###########
m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,subblock,delta,x86,powerpc,ia64,arm,armthumb,sparc])dnl
m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,sparc])
m4_define([LZ_FILTERS], [lzma1,lzma2])
m4_foreach([NAME], [SUPPORTED_FILTERS],
[enable_filter_[]NAME=no
enable_encoder_[]NAME=no
enable_decoder_[]NAME=no
])dnl
AC_MSG_CHECKING([which encoders to build])
AC_ARG_ENABLE([encoders], AC_HELP_STRING([--enable-encoders=LIST],
[Comma-separated list of encoders to build. Default=all.
Available encoders:]
m4_translit(m4_defn([SUPPORTED_FILTERS]), [,], [ ])),
[], [enable_encoders=SUPPORTED_FILTERS])
enable_encoders=`echo "$enable_encoders" | sed 's/,/ /g'`
if test "x$enable_encoders" = xno || test "x$enable_encoders" = x; then
AC_MSG_RESULT([(none)])
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else
for arg in $enable_encoders
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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: $arg])
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;;
esac
done
AC_MSG_RESULT([$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
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.])
;;])
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*)
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])
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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.])
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fi
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$enable_decoder_lz" = xyes)
#################
# Match finders #
#################
m4_define([SUPPORTED_MATCH_FINDERS], [hc3,hc4,bt2,bt3,bt4])
m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS],
[enable_match_finder_[]NAME=no
])
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AC_MSG_CHECKING([which match finders to build])
AC_ARG_ENABLE(match-finders, AC_HELP_STRING([--enable-match-finders=LIST],
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[Comma-separated list of match finders to build. Default=all.
At least one match finder is required for encoding with
the LZMA1 and LZMA2 filters. Available match finders:]
m4_translit(m4_defn([SUPPORTED_MATCH_FINDERS]), [,], [ ])), [],
[enable_match_finders=SUPPORTED_MATCH_FINDERS])
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enable_match_finders=`echo "$enable_match_finders" | sed 's/,/ /g'`
if test "x$enable_encoder" = xyes && test "x$enable_encoder_lz" = xyes ; then
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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.])
;;])
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*)
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)])
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fi
####################
# Integrity checks #
####################
m4_define([SUPPORTED_CHECKS], [crc32,crc64,sha256])
m4_foreach([NAME], [SUPPORTED_FILTERS],
[enable_check_[]NAME=no
])dnl
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AC_MSG_CHECKING([which integrity checks to build])
AC_ARG_ENABLE(checks, AC_HELP_STRING([--enable-checks=LIST],
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[Comma-separated list of integrity checks to build.
Default=all. Available integrity checks:]
m4_translit(m4_defn([SUPPORTED_CHECKS]), [,], [ ])),
[], [enable_checks=SUPPORTED_CHECKS])
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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.])
;;])
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*)
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 #
###########################
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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])
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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
# Darwin has different ABI than GNU+Linux and Solaris,
# and the assembler code doesn't assemble.
case $host_os in
darwin*) enable_assembler=no ;;
*) ;;
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esac
fi
case $enable_assembler in
x86)
AC_DEFINE([HAVE_ASM_X86], 1,
[Define to 1 if using x86 assembler optimizations.])
;;
x86_64)
AC_DEFINE([HAVE_ASM_X86_64], 1,
[Define to 1 if using x86_64 assembler optimizations.])
;;
no)
;;
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*)
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', \`x86', or \`x86_64'.])
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;;
esac
AC_MSG_RESULT([$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 #
################################
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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 #
#####################
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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])
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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)
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###############################################################################
# Checks for programs.
###############################################################################
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echo
echo "Initializing Automake:"
AM_INIT_AUTOMAKE([1.10 foreign tar-v7 filename-length-max=99])
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AC_PROG_LN_S
AC_PROG_CC_C99
if test x$ac_cv_prog_cc_c99 = xno ; then
AC_MSG_ERROR([No C99 compiler was found.])
fi
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AM_PROG_CC_C_O
AM_PROG_AS
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AC_USE_SYSTEM_EXTENSIONS
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echo
echo "Threading support:"
ACX_PTHREAD
CC="$PTHREAD_CC"
echo
echo "Initializing Libtool:"
CXX=no
F77=no
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AC_PROG_LIBTOOL
###############################################################################
# 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],
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[], [], [
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#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 <byteswap.h>
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
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###############################################################################
# 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
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AC_HEADER_STDBOOL
AC_TYPE_UINT8_T
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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])
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# 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])
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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])
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# Check how to find out the amount of physical memory in the system. The
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# xz command line tool uses this to automatically limit its memory usage.
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# - sysconf() gives all the needed info on GNU+Linux and Solaris.
# - BSDs use sysctl().
AC_MSG_CHECKING([how to detect the amount of physical memory])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
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#include <unistd.h>
int
main()
{
long i;
i = sysconf(_SC_PAGESIZE);
i = sysconf(_SC_PHYS_PAGES);
return 0;
}
]])], [
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AC_DEFINE([HAVE_PHYSMEM_SYSCONF], 1,
[Define to 1 if the amount of physical memory can be detected
with sysconf(_SC_PAGESIZE) and sysconf(_SC_PHYS_PAGES).])
AC_MSG_RESULT([sysconf])
], [
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#include <sys/sysctl.h>
int
main()
{
int name[2] = { CTL_HW, HW_PHYSMEM };
unsigned long mem;
size_t mem_ptr_size = sizeof(mem);
sysctl(name, 2, &mem, &mem_ptr_size, NULL, NULL);
return 0;
}
]])], [
AC_DEFINE([HAVE_PHYSMEM_SYSCTL], 1,
[Define to 1 if the amount of physical memory can be detected
with sysctl().])
AC_MSG_RESULT([sysctl])
], [
AC_MSG_RESULT([unknown])
])])
# Check how to find out the number of available CPU cores in the system.
# sysconf(_SC_NPROCESSORS_ONLN) works on most systems, except that BSDs
# use sysctl().
AC_MSG_CHECKING([how to detect the number of available CPU cores])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
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#include <unistd.h>
int
main()
{
long i;
i = sysconf(_SC_NPROCESSORS_ONLN);
return 0;
}
]])], [
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AC_DEFINE([HAVE_NCPU_SYSCONF], 1,
[Define to 1 if the number of available CPU cores can be
detected with sysconf(_SC_NPROCESSORS_ONLN).])
AC_MSG_RESULT([sysconf])
], [
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#include <sys/sysctl.h>
int
main()
{
int name[2] = { CTL_HW, HW_NCPU };
int cpus;
size_t cpus_size = sizeof(cpus);
sysctl(name, 2, &cpus, &cpus_size, NULL, NULL);
return 0;
}
]])], [
AC_DEFINE([HAVE_NCPU_SYSCTL], 1,
[Define to 1 if the number of available CPU cores can be
detected with sysctl().])
AC_MSG_RESULT([sysctl])
], [
AC_MSG_RESULT([unknown])
])])
###############################################################################
# If using GCC, set some additional CFLAGS:
###############################################################################
Wno_uninitialized=no
if test "x$GCC" = xyes ; then
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echo
echo "GCC extensions:"
gl_VISIBILITY
if test -n "$CFLAG_VISIBILITY" ; then
CFLAGS="$CFLAG_VISIBILITY $CFLAGS"
fi
# -Wno-uninitialized is needed with -Werror with SHA256 code
# to omit a bogus warning.
AC_MSG_CHECKING([if $CC accepts -Wno-uninitialized])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-uninitialized"
AC_COMPILE_IFELSE([void foo(void) { }], [Wno_uninitialized=yes])
CFLAGS="$OLD_CFLAGS"
AC_MSG_RESULT([$Wno_uninitialized])
# Enable as much warnings as possible. These commented warnings won't
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# work for this package though:
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# * -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.
#
# The flags are in reverse order below so they end up in "beautiful"
# order on the actual command line.
for NEW_FLAG in \
-Wredundant-decls \
-Wmissing-noreturn \
-Wmissing-declarations \
-Wmissing-prototypes \
-Wold-style-definition \
-Wstrict-prototypes \
-Waggregate-return \
-Wlogical-op \
-Wwrite-strings \
-Wbad-function-cast \
-Wpointer-arith \
-Wshadow \
-Wundef \
-Wfloat-equal \
-Wstrict-aliasing \
-Wmissing-include-dirs \
-Winit-self \
-Wformat=2 \
-Wextra \
-Wall
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do
AC_MSG_CHECKING([if $CC accepts $NEW_FLAG])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$NEW_FLAG $CFLAGS"
AC_COMPILE_IFELSE([void foo(void) { }], [
AC_MSG_RESULT([yes])
], [
CFLAGS="$OLD_CFLAGS"
AC_MSG_RESULT([no])
])
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
CFLAGS="-Werror $CFLAGS"
fi
fi
AM_CONDITIONAL([COND_WNO_UNINITIALIZED], test "x$Wno_uninitialized" = "xyes")
###############################################################################
# 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")
AC_CONFIG_FILES([
Doxyfile
Makefile
po/Makefile.in
lib/Makefile
src/Makefile
src/liblzma/lzma.pc
src/liblzma/Makefile
src/liblzma/api/Makefile
src/liblzma/common/Makefile
src/liblzma/check/Makefile
src/liblzma/rangecoder/Makefile
2007-12-08 23:42:33 +01:00
src/liblzma/lz/Makefile
src/liblzma/lzma/Makefile
src/liblzma/subblock/Makefile
src/liblzma/delta/Makefile
src/liblzma/simple/Makefile
src/xz/Makefile
src/xzdec/Makefile
2007-12-08 23:42:33 +01:00
src/scripts/Makefile
tests/Makefile
debug/Makefile
2007-12-08 23:42:33 +01:00
])
AC_OUTPUT