Module Name: src Committed By: joerg Date: Tue Nov 2 15:40:58 UTC 2010
Modified Files: src/external/public-domain/xz/dist: configure.ac Log Message: Replace configure.ac with a stripped down version for later use by src/tools. To generate a diff of this commit: cvs rdiff -u -r1.1.1.1 -r1.2 src/external/public-domain/xz/dist/configure.ac Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/external/public-domain/xz/dist/configure.ac diff -u src/external/public-domain/xz/dist/configure.ac:1.1.1.1 src/external/public-domain/xz/dist/configure.ac:1.2 --- src/external/public-domain/xz/dist/configure.ac:1.1.1.1 Tue Nov 2 15:20:27 2010 +++ src/external/public-domain/xz/dist/configure.ac Tue Nov 2 15:40:58 2010 @@ -15,174 +15,28 @@ # 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_PREREQ([2.52]) -AC_INIT([XZ Utils], m4_esyscmd([/bin/sh build-aux/version.sh]), - [lasse.col...@tukaani.org], [xz], [http://tukaani.org/xz/]) -AC_CONFIG_SRCDIR([src/liblzma/common/common.h]) -AC_CONFIG_AUX_DIR([build-aux]) +AC_INIT([XZ Utils], 5.0.0, [jo...@netbsd.org], [xz], [http://tukaani.org/xz/]) AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_HEADER([config.h]) +AC_CONFIG_AUX_DIR([../../gnu/dist/autoconf/config]) -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$enable_debug" = xyes; then - AC_MSG_RESULT([yes]) -else - AC_DEFINE([NDEBUG], [1], [Define to 1 to disable debugging code.]) - AC_MSG_RESULT([no]) -fi - +AC_USE_SYSTEM_EXTENSIONS ########### # Filters # ########### -m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,sparc])dnl -m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,sparc]) -m4_define([LZ_FILTERS], [lzma1,lzma2]) - -m4_foreach([NAME], [SUPPORTED_FILTERS], -[enable_filter_[]NAME=no -enable_encoder_[]NAME=no -enable_decoder_[]NAME=no -])dnl - -AC_MSG_CHECKING([which encoders to build]) -AC_ARG_ENABLE([encoders], AC_HELP_STRING([--enable-encoders=LIST], - [Comma-separated list of encoders to build. Default=all. - Available encoders:] - m4_translit(m4_defn([SUPPORTED_FILTERS]), [,], [ ])), - [], [enable_encoders=SUPPORTED_FILTERS]) -enable_encoders=`echo "$enable_encoders" | sed 's/,/ /g'` -if test "x$enable_encoders" = xno || test "x$enable_encoders" = x; then - AC_MSG_RESULT([(none)]) -else - 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 - 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$enable_decoder_lz" = xyes) +m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,sparc]) +m4_foreach([NAME], [SUPPORTED_FILTERS], [ + AC_DEFINE(HAVE_ENCODER_[]m4_toupper(NAME), [1], + [Define to 1 if] NAME [encoder is enabled.]) + AC_DEFINE(HAVE_DECODER_[]m4_toupper(NAME), [1], + [Define to 1 if] NAME [decoder is enabled.]) +]) ################# # Match finders # @@ -190,281 +44,29 @@ m4_define([SUPPORTED_MATCH_FINDERS], [hc3,hc4,bt2,bt3,bt4]) -m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS], -[enable_match_finder_[]NAME=no +m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS], [ + AC_DEFINE(HAVE_MF_[]m4_toupper(NAME), [1], + [Define to 1 to enable] NAME [match finder.]) ]) -AC_MSG_CHECKING([which match finders to build]) -AC_ARG_ENABLE([match-finders], AC_HELP_STRING([--enable-match-finders=LIST], - [Comma-separated list of match finders to build. Default=all. - At least one match finder is required for encoding with - the LZMA1 and LZMA2 filters. Available match finders:] - m4_translit(m4_defn([SUPPORTED_MATCH_FINDERS]), [,], [ ])), [], - [enable_match_finders=SUPPORTED_MATCH_FINDERS]) -enable_match_finders=`echo "$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$enable_checks_crc32" = xno ; then - AC_MSG_ERROR([For now, the CRC32 check must always be enabled.]) -fi +m4_foreach([NAME], [SUPPORTED_CHECKS], [ + AC_DEFINE(HAVE_CHECK_[]m4_toupper(NAME), [1], + [Define to 1 if] NAME [integrity check is enabled.]) +]) -m4_foreach([NAME], [SUPPORTED_CHECKS], -[AM_CONDITIONAL(COND_CHECK_[]m4_toupper(NAME), test "x$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$enable_small" = xyes; then +if !:; then AC_DEFINE([HAVE_SMALL], [1], [Define to 1 if optimizing for size.]) -elif test "x$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.]) - - -######################### -# Components to install # -######################### - -AC_ARG_ENABLE([xz], [AC_HELP_STRING([--disable-xz], - [do not build the xz tool])], - [], [enable_xz=yes]) -AM_CONDITIONAL([COND_XZ], [test x$enable_xz != xno]) - -AC_ARG_ENABLE([xzdec], [AC_HELP_STRING([--disable-xzdec], - [do not build xzdec])], - [], [enable_xzdec=yes]) -AM_CONDITIONAL([COND_XZDEC], [test x$enable_xzdec != xno]) - -AC_ARG_ENABLE([lzmadec], [AC_HELP_STRING([--disable-lzmadec], - [do not build lzmadec - (it exists primarily for LZMA Utils compatibility)])], - [], [enable_lzmadec=yes]) -AM_CONDITIONAL([COND_LZMADEC], [test x$enable_lzmadec != xno]) - -AC_ARG_ENABLE([lzmainfo], [AC_HELP_STRING([--disable-lzmainfo], - [do not build lzmainfo - (it exists primarily for LZMA Utils compatibility)])], - [], [enable_lzmainfo=yes]) -AM_CONDITIONAL([COND_LZMAINFO], [test x$enable_lzmainfo != xno]) - -AC_ARG_ENABLE([lzma-links], [AC_HELP_STRING([--disable-lzma-links], - [do not create symlinks for LZMA Utils compatibility])], - [], [enable_lzma_links=yes]) -AM_CONDITIONAL([COND_LZMALINKS], [test x$enable_lzma_links != xno]) - -AC_ARG_ENABLE([scripts], [AC_HELP_STRING([--disable-scripts], - [do not install the scripts xzdiff, xzgrep, xzless, xzmore, - and their symlinks])], - [], [enable_scripts=yes]) -AM_CONDITIONAL([COND_SCRIPTS], [test x$enable_scripts != xno]) - - -############################################################################### -# 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$enable_shared" != xno]) - - -############################################################################### -# Checks for libraries. -############################################################################### - -echo -echo "Initializing gettext:" -AM_GNU_GETTEXT_VERSION([0.16.1]) -AM_GNU_GETTEXT([external]) - -############################################################################### -# Checks for header files. -############################################################################### -echo -echo "System headers and functions:" +AC_DEFINE_UNQUOTED([ASSUME_RAM], [128], + [How many MiB of RAM to assume if the real amount cannot be determined.]) # There is currently no workarounds in this package if some of # these headers are missing. @@ -472,15 +74,6 @@ [], [AC_MSG_ERROR([Required header file(s) are missing.])]) - -############################################################################### -# Checks for typedefs, structures, and compiler characteristics. -############################################################################### - -dnl We don't need these as long as we need a C99 compiler anyway. -dnl AC_C_INLINE -dnl AC_C_RESTRICT - AC_HEADER_STDBOOL AC_TYPE_UINT8_T @@ -506,14 +99,6 @@ AC_SYS_LARGEFILE AC_C_BIGENDIAN - -############################################################################### -# Checks for library functions. -############################################################################### - -# Gnulib replacements as needed -gl_GETOPT - # Find the best function to set timestamps. AC_CHECK_FUNCS([futimens futimes futimesat utimes utime], [break]) @@ -523,132 +108,4 @@ TUKLIB_CPUCORES TUKLIB_MBSTR - -############################################################################### -# If using GCC, set some additional AM_CFLAGS: -############################################################################### - -if test "$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 $NEW_FLAG" - AC_COMPILE_IFELSE([AC_LANG_SOURCE([void foo(void) { }])], [ - AM_CFLAGS="$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/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