# http://autoconf-archive.cryp.to/acx_pthread.html # Copyright © 2006 Steven G. Johnson AC_DEFUN([ACX_PTHREAD], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_LANG_SAVE AC_LANG_C acx_pthread_ok=no # We used to check for pthread.h first, but this fails if pthread.h # requires special compiler flags (e.g. on True64 or Sequent). # It gets checked for in the link test anyway. # First of all, check if the user has set any of the PTHREAD_LIBS, # etcetera environment variables, and if threads linking works using # them: if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes) AC_MSG_RESULT($acx_pthread_ok) if test x"$acx_pthread_ok" = xno; then PTHREAD_LIBS="" PTHREAD_CFLAGS="" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" fi # We must check for the threads library under a number of different # names; the ordering is very important because some systems # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). # Create a list of thread flags to try. Items starting with a "-" are # C compiler flags, and other items are library names, except for "none" # which indicates that we try without any flags at all, and "pthread-config" # which is a program returning the flags for the Pth emulation library. acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" # The ordering *is* (sometimes) important. Some notes on the # individual items follow: # pthreads: AIX (must check this before -lpthread) # none: in case threads are in libc; should be tried before -Kthread and # other compiler flags to prevent continual compiler warnings # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) # -pthreads: Solaris/gcc # -mthreads: Mingw32/gcc, Lynx/gcc # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it # doesn't hurt to check since this sometimes defines pthreads too; # also defines -D_REENTRANT) # ... -mt is also the pthreads flag for HP/aCC # pthread: Linux, etcetera # --thread-safe: KAI C++ # pthread-config: use pthread-config program (for GNU Pth library) case "${host_cpu}-${host_os}" in *solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. (We need to link with -pthreads/-mt/ # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather # a function called by this macro, so we could check for that, but # who knows whether they'll stub that too in a future libc.) So, # we'll just look for -pthreads and -lpthread first: acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags" ;; esac if test x"$acx_pthread_ok" = xno; then for flag in $acx_pthread_flags; do case $flag in none) AC_MSG_CHECKING([whether pthreads work without any flags]) ;; -*) AC_MSG_CHECKING([whether pthreads work with $flag]) PTHREAD_CFLAGS="$flag" ;; pthread-config) AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no) if test x"$acx_pthread_config" = xno; then continue; fi PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" ;; *) AC_MSG_CHECKING([for the pthreads library -l$flag]) PTHREAD_LIBS="-l$flag" ;; esac save_LIBS="$LIBS" save_CFLAGS="$CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [acx_pthread_ok=yes]) LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" AC_MSG_RESULT($acx_pthread_ok) if test "x$acx_pthread_ok" = xyes; then break; fi PTHREAD_LIBS="" PTHREAD_CFLAGS="" done fi # Various other checks: if test "x$acx_pthread_ok" = xyes; then save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. AC_MSG_CHECKING([for joinable pthread attribute]) attr_name=unknown for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do AC_TRY_LINK([#include ], [int attr=$attr; return attr;], [attr_name=$attr; break]) done AC_MSG_RESULT($attr_name) if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name, [Define to necessary symbol if this constant uses a non-standard name on your system.]) fi AC_MSG_CHECKING([if more special flags are required for pthreads]) flag=no case "${host_cpu}-${host_os}" in *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; esac AC_MSG_RESULT(${flag}) if test "x$flag" != xno; then PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" # More AIX lossage: must compile with xlc_r or cc_r if test x"$GCC" != xyes; then AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC}) else PTHREAD_CC=$CC fi else PTHREAD_CC="$CC" fi AC_SUBST(PTHREAD_LIBS) AC_SUBST(PTHREAD_CFLAGS) AC_SUBST(PTHREAD_CC) # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: if test x"$acx_pthread_ok" = xyes; then ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) : else acx_pthread_ok=no $2 fi AC_LANG_RESTORE ])dnl ACX_PTHREAD dnl dnl nicked from wxwin.m4 dnl dnl --------------------------------------------------------------------------- dnl Macros for wxWidgets detection. Typically used in configure.in as: dnl dnl AC_ARG_ENABLE(...) dnl AC_ARG_WITH(...) dnl ... dnl AM_OPTIONS_WXCONFIG dnl ... dnl ... dnl AM_PATH_WXCONFIG(2.6.0, wxWin=1) dnl if test "$wxWin" != 1; then dnl AC_MSG_ERROR([ dnl wxWidgets must be installed on your system dnl but wx-config script couldn't be found. dnl dnl Please check that wx-config is in path, the directory dnl where wxWidgets libraries are installed (returned by dnl 'wx-config --libs' command) is in LD_LIBRARY_PATH or dnl equivalent variable and wxWidgets version is 2.3.4 or above. dnl ]) dnl fi dnl CPPFLAGS="$CPPFLAGS $WX_CPPFLAGS" dnl CXXFLAGS="$CXXFLAGS $WX_CXXFLAGS_ONLY" dnl CFLAGS="$CFLAGS $WX_CFLAGS_ONLY" dnl dnl LIBS="$LIBS $WX_LIBS" dnl --------------------------------------------------------------------------- dnl --------------------------------------------------------------------------- dnl AM_OPTIONS_WXCONFIG dnl dnl adds support for --wx-prefix, --wx-exec-prefix, --with-wxdir and dnl --wx-config command line options dnl --------------------------------------------------------------------------- AC_DEFUN([AM_OPTIONS_WXCONFIG], [ AC_ARG_WITH(wxdir, [ --with-wxdir=PATH Use uninstalled version of wxWidgets in PATH], [ wx_config_name="$withval/wx-config" wx_config_args="--inplace"]) AC_ARG_WITH(wx-config, [ --with-wx-config=CONFIG wx-config script to use (optional)], wx_config_name="$withval" ) AC_ARG_WITH(wx-prefix, [ --with-wx-prefix=PREFIX Prefix where wxWidgets is installed (optional)], wx_config_prefix="$withval", wx_config_prefix="") AC_ARG_WITH(wx-exec-prefix, [ --with-wx-exec-prefix=PREFIX Exec prefix where wxWidgets is installed (optional)], wx_config_exec_prefix="$withval", wx_config_exec_prefix="") ]) dnl Helper macro for checking if wx version is at least $1.$2.$3, set's dnl wx_ver_ok=yes if it is: AC_DEFUN([_WX_PRIVATE_CHECK_VERSION], [ wx_ver_ok="" if test "x$WX_VERSION" != x ; then if test $wx_config_major_version -gt $1; then wx_ver_ok=yes else if test $wx_config_major_version -eq $1; then if test $wx_config_minor_version -gt $2; then wx_ver_ok=yes else if test $wx_config_minor_version -eq $2; then if test $wx_config_micro_version -ge $3; then wx_ver_ok=yes fi fi fi fi fi fi ]) dnl --------------------------------------------------------------------------- dnl AM_PATH_WXCONFIG(VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND dnl [, WX-LIBS [, ADDITIONAL-WX-CONFIG-FLAGS]]]]) dnl dnl Test for wxWidgets, and define WX_C*FLAGS, WX_LIBS and WX_LIBS_STATIC dnl (the latter is for static linking against wxWidgets). Set WX_CONFIG_NAME dnl environment variable to override the default name of the wx-config script dnl to use. Set WX_CONFIG_PATH to specify the full path to wx-config - in this dnl case the macro won't even waste time on tests for its existence. dnl dnl Optional WX-LIBS argument contains comma- or space-separated list of dnl wxWidgets libraries to link against (it may include contrib libraries). If dnl it is not specified then WX_LIBS and WX_LIBS_STATIC will contain flags to dnl link with all of the core wxWidgets libraries. dnl dnl Optional ADDITIONAL-WX-CONFIG-FLAGS argument is appended to wx-config dnl invocation command in present. It can be used to fine-tune lookup of dnl best wxWidgets build available. dnl dnl Example use: dnl AM_PATH_WXCONFIG([2.6.0], [wxWin=1], [wxWin=0], [html,core,net] dnl [--unicode --debug]) dnl --------------------------------------------------------------------------- dnl dnl Get the cflags and libraries from the wx-config script dnl AC_DEFUN([AM_PATH_WXCONFIG], [ dnl do we have wx-config name: it can be wx-config or wxd-config or ... if test x${WX_CONFIG_NAME+set} != xset ; then WX_CONFIG_NAME=wx-config fi if test "x$wx_config_name" != x ; then WX_CONFIG_NAME="$wx_config_name" fi dnl deal with optional prefixes if test x$wx_config_exec_prefix != x ; then wx_config_args="$wx_config_args --exec-prefix=$wx_config_exec_prefix" WX_LOOKUP_PATH="$wx_config_exec_prefix/bin" fi if test x$wx_config_prefix != x ; then wx_config_args="$wx_config_args --prefix=$wx_config_prefix" WX_LOOKUP_PATH="$WX_LOOKUP_PATH:$wx_config_prefix/bin" fi if test "$cross_compiling" = "yes"; then wx_config_args="$wx_config_args --host=$host_alias" fi dnl don't search the PATH if WX_CONFIG_NAME is absolute filename if test -x "$WX_CONFIG_NAME" ; then AC_MSG_CHECKING(for wx-config) WX_CONFIG_PATH="$WX_CONFIG_NAME" AC_MSG_RESULT($WX_CONFIG_PATH) else AC_PATH_PROG(WX_CONFIG_PATH, $WX_CONFIG_NAME, no, "$WX_LOOKUP_PATH:$PATH") fi if test "$WX_CONFIG_PATH" != "no" ; then WX_VERSION="" min_wx_version=ifelse([$1], ,2.2.1,$1) if test -z "$5" ; then AC_MSG_CHECKING([for wxWidgets version >= $min_wx_version]) else AC_MSG_CHECKING([for wxWidgets version >= $min_wx_version ($5)]) fi WX_CONFIG_WITH_ARGS="$WX_CONFIG_PATH $wx_config_args $5 $4" WX_VERSION=`$WX_CONFIG_WITH_ARGS --version 2>/dev/null` wx_config_major_version=`echo $WX_VERSION | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` wx_config_minor_version=`echo $WX_VERSION | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` wx_config_micro_version=`echo $WX_VERSION | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` wx_requested_major_version=`echo $min_wx_version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` wx_requested_minor_version=`echo $min_wx_version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` wx_requested_micro_version=`echo $min_wx_version | \ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` _WX_PRIVATE_CHECK_VERSION([$wx_requested_major_version], [$wx_requested_minor_version], [$wx_requested_micro_version]) if test -n "$wx_ver_ok"; then AC_MSG_RESULT(yes (version $WX_VERSION)) WX_LIBS=`$WX_CONFIG_WITH_ARGS --libs` dnl is this even still appropriate? --static is a real option now dnl and WX_CONFIG_WITH_ARGS is likely to contain it if that is dnl what the user actually wants, making this redundant at best. dnl For now keep it in case anyone actually used it in the past. AC_MSG_CHECKING([for wxWidgets static library]) WX_LIBS_STATIC=`$WX_CONFIG_WITH_ARGS --static --libs 2>/dev/null` if test "x$WX_LIBS_STATIC" = "x"; then AC_MSG_RESULT(no) else AC_MSG_RESULT(yes) fi dnl starting with version 2.2.6 wx-config has --cppflags argument wx_has_cppflags="" if test $wx_config_major_version -gt 2; then wx_has_cppflags=yes else if test $wx_config_major_version -eq 2; then if test $wx_config_minor_version -gt 2; then wx_has_cppflags=yes else if test $wx_config_minor_version -eq 2; then if test $wx_config_micro_version -ge 6; then wx_has_cppflags=yes fi fi fi fi fi dnl starting with version 2.7.0 wx-config has --rescomp option wx_has_rescomp="" if test $wx_config_major_version -gt 2; then wx_has_rescomp=yes else if test $wx_config_major_version -eq 2; then if test $wx_config_minor_version -ge 7; then wx_has_rescomp=yes fi fi fi if test "x$wx_has_rescomp" = x ; then dnl cannot give any useful info for resource compiler WX_RESCOMP= else WX_RESCOMP=`$WX_CONFIG_WITH_ARGS --rescomp` fi if test "x$wx_has_cppflags" = x ; then dnl no choice but to define all flags like CFLAGS WX_CFLAGS=`$WX_CONFIG_WITH_ARGS --cflags` WX_CPPFLAGS=$WX_CFLAGS WX_CXXFLAGS=$WX_CFLAGS WX_CFLAGS_ONLY=$WX_CFLAGS WX_CXXFLAGS_ONLY=$WX_CFLAGS else dnl we have CPPFLAGS included in CFLAGS included in CXXFLAGS WX_CPPFLAGS=`$WX_CONFIG_WITH_ARGS --cppflags` WX_CXXFLAGS=`$WX_CONFIG_WITH_ARGS --cxxflags` WX_CFLAGS=`$WX_CONFIG_WITH_ARGS --cflags` WX_CFLAGS_ONLY=`echo $WX_CFLAGS | sed "s@^$WX_CPPFLAGS *@@"` WX_CXXFLAGS_ONLY=`echo $WX_CXXFLAGS | sed "s@^$WX_CFLAGS *@@"` fi ifelse([$2], , :, [$2]) else if test "x$WX_VERSION" = x; then dnl no wx-config at all AC_MSG_RESULT(no) else AC_MSG_RESULT(no (version $WX_VERSION is not new enough)) fi WX_CFLAGS="" WX_CPPFLAGS="" WX_CXXFLAGS="" WX_LIBS="" WX_LIBS_STATIC="" WX_RESCOMP="" ifelse([$3], , :, [$3]) fi else WX_CFLAGS="" WX_CPPFLAGS="" WX_CXXFLAGS="" WX_LIBS="" WX_LIBS_STATIC="" WX_RESCOMP="" ifelse([$3], , :, [$3]) fi AC_SUBST(WX_CPPFLAGS) AC_SUBST(WX_CFLAGS) AC_SUBST(WX_CXXFLAGS) AC_SUBST(WX_CFLAGS_ONLY) AC_SUBST(WX_CXXFLAGS_ONLY) AC_SUBST(WX_LIBS) AC_SUBST(WX_LIBS_STATIC) AC_SUBST(WX_VERSION) AC_SUBST(WX_RESCOMP) ]) dnl --------------------------------------------------------------------------- dnl Get information on the wxrc program for making C++, Python and xrs dnl resource files. dnl dnl AC_ARG_ENABLE(...) dnl AC_ARG_WITH(...) dnl ... dnl AM_OPTIONS_WXCONFIG dnl ... dnl AM_PATH_WXCONFIG(2.6.0, wxWin=1) dnl if test "$wxWin" != 1; then dnl AC_MSG_ERROR([ dnl wxWidgets must be installed on your system dnl but wx-config script couldn't be found. dnl dnl Please check that wx-config is in path, the directory dnl where wxWidgets libraries are installed (returned by dnl 'wx-config --libs' command) is in LD_LIBRARY_PATH or dnl equivalent variable and wxWidgets version is 2.6.0 or above. dnl ]) dnl fi dnl dnl AM_PATH_WXRC([HAVE_WXRC=1], [HAVE_WXRC=0]) dnl if test "x$HAVE_WXRC" != x1; then dnl AC_MSG_ERROR([ dnl The wxrc program was not installed or not found. dnl dnl Please check the wxWidgets installation. dnl ]) dnl fi dnl dnl CPPFLAGS="$CPPFLAGS $WX_CPPFLAGS" dnl CXXFLAGS="$CXXFLAGS $WX_CXXFLAGS_ONLY" dnl CFLAGS="$CFLAGS $WX_CFLAGS_ONLY" dnl dnl LDFLAGS="$LDFLAGS $WX_LIBS" dnl --------------------------------------------------------------------------- dnl --------------------------------------------------------------------------- dnl AM_PATH_WXRC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) dnl dnl Test for wxWidgets' wxrc program for creating either C++, Python or XRS dnl resources. The variable WXRC will be set and substituted in the configure dnl script and Makefiles. dnl dnl Example use: dnl AM_PATH_WXRC([wxrc=1], [wxrc=0]) dnl --------------------------------------------------------------------------- dnl dnl wxrc program from the wx-config script dnl AC_DEFUN([AM_PATH_WXRC], [ AC_ARG_VAR([WXRC], [Path to wxWidget's wxrc resource compiler]) if test "x$WX_CONFIG_NAME" = x; then AC_MSG_ERROR([The wxrc tests must run after wxWidgets test.]) else AC_MSG_CHECKING([for wxrc]) if test "x$WXRC" = x ; then dnl wx-config --utility is a new addition to wxWidgets: _WX_PRIVATE_CHECK_VERSION(2,5,3) if test -n "$wx_ver_ok"; then WXRC=`$WX_CONFIG_WITH_ARGS --utility=wxrc` fi fi if test "x$WXRC" = x ; then AC_MSG_RESULT([not found]) ifelse([$2], , :, [$2]) else AC_MSG_RESULT([$WXRC]) ifelse([$1], , :, [$1]) fi AC_SUBST(WXRC) fi ])