+rm -fr conftest*
+fi
+
+
+ # restore the LIBS
+ LIBS="$ol_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_pthread_lib_lpthreads" 1>&6
+
+ if test $ol_cv_pthread_lib_lpthreads = yes ; then
+ ol_link_pthreads="-lpthreads"
+ ol_link_threads=posix
+ fi
+fi
+
+
+ if test $ol_link_threads != no ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS $ol_link_pthreads"
+
+ save_CPPFLAGS="$CPPFLAGS"
+ save_LIBS="$LIBS"
+ LIBS="$LTHREAD_LIBS $LIBS"
+
+ for ac_func in sched_yield pthread_yield thr_yield
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:14730: checking for $ac_func" >&5
+if eval "test \"\${ac_cv_func_$ac_func+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 14735 "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 $ac_func();
+char (*f)();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:14759: \"$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 -a \
+ $ac_cv_func_thr_yield = no ; then
+ echo $ac_n "checking for sched_yield in -lrt""... $ac_c" 1>&6
+echo "configure:14788: checking for sched_yield in -lrt" >&5
+ac_lib_var=`echo rt'_'sched_yield | sed 'y%./+-:%__p__%'`
+if eval "test \"\${ac_cv_lib_$ac_lib_var+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lrt $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 14796 "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 sched_yield();
+
+int main() {
+sched_yield()
+; return 0; }
+EOF
+if { (eval echo configure:14807: \"$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 "$ac_t""yes" 1>&6
+ LTHREAD_LIBS="$LTHREAD_LIBS -lrt"
+ cat >> confdefs.h <<\EOF
+#define HAVE_SCHED_YIELD 1
+EOF
+
+ ac_cv_func_sched_yield=yes
+else
+ echo "$ac_t""no" 1>&6
+ac_cv_func_sched_yield=no
+fi
+
+ fi
+ if test $ac_cv_func_sched_yield = no -a \
+ $ac_cv_func_pthread_yield = no -a \
+ "$ac_cv_func_thr_yield" = no ; then
+ echo "configure: warning: could not locate sched_yield() or pthread_yield()" 1>&2
+ fi
+
+ for ac_func in pthread_kill pthread_rwlock_destroy
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:14843: checking for $ac_func" >&5
+if eval "test \"\${ac_cv_func_$ac_func+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 14848 "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 $ac_func();
+char (*f)();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:14872: \"$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
+
+
+ echo $ac_n "checking for pthread_detach with <pthread.h>""... $ac_c" 1>&6
+echo "configure:14898: checking for pthread_detach with <pthread.h>" >&5
+if eval "test \"\${ol_cv_func_pthread_detach+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ cat > conftest.$ac_ext <<EOF
+#line 14904 "configure"
+#include "confdefs.h"
+
+#include <pthread.h>
+#ifndef NULL
+#define NULL (void*)0
+#endif
+
+int main() {
+pthread_detach(NULL);
+; return 0; }
+EOF
+if { (eval echo configure:14916: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_func_pthread_detach=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_func_pthread_detach=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ol_cv_func_pthread_detach" 1>&6
+
+ if test $ol_cv_func_pthread_detach = no ; then
+ { echo "configure: error: could not locate pthread_detach()" 1>&2; exit 1; }
+ fi
+
+ cat >> confdefs.h <<\EOF
+#define HAVE_PTHREAD_DETACH 1
+EOF
+
+
+ for ac_func in \
+ pthread_setconcurrency \
+ pthread_getconcurrency \
+ thr_setconcurrency \
+ thr_getconcurrency \
+
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:14948: checking for $ac_func" >&5
+if eval "test \"\${ac_cv_func_$ac_func+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 14953 "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 $ac_func();
+char (*f)();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:14977: \"$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
+
+
+
+ for ac_func in pthread_kill_other_threads_np
+do
+echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:15006: checking for $ac_func" >&5
+if eval "test \"\${ac_cv_func_$ac_func+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15011 "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 $ac_func();
+char (*f)();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:15035: \"$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
+
+ echo $ac_n "checking for LinuxThreads implementation""... $ac_c" 1>&6
+echo "configure:15060: checking for LinuxThreads implementation" >&5
+if eval "test \"\${ol_cv_sys_linux_threads+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ol_cv_sys_linux_threads=$ac_cv_func_pthread_kill_other_threads_np
+fi
+
+echo "$ac_t""$ol_cv_sys_linux_threads" 1>&6
+
+
+
+
+ echo $ac_n "checking for LinuxThreads consistency""... $ac_c" 1>&6
+echo "configure:15073: checking for LinuxThreads consistency" >&5
+if eval "test \"\${ol_cv_linux_threads+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ if test $ol_cv_header_linux_threads = yes -a \
+ $ol_cv_sys_linux_threads = yes; then
+ ol_cv_linux_threads=yes
+ elif test $ol_cv_header_linux_threads = no -a \
+ $ol_cv_sys_linux_threads = no; then
+ ol_cv_linux_threads=no
+ else
+ ol_cv_linux_threads=error
+ fi
+
+fi
+
+echo "$ac_t""$ol_cv_linux_threads" 1>&6
+
+
+ if test $ol_cv_linux_threads = error; then
+ { echo "configure: error: LinuxThreads header/library mismatch" 1>&2; exit 1; };
+ fi
+
+ echo $ac_n "checking if pthread_create() works""... $ac_c" 1>&6
+echo "configure:15098: checking if pthread_create() works" >&5
+if eval "test \"\${ol_cv_pthread_create_works+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ if test "$cross_compiling" = yes; then
+ ol_cv_pthread_create_works=yes
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15107 "configure"
+#include "confdefs.h"
+/* pthread test headers */
+#include <pthread.h>
+#if HAVE_PTHREADS < 7
+#include <errno.h>
+#endif
+#ifndef NULL
+#define NULL (void*)0
+#endif
+
+static void *task(p)
+ void *p;
+{
+ return (void *) (p == NULL);
+}
+
+
+int main(argc, argv)
+ int argc;
+ char **argv;
+{
+
+ /* pthread test function */
+#ifndef PTHREAD_CREATE_DETACHED
+#define PTHREAD_CREATE_DETACHED 1
+#endif
+ pthread_t t;
+ int status;
+ int detach = PTHREAD_CREATE_DETACHED;
+
+#if HAVE_PTHREADS > 4
+ /* Final pthreads */
+ pthread_attr_t attr;
+
+ status = pthread_attr_init(&attr);
+ if( status ) return status;
+
+#if HAVE_PTHREADS < 7
+ status = pthread_attr_setdetachstate(&attr, &detach);
+ if( status < 0 ) status = errno;
+#else
+ status = pthread_attr_setdetachstate(&attr, detach);
+#endif
+ if( status ) return status;
+ status = pthread_create( &t, &attr, task, NULL );
+#if HAVE_PTHREADS < 7
+ if( status < 0 ) status = errno;
+#endif
+ if( status ) return status;
+#else
+ /* Draft 4 pthreads */
+ status = pthread_create( &t, pthread_attr_default, task, NULL );
+ if( status ) return errno;
+
+ /* give thread a chance to complete */
+ /* it should remain joinable and hence detachable */
+ sleep( 1 );
+
+ status = pthread_detach( &t );
+ if( status ) return errno;
+#endif
+
+#ifdef HAVE_LINUX_THREADS
+ pthread_kill_other_threads_np();
+#endif
+
+ return 0;
+
+}
+
+EOF
+if { (eval echo configure:15179: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+ ol_cv_pthread_create_works=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -fr conftest*
+ ol_cv_pthread_create_works=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$ol_cv_pthread_create_works" 1>&6
+
+ if test $ol_cv_pthread_create_works = no ; then
+ { echo "configure: error: pthread_create is not usable, check environment settings" 1>&2; exit 1; }
+ fi
+
+ if test $ol_with_yielding_select = auto ; then
+ echo $ac_n "checking if select yields when using pthreads""... $ac_c" 1>&6
+echo "configure:15201: checking if select yields when using pthreads" >&5
+if eval "test \"\${ol_cv_pthread_select_yields+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ if test "$cross_compiling" = yes; then
+ ol_cv_pthread_select_yields=cross
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15210 "configure"
+#include "confdefs.h"
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <pthread.h>
+#ifndef NULL
+#define NULL (void*) 0
+#endif
+
+static int fildes[2];
+
+static void *task(p)
+ void *p;
+{
+ int i;
+ struct timeval tv;
+
+ fd_set rfds;
+
+ tv.tv_sec=10;
+ tv.tv_usec=0;
+
+ FD_ZERO(&rfds);
+ FD_SET(fildes[0], &rfds);
+
+ /* we're not interested in any fds */
+ i = select(FD_SETSIZE, &rfds, NULL, NULL, &tv);
+
+ if(i < 0) {
+ perror("select");
+ exit(10);
+ }
+
+ exit(0); /* if we exit here, the select blocked the whole process */
+}
+
+int main(argc, argv)
+ int argc;
+ char **argv;
+{
+ pthread_t t;
+
+ /* create a pipe to select */
+ if(pipe(&fildes[0])) {
+ perror("select");
+ exit(1);
+ }
+
+#ifdef HAVE_PTHREAD_SETCONCURRENCY
+ (void) pthread_setconcurrency(2);
+#else
+#ifdef HAVE_THR_SETCONCURRENCY
+ /* Set Solaris LWP concurrency to 2 */
+ thr_setconcurrency(2);
+#endif
+#endif
+
+#if HAVE_PTHREADS < 6
+ pthread_create(&t, pthread_attr_default, task, NULL);
+#else
+ pthread_create(&t, NULL, task, NULL);
+#endif
+
+ /* make sure task runs first */
+#if HAVE_THR_YIELD
+ thr_yield();
+#elif defined( HAVE_SCHED_YIELD )
+ sched_yield();
+#elif defined( HAVE_PTHREAD_YIELD )
+ pthread_yield();
+#endif
+
+ exit(2);
+}
+EOF
+if { (eval echo configure:15287: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+ ol_cv_pthread_select_yields=no
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -fr conftest*
+ ol_cv_pthread_select_yields=yes
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$ol_cv_pthread_select_yields" 1>&6
+
+ if test $ol_cv_pthread_select_yields = cross ; then
+ { echo "configure: error: crossing compiling: use --with-yielding_select=yes|no|manual" 1>&2; exit 1; }
+ fi
+
+ if test $ol_cv_pthread_select_yields = yes ; then
+ ol_with_yielding_select=yes
+ fi
+ fi
+
+ CPPFLAGS="$save_CPPFLAGS"
+ LIBS="$save_LIBS"
+ else
+ { echo "configure: error: could not locate usable POSIX Threads" 1>&2; exit 1; }
+ fi
+ fi
+
+ if test $ol_with_threads = posix ; then
+ { echo "configure: error: could not locate POSIX Threads" 1>&2; exit 1; }
+ fi
+fi
+
+if test $ol_with_threads = auto -o $ol_with_threads = yes \
+ -o $ol_with_threads = mach ; then
+
+ for ac_hdr in mach/cthreads.h cthreads.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:15331: checking for $ac_hdr" >&5
+if eval "test \"\${ac_cv_header_$ac_safe+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15336 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:15341: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+ rm -rf conftest*
+ eval "ac_cv_header_$ac_safe=yes"
+else
+ echo "$ac_err" >&5
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+ cat >> confdefs.h <<EOF
+#define $ac_tr_hdr 1
+EOF
+
+else
+ echo "$ac_t""no" 1>&6
+fi
+done
+
+ if test $ac_cv_header_mach_cthreads_h = yes ; then
+ ol_with_threads=found
+
+ echo $ac_n "checking for cthread_fork""... $ac_c" 1>&6
+echo "configure:15371: checking for cthread_fork" >&5
+if eval "test \"\${ac_cv_func_cthread_fork+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15376 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char cthread_fork(); 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 cthread_fork();
+char (*f)();
+
+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_cthread_fork) || defined (__stub___cthread_fork)
+choke me
+#else
+f = cthread_fork;
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:15400: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_func_cthread_fork=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_func_cthread_fork=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'cthread_fork`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ ol_link_threads=yes
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+
+ if test $ol_link_threads = no ; then
+ echo $ac_n "checking for cthread_fork with -all_load""... $ac_c" 1>&6
+echo "configure:15422: checking for cthread_fork with -all_load" >&5
+if eval "test \"\${ol_cv_cthread_all_load+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+ save_LIBS="$LIBS"
+ LIBS="-all_load $LIBS"
+ cat > conftest.$ac_ext <<EOF
+#line 15430 "configure"
+#include "confdefs.h"
+#include <mach/cthreads.h>
+int main() {
+
+ cthread_fork((void *)0, (void *)0);
+
+; return 0; }
+EOF
+if { (eval echo configure:15439: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ ol_cv_cthread_all_load=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ol_cv_cthread_all_load=no
+fi
+rm -f conftest*
+ LIBS="$save_LIBS"
+
+fi
+
+echo "$ac_t""$ol_cv_cthread_all_load" 1>&6
+
+ if test $ol_cv_cthread_all_load = yes ; then
+ LTHREAD_LIBS="$LTHREAD_LIBS -all_load"
+ ol_link_threads=mach
+ ol_with_threads=found
+ fi
+ fi
+
+ elif test $ac_cv_header_cthreads_h = yes ; then
+
+ ol_with_threads=found
+
+ save_LIBS="$LIBS"
+ LIBS="$LIBS -lthreads"
+ echo $ac_n "checking for cthread_fork""... $ac_c" 1>&6
+echo "configure:15469: checking for cthread_fork" >&5
+if eval "test \"\${ac_cv_func_cthread_fork+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15474 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char cthread_fork(); 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 cthread_fork();
+char (*f)();
+
+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_cthread_fork) || defined (__stub___cthread_fork)
+choke me
+#else
+f = cthread_fork;
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:15498: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_func_cthread_fork=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_func_cthread_fork=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'cthread_fork`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ ol_link_threads=yes
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+ LIBS="$save_LIBS"
+
+ if test $ol_link_threads = yes ; then
+ LTHREAD_LIBS="-lthreads"
+ ol_link_threads=mach
+ ol_with_threads=found
+ else
+ { echo "configure: error: could not link with Mach CThreads" 1>&2; exit 1; }
+ fi
+
+ elif test $ol_with_threads = mach ; then
+ { echo "configure: error: could not locate Mach CThreads" 1>&2; exit 1; }
+ fi
+
+ if test $ol_link_threads = mach ; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_MACH_CTHREADS 1
+EOF
+
+ elif test $ol_with_threads = found ; then
+ { echo "configure: error: could not link with Mach CThreads" 1>&2; exit 1; }
+ fi
+fi
+
+if test $ol_with_threads = auto -o $ol_with_threads = yes \
+ -o $ol_with_threads = pth ; then
+
+ for ac_hdr in pth.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:15548: checking for $ac_hdr" >&5
+if eval "test \"\${ac_cv_header_$ac_safe+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 15553 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:15558: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+ rm -rf conftest*
+ eval "ac_cv_header_$ac_safe=yes"
+else
+ echo "$ac_err" >&5
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+ cat >> confdefs.h <<EOF
+#define $ac_tr_hdr 1
+EOF
+
+else
+ echo "$ac_t""no" 1>&6
+fi
+done
+
+
+ if test $ac_cv_header_pth_h = yes ; then
+ echo $ac_n "checking for pth_version in -lpth""... $ac_c" 1>&6
+echo "configure:15587: checking for pth_version in -lpth" >&5
+ac_lib_var=`echo pth'_'pth_version | sed 'y%./+-:%__p__%'`
+if eval "test \"\${ac_cv_lib_$ac_lib_var+set}\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpth $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 15595 "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 pth_version();
+
+int main() {
+pth_version()
+; return 0; }
+EOF
+if { (eval echo configure:15606: \"$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 "$ac_t""yes" 1>&6
+ have_pth=yes
+else
+ echo "$ac_t""no" 1>&6
+have_pth=no