dnl than checking it during run-time
NEEDS_D_REENTRANT_FOR_R_FUNCS=0
-dnl the additional define needed for MT programs
-CPP_MT_FLAG=-D_REENTRANT
-
dnl the list of all available toolkits
dnl
dnl update NUM_TOOLKITS calculation below when adding a new toolkit here!
*-*-freebsd*)
USE_BSD=1
USE_FREEBSD=1
- CPP_MT_FLAG=-D_THREAD_SAFE
AC_DEFINE(__FREEBSD__)
AC_DEFINE(__BSD__)
DEFAULT_DEFAULT_wxUSE_GTK=1
dnl PowerPC Darwin based distributions (including Mac OS X)
USE_BSD=1
USE_DARWIN=1
- CPP_MT_FLAG=
SO_SUFFIX=dylib
AC_DEFINE(__BSD__)
AC_DEFINE(__DARWIN__)
dnl defines GCC with yes if using gcc
dnl defines GCC empty if not using gcc
dnl defines CFLAGS
+dnl
+dnl this magic incantation is needed to prevent AC_PROG_CC from setting the
+dnl default CFLAGS (something like "-g -O2") - we don't need this as add
+dnl -g and -O flags ourselves below
+CFLAGS=${CFLAGS:=}
AC_PROG_CC
-CFLAGS=`echo "$CFLAGS" | sed 's/-g//g'`
-
dnl is -traditional needed for correct compilations
dnl adds -traditional for gcc if needed
AC_PROG_GCC_TRADITIONAL
dnl defines GXX with yes if using gxx
dnl defines GXX empty if not using gxx
dnl defines CXXFLAGS
+dnl
+dnl see CFLAGS line above
+CXXFLAGS=${CXXFLAGS:=}
AC_PROG_CXX
-CXXFLAGS=`echo "$CXXFLAGS" | sed 's/-g//g'`
-
AC_LANG_RESTORE
dnl ranlib command
dnl http://fink.sourceforge.net/doc/porting/porting.html
CFLAGS="$CFLAGS -fno-common -DDYLIB_INIT"
CXXFLAGS="$CXXFLAGS -fno-common -DDYLIB_INIT"
+ dnl Executables must necessarily fully bind the wxWindows library at
+ dnl program launch otherwise lazy binding breaks RTTI class info
+ LDFLAGS="$LDFLAGS -Wl,-bind_at_load"
SHARED_LD="$CXX -dynamiclib -init _wxWindowsDylibInit -o"
PIC_FLAG="-dynamic -fPIC"
SONAME_FLAGS="-compatibility_version ${WX_RELEASE} -current_version ${WX_VERSION}"
dnl ---------------------------------------------------------------------------
dnl under MSW we always have thread support
+CPP_MT_FLAG=
if test "$TOOLKIT" != "MSW"; then
dnl the code below:
- dnl defines THREADS_OBJ which contains the object files to build
- dnl defines THREADS_LINK which contains the thread library to link with
- dnl defines wxUSE_THREADS=1 if thread support is activated
+ dnl
+ dnl defines THREADS_LINK and THREADS_CFLAGS which are the options
+ dnl necessary to build the MT programs for the linker and compiler
+ dnl respectively
+ dnl
+ dnl sets wxUSE_THREADS=1 if thread support is activated
THREADS_LINK=
- THREADS_OBJ=
- CODE_GEN_FLAGS=
- CODE_GEN_FLAGS_CXX=
+ THREADS_CFLAGS=
if test "$wxUSE_THREADS" = "yes" ; then
if test "$wxUSE_WINE" = 1 ; then
if test "$wxUSE_THREADS" = "yes" ; then
dnl find if POSIX threads are available
+ dnl
+ dnl the tests here are based on ACX_PTHREAD macro from autoconf macro
+ dnl archive from http://ac-archive.sourceforge.net/
+ dnl
+ dnl thanks to Steven G. Johnson <stevenj@alum.mit.edu> and Alejandro
+ dnl Forero Cuervo <bachue@bachue.com> for the original code
+
+ dnl TODO: cache the result
+
+ dnl define the list of the thread options to try in the loop below
+ dnl with the convention that anything starting with '-' is a cpp flag
+ dnl while anything else is a library (i.e. there is an implicit "-l")
+ THREAD_OPTS="-pthread"
+ case "${host}" in
+ *-*-solaris2* | *-*-sunos4* )
+ if test "x$GCC" = "xyes"; then
+ dnl Solaris/gcc combination use this one for some reason
+ THREAD_OPTS="-pthreads $THREAD_OPTS"
+ else
+ THREAD_OPTS="-mt $THREAD_OPTS"
+ fi
+ ;;
+ *-*-freebsd*)
+ dnl look, in order, for the kernel threads, then Linux threads
+ dnl and finally the userland threads
+ THREAD_OPTS="-kthread lthread $THREAD_OPTS c_r"
+ ;;
+ *-*-aix* )
+ dnl AIX calls the library libpthreads - thanks IBM!
+ THREAD_OPTS="pthreads"
+ ;;
+ esac
- dnl AIX calls the library libpthreads - thanks IBM!
- if test "$USE_AIX" = 1; then
- THREADS_LIB=pthreads
- else
- THREADS_LIB=pthread
- fi
+ dnl simply linking with libpthread should make the test below work but
+ dnl it's far from certain that the threaded programs compiled without
+ dnl any special switches actually work, so try it after all the others
+ THREAD_OPTS="$THREAD_OPTS pthread none"
+
+ dnl now test for all possibilities
+ THREADS_OK=no
+ for flag in $THREAD_OPTS; do
+ case $flag in
+ none)
+ AC_MSG_CHECKING([whether pthreads work without any flags])
+ ;;
- dnl standard lib name is pthread
- dnl We no longer test for pthread-0.7 as it breaks compilation on some
- dnl glibc2 systems, especially for static linkage.
- AC_CHECK_LIB($THREADS_LIB, pthread_create, [
- THREADS_OBJ="threadpsx.lo"
- THREADS_LINK=$THREADS_LIB
- ], [
- dnl thread functions are in libc_r under FreeBSD
- AC_CHECK_LIB(c_r, pthread_create, [
- THREADS_OBJ="threadpsx.lo"
- THREADS_LINK="c_r"
- ], [
- dnl VZ: SGI threads are not supported currently
- AC_CHECK_HEADER(sys/prctl.h, [
- THREADS_OBJ="threadsgi.lo"
- ])
- ])
- ])
+ -*)
+ AC_MSG_CHECKING([whether pthreads work with $flag])
+ THREADS_CFLAGS="$flag"
+ ;;
- if test -z "$THREADS_OBJ" ; then
- wxUSE_THREADS=no
- AC_MSG_WARN([No thread support on this system... disabled])
- fi
+ *)
+ AC_MSG_CHECKING([for the pthreads library -l$flag])
+ THREADS_LINK="-l$flag"
+ ;;
+ esac
+
+ save_LIBS="$LIBS"
+ save_CFLAGS="$CFLAGS"
+ LIBS="$THREADS_LINK $LIBS"
+ CFLAGS="$THREADS_CFLAGS $CFLAGS"
+
+ AC_TRY_LINK([#include <pthread.h>],
+ [pthread_create(0,0,0,0);],
+ THREADS_OK=yes)
+
+ LIBS="$save_LIBS"
+ CFLAGS="$save_CFLAGS"
+
+ AC_MSG_RESULT($THREADS_OK)
+ if test "x$THREADS_OK" = "xyes"; then
+ break;
+ fi
+
+ THREADS_LINK=""
+ THREADS_CFLAGS=""
+ done
+
+ if test "x$THREADS_OK" != "xyes"; then
+ wxUSE_THREADS=no
+ AC_MSG_WARN([No thread support on this system... disabled])
+ else
+ dnl yes, these special compiler flags should be used with the
+ dnl linker as well
+ LIBS="$THREADS_LINK $THREADS_CFLAGS $LIBS"
+
+ AC_MSG_CHECKING([if more special flags are required for pthreads])
+ flag=no
+ case "${host}" in
+ *-aix* | *-freebsd*)
+ flag="-D_THREAD_SAFE"
+ ;;
+ *solaris* | alpha*-osf*)
+ flag="-D_REENTRANT"
+ ;;
+ esac
+ AC_MSG_RESULT(${flag})
+ if test "x$flag" != xno; then
+ THREADS_CFLAGS="$THREADS_CFLAGS $flag"
+ fi
+
+ if test "x$THREADS_CFLAGS" != "x"; then
+ dnl don't add these options to CPPFLAGS as cpp might not know them
+ CFLAGS="$CFLAGS $THREADS_CFLAGS"
+ CXXFLAGS="$CXXFLAGS $THREADS_CFLAGS"
+ fi
+ fi
fi
dnl do other tests only if we are using threads
if test "$wxUSE_THREADS" = "yes" ; then
AC_CHECK_FUNCS(thr_setconcurrency)
- dnl define autoconf macro to check for given function in both pthread and
- dnl posix4 libraries
- dnl usage: AC_FUNC_THREAD(FUNCTION_NAME)
- dnl VZ: TODO
- dnl AC_DEFUN(AC_FUNC_THREAD,
- dnl [
- dnl AC_CHECK_LIB($THREADS_LINK, $1,
- dnl AC_DEFINE(HAVE_`'translit($1, `A-Z', 'a-z'),
- dnl [AC_CHECK_LIB([posix4], $1,
- dnl [AC_DEFINE(HAVE_`'translit($1, `A-Z', 'a-z'))
- dnl POSIX4_LINK=" -lposix4"
- dnl ])
- dnl ])
- dnl ])
-
AC_CHECK_HEADERS(sched.h)
-
- AC_CHECK_LIB($THREADS_LINK, sched_yield,
- AC_DEFINE(HAVE_SCHED_YIELD),
- [AC_CHECK_LIB([posix4], sched_yield,
- [AC_DEFINE(HAVE_SCHED_YIELD) POSIX4_LINK=" -lposix4"],
- AC_MSG_WARN(wxThread::Yield will not work properly)
- )]
- )
+ if test "$ac_cv_header_sched_h" = "yes"; then
+ AC_CHECK_FUNC(sched_yield,
+ AC_DEFINE(HAVE_SCHED_YIELD),
+ [
+ AC_CHECK_LIB(posix4,
+ sched_yield,
+ [AC_DEFINE(HAVE_SCHED_YIELD) POSIX4_LINK=" -lposix4"],
+ AC_MSG_WARN(wxThread::Yield will not work properly)
+ )
+ ]
+ )
+ fi
dnl to be able to set the thread priority, we need to have all of the
dnl following functions:
dnl (this one can be in either libpthread or libposix4 (under Solaris))
dnl 3. pthread_attr_getschedparam and pthread_attr_setschedparam
HAVE_PRIOR_FUNCS=0
- AC_CHECK_LIB($THREADS_LINK, pthread_attr_getschedpolicy,
- AC_CHECK_LIB($THREADS_LINK, pthread_attr_setschedparam,
- AC_CHECK_LIB($THREADS_LINK, sched_get_priority_max,
+ AC_CHECK_FUNC(pthread_attr_getschedpolicy,
+ AC_CHECK_FUNC(pthread_attr_setschedparam,
+ AC_CHECK_FUNC(sched_get_priority_max,
HAVE_PRIOR_FUNCS=1,
AC_CHECK_LIB([posix4], sched_get_priority_max,
[
AC_MSG_WARN(Setting thread priority will not work)
fi
- AC_CHECK_LIB($THREADS_LINK, pthread_cancel,
- AC_DEFINE(HAVE_PTHREAD_CANCEL),
- AC_MSG_WARN([wxThread::Kill() will not work properly]))
+ AC_CHECK_FUNC(pthread_cancel,
+ AC_DEFINE(HAVE_PTHREAD_CANCEL),
+ AC_MSG_WARN([wxThread::Kill() will not work properly]))
AC_CACHE_CHECK([for pthread_cleanup_push/pop], wx_cv_func_pthread_cleanup_push,
[
AC_MSG_WARN([wxMutex won't be recursive on this platform])
fi
fi
-
- THREADS_LINK=" -l$THREADS_LINK"
-
- dnl building MT programs under Solaris with the native compiler requires -mt
- dnl switch
- if test "$USE_SOLARIS" = "yes" -a "$GCC" != "yes"; then
- CPPFLAGS="$CFLAGS -mt"
- CXXFLAGS="$CXXFLAGS -mt"
- LDFLAGS="$LDFLAGS -mt"
- fi
fi
dnl from if !MSW
if test "$wxUSE_THREADS" = "yes"; then
AC_DEFINE(wxUSE_THREADS)
- dnl we must define _REENTRANT or something along these lines for MT code
- TOOLCHAIN_DEFS="$TOOLCHAIN_DEFS $CPP_MT_FLAG"
-
SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS thread"
else
dnl on some systems, _REENTRANT should be defined if we want to use any _r()
PROFILE=" -pg"
fi
+CODE_GEN_FLAGS=
+CODE_GEN_FLAGS_CXX=
if test "$GCC" = "yes" ; then
if test "$wxUSE_NO_RTTI" = "yes" ; then
CODE_GEN_FLAGS_CXX="$CODE_GEN_FLAGS_CXX -fno-rtti"
fi
fi
-
-CXXFLAGS=`echo "${CXXFLAGS}" | sed "s/\-O.//g" `
-CFLAGS=`echo "${CFLAGS}" | sed "s/\-O.//g" `
if test "$wxUSE_OPTIMISE" = "no" ; then
OPTIMISE=
else
dnl given the -lm comment there? Or should that comment (and
dnl this one) be removed.. [ 7 Nov 2001 ]
-LIBS="$ZLIB_LINK $POSIX4_LINK $INET_LINK $WCHAR_LINK $THREADS_LINK $DL_LINK -lm $LIBS"
+LIBS="$ZLIB_LINK $POSIX4_LINK $INET_LINK $WCHAR_LINK $DL_LINK -lm $LIBS"
if test "$wxUSE_GUI" = "yes"; then
EXTRA_CFLAGS="$WXDEBUG $WXODBCFLAG $PROFILE $OPTIMISE $INCLUDES"
+dnl remove the extra white space from the cc/c++/ld options
CFLAGS=`echo $CFLAGS $EXTRA_CFLAGS $CXXWARNINGS | sed 's/ \\+/ /g'`
CXXFLAGS=`echo $CXXFLAGS $EXTRA_CFLAGS $CXXWARNINGS | sed 's/ \+/ /g'`
+LIBS=`echo $LIBS | sed 's/ \+/ /g'`
-LDFLAGS="$LDFLAGS$PROFILE"
+LDFLAGS="$LDFLAGS $PROFILE"
dnl for convenience, sort the samples in alphabetical order
dnl
projects / wxWidgets.git / blobdiff