# ``UNIX -- where you can do anything
# in two keystrokes, or less...''
-noinst_LTLIBRARIES = libpth-mctx.la
+noinst_LTLIBRARIES = libpth-mctx.la libgstcothreads.la
libpth_mctx_la_SOURCES = pth_mctx.c pth_p.h pth_vers.c pth.h pth_acdef.h pth_acmac.h
+libgstcothreads_la_SOURCES = cothreads.c cothread-stack.c cothreads.h
+libgstcothreads_la_LIBADD = libpth-mctx.la $(GLIB_LIBS)
+libgstcothreads_la_CFLAGS = $(GLIB_CFLAGS)
+
noinst_PROGRAMS = test-pth test-pth-pthreads test-pthreads test-pth-pthreads2
-noinst_HEADERS = linuxthreads.h
+noinst_HEADERS = linuxthreads.h cothreads-private.h cothreads.h
test_pth_LDADD = libpth-mctx.la
test_pth_pthreads_LDADD = libpth-mctx.la -lpthread
+# Configure paths for GLIB
+# Owen Taylor 97-11-3
+
+dnl AM_PATH_GLIB([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
+dnl Test for GLIB, and define GLIB_CFLAGS and GLIB_LIBS, if "gmodule" or
+dnl gthread is specified in MODULES, pass to glib-config
+dnl
+AC_DEFUN(AM_PATH_GLIB,
+[dnl
+dnl Get the cflags and libraries from the glib-config script
+dnl
+AC_ARG_WITH(glib-prefix,[ --with-glib-prefix=PFX Prefix where GLIB is installed (optional)],
+ glib_config_prefix="$withval", glib_config_prefix="")
+AC_ARG_WITH(glib-exec-prefix,[ --with-glib-exec-prefix=PFX Exec prefix where GLIB is installed (optional)],
+ glib_config_exec_prefix="$withval", glib_config_exec_prefix="")
+AC_ARG_ENABLE(glibtest, [ --disable-glibtest Do not try to compile and run a test GLIB program],
+ , enable_glibtest=yes)
+
+ if test x$glib_config_exec_prefix != x ; then
+ glib_config_args="$glib_config_args --exec-prefix=$glib_config_exec_prefix"
+ if test x${GLIB_CONFIG+set} != xset ; then
+ GLIB_CONFIG=$glib_config_exec_prefix/bin/glib-config
+ fi
+ fi
+ if test x$glib_config_prefix != x ; then
+ glib_config_args="$glib_config_args --prefix=$glib_config_prefix"
+ if test x${GLIB_CONFIG+set} != xset ; then
+ GLIB_CONFIG=$glib_config_prefix/bin/glib-config
+ fi
+ fi
+
+ for module in . $4
+ do
+ case "$module" in
+ gmodule)
+ glib_config_args="$glib_config_args gmodule"
+ ;;
+ gthread)
+ glib_config_args="$glib_config_args gthread"
+ ;;
+ esac
+ done
+
+ AC_PATH_PROG(GLIB_CONFIG, glib-config, no)
+ min_glib_version=ifelse([$1], ,0.99.7,$1)
+ AC_MSG_CHECKING(for GLIB - version >= $min_glib_version)
+ no_glib=""
+ if test "$GLIB_CONFIG" = "no" ; then
+ no_glib=yes
+ else
+ GLIB_CFLAGS=`$GLIB_CONFIG $glib_config_args --cflags`
+ GLIB_LIBS=`$GLIB_CONFIG $glib_config_args --libs`
+ glib_config_major_version=`$GLIB_CONFIG $glib_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+ glib_config_minor_version=`$GLIB_CONFIG $glib_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+ glib_config_micro_version=`$GLIB_CONFIG $glib_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+ if test "x$enable_glibtest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $GLIB_CFLAGS"
+ LIBS="$GLIB_LIBS $LIBS"
+dnl
+dnl Now check if the installed GLIB is sufficiently new. (Also sanity
+dnl checks the results of glib-config to some extent
+dnl
+ rm -f conf.glibtest
+ AC_TRY_RUN([
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main ()
+{
+ int major, minor, micro;
+ char *tmp_version;
+
+ system ("touch conf.glibtest");
+
+ /* HP/UX 9 (%@#!) writes to sscanf strings */
+ tmp_version = g_strdup("$min_glib_version");
+ if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
+ printf("%s, bad version string\n", "$min_glib_version");
+ exit(1);
+ }
+
+ if ((glib_major_version != $glib_config_major_version) ||
+ (glib_minor_version != $glib_config_minor_version) ||
+ (glib_micro_version != $glib_config_micro_version))
+ {
+ printf("\n*** 'glib-config --version' returned %d.%d.%d, but GLIB (%d.%d.%d)\n",
+ $glib_config_major_version, $glib_config_minor_version, $glib_config_micro_version,
+ glib_major_version, glib_minor_version, glib_micro_version);
+ printf ("*** was found! If glib-config was correct, then it is best\n");
+ printf ("*** to remove the old version of GLIB. You may also be able to fix the error\n");
+ printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
+ printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
+ printf("*** required on your system.\n");
+ printf("*** If glib-config was wrong, set the environment variable GLIB_CONFIG\n");
+ printf("*** to point to the correct copy of glib-config, and remove the file config.cache\n");
+ printf("*** before re-running configure\n");
+ }
+ else if ((glib_major_version != GLIB_MAJOR_VERSION) ||
+ (glib_minor_version != GLIB_MINOR_VERSION) ||
+ (glib_micro_version != GLIB_MICRO_VERSION))
+ {
+ printf("*** GLIB header files (version %d.%d.%d) do not match\n",
+ GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
+ printf("*** library (version %d.%d.%d)\n",
+ glib_major_version, glib_minor_version, glib_micro_version);
+ }
+ else
+ {
+ if ((glib_major_version > major) ||
+ ((glib_major_version == major) && (glib_minor_version > minor)) ||
+ ((glib_major_version == major) && (glib_minor_version == minor) && (glib_micro_version >= micro)))
+ {
+ return 0;
+ }
+ else
+ {
+ printf("\n*** An old version of GLIB (%d.%d.%d) was found.\n",
+ glib_major_version, glib_minor_version, glib_micro_version);
+ printf("*** You need a version of GLIB newer than %d.%d.%d. The latest version of\n",
+ major, minor, micro);
+ printf("*** GLIB is always available from ftp://ftp.gtk.org.\n");
+ printf("***\n");
+ printf("*** If you have already installed a sufficiently new version, this error\n");
+ printf("*** probably means that the wrong copy of the glib-config shell script is\n");
+ printf("*** being found. The easiest way to fix this is to remove the old version\n");
+ printf("*** of GLIB, but you can also set the GLIB_CONFIG environment to point to the\n");
+ printf("*** correct copy of glib-config. (In this case, you will have to\n");
+ printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
+ printf("*** so that the correct libraries are found at run-time))\n");
+ }
+ }
+ return 1;
+}
+],, no_glib=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$no_glib" = x ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+ else
+ AC_MSG_RESULT(no)
+ if test "$GLIB_CONFIG" = "no" ; then
+ echo "*** The glib-config script installed by GLIB could not be found"
+ echo "*** If GLIB was installed in PREFIX, make sure PREFIX/bin is in"
+ echo "*** your path, or set the GLIB_CONFIG environment variable to the"
+ echo "*** full path to glib-config."
+ else
+ if test -f conf.glibtest ; then
+ :
+ else
+ echo "*** Could not run GLIB test program, checking why..."
+ CFLAGS="$CFLAGS $GLIB_CFLAGS"
+ LIBS="$LIBS $GLIB_LIBS"
+ AC_TRY_LINK([
+#include <glib.h>
+#include <stdio.h>
+], [ return ((glib_major_version) || (glib_minor_version) || (glib_micro_version)); ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding GLIB or finding the wrong"
+ echo "*** version of GLIB. If it is not finding GLIB, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
+ echo "***"
+ echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
+ echo "*** came with the system with the command"
+ echo "***"
+ echo "*** rpm --erase --nodeps gtk gtk-devel" ],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means GLIB was incorrectly installed"
+ echo "*** or that you have moved GLIB since it was installed. In the latter case, you"
+ echo "*** may want to edit the glib-config script: $GLIB_CONFIG" ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ GLIB_CFLAGS=""
+ GLIB_LIBS=""
+ ifelse([$3], , :, [$3])
+ fi
+ AC_SUBST(GLIB_CFLAGS)
+ AC_SUBST(GLIB_LIBS)
+ rm -f conf.glibtest
+])
+dnl Perform a check for a feature for GStreamer
+dnl Richard Boulton <richard-alsa@tartarus.org>
+dnl Thomas Vander Stichele <thomas@apestaart.org> added useful stuff
+dnl Last modification: 25/06/2001
+dnl GST_CHECK_FEATURE(FEATURE-NAME, FEATURE-DESCRIPTION,
+dnl DEPENDENT-PLUGINS, TEST-FOR-FEATURE,
+dnl DISABLE-BY-DEFAULT, ACTION-IF-USE, ACTION-IF-NOTUSE)
+dnl
+dnl This macro adds a command line argument to enable the user to enable
+dnl or disable a feature, and if the feature is enabled, performs a supplied
+dnl test to check if the feature is available.
+dnl
+dnl The test should define HAVE_<FEATURE-NAME> to "yes" or "no" depending
+dnl on whether the feature is available.
+dnl
+dnl The macro will set USE_<FEATURE-NAME> to "yes" or "no" depending on
+dnl whether the feature is to be used.
+dnl Thomas changed this, so that when USE_<FEATURE-NAME> was already set
+dnl to no, then it stays that way.
+dnl
+dnl The macro will call AM_CONDITIONAL(USE_<<FEATURE-NAME>, ...) to allow
+dnl the feature to control what is built in Makefile.ams. If you want
+dnl additional actions resulting from the test, you can add them with the
+dnl ACTION-IF-USE and ACTION-IF-NOTUSE parameters.
+dnl
+dnl FEATURE-NAME is the name of the feature, and should be in
+dnl purely upper case characters.
+dnl FEATURE-DESCRIPTION is used to describe the feature in help text for
+dnl the command line argument.
+dnl DEPENDENT-PLUGINS lists any plugins which depend on this feature.
+dnl TEST-FOR-FEATURE is a test which sets HAVE_<FEATURE-NAME> to "yes"
+dnl or "no" depending on whether the feature is
+dnl available.
+dnl DISABLE-BY-DEFAULT if "disabled", the feature is disabled by default,
+dnl if any other value, the feature is enabled by default.
+dnl ACTION-IF-USE any extra actions to perform if the feature is to be
+dnl used.
+dnl ACTION-IF-NOTUSE any extra actions to perform if the feature is not to
+dnl be used.
+dnl
+dnl
+dnl thomas :
+dnl we also added a history.
+dnl GST_PLUGINS_YES will contain all plugins to be built
+dnl that were checked through GST_CHECK_FEATURE
+dnl GST_PLUGINS_NO will contain those that won't be built
+
+AC_DEFUN(GST_CHECK_FEATURE,
+[dnl
+builtin(define, [gst_endisable], ifelse($5, [disabled], [enable], [disable]))dnl
+dnl if it is set to NO, then don't even consider it for building
+NOUSE=
+if test "x$USE_[$1]" = "xno"; then
+ NOUSE="yes"
+fi
+AC_ARG_ENABLE(translit([$1], A-Z, a-z),
+ [ ]builtin(format, --%-26s gst_endisable %s, gst_endisable-translit([$1], A-Z, a-z), [$2]ifelse([$3],,,: [$3])),
+ [ case "${enableval}" in
+ yes) USE_[$1]=yes;;
+ no) USE_[$1]=no;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-translit([$1], A-Z, a-z)) ;;
+ esac],
+ [ USE_$1=]ifelse($5, [disabled], [no], [yes])) dnl DEFAULT
+
+dnl *** set it back to no if it was preset to no
+if test "x$NOUSE" = "xyes"; then
+ USE_[$1]="no"
+ AC_MSG_WARN(*** $3 pre-configured not to be built)
+fi
+NOUSE=
+
+dnl *** If it's enabled
+
+if test x$USE_[$1] = xyes; then
+ gst_check_save_LIBS=$LIBS
+ gst_check_save_LDFLAGS=$LDFLAGS
+ gst_check_save_CFLAGS=$CFLAGS
+ gst_check_save_CPPFLAGS=$CPPFLAGS
+ gst_check_save_CXXFLAGS=$CXXFLAGS
+ HAVE_[$1]=no
+ $4
+ LIBS=$gst_check_save_LIBS
+ LDFLAGS=$gst_check_save_LDFLAGS
+ CFLAGS=$gst_check_save_CFLAGS
+ CPPFLAGS=$gst_check_save_CPPFLAGS
+ CXXFLAGS=$gst_check_save_CXXFLAGS
+
+ dnl If it isn't found, unset USE_[$1]
+ if test x$HAVE_[$1] = xno; then
+ USE_[$1]=no
+ fi
+fi
+dnl *** Warn if it's disabled or not found
+if test x$USE_[$1] = xyes; then
+ ifelse([$6], , :, [$6])
+ GST_PLUGINS_YES="$GST_PLUGINS_YES \n\t[$3]"
+else
+ ifelse([$3], , :, [AC_MSG_NOTICE(
+These plugins will not be built: [$3]
+)])
+ GST_PLUGINS_NO="$GST_PLUGINS_NO \n\t[$3]"
+ ifelse([$7], , :, [$7])
+fi
+dnl *** Define the conditional as appropriate
+AM_CONDITIONAL(USE_[$1], test x$USE_[$1] = xyes)
+])
+
+dnl Use a -config program which accepts --cflags and --libs parameters
+dnl to set *_CFLAGS and *_LIBS and check existence of a feature.
+dnl Richard Boulton <richard-alsa@tartarus.org>
+dnl Last modification: 26/06/2001
+dnl GST_CHECK_CONFIGPROG(FEATURE-NAME, CONFIG-PROG-FILENAME, MODULES)
+dnl
+dnl This check was written for GStreamer: it should be renamed and checked
+dnl for portability if you decide to use it elsewhere.
+dnl
+AC_DEFUN(GST_CHECK_CONFIGPROG,
+[
+ AC_PATH_PROG([$1]_CONFIG, [$2], no)
+ if test x$[$1]_CONFIG = xno; then
+ [$1]_LIBS=
+ [$1]_CFLAGS=
+ HAVE_[$1]=no
+ else
+ [$1]_LIBS=`[$2] --libs [$3]`
+ [$1]_CFLAGS=`[$2] --cflags [$3]`
+ HAVE_[$1]=yes
+ fi
+ AC_SUBST([$1]_LIBS)
+ AC_SUBST([$1]_CFLAGS)
+])
+
+dnl Use AC_CHECK_LIB and AC_CHECK_HEADER to do both tests at once
+dnl sets HAVE_module if we have it
+dnl Richard Boulton <richard-alsa@tartarus.org>
+dnl Last modification: 26/06/2001
+dnl GST_CHECK_LIBHEADER(FEATURE-NAME, LIB NAME, LIB FUNCTION, EXTRA LD FLAGS,
+dnl HEADER NAME, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
+dnl
+dnl This check was written for GStreamer: it should be renamed and checked
+dnl for portability if you decide to use it elsewhere.
+dnl
+AC_DEFUN(GST_CHECK_LIBHEADER,
+[
+ AC_CHECK_LIB([$2], [$3], HAVE_[$1]=yes, HAVE_[$1]=no,[$4])
+ if test "x$HAVE_[$1]" = "xyes"; then
+ AC_CHECK_HEADER([$5], :, HAVE_[$1]=no)
+ if test "x$HAVE_[$1]" = "xyes"; then
+ dnl execute what needs to be
+ ifelse([$6], , :, [$6])
+ else
+ ifelse([$7], , :, [$7])
+ fi
+ else
+ AC_MSG_WARN([$1] not found)
+ fi
+ AC_SUBST(HAVE_[$1])
+]
+)
+
+dnl
+dnl Add a subsystem --disable flag and all the necessary symbols and substitions
+dnl
+dnl GST_SUBSYSTEM_DISABLE(SYSNAME, [subsystem name])
+dnl
+AC_DEFUN(GST_SUBSYSTEM_DISABLE,
+[AC_ARG_ENABLE(translit([$1], A-Z, a-z),
+[ ]builtin(format, --disable-%-17s disable %s, translit([$1], A-Z, a-z), $2),
+[ case "${enableval}" in
+ yes) GST_DISABLE_[$1]=no ;;
+ no) GST_DISABLE_[$1]=yes ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-translit([$1], A-Z, a-z)) ;;
+ esac],
+[GST_DISABLE_[$1]=no]) dnl Default value
+if test x$GST_DISABLE_[$1] = xyes; then
+ AC_DEFINE(GST_DISABLE_[$1], 1, [Disable $2])
+ GST_DISABLE_[$1]_DEFINE=-DGST_DISABLE_[$1]
+fi
+AM_CONDITIONAL(GST_DISABLE_[$1], test x$GST_DISABLE_[$1] = xyes)
+AC_SUBST(GST_DISABLE_[$1]_DEFINE)
+GST_SUBSYSTEM_DISABLE_DEFINES="$GST_SUBSYTEM_DISABLE_DEFINES $GST_DISABLE_[$1]_DEFINE"
+])
+dnl Check for LinuxThreads
+dnl COTHREADS_CHECK_LINUXTHREADS
+dnl no arguments
+AC_DEFUN([COTHREADS_CHECK_LINUXTHREADS], [
+ AC_CACHE_CHECK([for LinuxThreads],
+ [cothreads_cv_linuxthreads],
+ [AC_EGREP_CPP(pthread_kill_other_threads_np,
+ [#include <pthread.h>],
+ [cothreads_cv_linuxthreads=yes],
+ [cothreads_cv_linuxthreads=no])
+ ])
+ if test $cothreads_cv_linuxthreads = yes; then
+ AC_DEFINE(HAVE_LINUXTHREADS,1,[if you have LinuxThreads])
+ fi
+])
+
+dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
+dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
+dnl also defines GSTUFF_PKG_ERRORS on error
+AC_DEFUN(PKG_CHECK_MODULES, [
+ succeeded=no
+
+ if test -z "$PKG_CONFIG"; then
+ AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+ fi
+
+ if test "$PKG_CONFIG" = "no" ; then
+ echo "*** The pkg-config script could not be found. Make sure it is"
+ echo "*** in your path, or set the PKG_CONFIG environment variable"
+ echo "*** to the full path to pkg-config."
+ echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
+ else
+ if ! $PKG_CONFIG --atleast-pkgconfig-version 0.7.0; then
+ echo "*** Your version of pkg-config is too old. You need version 0.7.0 or newer."
+ echo "*** See http://www.freedesktop.org/software/pkgconfig"
+ else
+ AC_MSG_CHECKING(for $2)
+
+ if $PKG_CONFIG --exists "$2" ; then
+ AC_MSG_RESULT(yes)
+ succeeded=yes
+
+ AC_MSG_CHECKING($1_CFLAGS)
+ $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
+ AC_MSG_RESULT($$1_CFLAGS)
+
+ AC_MSG_CHECKING($1_LIBS)
+ $1_LIBS=`$PKG_CONFIG --libs "$2"`
+ AC_MSG_RESULT($$1_LIBS)
+ else
+ $1_CFLAGS=""
+ $1_LIBS=""
+ ## If we have a custom action on failure, don't print errors, but
+ ## do set a variable so people can do so.
+ $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
+ ifelse([$4], ,echo $$1_PKG_ERRORS,)
+ fi
+
+ AC_SUBST($1_CFLAGS)
+ AC_SUBST($1_LIBS)
+ fi
+ fi
+
+ if test $succeeded = yes; then
+ ifelse([$3], , :, [$3])
+ else
+ ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
+ fi
+])
+
+
dnl ##
dnl ## NGPT - Next Generation POSIX Threading
dnl ## Copyright (c) 2001 IBM Corporation <babt@us.ibm.com>
AC_MSG_VERBOSE([$]$2)
AC_MSG_VERBOSE([$]$3)
])
-
-dnl Check for LinuxThreads
-dnl COTHREADS_CHECK_LINUXTHREADS
-dnl no arguments
-AC_DEFUN([COTHREADS_CHECK_LINUXTHREADS], [
- AC_CACHE_CHECK([for LinuxThreads],
- [cothreads_cv_linuxthreads],
- [AC_EGREP_CPP(pthread_kill_other_threads_np,
- [#include <pthread.h>],
- [cothreads_cv_linuxthreads=yes],
- [cothreads_cv_linuxthreads=no])
- ])
- if test $cothreads_cv_linuxthreads = yes; then
- AC_DEFINE(HAVE_LINUXTHREADS,1,[if you have LinuxThreads])
- fi
-])
echo "to pass any to it, please specify them on the $0 command line."
fi
+echo "+ creating acinclude.m4"
+cat m4/*.m4 > acinclude.m4
+
echo "+ running aclocal ..."
aclocal $ACLOCAL_FLAGS || {
echo
AC_MSG_VERBOSE([decided mctx dispatching: $mctx_dsp])
AC_MSG_VERBOSE([decided mctx stack setup: $mctx_stk])
+AC_MSG_PART(Checking for GLib)
+
+dnl Check for glib2
+translit(dnm, m, l) AM_CONDITIONAL(USE_GLIB2, true)
+GST_CHECK_FEATURE(GLIB2, [use of glib-2.0 and GObject], , [
+ PKG_CHECK_MODULES(GLIB2, glib-2.0 gthread-2.0,
+ HAVE_GLIB2=yes,HAVE_GLIB2=no)
+ GLIB_LIBS=$GLIB2_LIBS
+ GLIB_CFLAGS=$GLIB2_CFLAGS
+ AC_SUBST(GLIB_LIBS)
+ AC_SUBST(GLIB_CFLAGS)
+ # if we've gotten this far, the user has specifically asked that glib2 be
+ # used. if we have no glib2, that is an error.
+ if test "x$HAVE_GLIB2" = "xno"; then
+ AC_MSG_ERROR([no glib2 found, try --disable-glib2])
+ fi
+], enabled, [
+dnl AC_DEFINE(USE_GLIB2)
+])
+dnl AC_SUBST(USE_GLIB2)
+
+if test x$USE_GLIB2 = xno; then
+ dnl Check for glib and gtk
+ AM_PATH_GLIB(1.2.0,,
+ AC_MSG_ERROR(Cannot find glib: Is glib-config in path?),
+ glib gmodule gthread)
+fi
+
dnl ## Additional support for some special platform/compiler options
case "$PLATFORM:$CC" in
* Boston, MA 02111-1307, USA.
*/
-/* chunks can contain 1 or more blocks, each block contains one cothread stack */
+#include "cothreads-private.h"
+#include "linuxthreads.h"
-enum cothread_attr_method
+typedef enum _cothread_block_state cothread_block_state;
+typedef struct _cothread_chunk cothread_chunk;
+
+enum _cothread_block_state
{
- COTHREAD_ATTR_METHOD_MALLOC, /* cothread stacks on the heap, one block per chunk */
- COTHREAD_ATTR_METHOD_GTHREAD_STACK, /* cothread stacks within the current gthread's stack */
- COTHREAD_ATTR_METHOD_LINUXTHREADS, /* a hack that allows for linuxthreads compatibility */
-}
+ COTHREAD_BLOCK_STATE_UNUSED=0,
+ COTHREAD_BLOCK_STATE_IN_USE
+};
+
+struct _cothread_chunk {
+ cothread_chunk *next;
+ cothread_block_state *block_states;
+ char *chunk;
+ int size;
+ int reserved_bottom;
+ gboolean needs_free;
+ int nblocks;
+};
-struct cothread_attr {
- enum cothread_attr_method method;
- int chunk_size;
- int blocks_per_chunk;
-}
-#ifdef HAVE_LINUXTHREADS
-static struct cothread_attr cothread_attr_default =
+static cothread_chunk* cothread_chunk_new (unsigned long size, gboolean allocate);
+static void cothread_chunk_free (cothread_chunk *chunk);
+static gboolean cothread_stack_alloc_chunked (cothread_chunk *chunk, char **low, char **high,
+ cothread_chunk *(*chunk_new)(cothread_chunk*));
+static cothread_chunk* cothread_chunk_new_linuxthreads (cothread_chunk* old);
+
+
+gboolean
+cothread_stack_alloc_on_heap (char **low, char **high)
{
- COTHREAD_ATTR_METHOD_LINUXTHREADS, /* use the linuxthreads hack */
- 0x20000, /* 2 MB */
- 8 /* for a stack size of 256 KB */
+ *low = g_malloc (_cothread_attr_global->chunk_size / _cothread_attr_global->blocks_per_chunk);
+ *high = *low + sizeof (*low) - 1;
+ return TRUE;
}
-#else
-static struct cothread_attr cothread_attr_default =
+
+gboolean
+cothread_stack_alloc_on_gthread_stack (char **low, char **high)
{
- COTHREAD_ATTR_METHOD_GTHREAD_STACK, /* this is what the old cothreads code does */
- 0x10000, /* only 1 MB due the the FreeBSD defaults */
- 8 /* for a stack size of 128 KB */
+ cothread_chunk *chunk = NULL;
+ static GStaticPrivate chunk_key = G_STATIC_PRIVATE_INIT;
+
+ if (!(chunk = g_static_private_get(&chunk_key))) {
+ chunk = cothread_chunk_new (_cothread_attr_global->chunk_size, FALSE);
+ g_static_private_set (&chunk_key, chunk, cothread_chunk_free);
+ }
+
+ return cothread_stack_alloc_chunked (chunk, low, high, NULL);
}
-#endif
-
-static struct cothread_attr *_attr = NULL; /* set in cothread_init() */
-enum cothread_block_state
+gboolean
+cothread_stack_alloc_linuxthreads (char **low, char **high)
{
- COTHREAD_BLOCK_STATE_UNUSED=0,
- COTHREAD_BLOCK_STATE_IN_USE
+ cothread_chunk *chunk = NULL;
+ static GStaticPrivate chunk_key = G_STATIC_PRIVATE_INIT;
+
+ if (!(chunk = g_static_private_get(&chunk_key))) {
+ chunk = cothread_chunk_new (_cothread_attr_global->chunk_size, FALSE);
+ g_static_private_set (&chunk_key, chunk, cothread_chunk_free);
+ }
+
+ return cothread_stack_alloc_chunked (chunk, low, high, cothread_chunk_new_linuxthreads);
}
-struct cothread_chunk {
- struct cothread_chunk *next;
- enum cothread_block_state *block_states;
- char *chunk;
- int size;
- int reserved_bottom;
- gboolean needs_free;
-}
/* size must be a power of two. */
-struct cothread_chunk*
+static cothread_chunk*
cothread_chunk_new (unsigned long size, gboolean allocate)
{
- struct cothread_chunk *ret;
+ cothread_chunk *ret;
char *sp = CURRENT_STACK_FRAME;
- ret = g_new0 (struct cothread_chunk, 1);
- ret->block_states = g_new0 (enum cothread_block_state, _attr->blocks_per_chunk);
+ ret = g_new0 (cothread_chunk, 1);
+ ret->nblocks = _cothread_attr_global->blocks_per_chunk;
+ ret->block_states = g_new0 (cothread_block_state, ret->nblocks);
if (allocate) {
if (!posix_memalign(&ret->chunk, size, size))
} else {
/* if we don't allocate the chunk, we must already be in it. */
- ret->chunk = (unsigned long) sp &~ (size - 1);
+ ret->chunk = (char*) ((unsigned long) sp &~ (size - 1));
#if PTH_STACK_GROWTH > 0
ret->reserved_bottom = sp - ret->chunk;
#else
return ret;
}
-gboolean
-cothread_stack_alloc_on_heap (char **low, char **high)
-{
- *low = g_malloc (_attr->chunk_size / _attr->blocks_per_chunk);
- *high = *low + sizeof (*low);
- return TRUE;
-}
-
/**
* cothread_stack_alloc_chunked:
* @chunk: the chunk for the
* Make a new cothread stack out of a chunk. Chunks are assumed to be aligned on
- * boundaries of _attr->chunk_size.
+ * boundaries of _cothread_attr_global->chunk_size.
*
* Returns: the new cothread context
*/
- /* we assume that the stack is aligned on _attr->chunk_size boundaries */
+ /* we assume that the stack is aligned on _cothread_attr_global->chunk_size boundaries */
static gboolean
-cothread_stack_alloc_chunked (struct cothread_chunk *chunk, char **low, char **high,
- (struct cothread_chunk*)(*chunk_new)(struct cothread_chunk*))
+cothread_stack_alloc_chunked (cothread_chunk *chunk, char **low, char **high,
+ cothread_chunk *(*chunk_new)(cothread_chunk*))
{
int block;
- struct cothread_chunk *walk, *last;
+ cothread_chunk *walk, *last;
for (walk=chunk; walk; last=walk, walk=walk->next) {
- if (chunk->block_states[0] == COTHREAD_BLOCK_STATE_UNUSED) {
- chunk->block_states[0] = COTHREAD_BLOCK_STATE_IN_USE;
+ if (walk->block_states[0] == COTHREAD_BLOCK_STATE_UNUSED) {
+ walk->block_states[0] = COTHREAD_BLOCK_STATE_IN_USE;
#if PTH_STACK_GROWTH > 0
- *low = chunk->chunk + chunk->reserved_bottom;
- *high = chunk->chunk + chunk->chunk_size / _attr->blocks_per_chunk;
+ *low = walk->chunk + walk->reserved_bottom;
+ *high = walk->chunk + walk->size / walk->nblocks;
#else
- *low = chunk->chunk + chunk->size * (chunk->nblocks - 1) / chunk->nblocks;
- *high = chunk->chunk + chunk->size - chunk->reserved_bottom;
+ *low = walk->chunk + walk->size * (walk->nblocks - 1) / walk->nblocks;
+ *high = walk->chunk + walk->size - walk->reserved_bottom;
#endif
return TRUE;
}
- for (block = 1; block < _attr->blocks_per_chunk; block++) {
- if (chunk->block_states[block] == COTHREAD_BLOCK_STATE_UNUSED) {
+ for (block = 1; block < walk->nblocks; block++) {
+ if (walk->block_states[block] == COTHREAD_BLOCK_STATE_UNUSED) {
#if PTH_STACK_GROWTH > 0
- *low = chunk->chunk + chunk->size * (chunk->nblocks - block - 1) / chunk->nblocks;
+ *low = walk->chunk + walk->size * (walk->nblocks - block - 1) / walk->nblocks;
#else
- *low = chunk->chunk + chunk->size * (block - 1) / chunk->nblocks;
+ *low = walk->chunk + walk->size * (block - 1) / walk->nblocks;
#endif
- *high = *low + chunk->size / chunk->nblocks;
+ *high = *low + walk->size / walk->nblocks;
return TRUE;
}
}
return cothread_stack_alloc_chunked (chunk_new (last), low, high, NULL);
}
-gboolean
-cothread_stack_alloc_on_gthread_stack (char **low, char **high)
-{
- struct cothread_chunk *chunk = NULL;
- static GStaticPrivate chunk_key = G_STATIC_PRIVATE_INIT;
-
- if (!(chunk = g_static_private_get(&chunk_key))) {
- chunk = cothread_chunk_new (_attr->size, FALSE);
- g_static_private_set (&chunk_key, chunk, cothread_chunk_free);
- }
-
- return cothread_stack_alloc_chunked (chunk, low, high, NULL);
-}
-
-gboolean
-cothread_stack_alloc_linuxthreads (char **low, char **high)
+static void
+cothread_chunk_free (cothread_chunk *chunk)
{
- struct cothread_chunk *chunk = NULL;
- static GStaticPrivate chunk_key = G_STATIC_PRIVATE_INIT;
-
- if (!(chunk = g_static_private_get(&chunk_key))) {
- chunk = cothread_chunk_new (_attr->size, FALSE);
- g_static_private_set (&chunk_key, chunk, cothread_chunk_free);
- }
-
- return cothread_stack_alloc_chunked (chunk, low, high, cothread_chunk_new_linuxthreads);
+ /* FIXME: implement me please */
}
-struct cothread_chunk*
-cothread_chunk_new_linuxthreads (struct cothread_chunk* old)
+static cothread_chunk*
+cothread_chunk_new_linuxthreads (cothread_chunk* old)
{
- struct cothread_chunk *new;
+ cothread_chunk *new;
void *pthread_descr;
- new = cothread_chunk_new (_attr->chunk_size, TRUE);
+ new = cothread_chunk_new (_cothread_attr_global->chunk_size, TRUE);
pthread_descr = __linuxthreads_self();
#if PTH_STACK_GROWTH > 0
/* we don't really know pthread_descr's size in this case, but we can be
new->reserved_bottom = 2048;
memcpy(new->chunk, pthread_descr, 2048);
#else
- new->reserved_bottom = ((unsigned long) pthread_descr | (_attr->chunk_size - 1)) - (unsigned long) pthread_descr;
+ new->reserved_bottom = ((unsigned long) pthread_descr | (new->size - 1)) - (unsigned long) pthread_descr;
memcpy(new->chunk + new->size - new->reserved_bottom - 1, pthread_descr, new->reserved_bottom);
#endif
old->next = new;
return new;
}
-
-
--- /dev/null
+/* Pthread-friendly coroutines with pth
+ * Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
+ *
+ * cothread-private.h: private prototypes
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __COTHREAD_PRIVATE_H__
+#define __COTHREAD_PRIVATE_H__
+
+#include <cothreads.h>
+
+
+extern cothread_attr *_cothread_attr_global;
+
+gboolean cothread_stack_alloc_on_gthread_stack (char **low, char **high);
+gboolean cothread_stack_alloc_linuxthreads (char **low, char **high);
+gboolean cothread_stack_alloc_on_heap (char **low, char **high);
+
+
+#endif /* __COTHREAD_PRIVATE_H__ */
--- /dev/null
+/* Pthread-friendly coroutines with pth
+ * Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
+ *
+ * cothread.c: public API implementation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "cothreads-private.h"
+
+
+#ifdef HAVE_LINUXTHREADS
+static cothread_attr cothread_attr_default =
+{
+ COTHREAD_ATTR_METHOD_LINUXTHREADS, /* use the linuxthreads hack */
+ 0x200000, /* 2 MB */
+ 8, /* for a stack size of 256 KB */
+ TRUE /* set up the first chunk */
+};
+#else
+static cothread_attr cothread_attr_default =
+{
+ COTHREAD_ATTR_METHOD_GTHREAD_STACK, /* this is what the old cothreads code does */
+ 0x100000, /* only 1 MB due the the FreeBSD defaults */
+ 8, /* for a stack size of 128 KB */
+ TRUE /* set up the first chunk */
+};
+#endif
+
+cothread_attr *_cothread_attr_global = NULL;
+
+static gboolean (*stack_alloc_func) (char**, char**);
+
+cothread*
+cothread_init (cothread_attr *attr)
+{
+ static cothread_attr _attr;
+
+ if (_cothread_attr_global) {
+ g_warning ("cothread system has already been initialized");
+ return;
+ }
+
+ if (!attr)
+ _attr = cothread_attr_default;
+ else
+ _attr = *attr;
+
+ _cothread_attr_global = &_attr;
+
+ switch (_cothread_attr_global->method) {
+ case COTHREAD_ATTR_METHOD_MALLOC:
+ stack_alloc_func = cothread_stack_alloc_on_heap;
+ break;
+ case COTHREAD_ATTR_METHOD_GTHREAD_STACK:
+ stack_alloc_func = cothread_stack_alloc_on_gthread_stack;
+ break;
+ case COTHREAD_ATTR_METHOD_LINUXTHREADS:
+ stack_alloc_func = cothread_stack_alloc_linuxthreads;
+ break;
+ default:
+ g_error ("unexpected value for attr method %d", _cothread_attr_global->method);
+ }
+
+ return cothread_create (NULL);
+}
+
+cothread*
+cothread_create (void (*func)(void))
+{
+ char *low, *high;
+ cothread *ret = g_new0 (cothread, 1);
+
+ if (!func) {
+ /* we are being asked to save the current thread into a new cothread. this
+ * only happens for the first cothread. */
+ if (_cothread_attr_global->alloc_cothread_0)
+ if (!stack_alloc_func (&low, &high))
+ g_error ("couldn't create cothread 0");
+
+ pth_mctx_save (ret);
+ return ret;
+ }
+
+ if (!stack_alloc_func (&low, &high))
+ g_error ("could not allocate a new cothread stack");
+
+ pth_mctx_set (ret, func, low, high);
+
+ return ret;
+}
+
+void
+cothread_destroy (cothread *thread)
+{
+ /* FIXME: have method-specific destroy functions. */
+
+ g_free (thread);
+}
--- /dev/null
+/* Pthread-friendly coroutines with pth
+ * Copyright (C) 2002 Andy Wingo <wingo@pobox.com>
+ *
+ * cothread.h: public API
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __COTHREAD_H__
+#define __COTHREAD_H__
+
+#include <glib.h>
+#include <pth_p.h>
+
+
+typedef pth_mctx_t cothread;
+typedef enum _cothread_attr_method cothread_attr_method;
+typedef struct _cothread_attr cothread_attr;
+
+
+enum _cothread_attr_method
+{
+ COTHREAD_ATTR_METHOD_MALLOC, /* cothread stacks on the heap, one block per chunk */
+ COTHREAD_ATTR_METHOD_GTHREAD_STACK, /* cothread stacks within the current gthread's stack */
+ COTHREAD_ATTR_METHOD_LINUXTHREADS, /* a hack that allows for linuxthreads compatibility */
+};
+
+struct _cothread_attr {
+ cothread_attr_method method;
+ int chunk_size;
+ int blocks_per_chunk;
+ gboolean alloc_cothread_0;
+};
+
+
+cothread* cothread_init (cothread_attr *attr);
+cothread* cothread_create (void (*func)(void));
+void cothread_destroy (cothread *thread);
+
+#define cothread_switch(old,new) pth_mctx_switch(old,new)
+
+#endif /* __COTHREAD_H__ */
--- /dev/null
+# Configure paths for GLIB
+# Owen Taylor 97-11-3
+
+dnl AM_PATH_GLIB([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
+dnl Test for GLIB, and define GLIB_CFLAGS and GLIB_LIBS, if "gmodule" or
+dnl gthread is specified in MODULES, pass to glib-config
+dnl
+AC_DEFUN(AM_PATH_GLIB,
+[dnl
+dnl Get the cflags and libraries from the glib-config script
+dnl
+AC_ARG_WITH(glib-prefix,[ --with-glib-prefix=PFX Prefix where GLIB is installed (optional)],
+ glib_config_prefix="$withval", glib_config_prefix="")
+AC_ARG_WITH(glib-exec-prefix,[ --with-glib-exec-prefix=PFX Exec prefix where GLIB is installed (optional)],
+ glib_config_exec_prefix="$withval", glib_config_exec_prefix="")
+AC_ARG_ENABLE(glibtest, [ --disable-glibtest Do not try to compile and run a test GLIB program],
+ , enable_glibtest=yes)
+
+ if test x$glib_config_exec_prefix != x ; then
+ glib_config_args="$glib_config_args --exec-prefix=$glib_config_exec_prefix"
+ if test x${GLIB_CONFIG+set} != xset ; then
+ GLIB_CONFIG=$glib_config_exec_prefix/bin/glib-config
+ fi
+ fi
+ if test x$glib_config_prefix != x ; then
+ glib_config_args="$glib_config_args --prefix=$glib_config_prefix"
+ if test x${GLIB_CONFIG+set} != xset ; then
+ GLIB_CONFIG=$glib_config_prefix/bin/glib-config
+ fi
+ fi
+
+ for module in . $4
+ do
+ case "$module" in
+ gmodule)
+ glib_config_args="$glib_config_args gmodule"
+ ;;
+ gthread)
+ glib_config_args="$glib_config_args gthread"
+ ;;
+ esac
+ done
+
+ AC_PATH_PROG(GLIB_CONFIG, glib-config, no)
+ min_glib_version=ifelse([$1], ,0.99.7,$1)
+ AC_MSG_CHECKING(for GLIB - version >= $min_glib_version)
+ no_glib=""
+ if test "$GLIB_CONFIG" = "no" ; then
+ no_glib=yes
+ else
+ GLIB_CFLAGS=`$GLIB_CONFIG $glib_config_args --cflags`
+ GLIB_LIBS=`$GLIB_CONFIG $glib_config_args --libs`
+ glib_config_major_version=`$GLIB_CONFIG $glib_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+ glib_config_minor_version=`$GLIB_CONFIG $glib_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+ glib_config_micro_version=`$GLIB_CONFIG $glib_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+ if test "x$enable_glibtest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $GLIB_CFLAGS"
+ LIBS="$GLIB_LIBS $LIBS"
+dnl
+dnl Now check if the installed GLIB is sufficiently new. (Also sanity
+dnl checks the results of glib-config to some extent
+dnl
+ rm -f conf.glibtest
+ AC_TRY_RUN([
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main ()
+{
+ int major, minor, micro;
+ char *tmp_version;
+
+ system ("touch conf.glibtest");
+
+ /* HP/UX 9 (%@#!) writes to sscanf strings */
+ tmp_version = g_strdup("$min_glib_version");
+ if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
+ printf("%s, bad version string\n", "$min_glib_version");
+ exit(1);
+ }
+
+ if ((glib_major_version != $glib_config_major_version) ||
+ (glib_minor_version != $glib_config_minor_version) ||
+ (glib_micro_version != $glib_config_micro_version))
+ {
+ printf("\n*** 'glib-config --version' returned %d.%d.%d, but GLIB (%d.%d.%d)\n",
+ $glib_config_major_version, $glib_config_minor_version, $glib_config_micro_version,
+ glib_major_version, glib_minor_version, glib_micro_version);
+ printf ("*** was found! If glib-config was correct, then it is best\n");
+ printf ("*** to remove the old version of GLIB. You may also be able to fix the error\n");
+ printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
+ printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
+ printf("*** required on your system.\n");
+ printf("*** If glib-config was wrong, set the environment variable GLIB_CONFIG\n");
+ printf("*** to point to the correct copy of glib-config, and remove the file config.cache\n");
+ printf("*** before re-running configure\n");
+ }
+ else if ((glib_major_version != GLIB_MAJOR_VERSION) ||
+ (glib_minor_version != GLIB_MINOR_VERSION) ||
+ (glib_micro_version != GLIB_MICRO_VERSION))
+ {
+ printf("*** GLIB header files (version %d.%d.%d) do not match\n",
+ GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
+ printf("*** library (version %d.%d.%d)\n",
+ glib_major_version, glib_minor_version, glib_micro_version);
+ }
+ else
+ {
+ if ((glib_major_version > major) ||
+ ((glib_major_version == major) && (glib_minor_version > minor)) ||
+ ((glib_major_version == major) && (glib_minor_version == minor) && (glib_micro_version >= micro)))
+ {
+ return 0;
+ }
+ else
+ {
+ printf("\n*** An old version of GLIB (%d.%d.%d) was found.\n",
+ glib_major_version, glib_minor_version, glib_micro_version);
+ printf("*** You need a version of GLIB newer than %d.%d.%d. The latest version of\n",
+ major, minor, micro);
+ printf("*** GLIB is always available from ftp://ftp.gtk.org.\n");
+ printf("***\n");
+ printf("*** If you have already installed a sufficiently new version, this error\n");
+ printf("*** probably means that the wrong copy of the glib-config shell script is\n");
+ printf("*** being found. The easiest way to fix this is to remove the old version\n");
+ printf("*** of GLIB, but you can also set the GLIB_CONFIG environment to point to the\n");
+ printf("*** correct copy of glib-config. (In this case, you will have to\n");
+ printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
+ printf("*** so that the correct libraries are found at run-time))\n");
+ }
+ }
+ return 1;
+}
+],, no_glib=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$no_glib" = x ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+ else
+ AC_MSG_RESULT(no)
+ if test "$GLIB_CONFIG" = "no" ; then
+ echo "*** The glib-config script installed by GLIB could not be found"
+ echo "*** If GLIB was installed in PREFIX, make sure PREFIX/bin is in"
+ echo "*** your path, or set the GLIB_CONFIG environment variable to the"
+ echo "*** full path to glib-config."
+ else
+ if test -f conf.glibtest ; then
+ :
+ else
+ echo "*** Could not run GLIB test program, checking why..."
+ CFLAGS="$CFLAGS $GLIB_CFLAGS"
+ LIBS="$LIBS $GLIB_LIBS"
+ AC_TRY_LINK([
+#include <glib.h>
+#include <stdio.h>
+], [ return ((glib_major_version) || (glib_minor_version) || (glib_micro_version)); ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding GLIB or finding the wrong"
+ echo "*** version of GLIB. If it is not finding GLIB, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
+ echo "***"
+ echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
+ echo "*** came with the system with the command"
+ echo "***"
+ echo "*** rpm --erase --nodeps gtk gtk-devel" ],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means GLIB was incorrectly installed"
+ echo "*** or that you have moved GLIB since it was installed. In the latter case, you"
+ echo "*** may want to edit the glib-config script: $GLIB_CONFIG" ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ GLIB_CFLAGS=""
+ GLIB_LIBS=""
+ ifelse([$3], , :, [$3])
+ fi
+ AC_SUBST(GLIB_CFLAGS)
+ AC_SUBST(GLIB_LIBS)
+ rm -f conf.glibtest
+])
--- /dev/null
+dnl Perform a check for a feature for GStreamer
+dnl Richard Boulton <richard-alsa@tartarus.org>
+dnl Thomas Vander Stichele <thomas@apestaart.org> added useful stuff
+dnl Last modification: 25/06/2001
+dnl GST_CHECK_FEATURE(FEATURE-NAME, FEATURE-DESCRIPTION,
+dnl DEPENDENT-PLUGINS, TEST-FOR-FEATURE,
+dnl DISABLE-BY-DEFAULT, ACTION-IF-USE, ACTION-IF-NOTUSE)
+dnl
+dnl This macro adds a command line argument to enable the user to enable
+dnl or disable a feature, and if the feature is enabled, performs a supplied
+dnl test to check if the feature is available.
+dnl
+dnl The test should define HAVE_<FEATURE-NAME> to "yes" or "no" depending
+dnl on whether the feature is available.
+dnl
+dnl The macro will set USE_<FEATURE-NAME> to "yes" or "no" depending on
+dnl whether the feature is to be used.
+dnl Thomas changed this, so that when USE_<FEATURE-NAME> was already set
+dnl to no, then it stays that way.
+dnl
+dnl The macro will call AM_CONDITIONAL(USE_<<FEATURE-NAME>, ...) to allow
+dnl the feature to control what is built in Makefile.ams. If you want
+dnl additional actions resulting from the test, you can add them with the
+dnl ACTION-IF-USE and ACTION-IF-NOTUSE parameters.
+dnl
+dnl FEATURE-NAME is the name of the feature, and should be in
+dnl purely upper case characters.
+dnl FEATURE-DESCRIPTION is used to describe the feature in help text for
+dnl the command line argument.
+dnl DEPENDENT-PLUGINS lists any plugins which depend on this feature.
+dnl TEST-FOR-FEATURE is a test which sets HAVE_<FEATURE-NAME> to "yes"
+dnl or "no" depending on whether the feature is
+dnl available.
+dnl DISABLE-BY-DEFAULT if "disabled", the feature is disabled by default,
+dnl if any other value, the feature is enabled by default.
+dnl ACTION-IF-USE any extra actions to perform if the feature is to be
+dnl used.
+dnl ACTION-IF-NOTUSE any extra actions to perform if the feature is not to
+dnl be used.
+dnl
+dnl
+dnl thomas :
+dnl we also added a history.
+dnl GST_PLUGINS_YES will contain all plugins to be built
+dnl that were checked through GST_CHECK_FEATURE
+dnl GST_PLUGINS_NO will contain those that won't be built
+
+AC_DEFUN(GST_CHECK_FEATURE,
+[dnl
+builtin(define, [gst_endisable], ifelse($5, [disabled], [enable], [disable]))dnl
+dnl if it is set to NO, then don't even consider it for building
+NOUSE=
+if test "x$USE_[$1]" = "xno"; then
+ NOUSE="yes"
+fi
+AC_ARG_ENABLE(translit([$1], A-Z, a-z),
+ [ ]builtin(format, --%-26s gst_endisable %s, gst_endisable-translit([$1], A-Z, a-z), [$2]ifelse([$3],,,: [$3])),
+ [ case "${enableval}" in
+ yes) USE_[$1]=yes;;
+ no) USE_[$1]=no;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-translit([$1], A-Z, a-z)) ;;
+ esac],
+ [ USE_$1=]ifelse($5, [disabled], [no], [yes])) dnl DEFAULT
+
+dnl *** set it back to no if it was preset to no
+if test "x$NOUSE" = "xyes"; then
+ USE_[$1]="no"
+ AC_MSG_WARN(*** $3 pre-configured not to be built)
+fi
+NOUSE=
+
+dnl *** If it's enabled
+
+if test x$USE_[$1] = xyes; then
+ gst_check_save_LIBS=$LIBS
+ gst_check_save_LDFLAGS=$LDFLAGS
+ gst_check_save_CFLAGS=$CFLAGS
+ gst_check_save_CPPFLAGS=$CPPFLAGS
+ gst_check_save_CXXFLAGS=$CXXFLAGS
+ HAVE_[$1]=no
+ $4
+ LIBS=$gst_check_save_LIBS
+ LDFLAGS=$gst_check_save_LDFLAGS
+ CFLAGS=$gst_check_save_CFLAGS
+ CPPFLAGS=$gst_check_save_CPPFLAGS
+ CXXFLAGS=$gst_check_save_CXXFLAGS
+
+ dnl If it isn't found, unset USE_[$1]
+ if test x$HAVE_[$1] = xno; then
+ USE_[$1]=no
+ fi
+fi
+dnl *** Warn if it's disabled or not found
+if test x$USE_[$1] = xyes; then
+ ifelse([$6], , :, [$6])
+ GST_PLUGINS_YES="$GST_PLUGINS_YES \n\t[$3]"
+else
+ ifelse([$3], , :, [AC_MSG_NOTICE(
+These plugins will not be built: [$3]
+)])
+ GST_PLUGINS_NO="$GST_PLUGINS_NO \n\t[$3]"
+ ifelse([$7], , :, [$7])
+fi
+dnl *** Define the conditional as appropriate
+AM_CONDITIONAL(USE_[$1], test x$USE_[$1] = xyes)
+])
+
+dnl Use a -config program which accepts --cflags and --libs parameters
+dnl to set *_CFLAGS and *_LIBS and check existence of a feature.
+dnl Richard Boulton <richard-alsa@tartarus.org>
+dnl Last modification: 26/06/2001
+dnl GST_CHECK_CONFIGPROG(FEATURE-NAME, CONFIG-PROG-FILENAME, MODULES)
+dnl
+dnl This check was written for GStreamer: it should be renamed and checked
+dnl for portability if you decide to use it elsewhere.
+dnl
+AC_DEFUN(GST_CHECK_CONFIGPROG,
+[
+ AC_PATH_PROG([$1]_CONFIG, [$2], no)
+ if test x$[$1]_CONFIG = xno; then
+ [$1]_LIBS=
+ [$1]_CFLAGS=
+ HAVE_[$1]=no
+ else
+ [$1]_LIBS=`[$2] --libs [$3]`
+ [$1]_CFLAGS=`[$2] --cflags [$3]`
+ HAVE_[$1]=yes
+ fi
+ AC_SUBST([$1]_LIBS)
+ AC_SUBST([$1]_CFLAGS)
+])
+
+dnl Use AC_CHECK_LIB and AC_CHECK_HEADER to do both tests at once
+dnl sets HAVE_module if we have it
+dnl Richard Boulton <richard-alsa@tartarus.org>
+dnl Last modification: 26/06/2001
+dnl GST_CHECK_LIBHEADER(FEATURE-NAME, LIB NAME, LIB FUNCTION, EXTRA LD FLAGS,
+dnl HEADER NAME, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
+dnl
+dnl This check was written for GStreamer: it should be renamed and checked
+dnl for portability if you decide to use it elsewhere.
+dnl
+AC_DEFUN(GST_CHECK_LIBHEADER,
+[
+ AC_CHECK_LIB([$2], [$3], HAVE_[$1]=yes, HAVE_[$1]=no,[$4])
+ if test "x$HAVE_[$1]" = "xyes"; then
+ AC_CHECK_HEADER([$5], :, HAVE_[$1]=no)
+ if test "x$HAVE_[$1]" = "xyes"; then
+ dnl execute what needs to be
+ ifelse([$6], , :, [$6])
+ else
+ ifelse([$7], , :, [$7])
+ fi
+ else
+ AC_MSG_WARN([$1] not found)
+ fi
+ AC_SUBST(HAVE_[$1])
+]
+)
+
+dnl
+dnl Add a subsystem --disable flag and all the necessary symbols and substitions
+dnl
+dnl GST_SUBSYSTEM_DISABLE(SYSNAME, [subsystem name])
+dnl
+AC_DEFUN(GST_SUBSYSTEM_DISABLE,
+[AC_ARG_ENABLE(translit([$1], A-Z, a-z),
+[ ]builtin(format, --disable-%-17s disable %s, translit([$1], A-Z, a-z), $2),
+[ case "${enableval}" in
+ yes) GST_DISABLE_[$1]=no ;;
+ no) GST_DISABLE_[$1]=yes ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-translit([$1], A-Z, a-z)) ;;
+ esac],
+[GST_DISABLE_[$1]=no]) dnl Default value
+if test x$GST_DISABLE_[$1] = xyes; then
+ AC_DEFINE(GST_DISABLE_[$1], 1, [Disable $2])
+ GST_DISABLE_[$1]_DEFINE=-DGST_DISABLE_[$1]
+fi
+AM_CONDITIONAL(GST_DISABLE_[$1], test x$GST_DISABLE_[$1] = xyes)
+AC_SUBST(GST_DISABLE_[$1]_DEFINE)
+GST_SUBSYSTEM_DISABLE_DEFINES="$GST_SUBSYTEM_DISABLE_DEFINES $GST_DISABLE_[$1]_DEFINE"
+])
--- /dev/null
+dnl Check for LinuxThreads
+dnl COTHREADS_CHECK_LINUXTHREADS
+dnl no arguments
+AC_DEFUN([COTHREADS_CHECK_LINUXTHREADS], [
+ AC_CACHE_CHECK([for LinuxThreads],
+ [cothreads_cv_linuxthreads],
+ [AC_EGREP_CPP(pthread_kill_other_threads_np,
+ [#include <pthread.h>],
+ [cothreads_cv_linuxthreads=yes],
+ [cothreads_cv_linuxthreads=no])
+ ])
+ if test $cothreads_cv_linuxthreads = yes; then
+ AC_DEFINE(HAVE_LINUXTHREADS,1,[if you have LinuxThreads])
+ fi
+])
--- /dev/null
+
+dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
+dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
+dnl also defines GSTUFF_PKG_ERRORS on error
+AC_DEFUN(PKG_CHECK_MODULES, [
+ succeeded=no
+
+ if test -z "$PKG_CONFIG"; then
+ AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+ fi
+
+ if test "$PKG_CONFIG" = "no" ; then
+ echo "*** The pkg-config script could not be found. Make sure it is"
+ echo "*** in your path, or set the PKG_CONFIG environment variable"
+ echo "*** to the full path to pkg-config."
+ echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
+ else
+ if ! $PKG_CONFIG --atleast-pkgconfig-version 0.7.0; then
+ echo "*** Your version of pkg-config is too old. You need version 0.7.0 or newer."
+ echo "*** See http://www.freedesktop.org/software/pkgconfig"
+ else
+ AC_MSG_CHECKING(for $2)
+
+ if $PKG_CONFIG --exists "$2" ; then
+ AC_MSG_RESULT(yes)
+ succeeded=yes
+
+ AC_MSG_CHECKING($1_CFLAGS)
+ $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
+ AC_MSG_RESULT($$1_CFLAGS)
+
+ AC_MSG_CHECKING($1_LIBS)
+ $1_LIBS=`$PKG_CONFIG --libs "$2"`
+ AC_MSG_RESULT($$1_LIBS)
+ else
+ $1_CFLAGS=""
+ $1_LIBS=""
+ ## If we have a custom action on failure, don't print errors, but
+ ## do set a variable so people can do so.
+ $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
+ ifelse([$4], ,echo $$1_PKG_ERRORS,)
+ fi
+
+ AC_SUBST($1_CFLAGS)
+ AC_SUBST($1_LIBS)
+ fi
+ fi
+
+ if test $succeeded = yes; then
+ ifelse([$3], , :, [$3])
+ else
+ ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
+ fi
+])
+
+
--- /dev/null
+dnl ##
+dnl ## NGPT - Next Generation POSIX Threading
+dnl ## Copyright (c) 2001 IBM Corporation <babt@us.ibm.com>
+dnl ## Copyright (c) 1999-2000 Ralf S. Engelschall <rse@engelschall.com>
+dnl ##
+dnl ## This file is part of NGPT, a non-preemptive thread scheduling
+dnl ## library which can be found at http://www.ibm.com/developer
+dnl ##
+dnl ## This library is free software; you can redistribute it and/or
+dnl ## modify it under the terms of the GNU Lesser General Public
+dnl ## License as published by the Free Software Foundation; either
+dnl ## version 2.1 of the License, or (at your option) any later version.
+dnl ##
+dnl ## This library is distributed in the hope that it will be useful,
+dnl ## but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl ## Lesser General Public License for more details.
+dnl ##
+dnl ## You should have received a copy of the GNU Lesser General Public
+dnl ## License along with this library; if not, write to the Free Software
+dnl ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+dnl ## USA, or contact Bill Abt <babt@us.ibm.com>
+dnl ##
+dnl ## aclocal.m4: Pth Autoconf macros
+dnl ##
+ dnl # ``"Reuse an expert's code" is the right
+ dnl # advice for most people. But it's a useless
+ dnl # advice for the experts writing the code
+ dnl # in the first place.'
+ dnl # -- Dan J. Bernstein
+
+dnl ##
+dnl ## Display Configuration Headers
+dnl ##
+dnl ## configure.in:
+dnl ## AC_MSG_PART(<text>)
+dnl ##
+
+define(AC_MSG_PART,[dnl
+if test ".$enable_subdir" != .yes; then
+ AC_MSG_RESULT()
+ AC_MSG_RESULT(${TB}$1:${TN})
+fi
+])dnl
+
+dnl ##
+dnl ## Display a message under --verbose
+dnl ##
+dnl ## configure.in:
+dnl ## AC_MSG_VERBOSE(<text>)
+dnl ##
+
+define(AC_MSG_VERBOSE,[dnl
+if test ".$verbose" = .yes; then
+ AC_MSG_RESULT([ $1])
+fi
+])
+
+dnl ##
+dnl ## Do not display message for a command
+dnl ##
+dnl ## configure.in:
+dnl ## AC_MSG_SILENT(...)
+dnl ##
+
+define(AC_FD_TMP, 9)
+define(AC_MSG_SILENT,[dnl
+exec AC_FD_TMP>&AC_FD_MSG AC_FD_MSG>/dev/null
+$1
+exec AC_FD_MSG>&AC_FD_TMP AC_FD_TMP>&-
+])
+
+dnl ##
+dnl ## Perform something only once
+dnl ##
+dnl ## configure.in:
+dnl ## AC_ONCE(<action>)
+dnl ##
+
+define(AC_ONCE,[
+ifelse(ac_once_$1, already_done, ,[
+ define(ac_once_$1, already_done)
+ $2
+])dnl
+])
+
+dnl ##
+dnl ## Support for $(S)
+dnl ##
+dnl ## configure.in:
+dnl ## AC_SRCDIR_PREFIX(<varname>)
+dnl ##
+
+AC_DEFUN(AC_SRCDIR_PREFIX,[
+ac_prog=[$]0
+changequote(, )dnl
+ac_srcdir=`echo $ac_prog | sed -e 's%/[^/][^/]*$%%' -e 's%\([^/]\)/*$%\1%'`
+changequote([, ])dnl
+if test ".$ac_srcdir" = ".$ac_prog"; then
+ ac_srcdir=""
+elif test "x$ac_srcdir" = "x."; then
+ ac_srcdir=""
+else
+ if test ".$CFLAGS" = .; then
+ CFLAGS="-I$ac_srcdir"
+ else
+ CFLAGS="$CFLAGS -I$ac_srcdir"
+ fi
+ ac_srcdir="$ac_srcdir/"
+fi
+$1="$ac_srcdir"
+AC_SUBST($1)
+])dnl
+
+dnl ##
+dnl ## Support for --enable-subdir (for use with pth.m4)
+dnl ##
+dnl ## configure.in:
+dnl ## AC_ENABLESUBDIR
+dnl ##
+
+AC_DEFUN(AC_ENABLESUBDIR,[
+AC_ARG_ENABLE(subdir,dnl
+[ --enable-subdir enable local building as subdirectory (default=no)],[dnl
+],[dnl
+enable_subdir=no
+])dnl
+if test ".$enable_subdir" = .yes; then
+ enable_batch=yes
+ enable_shared=no
+fi
+])dnl
+
+dnl ##
+dnl ## Support for Configuration Headers
+dnl ##
+dnl ## configure.in:
+dnl ## AC_HEADLINE(<short-name>, <long-name>,
+dnl ## <vers-var>, <vers-file>,
+dnl ## <copyright>)
+dnl ##
+
+AC_DEFUN(AC_HEADLINE,[dnl
+AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
+# configuration header
+if test ".`echo dummy [$]@ | grep enable-subdir`" != .; then
+ enable_subdir=yes
+fi
+if test ".`echo dummy [$]@ | grep help`" = .; then
+ # bootstrapping shtool
+ ac_prog=[$]0
+changequote(, )dnl
+ ac_srcdir=`echo $ac_prog | sed -e 's%/[^/][^/]*$%%' -e 's%\([^/]\)/*$%\1%'`
+changequote([, ])dnl
+ test ".$ac_srcdir" = ".$ac_prog" && ac_srcdir=.
+ ac_shtool="${CONFIG_SHELL-/bin/sh} $ac_srcdir/shtool"
+
+ # find out terminal sequences
+ if test ".$enable_subdir" != .yes; then
+ TB=`$ac_shtool echo -n -e %B 2>/dev/null`
+ TN=`$ac_shtool echo -n -e %b 2>/dev/null`
+ else
+ TB=''
+ TN=''
+ fi
+
+ # find out package version
+ $3_STR="`$ac_shtool version -lc -dlong $ac_srcdir/$4`"
+ AC_SUBST($3_STR)
+
+ # friendly header ;)
+ if test ".$enable_subdir" != .yes; then
+ echo "Configuring ${TB}$1${TN} ($2), Version ${TB}${$3_STR}${TN}"
+ echo "$5"
+ fi
+
+ # additionally find out hex version
+ $3_HEX="`$ac_shtool version -lc -dhex $ac_srcdir/$4`"
+ AC_SUBST($3_HEX)
+fi
+AC_DIVERT_POP()
+])dnl
+
+dnl ##
+dnl ## Support for Platform IDs
+dnl ##
+dnl ## configure.in:
+dnl ## AC_PLATFORM(<variable>)
+dnl ##
+
+AC_DEFUN(AC_PLATFORM,[
+if test ".$host" != .NONE; then
+ $1="$host"
+elif test ".$nonopt" != .NONE; then
+ $1="$nonopt"
+else
+ $1=`${CONFIG_SHELL-/bin/sh} $srcdir/config.guess`
+fi
+$1=`${CONFIG_SHELL-/bin/sh} $srcdir/config.sub $$1` || exit 1
+AC_SUBST($1)
+if test ".$enable_subdir" != .yes; then
+ echo "Platform: ${TB}${$1}${TN}"
+fi
+])dnl
+
+dnl ##
+dnl ## Support for config.param files
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CONFIG_PARAM(<file>)
+dnl ##
+
+AC_DEFUN(AC_CONFIG_PARAM,[
+AC_DIVERT_PUSH(-1)
+AC_ARG_WITH(param,[ --with-param=ID[,ID,..] load parameters from $1])
+AC_DIVERT_POP()
+AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)
+ac_prev=""
+ac_param=""
+if test -f $1; then
+ ac_param="$1:common"
+fi
+for ac_option
+do
+ if test ".$ac_prev" != .; then
+ eval "$ac_prev=\$ac_option"
+ ac_prev=""
+ continue
+ fi
+ case "$ac_option" in
+ -*=*) ac_optarg=`echo "$ac_option" | sed 's/[[-_a-zA-Z0-9]]*=//'` ;;
+ *) ac_optarg="" ;;
+ esac
+ case "$ac_option" in
+ --with-param=* )
+ case $ac_optarg in
+ *:* )
+ ac_from=`echo $ac_optarg | sed -e 's/:.*//'`
+ ac_what=`echo $ac_optarg | sed -e 's/.*://'`
+ ;;
+ * )
+ ac_from="$1"
+ ac_what="$ac_optarg"
+ ;;
+ esac
+ if test ".$ac_param" = .; then
+ ac_param="$ac_from:$ac_what"
+ else
+ ac_param="$ac_param,$ac_from:$ac_what"
+ fi
+ ;;
+ esac
+done
+if test ".$ac_param" != .; then
+ # echo "loading parameters"
+ OIFS="$IFS"
+ IFS=","
+ pconf="/tmp/autoconf.$$"
+ echo "ac_options=''" >$pconf
+ ac_from="$1"
+ for ac_section in $ac_param; do
+ changequote(, )
+ case $ac_section in
+ *:* )
+ ac_from=`echo "$ac_section" | sed -e 's/:.*//'`
+ ac_section=`echo "$ac_section" | sed -e 's/.*://'`
+ ;;
+ esac
+ (echo ''; cat $ac_from; echo '') |\
+ sed -e "1,/[ ]*[ ]*${ac_section}[ ]*{[ ]*/d" \
+ -e '/[ ]*}[ ]*/,$d' \
+ -e ':join' -e '/\\[ ]*$/N' -e 's/\\[ ]*\n[ ]*//' -e 'tjoin' \
+ -e 's/^[ ]*//g' \
+ -e 's/^\([^-].*=.*\) IF \(.*\)$/if \2; then \1; fi/' \
+ -e 's/^\(--.*=.*\) IF \(.*\)$/if \2; then ac_options="$ac_options \1"; fi/' \
+ -e 's/^\(--.*\) IF \(.*\)$/if \2; then ac_options="$ac_options \1"; fi/' \
+ -e 's/^\(--.*=.*\)$/ac_options="$ac_options \1"/' \
+ -e 's/^\(--.*\)$/ac_options="$ac_options \1"/' \
+ >>$pconf
+ changequote([, ])
+ done
+ IFS="$OIFS"
+ . $pconf
+ rm -f $pconf >/dev/null 2>&1
+ if test ".[$]*" = .; then
+ set -- $ac_options
+ else
+ set -- "[$]@" $ac_options
+ fi
+fi
+AC_DIVERT_POP()
+])dnl
+
+dnl ##
+dnl ## Check whether compiler option works
+dnl ##
+dnl ## configure.in:
+dnl ## AC_COMPILER_OPTION(<name>, <display>, <option>,
+dnl ## <action-success>, <action-failure>)
+dnl ##
+
+AC_DEFUN(AC_COMPILER_OPTION,[dnl
+AC_MSG_CHECKING(for compiler option $2)
+AC_CACHE_VAL(ac_cv_compiler_option_$1,[
+cat >conftest.$ac_ext <<EOF
+int main() { return 0; }
+EOF
+${CC-cc} -c $CFLAGS $CPPFLAGS $3 conftest.$ac_ext 1>conftest.out 2>conftest.err
+if test $? -ne 0 -o -s conftest.err; then
+ ac_cv_compiler_option_$1=no
+else
+ ac_cv_compiler_option_$1=yes
+fi
+rm -f conftest.$ac_ext conftest.out conftest.err
+])dnl
+if test ".$ac_cv_compiler_option_$1" = .yes; then
+ ifelse([$4], , :, [$4])
+else
+ ifelse([$5], , :, [$5])
+fi
+AC_MSG_RESULT([$ac_cv_compiler_option_$1])
+])dnl
+
+dnl ##
+dnl ## Check whether `long long' and `long double' type exists
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_LONGLONG
+dnl ## AC_CHECK_LONGDOUBLE
+dnl ##
+
+AC_DEFUN(AC_CHECK_LONGLONG,[dnl
+AC_MSG_CHECKING(for built-in type long long)
+ AC_CACHE_VAL(ac_cv_type_longlong,[
+ AC_TRY_LINK([
+#include <sys/types.h>
+ ],[
+ long long X = 2, Y = 1, Z;
+ Z = X / Y;
+ ],
+ AC_DEFINE(HAVE_LONGLONG)
+ ac_cv_type_longlong=yes,
+ ac_cv_type_longlong=no
+ )dnl
+ ])dnl
+AC_MSG_RESULT([$ac_cv_type_longlong])
+])dnl
+
+AC_DEFUN(AC_CHECK_LONGDOUBLE,[dnl
+AC_MSG_CHECKING(for built-in type long double)
+ AC_CACHE_VAL(ac_cv_type_longdouble,[
+ AC_TRY_LINK([
+#include <sys/types.h>
+ ],[
+ long double X = 2, Y = 1, Z;
+ Z = X / Y;
+ ],
+ AC_DEFINE(HAVE_LONGDOUBLE)
+ ac_cv_type_longdouble=yes,
+ ac_cv_type_longdouble=no
+ )dnl
+ ])dnl
+AC_MSG_RESULT([$ac_cv_type_longdouble])
+])dnl
+
+dnl ##
+dnl ## Minimalistic Libtool Glue Code
+dnl ##
+dnl ## configure.in:
+dnl ## AC_PROG_LIBTOOL(<platform-variable>)
+dnl ##
+
+AC_DEFUN(AC_PROG_LIBTOOL,[dnl
+AC_ARG_ENABLE(static,dnl
+[ --enable-static build static libraries (default=yes)],
+enable_static="$enableval",
+if test ".$enable_static" = .; then
+ enable_static=yes
+fi
+)dnl
+AC_ARG_ENABLE(shared,dnl
+[ --enable-shared build shared libraries (default=yes)],
+enable_shared="$enableval",
+if test ".$enable_shared" = .; then
+ enable_shared=yes
+fi
+)dnl
+libtool_flags=''
+dnl libtool_flags="$libtool_flags --cache-file=$cache_file"
+test ".$silent" = .yes && libtool_flags="$libtool_flags --silent"
+test ".$enable_static" = .no && libtool_flags="$libtool_flags --disable-static"
+test ".$enable_shared" = .no && libtool_flags="$libtool_flags --disable-shared"
+test ".$ac_cv_prog_gcc" = .yes && libtool_flags="$libtool_flags --with-gcc"
+test ".$ac_cv_prog_gnu_ld" = .yes && libtool_flags="$libtool_flags --with-gnu-ld"
+CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" \
+${CONFIG_SHELL-/bin/sh} $srcdir/ltconfig --no-reexec \
+$libtool_flags --srcdir=$srcdir --no-verify $srcdir/ltmain.sh $1 ||\
+AC_MSG_ERROR([libtool configuration failed])
+dnl (AC_CACHE_LOAD) >/dev/null 2>&1
+])dnl
+
+dnl ##
+dnl ## Disable kernel patch warning
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_KERNEL_PATCH_WARNING
+dnl ##
+
+AC_DEFUN(AC_CHECK_KERNEL_PATCH_WARNING,[dnl
+AC_ARG_ENABLE(kernel-patch,dnl
+[ --disable-kernel-patch-warning disable kernel patch warning(default=no)],
+[dnl
+AC_DEFINE(PTH_NO_PATCH_WARNING)
+msg="disabled"
+],[
+msg="enabled"
+])dnl
+AC_MSG_CHECKING(for 2.4 kernel patch warning)
+AC_MSG_RESULT([$msg])
+])
+
+dnl ##
+dnl ## Verbose Debugging Support
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_VERBOSE_DEBUGGING
+dnl ##
+
+AC_DEFUN(AC_CHECK_VERBOSE_DEBUGGING,[dnl
+AC_ARG_ENABLE(verbose-debug,dnl
+[ --enable-verbose-debug build for verbose debugging (default=no)],
+[dnl
+if test ".$ac_cv_prog_gcc" = ".yes"; then
+ case "$CFLAGS" in
+ *-O* ) ;;
+ * ) CFLAGS="$CFLAGS -O2" ;;
+ esac
+ case "$CFLAGS" in
+ *-g* ) ;;
+ * ) CFLAGS="$CFLAGS -g" ;;
+ esac
+ case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+ esac
+ AC_COMPILER_OPTION(ggdb3, -ggdb3, -ggdb3, CFLAGS="$CFLAGS -ggdb3")
+ case $PLATFORM in
+ *-*-freebsd*|*-*-solaris* ) CFLAGS="$CFLAGS -pedantic" ;;
+ esac
+ CFLAGS="$CFLAGS -Wall"
+ WMORE="-Wshadow -Wpointer-arith -Wcast-align -Winline -Wno-unused-function"
+ WMORE="$WMORE -Wmissing-prototypes -Wmissing-declarations -Wnested-externs"
+ AC_COMPILER_OPTION(wmore, -W<xxx>, $WMORE, CFLAGS="$CFLAGS $WMORE")
+ AC_COMPILER_OPTION(wnolonglong, -Wno-long-long, -Wno-long-long, CFLAGS="$CFLAGS -Wno-long-long")
+else
+ case "$CFLAGS" in
+ *-g* ) ;;
+ * ) CFLAGS="$CFLAGS -g" ;;
+ esac
+fi
+msg="enabled"
+AC_DEFINE(PTH_DEBUG)
+],[
+if test ".$ac_cv_prog_gcc" = ".yes"; then
+case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+esac
+fi
+case "$CFLAGS" in
+ *-g* ) CFLAGS=`echo "$CFLAGS" |\
+ sed -e 's/ -g / /g' -e 's/ -g$//' -e 's/^-g //g' -e 's/^-g$//'` ;;
+esac
+case "$CXXFLAGS" in
+ *-g* ) CXXFLAGS=`echo "$CXXFLAGS" |\
+ sed -e 's/ -g / /g' -e 's/ -g$//' -e 's/^-g //g' -e 's/^-g$//'` ;;
+esac
+msg="disabled"
+])dnl
+AC_MSG_CHECKING(for compilation debug mode)
+AC_MSG_RESULT([$msg])
+ case $PLATFORM in
+ *-*-mvs* )
+ # Don't turn off shared libaries on OS/390.
+ ;;
+ * )
+ if test ".$msg" = .enabled; then
+ enable_shared=no
+ fi
+ ;;
+ esac
+])
+
+dnl ##
+dnl ## Standard Debugging Support
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_STD_DEBUGGING
+dnl ##
+
+AC_DEFUN(AC_CHECK_STD_DEBUGGING,[dnl
+AC_ARG_ENABLE(debug,dnl
+[ --enable-debug build for debugging (default=no)],
+[dnl
+if test ".$ac_cv_prog_gcc" = ".yes"; then
+ case "$CFLAGS" in
+ *-O* ) ;;
+ * ) CFLAGS="$CFLAGS -O2" ;;
+ esac
+ case "$CFLAGS" in
+ *-g* ) ;;
+ * ) CFLAGS="$CFLAGS -g" ;;
+ esac
+ case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+ esac
+ AC_COMPILER_OPTION(ggdb3, -ggdb3, -ggdb3, CFLAGS="$CFLAGS -ggdb3")
+ case $PLATFORM in
+ *-*-freebsd*|*-*-solaris* ) CFLAGS="$CFLAGS -pedantic" ;;
+ esac
+ CFLAGS="$CFLAGS -DASSERTS_ON -Wall"
+ WMORE="-Wshadow -Wpointer-arith -Wcast-align -Winline -Wno-unused-function"
+ WMORE="$WMORE -Wmissing-prototypes -Wmissing-declarations -Wnested-externs"
+ AC_COMPILER_OPTION(wmore, -W<xxx>, $WMORE, CFLAGS="$CFLAGS $WMORE")
+ AC_COMPILER_OPTION(wnolonglong, -Wno-long-long, -Wno-long-long, CFLAGS="$CFLAGS -Wno-long-long")
+else
+ case "$CFLAGS" in
+ *-g* ) ;;
+ * ) CFLAGS="$CFLAGS -g" ;;
+ esac
+fi
+msg="enabled"
+],[
+if test ".$ac_cv_prog_gcc" = ".yes"; then
+case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+esac
+fi
+case "$CFLAGS" in
+ *-g* ) CFLAGS=`echo "$CFLAGS" |\
+ sed -e 's/ -g / /g' -e 's/ -g$//' -e 's/^-g //g' -e 's/^-g$//'` ;;
+esac
+case "$CXXFLAGS" in
+ *-g* ) CXXFLAGS=`echo "$CXXFLAGS" |\
+ sed -e 's/ -g / /g' -e 's/ -g$//' -e 's/^-g //g' -e 's/^-g$//'` ;;
+esac
+msg="disabled"
+])dnl
+AC_MSG_CHECKING(for compilation debug mode)
+AC_MSG_RESULT([$msg])
+ case $PLATFORM in
+ * )
+ ;;
+ esac
+])
+
+dnl ##
+dnl ## Profiling Support
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_PROFILING
+dnl ##
+
+AC_DEFUN(AC_CHECK_PROFILING,[dnl
+AC_MSG_CHECKING(for compilation profile mode)
+AC_ARG_ENABLE(profile,dnl
+[ --enable-profile build for profiling (default=no)],
+[dnl
+if test ".$ac_cv_prog_gcc" = ".no"; then
+ AC_MSG_ERROR([profiling requires gcc and gprof])
+fi
+CFLAGS=`echo "$CFLAGS" | sed -e 's/-O2//g'`
+CFLAGS="$CFLAGS -O0 -pg"
+LDFLAGS="$LDFLAGS -pg"
+msg="enabled"
+],[
+msg="disabled"
+])dnl
+AC_MSG_RESULT([$msg])
+if test ".$msg" = .enabled; then
+ enable_shared=no
+fi
+])
+
+dnl ##
+dnl ## Build Parameters
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_BUILDPARAM
+dnl ##
+
+AC_DEFUN(AC_CHECK_BUILDPARAM,[dnl
+dnl # determine build mode
+AC_MSG_CHECKING(whether to activate batch build mode)
+AC_ARG_ENABLE(batch,dnl
+[ --enable-batch enable batch build mode (default=no)],[dnl
+],[dnl
+enable_batch=no
+])dnl
+if test ".$silent" = .yes; then
+ enable_batch=yes
+fi
+AC_MSG_RESULT([$enable_batch])
+BATCH="$enable_batch"
+AC_SUBST(BATCH)
+dnl # determine build targets
+TARGET_ALL='$(TARGET_PREQ) $(TARGET_LIBS)'
+AC_MSG_CHECKING(whether to activate maintainer build targets)
+AC_ARG_ENABLE(maintainer,dnl
+[ --enable-maintainer enable maintainer build targets (default=no)],[dnl
+],[dnl
+enable_maintainer=no
+])dnl
+AC_MSG_RESULT([$enable_maintainer])
+if test ".$enable_maintainer" = .yes; then
+ TARGET_ALL="$TARGET_ALL \$(TARGET_MANS)"
+fi
+AC_MSG_CHECKING(whether to activate test build targets)
+AC_ARG_ENABLE(tests,dnl
+[ --enable-tests enable test build targets (default=yes)],[dnl
+],[dnl
+enable_tests=yes
+])dnl
+AC_MSG_RESULT([$enable_tests])
+if test ".$enable_tests" = .yes; then
+ TARGET_ALL="$TARGET_ALL \$(TARGET_TEST)"
+fi
+AC_SUBST(TARGET_ALL)
+])
+
+dnl ##
+dnl ## Optimization Support
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_OPTIMIZE
+dnl ##
+
+AC_DEFUN(AC_CHECK_OPTIMIZE,[dnl
+AC_ARG_ENABLE(optimize,dnl
+[ --enable-optimize build with optimization (default=no)],
+[dnl
+if test ".$ac_cv_prog_gcc" = ".yes"; then
+ # compiler is gcc
+ case "$CFLAGS" in
+ *-O* ) ;;
+ * ) CFLAGS="$CFLAGS -O2" ;;
+ esac
+ case "$CFLAGS" in
+ *-pipe* ) ;;
+ * ) AC_COMPILER_OPTION(pipe, -pipe, -pipe, CFLAGS="$CFLAGS -pipe") ;;
+ esac
+ OPT_CFLAGS='-funroll-loops -fstrength-reduce -fomit-frame-pointer -ffast-math'
+ AC_COMPILER_OPTION(optimize_std, [-f<xxx> for optimizations], $OPT_CFLAGS, CFLAGS="$CFLAGS $OPT_CFLAGS")
+ case $PLATFORM in
+ i?86*-*-*|?86*-*-* )
+ OPT_CFLAGS='-malign-functions=4 -malign-jumps=4 -malign-loops=4'
+ AC_COMPILER_OPTION(optimize_x86, [-f<xxx> for Intel x86 CPU], $OPT_CFLAGS, CFLAGS="$CFLAGS $OPT_CFLAGS")
+ ;;
+ esac
+else
+ # compiler is NOT gcc
+ case "$CFLAGS" in
+ *-O* ) ;;
+ * ) CFLAGS="$CFLAGS -O" ;;
+ esac
+ case $PLATFORM in
+ *-*-solaris* )
+ AC_COMPILER_OPTION(fast, -fast, -fast, CFLAGS="$CFLAGS -fast")
+ ;;
+ esac
+fi
+msg="enabled"
+],[
+msg="disabled"
+])dnl
+AC_MSG_CHECKING(for compilation optimization mode)
+AC_MSG_RESULT([$msg])
+])
+
+dnl ##
+dnl ## Check for a pre-processor define in a header
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_DEFINE(<define>, <header>)
+dnl ## acconfig.h:
+dnl ## #undef HAVE_<define>
+dnl ##
+
+AC_DEFUN(AC_CHECK_DEFINE,[dnl
+AC_MSG_CHECKING(for define $1 in $2)
+AC_CACHE_VAL(ac_cv_define_$1,
+[AC_EGREP_CPP([YES_IS_DEFINED], [
+#include <$2>
+#ifdef $1
+YES_IS_DEFINED
+#endif
+], ac_cv_define_$1=yes, ac_cv_define_$1=no)])dnl
+AC_MSG_RESULT($ac_cv_define_$1)
+if test $ac_cv_define_$1 = yes; then
+ AC_DEFINE(HAVE_[]translit($1, [a-z], [A-Z]))
+fi
+])
+
+dnl ##
+dnl ## Check for an ANSI C typedef in a header
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_TYPEDEF(<typedef>, <header>)
+dnl ## acconfig.h:
+dnl ## #undef HAVE_<typedef>
+dnl ##
+
+AC_DEFUN(AC_CHECK_TYPEDEF,[dnl
+AC_REQUIRE([AC_HEADER_STDC])dnl
+AC_MSG_CHECKING(for typedef $1)
+AC_CACHE_VAL(ac_cv_typedef_$1,
+[AC_EGREP_CPP(dnl
+changequote(<<,>>)dnl
+<<(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]>>dnl
+changequote([,]), [
+#include <$2>
+], ac_cv_typedef_$1=yes, ac_cv_typedef_$1=no)])dnl
+AC_MSG_RESULT($ac_cv_typedef_$1)
+if test $ac_cv_typedef_$1 = yes; then
+ AC_DEFINE(HAVE_[]translit($1, [a-z], [A-Z]))
+fi
+])
+
+dnl ##
+dnl ## Check for an ANSI C struct attribute in a structure defined in a header
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_STRUCTATTR(<attr>, <struct>, <header>)
+dnl ## acconfig.h:
+dnl ## #undef HAVE_<attr>
+dnl ##
+
+AC_DEFUN(AC_CHECK_STRUCTATTR,[dnl
+AC_REQUIRE([AC_HEADER_STDC])dnl
+AC_MSG_CHECKING(for attribute $1 in struct $2 from $3)
+AC_CACHE_VAL(ac_cv_structattr_$1,[dnl
+
+AC_TRY_LINK([
+#include <sys/types.h>
+#include <$3>
+],[
+struct $2 *sp1;
+struct $2 *sp2;
+sp1->$1 = sp2->$1;
+], ac_cv_structattr_$1=yes, ac_cv_structattr_$1=no)])dnl
+AC_MSG_RESULT($ac_cv_structattr_$1)
+if test $ac_cv_structattr_$1 = yes; then
+ AC_DEFINE(HAVE_[]translit($1, [a-z], [A-Z]))
+fi
+])
+
+dnl ##
+dnl ## Check for argument type of a function
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_ARGTYPE(<header> [...], <func>, <arg-number>,
+dnl ## <max-arg-number>, <action-with-${ac_type}>)
+dnl ##
+
+AC_DEFUN(AC_CHECK_ARGTYPE,[dnl
+AC_REQUIRE_CPP()dnl
+AC_MSG_CHECKING([for type of argument $3 for $2()])
+AC_CACHE_VAL([ac_cv_argtype_$2$3],[
+cat >conftest.$ac_ext <<EOF
+[#]line __oline__ "configure"
+#include "confdefs.h"
+EOF
+for ifile in $1; do
+ echo "#include <$ifile>" >>conftest.$ac_ext
+done
+gpat=''
+spat=''
+i=1
+changequote(, )dnl
+while test $i -le $4; do
+ gpat="$gpat[^,]*"
+ if test $i -eq $3; then
+ spat="$spat\\([^,]*\\)"
+ else
+ spat="$spat[^,]*"
+ fi
+ if test $i -lt $4; then
+ gpat="$gpat,"
+ spat="$spat,"
+ fi
+ i=`expr $i + 1`
+done
+(eval "$ac_cpp conftest.$ac_ext") 2>&AC_FD_CC |\
+sed -e ':join' \
+ -e '/,[ ]*$/N' \
+ -e 's/,[ ]*\n[ ]*/, /' \
+ -e 'tjoin' |\
+egrep "[^a-zA-Z0-9_]$2[ ]*\\($gpat\\)" | head -1 |\
+sed -e "s/.*[^a-zA-Z0-9_]$2[ ]*($spat).*/\\1/" \
+ -e 's/(\*[a-zA-Z_][a-zA-Z_0-9]*)/(*)/' \
+ -e 's/^[ ]*//' -e 's/[ ]*$//' \
+ -e 's/^/arg:/' \
+ -e 's/^arg:\([^ ]*\)$/type:\1/' \
+ -e 's/^arg:\(.*_t\)*$/type:\1/' \
+ -e 's/^arg:\(.*\*\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]\*\)[_a-zA-Z][_a-zA-Z0-9]*$/type:\1/' \
+ -e 's/^arg:\(.*[ ]char\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]short\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]int\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]long\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]float\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]double\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]unsigned\)$/type:\1/' \
+ -e 's/^arg:\(.*[ ]signed\)$/type:\1/' \
+ -e 's/^arg:\(.*struct[ ][_a-zA-Z][_a-zA-Z0-9]*\)$/type:\1/' \
+ -e 's/^arg:\(.*\)[ ]_[_a-zA-Z0-9]*$/type:\1/' \
+ -e 's/^arg:\(.*\)[ ]\([^ ]*\)$/type:\1/' \
+ -e 's/^type://' >conftest.output
+ac_cv_argtype_$2$3=`cat conftest.output`
+changequote([, ])dnl
+rm -f conftest*
+])
+AC_MSG_RESULT([$ac_cv_argtype_$2$3])
+ac_type="$ac_cv_argtype_$2$3"
+[$5]
+])
+
+dnl ##
+dnl ## Check for existance of a function
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_FUNCTION(<function> [, <action-if-found> [, <action-if-not-found>]])
+dnl ## AC_CHECK_FUNCTIONS(<function> [...] [, <action-if-found> [, <action-if-not-found>]])
+dnl ##
+
+AC_DEFUN(AC_CHECK_FUNCTIONS,[dnl
+for ac_func in $1; do
+ AC_CHECK_FUNCTION($ac_func,
+ [changequote(, )dnl
+ ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+ changequote([, ])dnl
+ AC_DEFINE_UNQUOTED($ac_tr_func) $2], $3)dnl
+done
+])
+
+AC_DEFUN(AC_CHECK_FUNCTION, [dnl
+AC_MSG_CHECKING([for function $1])
+AC_CACHE_VAL(ac_cv_func_$1, [dnl
+AC_TRY_LINK([
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $1(); below. */
+#include <assert.h>
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $1();
+char (*f)();
+], [
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$1) || defined (__stub___$1)
+choke me
+#else
+f = $1;
+#endif
+], eval "ac_cv_func_$1=yes", eval "ac_cv_func_$1=no")])
+if eval "test \"`echo '$ac_cv_func_'$1`\" = yes"; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+else
+ AC_MSG_RESULT(no)
+ifelse([$3], , , [$3
+])dnl
+fi
+])
+
+dnl ##
+dnl ## Decision Hierachy
+dnl ##
+
+define(AC_IFALLYES,[dnl
+ac_rc=yes
+for ac_spec in $1; do
+ ac_type=`echo "$ac_spec" | sed -e 's/:.*$//'`
+ ac_item=`echo "$ac_spec" | sed -e 's/^.*://'`
+ case $ac_type in
+ header [)]
+ ac_item=`echo "$ac_item" | sed 'y%./+-%__p_%'`
+ ac_var="ac_cv_header_$ac_item"
+ ;;
+ file [)]
+ ac_item=`echo "$ac_item" | sed 'y%./+-%__p_%'`
+ ac_var="ac_cv_file_$ac_item"
+ ;;
+ func [)] ac_var="ac_cv_func_$ac_item" ;;
+ lib [)] ac_var="ac_cv_lib_$ac_item" ;;
+ define [)] ac_var="ac_cv_define_$ac_item" ;;
+ typedef [)] ac_var="ac_cv_typedef_$ac_item" ;;
+ custom [)] ac_var="$ac_item" ;;
+ esac
+ eval "ac_val=\$$ac_var"
+ if test ".$ac_val" != .yes; then
+ ac_rc=no
+ break
+ fi
+done
+if test ".$ac_rc" = .yes; then
+ :
+ $2
+else
+ :
+ $3
+fi
+])
+
+define(AC_BEGIN_DECISION,[dnl
+ac_decision_item='$1'
+ac_decision_msg='FAILED'
+ac_decision=''
+])
+
+define(AC_DECIDE,[dnl
+ac_decision='$1'
+ac_decision_msg='$2'
+ac_decision_$1=yes
+ac_decision_$1_msg='$2'
+])
+
+define(AC_DECISION_OVERRIDE,[dnl
+ ac_decision=''
+ for ac_item in $1; do
+ eval "ac_decision_this=\$ac_decision_${ac_item}"
+ if test ".$ac_decision_this" = .yes; then
+ ac_decision=$ac_item
+ eval "ac_decision_msg=\$ac_decision_${ac_item}_msg"
+ fi
+ done
+])
+
+define(AC_DECISION_FORCE,[dnl
+ac_decision="$1"
+eval "ac_decision_msg=\"\$ac_decision_${ac_decision}_msg\""
+])
+
+define(AC_END_DECISION,[dnl
+if test ".$ac_decision" = .; then
+ echo "[$]0:Error: decision on $ac_decision_item failed." 1>&2
+ echo "[$]0:Hint: see config.log for more details!" 1>&2
+ exit 1
+else
+ if test ".$ac_decision_msg" = .; then
+ ac_decision_msg="$ac_decision"
+ fi
+ AC_MSG_RESULT([decision on $ac_decision_item... ${TB}$ac_decision_msg${TN}])
+fi
+])
+
+dnl ##
+dnl ## Check for existance of a file
+dnl ##
+dnl ## configure.in:
+dnl ## AC_TEST_FILE(<file>, <success-action>, <failure-action>)
+dnl ##
+
+AC_DEFUN(AC_TEST_FILE, [
+ac_safe=`echo "$1" | sed 'y%./+-%__p_%'`
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(ac_cv_file_$ac_safe, [
+if test -r $1; then
+ eval "ac_cv_file_$ac_safe=yes"
+else
+ eval "ac_cv_file_$ac_safe=no"
+fi
+])dnl
+if eval "test \"`echo '$ac_cv_file_'$ac_safe`\" = yes"; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+else
+ AC_MSG_RESULT(no)
+ ifelse([$3], , :, [$3])
+fi
+])
+
+dnl ##
+dnl ## Check for socket/network size type
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_SOCKLENTYPE(<action-with-${ac_type}>)
+dnl ##
+
+dnl # Background:
+dnl # this exists because of shortsightedness on the POSIX committee.
+dnl # BSD systems used "int *" as the parameter to accept(2),
+dnl # getsockname(2), getpeername(2) et al. Consequently many Unix
+dnl # flavors took an "int *" for that parameter. The POSIX committee
+dnl # decided that "int" was just too generic and had to be replaced
+dnl # with "size_t" almost everywhere. There's no problem with that
+dnl # when you're passing by value. But when you're passing by
+dnl # reference (as it is the case for accept(2) and friends) this
+dnl # creates a gross source incompatibility with existing programs.
+dnl # On 32-bit architectures it creates only a warning. On 64-bit
+dnl # architectures it creates broken code -- because "int *" is a
+dnl # pointer to a 64-bit quantity and "size_t *" is usually a pointer
+dnl # to a 32-bit quantity. Some Unix flavors adopted "size_t *" for
+dnl # the sake of POSIX compliance. Others ignored it because it was
+dnl # such a broken interface. Chaos ensued. POSIX finally woke up
+dnl # and decided that it was wrong and created a new type socklen_t.
+dnl # The only useful value for socklen_t is "int", and that's how
+dnl # everyone who has a clue implements it. It is almost always the
+dnl # case that this type should be defined to be an "int", unless the
+dnl # system being compiled for was created in the window of POSIX
+dnl # madness.
+
+AC_DEFUN(AC_CHECK_SOCKLENTYPE,[dnl
+AC_CHECK_TYPEDEF(socklen_t, sys/socket.h)
+AC_CHECK_ARGTYPE(sys/types.h sys/socket.h, accept, 3, 3, [:])
+AC_MSG_CHECKING(for fallback socklen_t)
+AC_CACHE_VAL(ac_cv_check_socklentype, [
+if test ".$ac_cv_typedef_socklen_t" = .yes; then
+ ac_cv_check_socklentype='socklen_t'
+elif test ".$ac_type" != .; then
+ ac_cv_check_socklentype=`echo "$ac_type" | sed -e 's/[ ]*\*$//'`
+else
+ ac_cv_check_socklentype='int'
+fi
+])
+AC_MSG_RESULT([$ac_cv_check_socklentype])
+ac_type="$ac_cv_check_socklentype"
+ifelse([$1], , :, [$1])
+])
+
+dnl ##
+dnl ## Check for filedescriptor number type
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_NFDSTYPE(<action-with-${ac_type}>)
+dnl ##
+
+AC_DEFUN(AC_CHECK_NFDSTYPE,[dnl
+AC_CHECK_TYPEDEF(nfds_t, poll.h)
+AC_CHECK_ARGTYPE(sys/types.h poll.h, poll, 2, 3, [:])
+AC_MSG_CHECKING(for fallback nfds_t)
+AC_CACHE_VAL(ac_cv_check_nfdstype, [
+if test ".$ac_cv_typedef_nfds_t" = .yes; then
+ ac_cv_check_nfdstype='nfds_t'
+elif test ".$ac_type" != .; then
+ ac_cv_check_nfdstype=`echo "$ac_type" | sed -e 's/[ ]*\*$//'`
+else
+ ac_cv_check_nfdstype='unsigned int'
+fi
+])
+AC_MSG_RESULT([$ac_cv_check_nfdstype])
+ac_type="$ac_cv_check_nfdstype"
+ifelse([$1], , :, [$1])
+])
+
+dnl ##
+dnl ## Check for need of stackguard
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_NEED_FOR_SEPARATE_STACK(<define>)
+dnl ## acconfig.h:
+dnl ## #undef <define>
+dnl ## source.c:
+dnl ## #include "config.h"
+dnl ## #if <define> > 0
+dnl ## ...separate stack needed...
+dnl ## #else
+dnl ## ...separate stack not needed...
+dnl ## #endif
+dnl ##
+
+AC_DEFUN(AC_CHECK_NEED_FOR_SEPARATE_STACK,[dnl
+AC_MSG_CHECKING(for need for separate stack)
+AC_CACHE_VAL(ac_cv_need_for_separate_stack, [
+case $HOSTTYPE in
+ia64 )
+ ac_cv_need_for_separate_stack=yes
+ ;;
+* )
+ ac_cv_need_for_separate_stack=no
+ ;;
+esac
+])dnl
+AC_MSG_RESULT([$ac_cv_need_for_separate_stack])
+if test ".$ac_cv_need_for_separate_stack" = .yes; then
+ val="1"
+else
+ val="0"
+fi
+AC_DEFINE_UNQUOTED($1, $val)
+])
+
+dnl ##
+dnl ## Check for direction of stack growth
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_STACKGROWTH(<define>)
+dnl ## acconfig.h:
+dnl ## #undef <define>
+dnl ## source.c:
+dnl ## #include "config.h"
+dnl ## #if <define> < 0
+dnl ## ...stack grow down...
+dnl ## #else
+dnl ## ...stack grow up...
+dnl ## #endif
+dnl ##
+
+AC_DEFUN(AC_CHECK_STACKGROWTH,[dnl
+AC_MSG_CHECKING(for direction of stack growth)
+AC_CACHE_VAL(ac_cv_check_stackgrowth, [
+cross_compile=no
+AC_TRY_RUN(
+changequote(<<, >>)dnl
+<<
+#include <stdio.h>
+#include <stdlib.h>
+static int iterate = 10;
+static int growsdown(int *x)
+{
+ auto int y;
+ y = (x > &y);
+ if (--iterate > 0)
+ y = growsdown(&y);
+ if (y != (x > &y))
+ exit(1);
+ return y;
+}
+int main(int argc, char *argv[])
+{
+ FILE *f;
+ auto int x;
+ if ((f = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(f, "%s\n", growsdown(&x) ? "down" : "up");;
+ fclose(f);
+ exit(0);
+}
+>>
+changequote([, ])dnl
+,
+ac_cv_check_stackgrowth=`cat conftestval`,
+ac_cv_check_stackgrowth=down,
+ac_cv_check_stackgrowth=down
+)dnl
+])dnl
+AC_MSG_RESULT([$ac_cv_check_stackgrowth])
+if test ".$ac_cv_check_stackgrowth" = ".down"; then
+ val="-1"
+else
+ val="+1"
+fi
+AC_DEFINE_UNQUOTED($1, $val)
+])
+
+dnl ##
+dnl ## Check whether and how a POSIX compliant sigsetjmp(3) can be achieved
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_SJLJ(<success-action>, <failure-action>, <type-var>)
+dnl ##
+
+AC_DEFUN(AC_CHECK_SJLJ,[
+AC_MSG_CHECKING(for signal-mask aware setjmp(3)/longjmp(3))
+AC_CACHE_VAL(ac_cv_check_sjlj, [
+AC_IFALLYES(func:setjmp func:longjmp, ac_cv_check_sjlj=sjlje, ac_cv_check_sjlj=none)
+cross_compile=no
+for testtype in ssjlj sjlj usjlj; do
+OCFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -DTEST_${testtype}"
+AC_TRY_RUN(
+changequote(<<, >>)dnl
+<<
+#if defined(TEST_ssjlj)
+#define __JMP_BUF sigjmp_buf
+#define __SETJMP(buf) sigsetjmp(buf,1)
+#define __LONGJMP(buf,val) siglongjmp(buf,val)
+#elif defined(TEST_sjlj)
+#define __JMP_BUF jmp_buf
+#define __SETJMP(buf) setjmp(buf)
+#define __LONGJMP(buf,val) longjmp(buf,val)
+#elif defined(TEST_usjlj)
+#define __JMP_BUF jmp_buf
+#define __SETJMP(buf) _setjmp(buf)
+#define __LONGJMP(buf,val) _longjmp(buf,val)
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <unistd.h>
+
+static __JMP_BUF jb;
+
+static void sighandler(int sig)
+{
+ sigset_t sigs;
+
+ /* get signal mask */
+ sigprocmask(SIG_SETMASK, NULL, &sigs);
+
+ /* make sure USR1 is still blocked */
+ if (!sigismember(&sigs, SIGUSR1))
+ exit(1);
+
+ /* block USR2 for us */
+ sigaddset(&sigs, SIGUSR2);
+ sigprocmask(SIG_SETMASK, &sigs, NULL);
+
+ /* jump back to main */
+ __LONGJMP(jb, 1);
+ exit(1);
+}
+
+int main(int argc, char *argv[])
+{
+ FILE *fp;
+ sigset_t sigs;
+ struct sigaction sa;
+
+ /* the default is that it fails */
+ if ((fp = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(fp, "failed\n");
+ fclose(fp);
+
+ /* block USR1 and unblock USR2 signal */
+ sigprocmask(SIG_SETMASK, NULL, &sigs);
+ sigaddset(&sigs, SIGUSR1);
+ sigdelset(&sigs, SIGUSR2);
+ sigprocmask(SIG_SETMASK, &sigs, NULL);
+
+ /* set jump buffer */
+ if (__SETJMP(jb) == 0) {
+
+ /* install signal handler for USR1 */
+ memset((void *)&sa, 0, sizeof(struct sigaction));
+ sigemptyset(&sa.sa_mask);
+ sa.sa_handler = sighandler;
+ sa.sa_flags = 0;
+ sigaction(SIGUSR1, &sa, NULL);
+
+ /* send USR1 signal (which is still blocked) */
+ kill(getpid(), SIGUSR1);
+
+ /* unblock USR1 and wait for it */
+ sigprocmask(SIG_SETMASK, NULL, &sigs);
+ sigdelset(&sigs, SIGUSR1);
+ sigsuspend(&sigs);
+ exit(1);
+ }
+
+ /* get signal mask again */
+ sigprocmask(SIG_SETMASK, NULL, &sigs);
+
+ /* make sure USR2 is again unblocked */
+ if (sigismember(&sigs, SIGUSR2))
+ exit(1);
+
+ /* Fine... */
+ if ((fp = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(fp, "ok\n");
+ fclose(fp);
+ exit(0);
+}
+>>
+changequote([, ]),
+rc=`cat conftestval`,
+rc=failed,
+rc=failed
+)
+CFLAGS="$OCFLAGS"
+if test ".$rc" = .ok; then
+ ac_cv_check_sjlj=$testtype
+ break
+fi
+done
+case $PLATFORM in
+ *-*-linux* )
+ braindead=no
+ case "x`uname -r`" in
+changequote(, )dnl
+ x2.[23456789]* ) ;;
+changequote([, ])
+ * ) braindead=yes ;;
+ esac
+ case `grep __GLIBC_MINOR /usr/include/features.h | grep '#define' |\
+ awk '{ printf("%s", [$]3 >= 1 ? "yes" : "no"); }'` in
+ yes ) ;;
+ * ) braindead=yes ;;
+ esac
+ case $braindead in
+ yes ) ac_cv_check_sjlj=sjljlx ;;
+ no ) ac_cv_check_sjlj=ssjlj ;;
+ esac
+ ;;
+ *-*-isc* )
+ ac_cv_check_sjlj=sjljisc
+ ;;
+ *-*-interix )
+ # Interix is a POSIX sub-system on Windows-NT which
+ # can use the Interactive UNIX dispatching code.
+ ac_cv_check_sjlj=sjljisc
+ ;;
+ *-*-cygwin* )
+ ac_cv_check_sjlj=sjljw32
+ ;;
+esac
+])dnl
+$3="$ac_cv_check_sjlj"
+if test ".$ac_cv_check_sjlj" != .none; then
+ AC_MSG_RESULT([yes: $ac_cv_check_sjlj])
+ ifelse([$1], , :, [$1])
+else
+ AC_MSG_RESULT([no])
+ ifelse([$2], , :, [$2])
+fi
+])dnl
+
+dnl ##
+dnl ## Check for number of signals (NSIG)
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_NSIG(<define>)
+dnl ## acconfig.h:
+dnl ## #undef <define>
+dnl ## source.c:
+dnl ## #include "config.h"
+dnl ## ...<define>...
+
+AC_DEFUN(AC_CHECK_NSIG,[dnl
+AC_MSG_CHECKING(for number of signals)
+cross_compile=no
+AC_TRY_RUN(
+changequote(<<, >>)dnl
+<<
+#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+
+int main(int argc, char *argv[])
+{
+ FILE *fp;
+ int nsig;
+
+#if defined(NSIG)
+ nsig = NSIG;
+#elif defined(_NSIG)
+ nsig = _NSIG;
+#else
+ nsig = (sizeof(sigset_t)*8);
+ if (nsig < 32)
+ nsig = 32;
+#endif
+ if ((fp = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(fp, "%d\n", nsig);
+ fclose(fp);
+ exit(0);
+}
+>>
+changequote([, ])dnl
+,
+nsig=`cat conftestval`,
+nsig=32,
+nsig=32
+)dnl
+AC_MSG_RESULT([$nsig])
+AC_DEFINE_UNQUOTED($1, $nsig)
+])
+
+dnl ##
+dnl ## Check for an external/extension library.
+dnl ## - is aware of <libname>-config style scripts
+dnl ## - searches under standard paths include, lib, etc.
+dnl ## - searches under subareas like .libs, etc.
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_EXTLIB(<realname>, <libname>, <func>, <header>,
+dnl ## [<success-action> [, <fail-action>]])
+dnl ## Makefile.in:
+dnl ## CFLAGS = @CFLAGS@
+dnl ## LDFLAGS = @LDFLAGS@
+dnl ## LIBS = @LIBS@
+dnl ## shell:
+dnl ## $ ./configure --with-<libname>[=DIR]
+dnl ##
+
+AC_DEFUN(AC_CHECK_EXTLIB,[dnl
+AC_ARG_WITH($2,dnl
+[ --with-]substr([$2[[=DIR]] ], 0, 19)[build against $1 library (default=no)],
+ if test ".$with_$2" = .yes; then
+ # via config script
+ $2_version=`($2-config --version) 2>/dev/null`
+ if test ".$$2_version" != .; then
+ CPPFLAGS="$CPPFLAGS `$2-config --cflags`"
+ CFLAGS="$CFLAGS `$2-config --cflags`"
+ LDFLAGS="$LDFLAGS `$2-config --ldflags`"
+ fi
+ else
+ if test -d "$with_$2"; then
+ found=0
+ # via config script
+ for dir in $with_$2/bin $with_$2; do
+ if test -f "$dir/$2-config"; then
+ $2_version=`($dir/$2-config --version) 2>/dev/null`
+ if test ".$$2_version" != .; then
+ CPPFLAGS="$CPPFLAGS `$dir/$2-config --cflags`"
+ CFLAGS="$CFLAGS `$dir/$2-config --cflags`"
+ LDFLAGS="$LDFLAGS `$dir/$2-config --ldflags`"
+ found=1
+ break
+ fi
+ fi
+ done
+ # via standard paths
+ if test ".$found" = .0; then
+ for dir in $with_$2/include/$2 $with_$2/include $with_$2; do
+ if test -f "$dir/$4"; then
+ CPPFLAGS="$CPPFLAGS -I$dir"
+ CFLAGS="$CFLAGS -I$dir"
+ found=1
+ break
+ fi
+ done
+ for dir in $with_$2/lib/$2 $with_$2/lib $with_$2; do
+ if test -f "$dir/lib$2.a" -o -f "$dir/lib$2.so"; then
+ LDFLAGS="$LDFLAGS -L$dir"
+ found=1
+ break
+ fi
+ done
+ fi
+ # in any subarea
+ if test ".$found" = .0; then
+changequote(, )dnl
+ for file in x `find $with_$2 -name "$4" -type f -print`; do
+ test .$file = .x && continue
+ dir=`echo $file | sed -e 's;[[^/]]*$;;' -e 's;\(.\)/$;\1;'`
+ CPPFLAGS="$CPPFLAGS -I$dir"
+ CFLAGS="$CFLAGS -I$dir"
+ done
+ for file in x `find $with_$2 -name "lib$2.[[aso]]" -type f -print`; do
+ test .$file = .x && continue
+ dir=`echo $file | sed -e 's;[[^/]]*$;;' -e 's;\(.\)/$;\1;'`
+ LDFLAGS="$LDFLAGS -L$dir"
+ done
+changequote([, ])dnl
+ fi
+ fi
+ fi
+ AC_HAVE_HEADERS($4)
+ AC_CHECK_LIB($2, $3)
+ AC_IFALLYES(header:$4 lib:$2_$3, with_$2=yes, with_$2=no)
+ if test ".$with_$2" = .no; then
+ AC_ERROR([Unable to find $1 library])
+ fi
+,
+if test ".$with_$2" = .; then
+ with_$2=no
+fi
+)dnl
+AC_MSG_CHECKING(whether to build against $1 library)
+if test ".$with_$2" = .yes; then
+ ifelse([$5], , :, [$5])
+else
+ ifelse([$6], , :, [$6])
+fi
+AC_MSG_RESULT([$with_$2])
+])dnl
+
+dnl ##
+dnl ## Check whether SVR4/SUSv2 makecontext(2), swapcontext(2) and
+dnl ## friends can be used for user-space context switching
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_MCSC(<success-action>, <failure-action>)
+dnl ##
+
+AC_DEFUN(AC_CHECK_MCSC, [
+AC_MSG_CHECKING(for usable SVR4/SUSv2 makecontext(2)/swapcontext(2))
+AC_CACHE_VAL(ac_cv_check_mcsc, [
+AC_TRY_RUN([
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ucontext.h>
+
+ucontext_t uc_child;
+ucontext_t uc_main;
+
+void child(void *arg)
+{
+ if (arg != (void *)12345)
+ exit(1);
+ if (swapcontext(&uc_child, &uc_main) != 0)
+ exit(1);
+}
+
+int main(int argc, char *argv[])
+{
+ FILE *fp;
+ void *stack;
+
+ /* the default is that it fails */
+ if ((fp = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(fp, "no\n");
+ fclose(fp);
+
+ /* configure a child user-space context */
+ if ((stack = malloc(64*1024)) == NULL)
+ exit(1);
+ if (getcontext(&uc_child) != 0)
+ exit(1);
+ uc_child.uc_link = NULL;
+ uc_child.uc_stack.ss_sp = (char *)stack+(32*1024);
+ uc_child.uc_stack.ss_size = 32*1024;
+ uc_child.uc_stack.ss_flags = 0;
+ makecontext(&uc_child, child, 2, (void *)12345);
+
+ /* switch into the user context */
+ if (swapcontext(&uc_main, &uc_child) != 0)
+ exit(1);
+
+ /* Fine, child came home */
+ if ((fp = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(fp, "yes\n");
+ fclose(fp);
+
+ /* die successfully */
+ exit(0);
+}
+],
+ac_cv_check_mcsc=`cat conftestval`,
+ac_cv_check_mcsc=no,
+ac_cv_check_mcsc=no
+)dnl
+])dnl
+AC_MSG_RESULT([$ac_cv_check_mcsc])
+if test ".$ac_cv_check_mcsc" = .yes; then
+ ifelse([$1], , :, [$1])
+else
+ ifelse([$2], , :, [$2])
+fi
+])dnl
+
+dnl ##
+dnl ## Check how stacks have to be setup for the functions
+dnl ## sigstack(2), sigaltstack(2) and makecontext(2).
+dnl ##
+dnl ## configure.in:
+dnl ## AC_CHECK_STACKSETUP(sigstack|sigaltstack|makecontext, <macro-addr>, <macro-size>)
+dnl ## acconfig.h:
+dnl ## #undef HAVE_{SIGSTACK|SIGALTSTACK|MAKECONTEXT}
+dnl ## #undef HAVE_STACK_T
+dnl ## header.h.in:
+dnl ## @<macro-addr>@
+dnl ## @<macro-size>@
+dnl ## source.c:
+dnl ## #include "header.h"
+dnl ## xxx.sp_ss = <macro-addr>(skaddr, sksize);
+dnl ## xxx.sp_size = <macro-size>(skaddr, sksize);
+dnl ##
+
+AC_DEFUN(AC_CHECK_STACKSETUP,[dnl
+dnl # check for consistent usage
+ifelse($1,[sigstack],,[
+ifelse($1,[sigaltstack],,[
+ifelse($1,[makecontext],,[
+errprint(__file__:__line__: [AC_CHECK_STACKSETUP: only sigstack, sigaltstack and makecontext supported
+])])])])
+dnl # we require the C compiler and the standard headers
+AC_REQUIRE([AC_HEADER_STDC])dnl
+dnl # we at least require the function to check
+AC_CHECK_FUNCTIONS($1)
+dnl # sigaltstack on some platforms uses stack_t instead of struct sigaltstack
+ifelse($1, sigaltstack, [
+ AC_ONCE(stacksetup_stack_t, [
+ AC_CHECK_TYPEDEF(stack_t, signal.h)
+ ])
+])
+dnl # display processing header
+AC_MSG_CHECKING(for stack setup via $1)
+dnl # but cache the whole results
+AC_CACHE_VAL(ac_cv_stacksetup_$1,[
+if test ".$ac_cv_func_$1" = .no; then
+ dnl # no need to check anything when function is already missing
+ ac_cv_stacksetup_$1="N.A.:/*N.A.*/,/*N.A.*/"
+else
+ dnl # setup compile environment
+ OCFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -DTEST_$1"
+ cross_compile=no
+ dnl # compile and run the test program
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#if defined(TEST_sigstack) || defined(TEST_sigaltstack)
+#include <sys/types.h>
+#include <signal.h>
+#include <unistd.h>
+#endif
+#if defined(TEST_makecontext)
+#include <ucontext.h>
+#endif
+union alltypes {
+ long l;
+ double d;
+ void *vp;
+ void (*fp)(void);
+ char *cp;
+};
+static volatile char *handler_addr = (char *)0xDEAD;
+#if defined(TEST_sigstack) || defined(TEST_sigaltstack)
+static volatile int handler_done = 0;
+void handler(int sig)
+{
+ char garbage[1024];
+ int i;
+ auto int dummy;
+ for (i = 0; i < 1024; i++)
+ garbage[i] = 'X';
+ handler_addr = (char *)&dummy;
+ handler_done = 1;
+ return;
+}
+#endif
+#if defined(TEST_makecontext)
+static ucontext_t uc_handler;
+static ucontext_t uc_main;
+void handler(void)
+{
+ char garbage[1024];
+ int i;
+ auto int dummy;
+ for (i = 0; i < 1024; i++)
+ garbage[i] = 'X';
+ handler_addr = (char *)&dummy;
+ swapcontext(&uc_handler, &uc_main);
+ return;
+}
+#endif
+int main(int argc, char *argv[])
+{
+ FILE *f;
+ char *skaddr;
+ char *skbuf;
+ int sksize;
+ char result[1024];
+ int i;
+ sksize = 32768;
+ skbuf = (char *)malloc(sksize*2+2*sizeof(union alltypes));
+ if (skbuf == NULL)
+ exit(1);
+ for (i = 0; i < sksize*2+2*sizeof(union alltypes); i++)
+ skbuf[i] = 'A';
+ skaddr = skbuf+sizeof(union alltypes);
+#if defined(TEST_sigstack) || defined(TEST_sigaltstack)
+ {
+ struct sigaction sa;
+#if defined(TEST_sigstack)
+ struct sigstack ss;
+#elif defined(TEST_sigaltstack) && defined(HAVE_STACK_T)
+ stack_t ss;
+#else
+ struct sigaltstack ss;
+#endif
+#if defined(TEST_sigstack)
+ ss.ss_sp = (void *)(skaddr + sksize);
+ ss.ss_onstack = 0;
+ if (sigstack(&ss, NULL) < 0)
+ exit(1);
+#elif defined(TEST_sigaltstack)
+ ss.ss_sp = (void *)(skaddr + sksize);
+ ss.ss_size = sksize;
+ ss.ss_flags = 0;
+ if (sigaltstack(&ss, NULL) < 0)
+ exit(1);
+#endif
+ memset((void *)&sa, 0, sizeof(struct sigaction));
+ sa.sa_handler = handler;
+ sa.sa_flags = SA_ONSTACK;
+ sigemptyset(&sa.sa_mask);
+ sigaction(SIGUSR1, &sa, NULL);
+ kill(getpid(), SIGUSR1);
+ while (!handler_done)
+ /*nop*/;
+ }
+#endif
+#if defined(TEST_makecontext)
+ {
+ if (getcontext(&uc_handler) != 0)
+ exit(1);
+ uc_handler.uc_link = NULL;
+ uc_handler.uc_stack.ss_sp = (void *)(skaddr + sksize);
+ uc_handler.uc_stack.ss_size = sksize;
+ uc_handler.uc_stack.ss_flags = 0;
+ makecontext(&uc_handler, handler, 1);
+ swapcontext(&uc_main, &uc_handler);
+ }
+#endif
+ if (handler_addr == (char *)0xDEAD)
+ exit(1);
+ if (handler_addr < skaddr+sksize) {
+ /* stack was placed into lower area */
+ if (*(skaddr+sksize) != 'A')
+ sprintf(result, "(skaddr)+(sksize)-%d,(sksize)-%d",
+ sizeof(union alltypes), sizeof(union alltypes));
+ else
+ strcpy(result, "(skaddr)+(sksize),(sksize)");
+ }
+ else {
+ /* stack was placed into higher area */
+ if (*(skaddr+sksize*2) != 'A')
+ sprintf(result, "(skaddr),(sksize)-%d", sizeof(union alltypes));
+ else
+ strcpy(result, "(skaddr),(sksize)");
+ }
+ if ((f = fopen("conftestval", "w")) == NULL)
+ exit(1);
+ fprintf(f, "%s\n", result);
+ fclose(f);
+ exit(0);
+}
+],[
+dnl # test successully passed
+ac_cv_stacksetup_$1=`cat conftestval`
+ac_cv_stacksetup_$1="ok:$ac_cv_stacksetup_$1"
+],[
+dnl # test failed
+ac_cv_stacksetup_$1='guessed:(skaddr),(sksize)'
+],[
+dnl # cross-platform => failed
+ac_cv_stacksetup_$1='guessed:(skaddr),(sksize)'
+])
+dnl # restore original compile environment
+CFLAGS="$OCFLAGS"
+])dnl
+fi
+dnl # extract result ingredients of single cached result value
+type=`echo $ac_cv_stacksetup_$1 | sed -e 's;:.*$;;'`
+addr=`echo $ac_cv_stacksetup_$1 | sed -e 's;^.*:;;' -e 's;,.*$;;'`
+size=`echo $ac_cv_stacksetup_$1 | sed -e 's;^.*:;;' -e 's;^.*,;;'`
+dnl # export result ingredients
+$2="#define $2(skaddr,sksize) ($addr)"
+$3="#define $3(skaddr,sksize) ($size)"
+AC_SUBST($2)dnl
+AC_SUBST($3)dnl
+dnl # display result indicator
+AC_MSG_RESULT([$type])
+dnl # display results in detail
+AC_MSG_VERBOSE([$]$2)
+AC_MSG_VERBOSE([$]$3)
+])
projects / platform / upstream / gstreamer.git / commitdiff