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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)
# [LZMA] instead of [LZMA utils] since I prefer to have lzma-version.tar.gz
# instead of lzma-utils-version.tar.gz.
AC_INIT([LZMA], [4.42.2alpha], [lasse.collin@tukaani.org])
AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
AC_CONFIG_HEADER([config.h])
echo
echo "LZMA Utils $PACKAGE_VERSION"
echo
echo "System type:"
# This is needed to know if assembler optimizations can be used.
AC_CANONICAL_HOST
echo
echo "Configure options:"
# Enable/disable debugging code:
AC_MSG_CHECKING([if debugging code should be compiled])
AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [Enable debugging code.]),
[], enable_debug=no)
if test "x$enable_debug" = xyes; then
CFLAGS="-g $CFLAGS"
AC_MSG_RESULT([yes])
else
AC_DEFINE(NDEBUG, 1, [Define to disable debugging code.])
AC_MSG_RESULT([no])
fi
# Enable/disable the encoder components:
AC_MSG_CHECKING([if encoder components should be built])
AC_ARG_ENABLE(encoder, AC_HELP_STRING([--disable-encoder],
[Do not build the encoder components.]),
[], enable_encoder=yes)
if test "x$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$enable_encoder" = xyes)
# Enable/disable the decoder components:
AC_MSG_CHECKING([if decoder components should be built])
AC_ARG_ENABLE(decoder, AC_HELP_STRING([--disable-decoder],
[Do not build the decoder components.]),
[], enable_decoder=yes)
if test "x$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
AC_MSG_CHECKING([which filters to build])
AC_ARG_ENABLE(filters, AC_HELP_STRING([--enable-filters=],
[Comma-separated list of filters to build. Default=all.
Filters used in encoding are needed also in decoding.
Available filters: copy subblock x86 powerpc ia64
arm armthumb sparc delta lzma]),
[], [enable_filters=copy,subblock,x86,powerpc,ia64,arm,armthumb,sparc,delta,lzma])
enable_filters=`echo "$enable_filters" | sed 's/,/ /g'`
enable_filters_copy=no
enable_filters_subblock=no
enable_filters_x86=no
enable_filters_powerpc=no
enable_filters_ia64=no
enable_filters_arm=no
enable_filters_armthumb=no
enable_filters_sparc=no
enable_filters_delta=no
enable_filters_lzma=no
enable_simple_filters=no
if test "x$enable_filters" = xno || test "x$enable_filters" = x; then
AC_MSG_RESULT([])
AC_MSG_ERROR([Please enable at least one filter.])
else
for arg in $enable_filters
do
case $arg in
copy)
enable_filters_copy=yes
AC_DEFINE([HAVE_FILTER_COPY], 1,
[Define to 1 if support for the
Copy filter is enabled.])
;;
subblock)
enable_filters_subblock=yes
AC_DEFINE([HAVE_FILTER_SUBBLOCK], 1,
[Define to 1 if support for the
Subblock filter is enabled.])
;;
x86)
enable_filters_x86=yes
enable_simple_filters=yes
AC_DEFINE([HAVE_FILTER_X86], 1,
[Define to 1 if support for the
x86 (BCJ) filter is enabled.])
;;
powerpc)
enable_filters_powerpc=yes
enable_simple_filters=yes
AC_DEFINE([HAVE_FILTER_POWERPC], 1,
[Define to 1 if support for the
PowerPC filter is enabled.])
;;
ia64)
enable_filters_ia64=yes
enable_simple_filters=yes
AC_DEFINE([HAVE_FILTER_IA64], 1,
[Define to 1 if support for the
IA64 filter is enabled.])
;;
arm)
enable_filters_arm=yes
enable_simple_filters=yes
AC_DEFINE([HAVE_FILTER_ARM], 1,
[Define to 1 if support for the
ARM filter is enabled.])
;;
armthumb)
enable_filters_armthumb=yes
enable_simple_filters=yes
AC_DEFINE([HAVE_FILTER_ARMTHUMB], 1,
[Define to 1 if support for the
ARMThumb filter is enabled.])
;;
sparc)
enable_filters_sparc=yes
enable_simple_filters=yes
AC_DEFINE([HAVE_FILTER_SPARC], 1,
[Define to 1 if support for the
SPARC filter is enabled.])
;;
delta)
enable_filters_delta=yes
AC_DEFINE([HAVE_FILTER_DELTA], 1,
[Define to 1 if support for the
Delta filter is enabled.])
;;
lzma)
enable_filters_lzma=yes
AC_DEFINE([HAVE_FILTER_LZMA], 1,
[Define to 1 if support for the
LZMA filter is enabled.])
;;
*)
AC_MSG_RESULT([])
AC_MSG_ERROR([unknown filter: $arg])
;;
esac
done
AC_MSG_RESULT([$enable_filters])
fi
if test "x$enable_simple_filters" = xyes ; then
AC_DEFINE([HAVE_FILTER_SIMPLE], 1, [Define to 1 if support for any
of the so called simple filters is enabled.])
fi
AM_CONDITIONAL(COND_FILTER_COPY, test "x$enable_filters_copy" = xyes)
AM_CONDITIONAL(COND_FILTER_SUBBLOCK, test "x$enable_filters_subblock" = xyes)
AM_CONDITIONAL(COND_FILTER_X86, test "x$enable_filters_x86" = xyes)
AM_CONDITIONAL(COND_FILTER_POWERPC, test "x$enable_filters_powerpc" = xyes)
AM_CONDITIONAL(COND_FILTER_IA64, test "x$enable_filters_ia64" = xyes)
AM_CONDITIONAL(COND_FILTER_ARM, test "x$enable_filters_arm" = xyes)
AM_CONDITIONAL(COND_FILTER_ARMTHUMB, test "x$enable_filters_armthumb" = xyes)
AM_CONDITIONAL(COND_FILTER_SPARC, test "x$enable_filters_sparc" = xyes)
AM_CONDITIONAL(COND_FILTER_DELTA, test "x$enable_filters_delta" = xyes)
AM_CONDITIONAL(COND_FILTER_LZMA, test "x$enable_filters_lzma" = xyes)
AM_CONDITIONAL(COND_MAIN_SIMPLE, test "x$enable_simple_filters" = xyes)
# Which match finders should be enabled:
AC_MSG_CHECKING([which match finders to build])
AC_ARG_ENABLE(match-finders, AC_HELP_STRING([--enable-match-finders=],
[Comma-separated list of match finders to build. Default=all.
At least one match finder is required for encoding with
the LZMA filter.
Available match finders: hc3 hc4 bt2 bt3 bt4]), [],
[enable_match_finders=hc3,hc4,bt2,bt3,bt4])
enable_match_finders=`echo "$enable_match_finders" | sed 's/,/ /g'`
enable_match_finders_hc3=no
enable_match_finders_hc4=no
enable_match_finders_bt2=no
enable_match_finders_bt3=no
enable_match_finders_bt4=no
if test "x$enable_encoder" = xyes && test "x$enable_filters_lzma" = xyes ; then
for arg in $enable_match_finders
do
case $arg in
hc3) enable_match_finders_hc3=yes ;;
hc4) enable_match_finders_hc4=yes ;;
bt2) enable_match_finders_bt2=yes ;;
bt3) enable_match_finders_bt3=yes ;;
bt4) enable_match_finders_bt4=yes ;;
*)
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 the LZMA encoder)])
fi
AM_CONDITIONAL(COND_MF_HC3, test "x$enable_match_finders_hc3" = xyes)
AM_CONDITIONAL(COND_MF_HC4, test "x$enable_match_finders_hc4" = xyes)
AM_CONDITIONAL(COND_MF_BT2, test "x$enable_match_finders_bt2" = xyes)
AM_CONDITIONAL(COND_MF_BT3, test "x$enable_match_finders_bt3" = xyes)
AM_CONDITIONAL(COND_MF_BT4, test "x$enable_match_finders_bt4" = xyes)
# Which integrity checks to build
AC_MSG_CHECKING([which integrity checks to build])
AC_ARG_ENABLE(checks, AC_HELP_STRING([--enable-checks=],
[Comma-separated list of integrity checks to build.
Default=all. Available integrity checks: crc32 crc64 sha256]),
[], [enable_checks=crc32,crc64,sha256])
enable_checks=`echo "$enable_checks" | sed 's/,/ /g'`
enable_checks_crc32=no
enable_checks_crc64=no
enable_checks_sha256=no
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
crc32)
enable_checks_crc32=yes
AC_DEFINE([HAVE_CHECK_CRC32], 1,
[Define to 1 if CRC32 support
is enabled.])
;;
crc64)
enable_checks_crc64=yes
AC_DEFINE([HAVE_CHECK_CRC64], 1,
[Define to 1 if CRC64 support
is enabled.])
;;
sha256)
enable_checks_sha256=yes
AC_DEFINE([HAVE_CHECK_SHA256], 1,
[Define to 1 if SHA256 support
is enabled.])
;;
*)
AC_MSG_RESULT([])
AC_MSG_ERROR([unknown integrity check: $arg])
;;
esac
done
AC_MSG_RESULT([$enable_checks])
fi
if test "x$enable_checks_crc32" = xno ; then
AC_MSG_ERROR([For now, the CRC32 check must always be enabled.])
fi
AM_CONDITIONAL(COND_CHECK_CRC32, test "x$enable_checks_crc32" = xyes)
AM_CONDITIONAL(COND_CHECK_CRC64, test "x$enable_checks_crc64" = xyes)
AM_CONDITIONAL(COND_CHECK_SHA256, test "x$enable_checks_sha256" = xyes)
# 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 ;;
*) enable_assembler=no ;;
esac
fi
case $enable_assembler in
x86|no) ;;
*)
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', or \`x86'.])
;;
esac
AC_MSG_RESULT([$enable_assembler])
AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86)
# Size optimization
AC_MSG_CHECKING([if small size is preferred over speed])
AC_ARG_ENABLE(small, AC_HELP_STRING([--enable-small],
[Omit precomputed tables to make liblzma a few kilobytes
smaller. This will increase startup time of applications
slightly, because the tables need to be computed first.]),
[], [enable_small=no])
if test "x$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$enable_small" = xyes)
echo
echo "Initializing Automake:"
# There's no C++ or Fortran in LZMA Utils:
CXX=no
F77=no
AM_INIT_AUTOMAKE
AC_USE_SYSTEM_EXTENSIONS
###############################################################################
# Checks for programs.
###############################################################################
AM_PROG_CC_C_O
AM_PROG_AS
AC_PROG_LN_S
echo
echo "Threading support:"
ACX_PTHREAD
CC="$PTHREAD_CC"
echo
echo "Initializing Libtool:"
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([assert.h errno.h byteswap.h sys/param.h sys/sysctl.h],
[], [], [
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
])
###############################################################################
# Checks for typedefs, structures, and compiler characteristics.
###############################################################################
AC_HEADER_STDBOOL
AC_C_INLINE
AC_C_RESTRICT
# The command line tool can copy high resolution timestamps if such
# information is availabe in struct stat. Otherwise one second accuracy
# is used. Most systems seem to have st_xtim but BSDs have st_xtimespec.
AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec, struct stat.st_mtim.tv_nsec,
struct stat.st_atimespec.tv_nsec, struct stat.st_mtimespec.tv_nsec])
# It is very unlikely that you want to build liblzma without
# large file support.
AC_SYS_LARGEFILE
# At the moment, the only endian-dependent part should be the integrity checks.
AC_C_BIGENDIAN
###############################################################################
# Checks for library functions.
###############################################################################
# Gnulib replacements as needed
gl_GETOPT
# Functions that are not mandatory i.e. we have alternatives for them
# or we can just drop some functionality:
AC_CHECK_FUNCS([memcpy memmove memset futimes futimesat])
# Check how to find out the amount of physical memory in the system. The
# lzma command line tool uses this to automatically limits its memory usage.
# - 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([
#include <unistd.h>
int
main()
{
long i;
i = sysconf(_SC_PAGESIZE);
i = sysconf(_SC_PHYS_PAGES);
return 0;
}
], [
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([
#include <unistd.h>
int
main()
{
long i;
i = sysconf(_SC_NPROCESSORS_ONLN);
return 0;
}
], [
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 -n "$GCC" ; then
echo
echo "GCC extensions:"
gl_VISIBILITY
if test -n "$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
# work for LZMA Utils 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.
for NEW_FLAG in -Wextra -Wformat=2 -Winit-self -Wstrict-aliasing=2 \
-Wfloat-equal -Wshadow -Wunsafe-loop-optimizations \
-Wpointer-arith -Wbad-function-cast -Wwrite-strings \
-Waggregate-return -Wstrict-prototypes \
-Wold-style-definition -Wmissing-prototypes \
-Wmissing-declarations -Wmissing-noreturn \
-Wredundant-decls -Winline -Wdisabled-optimization
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
# IIRC these work with all GCC versions that support -std=c99:
CFLAGS="-std=c99 -pedantic -Wall $CFLAGS"
fi
AM_CONDITIONAL([COND_WNO_UNINITIALIZED], test "x$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/lz/Makefile
src/liblzma/lzma/Makefile
src/liblzma/simple/Makefile
src/liblzma/subblock/Makefile
src/liblzma/rangecoder/Makefile
src/lzma/Makefile
src/lzmadec/Makefile
src/scripts/Makefile
tests/Makefile
])
AC_OUTPUT
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