+ if test $ac_cv_header_pthread_h = yes ; then
+ echo $ac_n "checking POSIX thread version""... $ac_c" 1>&6
+echo "configure:4404: checking POSIX thread version" >&5
+if eval "test \"`echo '$''{'ol_cv_pthread_version'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ cat > conftest.$ac_ext <<EOF
+#line 4410 "configure"
+#include "confdefs.h"
+
+# include <pthread.h>
+ /* this check could be improved */
+# ifdef PTHREAD_ONCE_INIT
+ pthread_version_final
+# endif
+
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "pthread_version_final" >/dev/null 2>&1; then
+ rm -rf conftest*
+ ol_pthread_final=yes
+else
+ rm -rf conftest*
+ ol_pthread_final=no
+fi
+rm -f conftest*
+
+
+ cat > conftest.$ac_ext <<EOF
+#line 4432 "configure"
+#include "confdefs.h"
+
+# include <pthread.h>
+ /* this check could be improved */
+# ifdef pthread_once_init
+ pthread_version_draft4
+# endif
+
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "pthread_version_draft4" >/dev/null 2>&1; then
+ rm -rf conftest*
+ ol_pthread_draft4=yes
+else
+ rm -rf conftest*
+ ol_pthread_draft4=no
+fi
+rm -f conftest*
+
+
+ if test $ol_pthread_final = yes -a $ol_pthread_draft4 = no; then
+ ol_cv_pthread_version=final
+ elif test $ol_pthread_final = no -a $ol_pthread_draft4 = yes; then
+ ol_cv_pthread_version=draft4
+ else
+ ol_cv_pthread_version=unknown
+ fi
+
+fi
+
+echo "$ac_t""$ol_cv_pthread_version" 1>&6
+
+
+ if test $ol_cv_pthread_version = final ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_PTHREADS_FINAL 1
+EOF
+
+ elif test $ol_cv_pthread_version = draft4 ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_PTHREADS_D4 1
+EOF
+
+ else
+ { echo "configure: error: unknown pthread version" 1>&2; exit 1; }
+ fi
+
+ # consider threads found
+ ol_with_threads=found
+
+
+echo $ac_n "checking for LinuxThreads""... $ac_c" 1>&6
+echo "configure:4485: checking for LinuxThreads" >&5
+if eval "test \"`echo '$''{'ol_cv_linux_threads'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ res=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
+ if test "$res" -gt 0 ; then
+ ol_cv_linux_threads=yes
+ else
+ ol_cv_linux_threads=no
+ fi
+
+fi
+
+echo "$ac_t""$ol_cv_linux_threads" 1>&6
+
+
+ if test $ol_cv_linux_threads = yes ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_LINUX_THREADS 1
+EOF
+
+ fi
+
+
+ echo $ac_n "checking for pthread_create in default libraries""... $ac_c" 1>&6
+echo "configure:4511: checking for pthread_create in default libraries" >&5
+ if eval "test \"`echo '$''{'ol_cv_pthread_create'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ if test "$cross_compiling" = yes; then
+ ol_cv_pthread_create=yes
+else
+ cat > conftest.$ac_ext <<EOF
+#line 4520 "configure"
+#include "confdefs.h"
+
+#include <pthread.h>
+#ifndef NULL
+#define NULL (void*)0
+#endif
+
+static void *task(p)
+ void *p;
+{
+ return (void *) (p == NULL);
+}
+
+int main(argc, argv)
+ int argc;
+ char **argv;
+{
+ pthread_t t;
+ int status;
+
+ /* make sure pthread_create() isn't just a stub */
+#if HAVE_PTHREADS_D4
+ status = pthread_create(&t, pthread_attr_default, task, NULL));
+#else
+ status = pthread_create(&t, NULL, task, NULL);
+#endif
+
+ if( status ) return status;
+
+ /* make sure pthread_detach() isn't just a stub */
+#if HAVE_PTHREADS_D4
+ status = pthread_detach( &t );
+#else
+ status = pthread_detach( t );
+#endif
+
+ if( status ) return status;
+
+ return status;
+}
+
+EOF
+if { (eval echo configure:4563: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+ ol_cv_pthread_create=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -fr conftest*
+ ol_cv_pthread_create=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+ echo "$ac_t""$ol_cv_pthread_create" 1>&6
+
+ if test $ol_cv_pthread_create != no ; then
+ ol_link_threads=posix
+ fi
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for pthread_create with -mt""... $ac_c" 1>&6
+echo "configure:4585: checking for pthread_create with -mt" >&5
+if eval "test \"`echo '$''{'ol_cv_pthread_mt_flag'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-mt $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 4593 "configure"
+#include "confdefs.h"
+char pthread_create();
+int main() {
+pthread_create();
+; return 0; }
+EOF
+if { (eval echo configure:4600: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_pthread_mt_flag=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_pthread_mt_flag=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_pthread_mt_flag" 1>&6
+
+ if test $ol_cv_pthread_mt_flag = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -mt"
+ ol_link_threads=posix
+ fi
+ fi
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for pthread_create with -kthread""... $ac_c" 1>&6
+echo "configure:4624: checking for pthread_create with -kthread" >&5
+if eval "test \"`echo '$''{'ol_cv_kthread_flag'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-kthread $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 4632 "configure"
+#include "confdefs.h"
+#include <pthread.h>
+int main() {
+
+#if HAVE_PTHREADS_D4
+ pthread_create(NULL,pthread_attr_default,NULL,NULL);
+#else
+ pthread_t t;
+ pthread_create(&t,NULL,NULL,NULL);
+ pthread_detach(t);
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:4647: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_kthread_flag=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_kthread_flag=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_kthread_flag" 1>&6
+
+ if test $ol_cv_kthread_flag = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -kthread"
+ ol_link_threads=posix
+ fi
+ fi
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for pthread_create with -pthread""... $ac_c" 1>&6
+echo "configure:4671: checking for pthread_create with -pthread" >&5
+if eval "test \"`echo '$''{'ol_cv_pthread_flag'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-pthread $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 4679 "configure"
+#include "confdefs.h"
+#include <pthread.h>
+int main() {
+
+#if HAVE_PTHREADS_D4
+ pthread_create(NULL,pthread_attr_default,NULL,NULL);
+#else
+ pthread_create(NULL,NULL,NULL,NULL);
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:4692: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_pthread_flag=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_pthread_flag=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_pthread_flag" 1>&6
+
+ if test $ol_cv_pthread_flag = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -pthread"
+ ol_link_threads=posix
+ fi
+ fi
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for pthread_create with -pthreads""... $ac_c" 1>&6
+echo "configure:4716: checking for pthread_create with -pthreads" >&5
+if eval "test \"`echo '$''{'ol_cv_pthreads_flag'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-pthreads $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 4724 "configure"
+#include "confdefs.h"
+#include <pthread.h>
+int main() {
+
+#if HAVE_PTHREADS_D4
+ pthread_create(NULL,pthread_attr_default,NULL,NULL);
+#else
+ pthread_create(NULL,NULL,NULL,NULL);
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:4737: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_pthreads_flag=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_pthreads_flag=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_pthreads_flag" 1>&6
+
+ if test $ol_cv_pthreads_flag = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -pthreads"
+ ol_link_threads=posix
+ fi
+ fi
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for pthread_create with -thread""... $ac_c" 1>&6
+echo "configure:4761: checking for pthread_create with -thread" >&5
+if eval "test \"`echo '$''{'ol_cv_thread_flag'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-thread $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 4769 "configure"
+#include "confdefs.h"
+char pthread_create();
+int main() {
+pthread_create();
+; return 0; }
+EOF
+if { (eval echo configure:4776: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_thread_flag=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_thread_flag=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_thread_flag" 1>&6
+
+ if test $ol_cv_thread_flag = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -thread"
+ ol_link_threads=posix
+ fi
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_mutex_unlock in -lpthread""... $ac_c" 1>&6
+echo "configure:4801: checking for pthread_mutex_unlock in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_mutex_unlock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthread -lmach -lexc -lc_r $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 4809 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_mutex_unlock();
+
+int main() {
+pthread_mutex_unlock()
+; return 0; }
+EOF
+if { (eval echo configure:4820: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc -lc_r"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_mutex_lock in -lpthread""... $ac_c" 1>&6
+echo "configure:4850: checking for pthread_mutex_lock in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_mutex_lock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthread -lmach -lexc $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 4858 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_mutex_lock();
+
+int main() {
+pthread_mutex_lock()
+; return 0; }
+EOF
+if { (eval echo configure:4869: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_mutex_trylock in -lpthread""... $ac_c" 1>&6
+echo "configure:4899: checking for pthread_mutex_trylock in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_mutex_trylock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthread -lexc $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 4907 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_mutex_trylock();
+
+int main() {
+pthread_mutex_trylock()
+; return 0; }
+EOF
+if { (eval echo configure:4918: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lexc"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_join in -lpthread""... $ac_c" 1>&6
+echo "configure:4948: checking for pthread_join in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_join | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthread -Wl,-woff,85 $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 4956 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_join();
+
+int main() {
+pthread_join()
+; return 0; }
+EOF
+if { (eval echo configure:4967: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthread"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
+echo "configure:4997: checking for pthread_create in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthread $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5005 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_create();
+
+int main() {
+pthread_create()
+; return 0; }
+EOF
+if { (eval echo configure:5016: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthread"
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_create in -lc_r""... $ac_c" 1>&6
+echo "configure:5045: checking for pthread_create in -lc_r" >&5
+ac_lib_var=`echo c_r'_'pthread_create | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lc_r $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5053 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_create();
+
+int main() {
+pthread_create()
+; return 0; }
+EOF
+if { (eval echo configure:5064: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lc_r"
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for pthread_create with -threads""... $ac_c" 1>&6
+echo "configure:5092: checking for pthread_create with -threads" >&5
+if eval "test \"`echo '$''{'ol_cv_threads_flag'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-threads $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 5100 "configure"
+#include "confdefs.h"
+char pthread_create();
+int main() {
+
+ pthread_create();
+
+; return 0; }
+EOF
+if { (eval echo configure:5109: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_threads_flag=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_threads_flag=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_threads_flag" 1>&6
+
+ if test $ol_cv_threads_flag = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -threads"
+ ol_link_threads=posix
+ fi
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_mutex_unlock in -lpthreads""... $ac_c" 1>&6
+echo "configure:5134: checking for pthread_mutex_unlock in -lpthreads" >&5
+ac_lib_var=`echo pthreads'_'pthread_mutex_unlock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthreads -lmach -lexc -lc_r $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5142 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_mutex_unlock();
+
+int main() {
+pthread_mutex_unlock()
+; return 0; }
+EOF
+if { (eval echo configure:5153: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc -lc_r"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_mutex_lock in -lpthreads""... $ac_c" 1>&6
+echo "configure:5183: checking for pthread_mutex_lock in -lpthreads" >&5
+ac_lib_var=`echo pthreads'_'pthread_mutex_lock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthreads -lmach -lexc $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5191 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_mutex_lock();
+
+int main() {
+pthread_mutex_lock()
+; return 0; }
+EOF
+if { (eval echo configure:5202: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_mutex_trylock in -lpthreads""... $ac_c" 1>&6
+echo "configure:5232: checking for pthread_mutex_trylock in -lpthreads" >&5
+ac_lib_var=`echo pthreads'_'pthread_mutex_trylock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthreads -lexc $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5240 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_mutex_trylock();
+
+int main() {
+pthread_mutex_trylock()
+; return 0; }
+EOF
+if { (eval echo configure:5251: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lexc"
+
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads = no ; then
+ save_LIBS="$LIBS"
+ echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
+echo "configure:5281: checking for pthread_create in -lpthreads" >&5
+ac_lib_var=`echo pthreads'_'pthread_create | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpthreads $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 5289 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_create();
+
+int main() {
+pthread_create()
+; return 0; }
+EOF
+if { (eval echo configure:5300: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+
+ ol_link_threads=posix
+ LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads"
+else
+ echo "$ac_t""no" 1>&6
+:
+fi
+
+ LIBS="$save_LIBS"
+ fi
+
+ if test $ol_link_threads != no ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_PTHREADS 1
+EOF
+
+
+ save_CPPFLAGS="$CPPFLAGS"
+ save_LIBS="$LIBS"
+ LIBS="$LTHREAD_LIBS $LIBS"
+
+ for ac_func in sched_yield pthread_yield
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:5339: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 5344 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func(); below. */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error. */
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:5367: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_func_$ac_func=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+ cat >> confdefs.h <<EOF
+#define $ac_tr_func 1
+EOF
+
+else
+ echo "$ac_t""no" 1>&6
+fi
+done
+
+
+ if test $ac_cv_func_sched_yield = no -a \
+ $ac_cv_func_pthread_yield = no ; then
+ echo $ac_n "checking for sched_yield in -lrt""... $ac_c" 1>&6
+echo "configure:5395: checking for sched_yield in -lrt" >&5
+ac_lib_var=`echo rt'_'sched_yield | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then