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don't use __thread keyword with g++ < 4 as it results in mysterious problems at link time related to thread-local static wxString::ms_cache

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56928 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2008-11-23 01:53:24 +00:00
parent 40e7c0b913
commit eb6a8d695e
5 changed files with 365 additions and 21 deletions
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2
aclocal.m4 vendored
View File

@@ -15,6 +15,8 @@ m4_include([build/aclocal/ac_raf_func_which_getservbyname_r.m4])
m4_include([build/aclocal/atomic_builtins.m4]) m4_include([build/aclocal/atomic_builtins.m4])
m4_include([build/aclocal/ax_cflags_gcc_option.m4]) m4_include([build/aclocal/ax_cflags_gcc_option.m4])
m4_include([build/aclocal/ax_func_which_gethostbyname_r.m4]) m4_include([build/aclocal/ax_func_which_gethostbyname_r.m4])
m4_include([build/aclocal/ax_gcc_option.m4])
m4_include([build/aclocal/ax_gxx_version.m4])
m4_include([build/aclocal/bakefile-dllar.m4]) m4_include([build/aclocal/bakefile-dllar.m4])
m4_include([build/aclocal/bakefile-lang.m4]) m4_include([build/aclocal/bakefile-lang.m4])
m4_include([build/aclocal/bakefile.m4]) m4_include([build/aclocal/bakefile.m4])

130
build/aclocal/ax_gcc_option.m4 Normal file
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@@ -0,0 +1,130 @@
# ===========================================================================
# http://autoconf-archive.cryp.to/ax_gcc_option.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_GCC_OPTION(OPTION,EXTRA-OPTIONS,TEST-PROGRAM,ACTION-IF-SUCCESSFUL,ACTION-IF-NOT-SUCCESFUL)
#
# DESCRIPTION
#
# AX_GCC_OPTION checks wheter gcc accepts the passed OPTION. If it accepts
# the OPTION then ACTION-IF-SUCCESSFUL will be executed, otherwise
# ACTION-IF-UNSUCCESSFUL.
#
# NOTE: This macro will be obsoleted by AX_C_CHECK_FLAG AX_CXX_CHECK_FLAG,
# AX_CPP_CHECK_FLAG, AX_CXXCPP_CHECK_FLAG and AX_LD_CHECK_FLAG.
#
# A typical usage should be the following one:
#
# AX_GCC_OPTION([-fomit-frame-pointer],[],[],[
# AC_MSG_NOTICE([The option is supported])],[
# AC_MSG_NOTICE([No luck this time])
# ])
#
# The macro doesn't discriminate between languages so, if you are testing
# for an option that works for C++ but not for C you should use '-x c++'
# as EXTRA-OPTIONS:
#
# AX_GCC_OPTION([-fno-rtti],[-x c++],[],[ ... ],[ ... ])
#
# OPTION is tested against the following code:
#
# int main()
# {
# return 0;
# }
#
# The optional TEST-PROGRAM comes handy when the default main() is not
# suited for the option being checked
#
# So, if you need to test for -fstrict-prototypes option you should
# probably use the macro as follows:
#
# AX_GCC_OPTION([-fstrict-prototypes],[-x c++],[
# int main(int argc, char ** argv)
# {
# (void) argc;
# (void) argv;
#
# return 0;
# }
# ],[ ... ],[ ... ])
#
# Note that the macro compiles but doesn't link the test program so it is
# not suited for checking options that are passed to the linker, like:
#
# -Wl,-L<a-library-path>
#
# In order to avoid such kind of problems you should think about usinguse
# the AX_*_CHECK_FLAG family macros
#
# LAST MODIFICATION
#
# 2008-04-12
#
# COPYLEFT
#
# Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
# Copyright (c) 2008 Bogdan Drozdowski <bogdandr@op.pl>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program 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 General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Macro Archive. When you make and
# distribute a modified version of the Autoconf Macro, you may extend this
# special exception to the GPL to apply to your modified version as well.
AC_DEFUN([AX_GCC_OPTION], [
AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING([if gcc accepts $1 option])
AS_IF([ test "x$GCC" = "xyes" ],[
AS_IF([ test -z "$3" ],[
ax_gcc_option_test="int main()
{
return 0;
}"
],[
ax_gcc_option_test="$3"
])
# Dump the test program to file
cat <<EOF > conftest.c
$ax_gcc_option_test
EOF
# Dump back the file to the log, useful for debugging purposes
AC_TRY_COMMAND(cat conftest.c 1>&AS_MESSAGE_LOG_FD)
AS_IF([ AC_TRY_COMMAND($CC $2 $1 -c conftest.c 1>&AS_MESSAGE_LOG_FD) ],[
AC_MSG_RESULT([yes])
$4
],[
AC_MSG_RESULT([no])
$5
])
],[
AC_MSG_RESULT([no gcc available])
])
])

67
build/aclocal/ax_gxx_version.m4 Normal file
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@@ -0,0 +1,67 @@
# ===========================================================================
# http://autoconf-archive.cryp.to/ax_gxx_version.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_GXX_VERSION
#
# DESCRIPTION
#
# This macro retrieves the g++ version and returns it in the GXX_VERSION
# variable if available, an empty string otherwise.
#
# LAST MODIFICATION
#
# 2008-04-12
#
# COPYLEFT
#
# Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program 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 General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Macro Archive. When you make and
# distribute a modified version of the Autoconf Macro, you may extend this
# special exception to the GPL to apply to your modified version as well.
AC_DEFUN([AX_GXX_VERSION], [
GXX_VERSION=""
AX_GCC_OPTION([-dumpversion],[],[],[
ax_gcc_version_option=yes
],[
ax_gcc_version_option=no
])
AS_IF([test "x$GXX" = "xyes"],[
AS_IF([test "x$ax_gxx_version_option" != "no"],[
AC_CACHE_CHECK([gxx version],[ax_cv_gxx_version],[
ax_cv_gxx_version="`$CXX -dumpversion`"
AS_IF([test "x$ax_cv_gxx_version" = "x"],[
ax_cv_gxx_version=""
])
])
GXX_VERSION=$ax_cv_gxx_version
])
])
AC_SUBST([GXX_VERSION])
])

141
configure vendored
View File

@@ -701,6 +701,7 @@ PANGOXFT_LIBS
CFLAGS_VISIBILITY CFLAGS_VISIBILITY
CXXFLAGS_VISIBILITY CXXFLAGS_VISIBILITY
LIBICONV LIBICONV
GXX_VERSION
SDL_CONFIG SDL_CONFIG
SDL_CFLAGS SDL_CFLAGS
SDL_LIBS SDL_LIBS
@@ -40261,13 +40262,133 @@ echo "$as_me: WARNING: wxMutex won't be recursive on this platform" >&2;}
fi fi
fi fi
{ echo "$as_me:$LINENO: checking for __thread keyword" >&5
GXX_VERSION=""
{ echo "$as_me:$LINENO: checking if gcc accepts -dumpversion option" >&5
echo $ECHO_N "checking if gcc accepts -dumpversion option... $ECHO_C" >&6; }
if test "x$GCC" = "xyes" ; then
if test -z "" ; then
ax_gcc_option_test="int main()
{
return 0;
}"
else
ax_gcc_option_test=""
fi
# Dump the test program to file
cat <<EOF > conftest.c
$ax_gcc_option_test
EOF
# Dump back the file to the log, useful for debugging purposes
{ ac_try='cat conftest.c 1>&5'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }
if { ac_try='$CC -dumpversion -c conftest.c 1>&5'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } ; then
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
ax_gcc_version_option=yes
else
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
ax_gcc_version_option=no
fi
else
{ echo "$as_me:$LINENO: result: no gcc available" >&5
echo "${ECHO_T}no gcc available" >&6; }
fi
if test "x$GXX" = "xyes"; then
if test "x$ax_gxx_version_option" != "no"; then
{ echo "$as_me:$LINENO: checking gxx version" >&5
echo $ECHO_N "checking gxx version... $ECHO_C" >&6; }
if test "${ax_cv_gxx_version+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ax_cv_gxx_version="`$CXX -dumpversion`"
if test "x$ax_cv_gxx_version" = "x"; then
ax_cv_gxx_version=""
fi
fi
{ echo "$as_me:$LINENO: result: $ax_cv_gxx_version" >&5
echo "${ECHO_T}$ax_cv_gxx_version" >&6; }
GXX_VERSION=$ax_cv_gxx_version
fi
fi
if test -n "$ax_cv_gxx_version"; then
{ echo "$as_me:$LINENO: checking for __thread support in g++" >&5
echo $ECHO_N "checking for __thread support in g++... $ECHO_C" >&6; }
case "$ax_cv_gxx_version" in
1.* | 2.* )
{ echo "$as_me:$LINENO: result: doesn't exist" >&5
echo "${ECHO_T}doesn't exist" >&6; }
wx_cv_cc___thread=no
;;
3.*)
{ echo "$as_me:$LINENO: result: broken" >&5
echo "${ECHO_T}broken" >&6; }
wx_cv_cc___thread=no
;;
*)
{ echo "$as_me:$LINENO: result: works" >&5
echo "${ECHO_T}works" >&6; }
wx_cv_cc___thread=yes
;;
esac
else
{ echo "$as_me:$LINENO: checking for __thread keyword" >&5
echo $ECHO_N "checking for __thread keyword... $ECHO_C" >&6; } echo $ECHO_N "checking for __thread keyword... $ECHO_C" >&6; }
if test "${wx_cv_cc___thread+set}" = set; then if test "${wx_cv_cc___thread+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6 echo $ECHO_N "(cached) $ECHO_C" >&6
else else
cat >conftest.$ac_ext <<_ACEOF cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */ /* confdefs.h. */
_ACEOF _ACEOF
cat confdefs.h >>conftest.$ac_ext cat confdefs.h >>conftest.$ac_ext
@@ -40278,8 +40399,8 @@ int
main () main ()
{ {
static __thread int n = 0; static __thread int n = 0;
static __thread int *p = 0; static __thread int *p = 0;
; ;
return 0; return 0;
@@ -40316,6 +40437,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi fi
{ echo "$as_me:$LINENO: result: $wx_cv_cc___thread" >&5 { echo "$as_me:$LINENO: result: $wx_cv_cc___thread" >&5
echo "${ECHO_T}$wx_cv_cc___thread" >&6; } echo "${ECHO_T}$wx_cv_cc___thread" >&6; }
fi
if test "$wx_cv_cc___thread" = "yes"; then if test "$wx_cv_cc___thread" = "yes"; then
cat >>confdefs.h <<\_ACEOF cat >>confdefs.h <<\_ACEOF
@@ -51774,6 +51896,7 @@ PANGOXFT_LIBS!$PANGOXFT_LIBS$ac_delim
CFLAGS_VISIBILITY!$CFLAGS_VISIBILITY$ac_delim CFLAGS_VISIBILITY!$CFLAGS_VISIBILITY$ac_delim
CXXFLAGS_VISIBILITY!$CXXFLAGS_VISIBILITY$ac_delim CXXFLAGS_VISIBILITY!$CXXFLAGS_VISIBILITY$ac_delim
LIBICONV!$LIBICONV$ac_delim LIBICONV!$LIBICONV$ac_delim
GXX_VERSION!$GXX_VERSION$ac_delim
SDL_CONFIG!$SDL_CONFIG$ac_delim SDL_CONFIG!$SDL_CONFIG$ac_delim
SDL_CFLAGS!$SDL_CFLAGS$ac_delim SDL_CFLAGS!$SDL_CFLAGS$ac_delim
SDL_LIBS!$SDL_LIBS$ac_delim SDL_LIBS!$SDL_LIBS$ac_delim
@@ -51785,7 +51908,6 @@ GNOMEVFS_CFLAGS!$GNOMEVFS_CFLAGS$ac_delim
GNOMEVFS_LIBS!$GNOMEVFS_LIBS$ac_delim GNOMEVFS_LIBS!$GNOMEVFS_LIBS$ac_delim
HILDON_CFLAGS!$HILDON_CFLAGS$ac_delim HILDON_CFLAGS!$HILDON_CFLAGS$ac_delim
HILDON_LIBS!$HILDON_LIBS$ac_delim HILDON_LIBS!$HILDON_LIBS$ac_delim
CAIRO_CFLAGS!$CAIRO_CFLAGS$ac_delim
_ACEOF _ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -51827,6 +51949,7 @@ _ACEOF
ac_delim='%!_!# ' ac_delim='%!_!# '
for ac_last_try in false false false false false :; do for ac_last_try in false false false false false :; do
cat >conf$$subs.sed <<_ACEOF cat >conf$$subs.sed <<_ACEOF
CAIRO_CFLAGS!$CAIRO_CFLAGS$ac_delim
CAIRO_LIBS!$CAIRO_LIBS$ac_delim CAIRO_LIBS!$CAIRO_LIBS$ac_delim
GST_CFLAGS!$GST_CFLAGS$ac_delim GST_CFLAGS!$GST_CFLAGS$ac_delim
GST_LIBS!$GST_LIBS$ac_delim GST_LIBS!$GST_LIBS$ac_delim
@@ -51923,7 +52046,6 @@ SETFILE!$SETFILE$ac_delim
OBJCXXFLAGS!$OBJCXXFLAGS$ac_delim OBJCXXFLAGS!$OBJCXXFLAGS$ac_delim
GCC_PCH!$GCC_PCH$ac_delim GCC_PCH!$GCC_PCH$ac_delim
ICC_PCH!$ICC_PCH$ac_delim ICC_PCH!$ICC_PCH$ac_delim
ICC_PCH_CREATE_SWITCH!$ICC_PCH_CREATE_SWITCH$ac_delim
_ACEOF _ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -51965,6 +52087,7 @@ _ACEOF
ac_delim='%!_!# ' ac_delim='%!_!# '
for ac_last_try in false false false false false :; do for ac_last_try in false false false false false :; do
cat >conf$$subs.sed <<_ACEOF cat >conf$$subs.sed <<_ACEOF
ICC_PCH_CREATE_SWITCH!$ICC_PCH_CREATE_SWITCH$ac_delim
ICC_PCH_USE_SWITCH!$ICC_PCH_USE_SWITCH$ac_delim ICC_PCH_USE_SWITCH!$ICC_PCH_USE_SWITCH$ac_delim
BK_MAKE_PCH!$BK_MAKE_PCH$ac_delim BK_MAKE_PCH!$BK_MAKE_PCH$ac_delim
COND_BUILD_DEBUG!$COND_BUILD_DEBUG$ac_delim COND_BUILD_DEBUG!$COND_BUILD_DEBUG$ac_delim
@@ -52061,7 +52184,6 @@ COND_SHARED_0_USE_GUI_1_USE_OPENGL_1!$COND_SHARED_0_USE_GUI_1_USE_OPENGL_1$ac_de
COND_SHARED_0_USE_GUI_1_wxUSE_LIBJPEG_builtin!$COND_SHARED_0_USE_GUI_1_wxUSE_LIBJPEG_builtin$ac_delim COND_SHARED_0_USE_GUI_1_wxUSE_LIBJPEG_builtin!$COND_SHARED_0_USE_GUI_1_wxUSE_LIBJPEG_builtin$ac_delim
COND_SHARED_0_USE_GUI_1_wxUSE_LIBPNG_builtin!$COND_SHARED_0_USE_GUI_1_wxUSE_LIBPNG_builtin$ac_delim COND_SHARED_0_USE_GUI_1_wxUSE_LIBPNG_builtin!$COND_SHARED_0_USE_GUI_1_wxUSE_LIBPNG_builtin$ac_delim
COND_SHARED_0_USE_GUI_1_wxUSE_LIBTIFF_builtin!$COND_SHARED_0_USE_GUI_1_wxUSE_LIBTIFF_builtin$ac_delim COND_SHARED_0_USE_GUI_1_wxUSE_LIBTIFF_builtin!$COND_SHARED_0_USE_GUI_1_wxUSE_LIBTIFF_builtin$ac_delim
COND_SHARED_0_USE_STC_1!$COND_SHARED_0_USE_STC_1$ac_delim
_ACEOF _ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -52103,6 +52225,7 @@ _ACEOF
ac_delim='%!_!# ' ac_delim='%!_!# '
for ac_last_try in false false false false false :; do for ac_last_try in false false false false false :; do
cat >conf$$subs.sed <<_ACEOF cat >conf$$subs.sed <<_ACEOF
COND_SHARED_0_USE_STC_1!$COND_SHARED_0_USE_STC_1$ac_delim
COND_SHARED_0_wxUSE_EXPAT_builtin!$COND_SHARED_0_wxUSE_EXPAT_builtin$ac_delim COND_SHARED_0_wxUSE_EXPAT_builtin!$COND_SHARED_0_wxUSE_EXPAT_builtin$ac_delim
COND_SHARED_0_wxUSE_REGEX_builtin!$COND_SHARED_0_wxUSE_REGEX_builtin$ac_delim COND_SHARED_0_wxUSE_REGEX_builtin!$COND_SHARED_0_wxUSE_REGEX_builtin$ac_delim
COND_SHARED_0_wxUSE_ZLIB_builtin!$COND_SHARED_0_wxUSE_ZLIB_builtin$ac_delim COND_SHARED_0_wxUSE_ZLIB_builtin!$COND_SHARED_0_wxUSE_ZLIB_builtin$ac_delim
@@ -52199,7 +52322,6 @@ WX_LIBRARY_BASENAME_GUI!$WX_LIBRARY_BASENAME_GUI$ac_delim
USE_GUI!$USE_GUI$ac_delim USE_GUI!$USE_GUI$ac_delim
AFMINSTALL!$AFMINSTALL$ac_delim AFMINSTALL!$AFMINSTALL$ac_delim
WIN32INSTALL!$WIN32INSTALL$ac_delim WIN32INSTALL!$WIN32INSTALL$ac_delim
TOOLKIT!$TOOLKIT$ac_delim
_ACEOF _ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -52241,6 +52363,7 @@ _ACEOF
ac_delim='%!_!# ' ac_delim='%!_!# '
for ac_last_try in false false false false false :; do for ac_last_try in false false false false false :; do
cat >conf$$subs.sed <<_ACEOF cat >conf$$subs.sed <<_ACEOF
TOOLKIT!$TOOLKIT$ac_delim
TOOLKIT_DIR!$TOOLKIT_DIR$ac_delim TOOLKIT_DIR!$TOOLKIT_DIR$ac_delim
TOOLCHAIN_NAME!$TOOLCHAIN_NAME$ac_delim TOOLCHAIN_NAME!$TOOLCHAIN_NAME$ac_delim
TOOLCHAIN_FULLNAME!$TOOLCHAIN_FULLNAME$ac_delim TOOLCHAIN_FULLNAME!$TOOLCHAIN_FULLNAME$ac_delim
@@ -52280,7 +52403,7 @@ LIBOBJS!$LIBOBJS$ac_delim
LTLIBOBJS!$LTLIBOBJS$ac_delim LTLIBOBJS!$LTLIBOBJS$ac_delim
_ACEOF _ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 37; then if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 38; then
break break
elif $ac_last_try; then elif $ac_last_try; then
{ { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5 { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5

46
configure.in
View File

@@ -5000,18 +5000,40 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
fi fi
dnl test for compiler thread-specific variables support dnl test for compiler thread-specific variables support
AC_CACHE_CHECK([for __thread keyword], AX_GXX_VERSION
wx_cv_cc___thread, if test -n "$ax_cv_gxx_version"; then
[ dnl g++ supports __thread since at least version 3.3 but its support
AC_TRY_COMPILE([#include <pthread.h>], dnl seems to be broken until 4.1, see
[ dnl http://thread.gmane.org/gmane.comp.lib.wxwidgets.devel/108388
static __thread int n = 0; AC_MSG_CHECKING([for __thread support in g++])
static __thread int *p = 0; case "$ax_cv_gxx_version" in
], 1.* | 2.* )
wx_cv_cc___thread=yes, AC_MSG_RESULT([doesn't exist])
wx_cv_cc___thread=no wx_cv_cc___thread=no
) ;;
]) 3.*)
AC_MSG_RESULT([broken])
wx_cv_cc___thread=no
;;
*)
AC_MSG_RESULT([works])
wx_cv_cc___thread=yes
;;
esac
else
AC_CACHE_CHECK([for __thread keyword],
wx_cv_cc___thread,
[
AC_TRY_COMPILE([#include <pthread.h>],
[
static __thread int n = 0;
static __thread int *p = 0;
],
wx_cv_cc___thread=yes,
wx_cv_cc___thread=no
)
])
fi
if test "$wx_cv_cc___thread" = "yes"; then if test "$wx_cv_cc___thread" = "yes"; then
AC_DEFINE(HAVE___THREAD_KEYWORD) AC_DEFINE(HAVE___THREAD_KEYWORD)