From: Kurt Zeilenga <kurt@openldap.org>
Date: Tue, 2 Feb 1999 04:25:08 +0000 (+0000)
Subject: Update pthread detection yet again for Digital UNIX.
X-Git-Tag: OPENLDAP_REL_ENG_1_2_BETA2~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6be614b62b62456a58f8a570c2cd60b4e8e0b74d;p=thirdparty%2Fopenldap.git

Update pthread detection yet again for Digital UNIX.
---

diff --git a/configure b/configure
index 9e306e765b..685ac385a8 100755
--- a/configure
+++ b/configure
@@ -3587,7 +3587,7 @@ EOF
 
 		fi
 
-																																																								
+																																																												
 				echo $ac_n "checking for pthread_create""... $ac_c" 1>&6
 echo "configure:3593: checking for pthread_create" >&5
 if eval "test \"`echo '$''{'ac_cv_func_pthread_create'+set}'`\" = set"; then
@@ -3803,24 +3803,24 @@ echo "$ac_t""$ol_cv_thread_flag" 1>&6
 
 		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:3808: checking for pthread_mutex_lock in -lpthread" >&5
-ac_lib_var=`echo pthread'_'pthread_mutex_lock | sed 'y%./+-%__p_%'`
+			echo $ac_n "checking for pthread_mutex_unlock in -lpthread""... $ac_c" 1>&6
+echo "configure:3808: checking for pthread_mutex_unlock in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_mutex_unlock | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
-LIBS="-lpthread -lexc $LIBS"
+LIBS="-lpthread -lmach -lexc -lc_r $LIBS"
 cat > conftest.$ac_ext <<EOF
 #line 3816 "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();
+char pthread_mutex_unlock();
 
 int main() {
-pthread_mutex_lock()
+pthread_mutex_unlock()
 ; return 0; }
 EOF
 if { (eval echo configure:3827: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
@@ -3840,7 +3840,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lexc"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc -lc_r"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
@@ -3855,24 +3855,24 @@ 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:3860: checking for pthread_mutex_unlock in -lpthread" >&5
-ac_lib_var=`echo pthread'_'pthread_mutex_unlock | sed 'y%./+-%__p_%'`
+			echo $ac_n "checking for pthread_mutex_lock in -lpthread""... $ac_c" 1>&6
+echo "configure:3860: checking for pthread_mutex_lock in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_mutex_lock | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'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 -lc_r $LIBS"
+LIBS="-lpthread -lmach -lexc $LIBS"
 cat > conftest.$ac_ext <<EOF
 #line 3868 "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();
+char pthread_mutex_lock();
 
 int main() {
-pthread_mutex_unlock()
+pthread_mutex_lock()
 ; return 0; }
 EOF
 if { (eval echo configure:3879: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
@@ -3892,7 +3892,59 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc -lc_r"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc"
+				if test $ol_with_yielding_select = auto ; then
+					ol_with_yielding_select=yes
+				fi
+				
+else
+  echo "$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""... $ac_c" 1>&6
+echo "configure:3912: checking for pthread_mutex_trylock in -lpthread" >&5
+ac_lib_var=`echo pthread'_'pthread_mutex_trylock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'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 3920 "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:3931: \"$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"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
@@ -3908,7 +3960,7 @@ fi
 		if test $ol_link_threads = no ; then
 						save_LIBS="$LIBS"
 			echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:3912: checking for pthread_create in -lpthread" >&5
+echo "configure:3964: checking for pthread_create in -lpthread" >&5
 ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3916,7 +3968,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3920 "configure"
+#line 3972 "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
@@ -3927,7 +3979,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3931: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3983: \"$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
@@ -3956,7 +4008,7 @@ fi
 		if test $ol_link_threads = no ; then
 						save_LIBS="$LIBS"
 			echo $ac_n "checking for pthread_create in -lc_r""... $ac_c" 1>&6
-echo "configure:3960: checking for pthread_create in -lc_r" >&5
+echo "configure:4012: checking for pthread_create in -lc_r" >&5
 ac_lib_var=`echo c_r'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3964,7 +4016,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3968 "configure"
+#line 4020 "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
@@ -3975,7 +4027,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3979: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4031: \"$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
@@ -4004,7 +4056,7 @@ fi
 		if test $ol_link_threads = no ; then
 						save_LIBS="$LIBS"
 			echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
-echo "configure:4008: checking for pthread_create in -lpthreads" >&5
+echo "configure:4060: checking for pthread_create in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4012,7 +4064,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4016 "configure"
+#line 4068 "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
@@ -4023,7 +4075,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:4027: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4079: \"$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
@@ -4052,7 +4104,7 @@ fi
 				if test $ol_link_threads = no ; then
 						save_LIBS="$LIBS"
 			echo $ac_n "checking for pthread_join in -lpthreads""... $ac_c" 1>&6
-echo "configure:4056: checking for pthread_join in -lpthreads" >&5
+echo "configure:4108: checking for pthread_join in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_join | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4060,7 +4112,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads -Wl,-woff,85 $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4064 "configure"
+#line 4116 "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
@@ -4071,7 +4123,7 @@ int main() {
 pthread_join()
 ; return 0; }
 EOF
-if { (eval echo configure:4075: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4127: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4102,14 +4154,14 @@ fi
 			save_LIBS="$LIBS"
 			LIBS="$LIBS -lpthread"
 			echo $ac_n "checking for pthread_create() in HP-UX -lpthread""... $ac_c" 1>&6
-echo "configure:4106: checking for pthread_create() in HP-UX -lpthread" >&5
+echo "configure:4158: checking for pthread_create() in HP-UX -lpthread" >&5
 			ol_try_pthread_hpux_11=no
 			if eval "test \"`echo '$''{'ol_cv_pthread_hpux_11'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 				cat > conftest.$ac_ext <<EOF
-#line 4113 "configure"
+#line 4165 "configure"
 #include "confdefs.h"
 
 #include <pthread.h>
@@ -4122,7 +4174,7 @@ int main() {
 pthread_create(NULL, NULL, NULL, NULL);
 ; return 0; }
 EOF
-if { (eval echo configure:4126: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4178: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ol_try_pthread_hpux_11=yes
 					ol_cv_pthread_hpux_11=yes
@@ -4149,7 +4201,7 @@ fi
 
 		if test $ol_link_threads = no ; then
 						echo $ac_n "checking for pthread_create with -threads""... $ac_c" 1>&6
-echo "configure:4153: checking for pthread_create with -threads" >&5
+echo "configure:4205: checking for pthread_create with -threads" >&5
 if eval "test \"`echo '$''{'ol_cv_thread_flag'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4157,7 +4209,7 @@ else
 								save_LIBS="$LIBS"
 				LIBS="-threads $LIBS"
 				cat > conftest.$ac_ext <<EOF
-#line 4161 "configure"
+#line 4213 "configure"
 #include "confdefs.h"
 char pthread();
 int main() {
@@ -4166,7 +4218,7 @@ int main() {
 					
 ; return 0; }
 EOF
-if { (eval echo configure:4170: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4222: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ol_cv_thread_flag=yes
 else
@@ -4188,18 +4240,70 @@ echo "$ac_t""$ol_cv_thread_flag" 1>&6
 			fi
 		fi
 
+		if test $ol_link_threads = no ; then
+						save_LIBS="$LIBS"
+			echo $ac_n "checking for pthread_mutex_unlock in -lpthreads""... $ac_c" 1>&6
+echo "configure:4247: checking for pthread_mutex_unlock in -lpthreads" >&5
+ac_lib_var=`echo pthreads'_'pthread_mutex_unlock | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'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 4255 "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:4266: \"$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"
+				if test $ol_with_yielding_select = auto ; then
+					ol_with_yielding_select=yes
+				fi
+				
+else
+  echo "$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""... $ac_c" 1>&6
-echo "configure:4195: checking for pthread_mutex_lock in -lpthreads" >&5
+echo "configure:4299: checking for pthread_mutex_lock in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_mutex_lock | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
-LIBS="-lpthreads -lexc $LIBS"
+LIBS="-lpthreads -lmach -lexc $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4203 "configure"
+#line 4307 "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
@@ -4210,7 +4314,7 @@ int main() {
 pthread_mutex_lock()
 ; return 0; }
 EOF
-if { (eval echo configure:4214: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4318: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4227,7 +4331,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lexc"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
@@ -4242,27 +4346,27 @@ 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:4247: checking for pthread_mutex_unlock in -lpthreads" >&5
-ac_lib_var=`echo pthreads'_'pthread_mutex_unlock | sed 'y%./+-%__p_%'`
+			echo $ac_n "checking for pthread_mutex_trylock in -lpthreads""... $ac_c" 1>&6
+echo "configure:4351: checking for pthread_mutex_trylock in -lpthreads" >&5
+ac_lib_var=`echo pthreads'_'pthread_mutex_trylock | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
-LIBS="-lpthreads -lmach -lexc -lc_r $LIBS"
+LIBS="-lpthreads -lexc $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4255 "configure"
+#line 4359 "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();
+char pthread_mutex_trylock();
 
 int main() {
-pthread_mutex_unlock()
+pthread_mutex_trylock()
 ; return 0; }
 EOF
-if { (eval echo configure:4266: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4370: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4279,7 +4383,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc -lc_r"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lexc"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
@@ -4305,12 +4409,12 @@ EOF
 												for ac_func in sched_yield pthread_yield
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4309: checking for $ac_func" >&5
+echo "configure:4413: 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 4314 "configure"
+#line 4418 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4333,7 +4437,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4337: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4441: \"$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
@@ -4361,7 +4465,7 @@ 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""... $ac_c" 1>&6
-echo "configure:4365: checking for sched_yield in -lrt" >&5
+echo "configure:4469: checking for sched_yield in -lrt" >&5
 ac_lib_var=`echo rt'_'sched_yield | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4369,7 +4473,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lrt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4373 "configure"
+#line 4477 "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
@@ -4380,7 +4484,7 @@ int main() {
 sched_yield()
 ; return 0; }
 EOF
-if { (eval echo configure:4384: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4488: \"$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
@@ -4412,12 +4516,12 @@ fi
 												for ac_func in thr_yield
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4416: checking for $ac_func" >&5
+echo "configure:4520: 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 4421 "configure"
+#line 4525 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4440,7 +4544,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4444: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4548: \"$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
@@ -4474,12 +4578,12 @@ done
 						for ac_func in pthread_kill pthread_detach
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4478: checking for $ac_func" >&5
+echo "configure:4582: 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 4483 "configure"
+#line 4587 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4502,7 +4606,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4506: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4610: \"$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
@@ -4539,12 +4643,12 @@ done
 			
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4543: checking for $ac_func" >&5
+echo "configure:4647: 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 4548 "configure"
+#line 4652 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4567,7 +4671,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4571: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4675: \"$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
@@ -4593,7 +4697,7 @@ done
 
 
 			echo $ac_n "checking if pthread_create() works""... $ac_c" 1>&6
-echo "configure:4597: checking if pthread_create() works" >&5
+echo "configure:4701: checking if pthread_create() works" >&5
 			if eval "test \"`echo '$''{'ol_cv_pthread_create_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4602,7 +4706,7 @@ else
   				ol_cv_pthread_create_works=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 4606 "configure"
+#line 4710 "configure"
 #include "confdefs.h"
 
 #include <pthread.h>
@@ -4625,7 +4729,7 @@ int main(argc, argv)
 }
 
 EOF
-if { (eval echo configure:4629: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4733: \"$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
@@ -4647,7 +4751,7 @@ fi
 
 						if test $ol_with_yielding_select = auto ; then
 				echo $ac_n "checking if select yields when using pthreads""... $ac_c" 1>&6
-echo "configure:4651: checking if select yields when using pthreads" >&5
+echo "configure:4755: checking if select yields when using pthreads" >&5
 				if eval "test \"`echo '$''{'ol_cv_pthread_select_yields'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4657,7 +4761,7 @@ else
 				{ echo "configure: error: crossing compiling: use --with-yielding_select=yes|no|manual" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 4661 "configure"
+#line 4765 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -4729,7 +4833,7 @@ int main(argc, argv)
 	exit(2);
 }
 EOF
-if { (eval echo configure:4733: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4837: \"$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
@@ -4769,17 +4873,17 @@ if test $ol_with_threads = auto -o $ol_with_threads = yes \
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4773: checking for $ac_hdr" >&5
+echo "configure:4877: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4778 "configure"
+#line 4882 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4783: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4887: \"$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*
@@ -4809,12 +4913,12 @@ done
 		ol_with_threads=found
 
 				echo $ac_n "checking for cthread_fork""... $ac_c" 1>&6
-echo "configure:4813: checking for cthread_fork" >&5
+echo "configure:4917: checking for cthread_fork" >&5
 if eval "test \"`echo '$''{'ac_cv_func_cthread_fork'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4818 "configure"
+#line 4922 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char cthread_fork(); below.  */
@@ -4837,7 +4941,7 @@ cthread_fork();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4841: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4945: \"$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
@@ -4859,7 +4963,7 @@ fi
 
 		if test $ol_link_threads = no ; then
 									echo $ac_n "checking for cthread_fork with -all_load""... $ac_c" 1>&6
-echo "configure:4863: checking for cthread_fork with -all_load" >&5
+echo "configure:4967: checking for cthread_fork with -all_load" >&5
 if eval "test \"`echo '$''{'ol_cv_cthread_all_load'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4867,7 +4971,7 @@ else
 								save_LIBS="$LIBS"
 				LIBS="-all_load $LIBS"
 				cat > conftest.$ac_ext <<EOF
-#line 4871 "configure"
+#line 4975 "configure"
 #include "confdefs.h"
 #include <mach/cthreads.h>
 int main() {
@@ -4876,7 +4980,7 @@ int main() {
 					
 ; return 0; }
 EOF
-if { (eval echo configure:4880: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4984: \"$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
@@ -4921,17 +5025,17 @@ if test $ol_with_threads = auto -o $ol_with_threads = yes \
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4925: checking for $ac_hdr" >&5
+echo "configure:5029: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4930 "configure"
+#line 5034 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4935: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5039: \"$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*
@@ -4959,7 +5063,7 @@ done
 
 	if test $ac_cv_header_thread_h = yes -a $ac_cv_header_synch_h = yes ; then
 		echo $ac_n "checking for thr_create in -lthread""... $ac_c" 1>&6
-echo "configure:4963: checking for thr_create in -lthread" >&5
+echo "configure:5067: checking for thr_create in -lthread" >&5
 ac_lib_var=`echo thread'_'thr_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4967,7 +5071,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4971 "configure"
+#line 5075 "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
@@ -4978,7 +5082,7 @@ int main() {
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:4982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5086: \"$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
@@ -5018,12 +5122,12 @@ EOF
 			
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5022: checking for $ac_func" >&5
+echo "configure:5126: 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 5027 "configure"
+#line 5131 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5046,7 +5150,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5050: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5154: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5077,17 +5181,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5081: checking for $ac_hdr" >&5
+echo "configure:5185: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5086 "configure"
+#line 5190 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5091: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5195: \"$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*
@@ -5115,7 +5219,7 @@ done
 
 	if test $ac_cv_header_lwp_lwp_h = yes ; then
 		echo $ac_n "checking for lwp_create in -llwp""... $ac_c" 1>&6
-echo "configure:5119: checking for lwp_create in -llwp" >&5
+echo "configure:5223: checking for lwp_create in -llwp" >&5
 ac_lib_var=`echo lwp'_'lwp_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5123,7 +5227,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-llwp  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5127 "configure"
+#line 5231 "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
@@ -5134,7 +5238,7 @@ int main() {
 lwp_create()
 ; return 0; }
 EOF
-if { (eval echo configure:5138: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5242: \"$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
@@ -5187,17 +5291,17 @@ if test $ol_with_threads = manual ; then
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5191: checking for $ac_hdr" >&5
+echo "configure:5295: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5196 "configure"
+#line 5300 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5201: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5305: \"$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*
@@ -5226,12 +5330,12 @@ done
 	for ac_func in sched_yield pthread_yield
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5230: checking for $ac_func" >&5
+echo "configure:5334: 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 5235 "configure"
+#line 5339 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5254,7 +5358,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5258: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5362: \"$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
@@ -5280,7 +5384,7 @@ done
 
 	
 echo $ac_n "checking for LinuxThreads""... $ac_c" 1>&6
-echo "configure:5284: checking for LinuxThreads" >&5
+echo "configure:5388: checking for LinuxThreads" >&5
 if eval "test \"`echo '$''{'ol_cv_linux_threads'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5301,17 +5405,17 @@ echo "$ac_t""$ol_cv_linux_threads" 1>&6
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5305: checking for $ac_hdr" >&5
+echo "configure:5409: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5310 "configure"
+#line 5414 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5315: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5419: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5341,17 +5445,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5345: checking for $ac_hdr" >&5
+echo "configure:5449: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5350 "configure"
+#line 5454 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5355: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5459: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5381,17 +5485,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5385: checking for $ac_hdr" >&5
+echo "configure:5489: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5390 "configure"
+#line 5494 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5395: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5499: \"$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*
@@ -5446,13 +5550,13 @@ EOF
 
 
 					echo $ac_n "checking for thread specific errno""... $ac_c" 1>&6
-echo "configure:5450: checking for thread specific errno" >&5
+echo "configure:5554: checking for thread specific errno" >&5
 if eval "test \"`echo '$''{'ol_cv_errno_thread_specific'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		cat > conftest.$ac_ext <<EOF
-#line 5456 "configure"
+#line 5560 "configure"
 #include "confdefs.h"
 
 #include <errno.h>
@@ -5463,7 +5567,7 @@ int x = errno;
 			
 ; return 0; }
 EOF
-if { (eval echo configure:5467: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5571: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ol_cv_errno_thread_specific=yes
 else
@@ -5505,13 +5609,13 @@ fi
 ol_link_ldbm=no 
 if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = db2 ; then
 	echo $ac_n "checking for DB2 library""... $ac_c" 1>&6
-echo "configure:5509: checking for DB2 library" >&5
+echo "configure:5613: checking for DB2 library" >&5
 if eval "test \"`echo '$''{'ol_cv_lib_db2'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   	ol_LIBS="$LIBS"
 	echo $ac_n "checking for db_open in -ldb""... $ac_c" 1>&6
-echo "configure:5515: checking for db_open in -ldb" >&5
+echo "configure:5619: checking for db_open in -ldb" >&5
 ac_lib_var=`echo db'_'db_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5519,7 +5623,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldb  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5523 "configure"
+#line 5627 "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
@@ -5530,7 +5634,7 @@ int main() {
 db_open()
 ; return 0; }
 EOF
-if { (eval echo configure:5534: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5638: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5561,17 +5665,17 @@ for ac_hdr in db.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5565: checking for $ac_hdr" >&5
+echo "configure:5669: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5570 "configure"
+#line 5674 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5575: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5679: \"$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*
@@ -5599,13 +5703,13 @@ done
 
 if test $ac_cv_header_db_h = yes ; then
 	echo $ac_n "checking if db.h is DB2""... $ac_c" 1>&6
-echo "configure:5603: checking if db.h is DB2" >&5
+echo "configure:5707: checking if db.h is DB2" >&5
 if eval "test \"`echo '$''{'ol_cv_header_db2'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		cat > conftest.$ac_ext <<EOF
-#line 5609 "configure"
+#line 5713 "configure"
 #include "confdefs.h"
 
 #			include <db.h>
@@ -5637,7 +5741,7 @@ fi
 
  
  echo $ac_n "checking for Berkeley DB2""... $ac_c" 1>&6
-echo "configure:5641: checking for Berkeley DB2" >&5
+echo "configure:5745: checking for Berkeley DB2" >&5
 if eval "test \"`echo '$''{'ol_cv_berkeley_db2'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5683,18 +5787,18 @@ fi
 
 if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = db ; then
 	echo $ac_n "checking for Berkeley DB library""... $ac_c" 1>&6
-echo "configure:5687: checking for Berkeley DB library" >&5
+echo "configure:5791: checking for Berkeley DB library" >&5
 if eval "test \"`echo '$''{'ol_cv_lib_db'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   	ol_LIBS="$LIBS"
 	echo $ac_n "checking for dbopen""... $ac_c" 1>&6
-echo "configure:5693: checking for dbopen" >&5
+echo "configure:5797: checking for dbopen" >&5
 if eval "test \"`echo '$''{'ac_cv_func_dbopen'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5698 "configure"
+#line 5802 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char dbopen(); below.  */
@@ -5717,7 +5821,7 @@ dbopen();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5721: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5825: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_dbopen=yes"
 else
@@ -5736,7 +5840,7 @@ else
   echo "$ac_t""no" 1>&6
 
 		echo $ac_n "checking for dbopen in -ldb""... $ac_c" 1>&6
-echo "configure:5740: checking for dbopen in -ldb" >&5
+echo "configure:5844: checking for dbopen in -ldb" >&5
 ac_lib_var=`echo db'_'dbopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5744,7 +5848,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldb  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5748 "configure"
+#line 5852 "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
@@ -5755,7 +5859,7 @@ int main() {
 dbopen()
 ; return 0; }
 EOF
-if { (eval echo configure:5759: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5863: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5790,17 +5894,17 @@ for ac_hdr in db_185.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5794: checking for $ac_hdr" >&5
+echo "configure:5898: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5799 "configure"
+#line 5903 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5804: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5908: \"$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*
@@ -5836,7 +5940,7 @@ fi
 
  
  echo $ac_n "checking for Berkeley DB""... $ac_c" 1>&6
-echo "configure:5840: checking for Berkeley DB" >&5
+echo "configure:5944: checking for Berkeley DB" >&5
 if eval "test \"`echo '$''{'ol_cv_berkeley_db'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5889,17 +5993,17 @@ if test $ol_with_ldbm_api = manual ; then
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5893: checking for $ac_hdr" >&5
+echo "configure:5997: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5898 "configure"
+#line 6002 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5903: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6007: \"$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*
@@ -5934,18 +6038,18 @@ fi
 
 if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = gdbm ; then
 	echo $ac_n "checking for GDBM library""... $ac_c" 1>&6
-echo "configure:5938: checking for GDBM library" >&5
+echo "configure:6042: checking for GDBM library" >&5
 if eval "test \"`echo '$''{'ol_cv_lib_gdbm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   	ol_LIBS="$LIBS"
 	echo $ac_n "checking for gdbm_open""... $ac_c" 1>&6
-echo "configure:5944: checking for gdbm_open" >&5
+echo "configure:6048: checking for gdbm_open" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gdbm_open'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5949 "configure"
+#line 6053 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gdbm_open(); below.  */
@@ -5968,7 +6072,7 @@ gdbm_open();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5972: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6076: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gdbm_open=yes"
 else
@@ -5987,7 +6091,7 @@ else
   echo "$ac_t""no" 1>&6
 
 		echo $ac_n "checking for gdbm_open in -lgdbm""... $ac_c" 1>&6
-echo "configure:5991: checking for gdbm_open in -lgdbm" >&5
+echo "configure:6095: checking for gdbm_open in -lgdbm" >&5
 ac_lib_var=`echo gdbm'_'gdbm_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5995,7 +6099,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lgdbm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5999 "configure"
+#line 6103 "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
@@ -6006,7 +6110,7 @@ int main() {
 gdbm_open()
 ; return 0; }
 EOF
-if { (eval echo configure:6010: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6114: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6041,17 +6145,17 @@ echo "$ac_t""$ol_cv_lib_gdbm" 1>&6
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:6045: checking for $ac_hdr" >&5
+echo "configure:6149: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6050 "configure"
+#line 6154 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6055: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6159: \"$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*
@@ -6078,7 +6182,7 @@ fi
 done
 
  echo $ac_n "checking for db""... $ac_c" 1>&6
-echo "configure:6082: checking for db" >&5
+echo "configure:6186: checking for db" >&5
 if eval "test \"`echo '$''{'ol_cv_gdbm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6114,18 +6218,18 @@ if test $ol_with_ldbm_api = auto ; then
 	echo "configure: warning: skipping automatic checking for NDBM, must be manually enabled." 1>&2
 elif test $ol_with_ldbm_api = ndbm ; then
 	echo $ac_n "checking for NDBM library""... $ac_c" 1>&6
-echo "configure:6118: checking for NDBM library" >&5
+echo "configure:6222: checking for NDBM library" >&5
 if eval "test \"`echo '$''{'ol_cv_lib_ndbm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   	ol_LIBS="$LIBS"
 	echo $ac_n "checking for dbm_open""... $ac_c" 1>&6
-echo "configure:6124: checking for dbm_open" >&5
+echo "configure:6228: checking for dbm_open" >&5
 if eval "test \"`echo '$''{'ac_cv_func_dbm_open'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6129 "configure"
+#line 6233 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char dbm_open(); below.  */
@@ -6148,7 +6252,7 @@ dbm_open();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6152: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6256: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_dbm_open=yes"
 else
@@ -6167,7 +6271,7 @@ else
   echo "$ac_t""no" 1>&6
 
 		echo $ac_n "checking for dbm_open in -lndbm""... $ac_c" 1>&6
-echo "configure:6171: checking for dbm_open in -lndbm" >&5
+echo "configure:6275: checking for dbm_open in -lndbm" >&5
 ac_lib_var=`echo ndbm'_'dbm_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6175,7 +6279,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lndbm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6179 "configure"
+#line 6283 "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
@@ -6186,7 +6290,7 @@ int main() {
 dbm_open()
 ; return 0; }
 EOF
-if { (eval echo configure:6190: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6294: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6206,7 +6310,7 @@ else
   echo "$ac_t""no" 1>&6
 
 			echo $ac_n "checking for dbm_open in -ldbm""... $ac_c" 1>&6
-echo "configure:6210: checking for dbm_open in -ldbm" >&5
+echo "configure:6314: checking for dbm_open in -ldbm" >&5
 ac_lib_var=`echo dbm'_'dbm_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6214,7 +6318,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldbm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6218 "configure"
+#line 6322 "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
@@ -6225,7 +6329,7 @@ int main() {
 dbm_open()
 ; return 0; }
 EOF
-if { (eval echo configure:6229: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6333: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6262,17 +6366,17 @@ echo "$ac_t""$ol_cv_lib_ndbm" 1>&6
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:6266: checking for $ac_hdr" >&5
+echo "configure:6370: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6271 "configure"
+#line 6375 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6276: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6380: \"$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*
@@ -6299,7 +6403,7 @@ fi
 done
 
  echo $ac_n "checking for db""... $ac_c" 1>&6
-echo "configure:6303: checking for db" >&5
+echo "configure:6407: checking for db" >&5
 if eval "test \"`echo '$''{'ol_cv_ndbm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6346,17 +6450,17 @@ if test $ol_enable_wrappers != no ; then
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:6350: checking for $ac_hdr" >&5
+echo "configure:6454: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6355 "configure"
+#line 6459 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6360: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6464: \"$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*
@@ -6387,7 +6491,7 @@ done
 		have_wrappers=no
 	else
 		echo $ac_n "checking for main in -lwrap""... $ac_c" 1>&6
-echo "configure:6391: checking for main in -lwrap" >&5
+echo "configure:6495: checking for main in -lwrap" >&5
 ac_lib_var=`echo wrap'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6395,14 +6499,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lwrap  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6399 "configure"
+#line 6503 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:6406: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6510: \"$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
@@ -6447,17 +6551,17 @@ if test $ol_enable_dmalloc != no ; then
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:6451: checking for $ac_hdr" >&5
+echo "configure:6555: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6456 "configure"
+#line 6560 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6461: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6565: \"$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*
@@ -6484,7 +6588,7 @@ fi
 done
 
 	echo $ac_n "checking for dmalloc_shutdown in -ldmalloc""... $ac_c" 1>&6
-echo "configure:6488: checking for dmalloc_shutdown in -ldmalloc" >&5
+echo "configure:6592: checking for dmalloc_shutdown in -ldmalloc" >&5
 ac_lib_var=`echo dmalloc'_'dmalloc_shutdown | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6492,7 +6596,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldmalloc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6496 "configure"
+#line 6600 "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
@@ -6503,7 +6607,7 @@ int main() {
 dmalloc_shutdown()
 ; return 0; }
 EOF
-if { (eval echo configure:6507: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6611: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6538,17 +6642,17 @@ for ac_hdr in termcap.h ncurses.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:6542: checking for $ac_hdr" >&5
+echo "configure:6646: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6547 "configure"
+#line 6651 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6552: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6656: \"$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*
@@ -6577,7 +6681,7 @@ done
 
 if test $ol_link_termcap = no ; then
 	echo $ac_n "checking for tputs in -ltermcap""... $ac_c" 1>&6
-echo "configure:6581: checking for tputs in -ltermcap" >&5
+echo "configure:6685: checking for tputs in -ltermcap" >&5
 ac_lib_var=`echo termcap'_'tputs | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6585,7 +6689,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ltermcap  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6589 "configure"
+#line 6693 "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
@@ -6596,7 +6700,7 @@ int main() {
 tputs()
 ; return 0; }
 EOF
-if { (eval echo configure:6600: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6704: \"$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
@@ -6629,7 +6733,7 @@ fi
 
 if test $ol_link_termcap = no ; then
 	echo $ac_n "checking for initscr in -lncurses""... $ac_c" 1>&6
-echo "configure:6633: checking for initscr in -lncurses" >&5
+echo "configure:6737: checking for initscr in -lncurses" >&5
 ac_lib_var=`echo ncurses'_'initscr | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6637,7 +6741,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lncurses  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6641 "configure"
+#line 6745 "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
@@ -6648,7 +6752,7 @@ int main() {
 initscr()
 ; return 0; }
 EOF
-if { (eval echo configure:6652: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6756: \"$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
@@ -6690,12 +6794,12 @@ fi
 # FreeBSD (and others) have crypt(3) in -lcrypt
 if test $ol_enable_crypt != no ; then
 	echo $ac_n "checking for crypt""... $ac_c" 1>&6
-echo "configure:6694: checking for crypt" >&5
+echo "configure:6798: checking for crypt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_crypt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6699 "configure"
+#line 6803 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char crypt(); below.  */
@@ -6718,7 +6822,7 @@ crypt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6722: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6826: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_crypt=yes"
 else
@@ -6737,7 +6841,7 @@ else
   echo "$ac_t""no" 1>&6
 
 		echo $ac_n "checking for crypt in -lcrypt""... $ac_c" 1>&6
-echo "configure:6741: checking for crypt in -lcrypt" >&5
+echo "configure:6845: checking for crypt in -lcrypt" >&5
 ac_lib_var=`echo crypt'_'crypt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6745,7 +6849,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcrypt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6749 "configure"
+#line 6853 "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
@@ -6756,7 +6860,7 @@ int main() {
 crypt()
 ; return 0; }
 EOF
-if { (eval echo configure:6760: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6864: \"$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
@@ -6800,12 +6904,12 @@ fi
 # FreeBSD (and others) have setproctitle(3) in -lutil
 if test $ol_enable_proctitle != no ; then
 	echo $ac_n "checking for setproctitle""... $ac_c" 1>&6
-echo "configure:6804: checking for setproctitle" >&5
+echo "configure:6908: checking for setproctitle" >&5
 if eval "test \"`echo '$''{'ac_cv_func_setproctitle'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6809 "configure"
+#line 6913 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char setproctitle(); below.  */
@@ -6828,7 +6932,7 @@ setproctitle();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6832: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6936: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_setproctitle=yes"
 else
@@ -6847,7 +6951,7 @@ else
   echo "$ac_t""no" 1>&6
 
 		echo $ac_n "checking for setproctitle in -lutil""... $ac_c" 1>&6
-echo "configure:6851: checking for setproctitle in -lutil" >&5
+echo "configure:6955: checking for setproctitle in -lutil" >&5
 ac_lib_var=`echo util'_'setproctitle | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6855,7 +6959,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lutil  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6859 "configure"
+#line 6963 "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
@@ -6866,7 +6970,7 @@ int main() {
 setproctitle()
 ; return 0; }
 EOF
-if { (eval echo configure:6870: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6974: \"$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
@@ -6901,12 +7005,12 @@ EOF
 fi
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:6905: checking for ANSI C header files" >&5
+echo "configure:7009: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6910 "configure"
+#line 7014 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -6914,7 +7018,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6918: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7022: \"$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*
@@ -6931,7 +7035,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 6935 "configure"
+#line 7039 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -6949,7 +7053,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 6953 "configure"
+#line 7057 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -6970,7 +7074,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 6974 "configure"
+#line 7078 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -6981,7 +7085,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:6985: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7089: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -7014,12 +7118,12 @@ for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr that defines DIR""... $ac_c" 1>&6
-echo "configure:7018: checking for $ac_hdr that defines DIR" >&5
+echo "configure:7122: checking for $ac_hdr that defines DIR" >&5
 if eval "test \"`echo '$''{'ac_cv_header_dirent_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7023 "configure"
+#line 7127 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -7027,7 +7131,7 @@ int main() {
 DIR *dirp = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:7031: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7135: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_header_dirent_$ac_safe=yes"
 else
@@ -7052,7 +7156,7 @@ done
 # Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
 if test $ac_header_dirent = dirent.h; then
 echo $ac_n "checking for opendir in -ldir""... $ac_c" 1>&6
-echo "configure:7056: checking for opendir in -ldir" >&5
+echo "configure:7160: checking for opendir in -ldir" >&5
 ac_lib_var=`echo dir'_'opendir | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7060,7 +7164,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldir  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7064 "configure"
+#line 7168 "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
@@ -7071,7 +7175,7 @@ int main() {
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:7075: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7179: \"$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
@@ -7093,7 +7197,7 @@ fi
 
 else
 echo $ac_n "checking for opendir in -lx""... $ac_c" 1>&6
-echo "configure:7097: checking for opendir in -lx" >&5
+echo "configure:7201: checking for opendir in -lx" >&5
 ac_lib_var=`echo x'_'opendir | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7101,7 +7205,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7105 "configure"
+#line 7209 "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
@@ -7112,7 +7216,7 @@ int main() {
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:7116: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7220: \"$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
@@ -7135,12 +7239,12 @@ fi
 fi
 
 echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
-echo "configure:7139: checking for sys/wait.h that is POSIX.1 compatible" >&5
+echo "configure:7243: checking for sys/wait.h that is POSIX.1 compatible" >&5
 if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7144 "configure"
+#line 7248 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -7156,7 +7260,7 @@ wait (&s);
 s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
 ; return 0; }
 EOF
-if { (eval echo configure:7160: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7264: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_sys_wait_h=yes
 else
@@ -7177,12 +7281,12 @@ EOF
 fi
 
 echo $ac_n "checking POSIX termios""... $ac_c" 1>&6
-echo "configure:7181: checking POSIX termios" >&5
+echo "configure:7285: checking POSIX termios" >&5
 if eval "test \"`echo '$''{'am_cv_sys_posix_termios'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7186 "configure"
+#line 7290 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <unistd.h>
@@ -7192,7 +7296,7 @@ int main() {
    tcgetattr(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:7196: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7300: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_sys_posix_termios=yes
 else
@@ -7208,7 +7312,7 @@ echo "$ac_t""$am_cv_sys_posix_termios" 1>&6
 
 
  echo $ac_n "checking whether use of TIOCGWINSZ requires sys/ioctl.h""... $ac_c" 1>&6
-echo "configure:7212: checking whether use of TIOCGWINSZ requires sys/ioctl.h" >&5
+echo "configure:7316: checking whether use of TIOCGWINSZ requires sys/ioctl.h" >&5
 if eval "test \"`echo '$''{'am_cv_sys_tiocgwinsz_needs_sys_ioctl_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7217,7 +7321,7 @@ else
   gwinsz_in_termios_h=no
   if test $am_cv_sys_posix_termios = yes; then
     cat > conftest.$ac_ext <<EOF
-#line 7221 "configure"
+#line 7325 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #     include <termios.h>
@@ -7237,7 +7341,7 @@ rm -f conftest*
 
   if test $gwinsz_in_termios_h = no; then
     cat > conftest.$ac_ext <<EOF
-#line 7241 "configure"
+#line 7345 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #     include <sys/ioctl.h>
@@ -7307,17 +7411,17 @@ for ac_hdr in \
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:7311: checking for $ac_hdr" >&5
+echo "configure:7415: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7316 "configure"
+#line 7420 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7321: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7425: \"$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*
@@ -7345,12 +7449,12 @@ done
 
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:7349: checking for uid_t in sys/types.h" >&5
+echo "configure:7453: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7354 "configure"
+#line 7458 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -7379,7 +7483,7 @@ EOF
 fi
 
 echo $ac_n "checking type of array argument to getgroups""... $ac_c" 1>&6
-echo "configure:7383: checking type of array argument to getgroups" >&5
+echo "configure:7487: checking type of array argument to getgroups" >&5
 if eval "test \"`echo '$''{'ac_cv_type_getgroups'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7387,7 +7491,7 @@ else
   ac_cv_type_getgroups=cross
 else
   cat > conftest.$ac_ext <<EOF
-#line 7391 "configure"
+#line 7495 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Rendell for this test.  */
@@ -7412,7 +7516,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:7416: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7520: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
     ac_cv_type_getgroups=gid_t
 else
@@ -7426,7 +7530,7 @@ fi
 
 if test $ac_cv_type_getgroups = cross; then
         cat > conftest.$ac_ext <<EOF
-#line 7430 "configure"
+#line 7534 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 EOF
@@ -7449,12 +7553,12 @@ cat >> confdefs.h <<EOF
 EOF
 
  echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:7453: checking for mode_t" >&5
+echo "configure:7557: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7458 "configure"
+#line 7562 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -7482,12 +7586,12 @@ EOF
 fi
 
 echo $ac_n "checking for off_t""... $ac_c" 1>&6
-echo "configure:7486: checking for off_t" >&5
+echo "configure:7590: checking for off_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7491 "configure"
+#line 7595 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -7515,12 +7619,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:7519: checking for pid_t" >&5
+echo "configure:7623: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7524 "configure"
+#line 7628 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -7548,19 +7652,19 @@ EOF
 fi
 
 echo $ac_n "checking for ptrdiff_t""... $ac_c" 1>&6
-echo "configure:7552: checking for ptrdiff_t" >&5
+echo "configure:7656: checking for ptrdiff_t" >&5
 if eval "test \"`echo '$''{'am_cv_type_ptrdiff_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7557 "configure"
+#line 7661 "configure"
 #include "confdefs.h"
 #include <stddef.h>
 int main() {
 ptrdiff_t p
 ; return 0; }
 EOF
-if { (eval echo configure:7564: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7668: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   am_cv_type_ptrdiff_t=yes
 else
@@ -7581,12 +7685,12 @@ EOF
    fi
 
 echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
-echo "configure:7585: checking return type of signal handlers" >&5
+echo "configure:7689: checking return type of signal handlers" >&5
 if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7590 "configure"
+#line 7694 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -7603,7 +7707,7 @@ int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:7607: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7711: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_type_signal=void
 else
@@ -7622,12 +7726,12 @@ EOF
 
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:7626: checking for size_t" >&5
+echo "configure:7730: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7631 "configure"
+#line 7735 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -7655,12 +7759,12 @@ EOF
 fi
 
 echo $ac_n "checking for st_blksize in struct stat""... $ac_c" 1>&6
-echo "configure:7659: checking for st_blksize in struct stat" >&5
+echo "configure:7763: checking for st_blksize in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blksize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7664 "configure"
+#line 7768 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -7668,7 +7772,7 @@ int main() {
 struct stat s; s.st_blksize;
 ; return 0; }
 EOF
-if { (eval echo configure:7672: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7776: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blksize=yes
 else
@@ -7689,12 +7793,12 @@ EOF
 fi
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:7693: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:7797: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7698 "configure"
+#line 7802 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -7703,7 +7807,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:7707: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7811: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -7724,12 +7828,12 @@ EOF
 fi
 
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:7728: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:7832: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7733 "configure"
+#line 7837 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -7737,7 +7841,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:7741: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7845: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -7760,7 +7864,7 @@ fi
 
 
 echo $ac_n "checking if toupper() requires islower()""... $ac_c" 1>&6
-echo "configure:7764: checking if toupper() requires islower()" >&5
+echo "configure:7868: checking if toupper() requires islower()" >&5
 if eval "test \"`echo '$''{'ol_cv_c_upper_lower'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7769,7 +7873,7 @@ else
   ol_cv_c_upper_lower=safe
 else
   cat > conftest.$ac_ext <<EOF
-#line 7773 "configure"
+#line 7877 "configure"
 #include "confdefs.h"
 
 #include <ctype.h>
@@ -7781,7 +7885,7 @@ main()
 		exit(1);
 }
 EOF
-if { (eval echo configure:7785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7889: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ol_cv_c_upper_lower=no
 else
@@ -7804,12 +7908,12 @@ EOF
 fi
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:7808: checking for working const" >&5
+echo "configure:7912: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7813 "configure"
+#line 7917 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -7858,7 +7962,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:7862: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7966: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -7886,14 +7990,14 @@ EOF
 
 else
 	echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:7890: checking whether byte ordering is bigendian" >&5
+echo "configure:7994: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_bigendian=unknown
 # See if sys/param.h defines the BYTE_ORDER macro.
 cat > conftest.$ac_ext <<EOF
-#line 7897 "configure"
+#line 8001 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -7904,11 +8008,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:7908: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8012: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   # It does; now see whether it defined to BIG_ENDIAN or not.
 cat > conftest.$ac_ext <<EOF
-#line 7912 "configure"
+#line 8016 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -7919,7 +8023,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:7923: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8027: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -7939,7 +8043,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 7943 "configure"
+#line 8047 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -7952,7 +8056,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:7956: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8060: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_bigendian=no
 else
@@ -7976,7 +8080,7 @@ EOF
 fi
 
 	echo $ac_n "checking size of short""... $ac_c" 1>&6
-echo "configure:7980: checking size of short" >&5
+echo "configure:8084: checking size of short" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_short'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7984,7 +8088,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 7988 "configure"
+#line 8092 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -7995,7 +8099,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7999: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8103: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_short=`cat conftestval`
 else
@@ -8015,7 +8119,7 @@ EOF
 
  
 	echo $ac_n "checking size of int""... $ac_c" 1>&6
-echo "configure:8019: checking size of int" >&5
+echo "configure:8123: checking size of int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8023,7 +8127,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 8027 "configure"
+#line 8131 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -8034,7 +8138,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:8038: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8142: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_int=`cat conftestval`
 else
@@ -8054,7 +8158,7 @@ EOF
 
  
 	echo $ac_n "checking size of long""... $ac_c" 1>&6
-echo "configure:8058: checking size of long" >&5
+echo "configure:8162: checking size of long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8062,7 +8166,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 8066 "configure"
+#line 8170 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -8073,7 +8177,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:8077: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8181: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long=`cat conftestval`
 else
@@ -8095,7 +8199,7 @@ EOF
 fi
 
 echo $ac_n "checking for 8-bit clean memcmp""... $ac_c" 1>&6
-echo "configure:8099: checking for 8-bit clean memcmp" >&5
+echo "configure:8203: checking for 8-bit clean memcmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_memcmp_clean'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8103,7 +8207,7 @@ else
   ac_cv_func_memcmp_clean=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 8107 "configure"
+#line 8211 "configure"
 #include "confdefs.h"
 
 main()
@@ -8113,7 +8217,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:8117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:8221: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_memcmp_clean=yes
 else
@@ -8131,12 +8235,12 @@ echo "$ac_t""$ac_cv_func_memcmp_clean" 1>&6
 test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
 
 echo $ac_n "checking for strftime""... $ac_c" 1>&6
-echo "configure:8135: checking for strftime" >&5
+echo "configure:8239: checking for strftime" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strftime'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8140 "configure"
+#line 8244 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strftime(); below.  */
@@ -8159,7 +8263,7 @@ strftime();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8163: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8267: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strftime=yes"
 else
@@ -8181,7 +8285,7 @@ else
   echo "$ac_t""no" 1>&6
 # strftime is in -lintl on SCO UNIX.
 echo $ac_n "checking for strftime in -lintl""... $ac_c" 1>&6
-echo "configure:8185: checking for strftime in -lintl" >&5
+echo "configure:8289: checking for strftime in -lintl" >&5
 ac_lib_var=`echo intl'_'strftime | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -8189,7 +8293,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lintl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 8193 "configure"
+#line 8297 "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
@@ -8200,7 +8304,7 @@ int main() {
 strftime()
 ; return 0; }
 EOF
-if { (eval echo configure:8204: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8308: \"$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
@@ -8227,12 +8331,12 @@ fi
 fi
 
 echo $ac_n "checking for vprintf""... $ac_c" 1>&6
-echo "configure:8231: checking for vprintf" >&5
+echo "configure:8335: checking for vprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8236 "configure"
+#line 8340 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vprintf(); below.  */
@@ -8255,7 +8359,7 @@ vprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8259: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8363: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_vprintf=yes"
 else
@@ -8279,12 +8383,12 @@ fi
 
 if test "$ac_cv_func_vprintf" != yes; then
 echo $ac_n "checking for _doprnt""... $ac_c" 1>&6
-echo "configure:8283: checking for _doprnt" >&5
+echo "configure:8387: checking for _doprnt" >&5
 if eval "test \"`echo '$''{'ac_cv_func__doprnt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8288 "configure"
+#line 8392 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char _doprnt(); below.  */
@@ -8307,7 +8411,7 @@ _doprnt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8311: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8415: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func__doprnt=yes"
 else
@@ -8336,12 +8440,12 @@ if test $ac_cv_func_vprintf = yes ; then
 		for ac_func in vsnprintf vsprintf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8340: checking for $ac_func" >&5
+echo "configure:8444: 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 8345 "configure"
+#line 8449 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8364,7 +8468,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8368: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8472: \"$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
@@ -8421,12 +8525,12 @@ for ac_func in \
 
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8425: checking for $ac_func" >&5
+echo "configure:8529: 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 8430 "configure"
+#line 8534 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8449,7 +8553,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8453: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8557: \"$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
@@ -8477,12 +8581,12 @@ done
 for ac_func in getopt strdup tempnam
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8481: checking for $ac_func" >&5
+echo "configure:8585: 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 8486 "configure"
+#line 8590 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8505,7 +8609,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8509: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8613: \"$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
@@ -8535,13 +8639,13 @@ done
 # Check Configuration
 
 echo $ac_n "checking declaration of sys_errlist""... $ac_c" 1>&6
-echo "configure:8539: checking declaration of sys_errlist" >&5
+echo "configure:8643: checking declaration of sys_errlist" >&5
 if eval "test \"`echo '$''{'ol_cv_dcl_sys_errlist'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	cat > conftest.$ac_ext <<EOF
-#line 8545 "configure"
+#line 8649 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
@@ -8551,7 +8655,7 @@ int main() {
 char *c = (char *) *sys_errlist
 ; return 0; }
 EOF
-if { (eval echo configure:8555: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8659: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ol_cv_dcl_sys_errlist=yes
 else
@@ -8572,20 +8676,20 @@ if test $ol_cv_dcl_sys_errlist = no ; then
 EOF
 
 	echo $ac_n "checking existence of sys_errlist""... $ac_c" 1>&6
-echo "configure:8576: checking existence of sys_errlist" >&5
+echo "configure:8680: checking existence of sys_errlist" >&5
 	if eval "test \"`echo '$''{'ol_cv_have_sys_errlist'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		cat > conftest.$ac_ext <<EOF
-#line 8582 "configure"
+#line 8686 "configure"
 #include "confdefs.h"
 #include <errno.h>
 int main() {
 char *c = (char *) *sys_errlist
 ; return 0; }
 EOF
-if { (eval echo configure:8589: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8693: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ol_cv_have_sys_errlist=yes
 else
diff --git a/configure.in b/configure.in
index 47d5f1191a..9b1cab5ff0 100644
--- a/configure.in
+++ b/configure.in
@@ -405,20 +405,22 @@ if test $ol_with_threads = auto -o $ol_with_threads = yes \
 		dnl 4)	pthread_create() with -thread (?)
 		dnl
 		dnl Check pthread (final) libraries
-		dnl 5)	pthread_mutex_lock() in -lpthread -lexc (OSF/1)
-		dnl 6)	pthread_mutex_unlock() in -lpthread -lmach -lexc -lc_r (OSF/1)
-		dnl 7)	pthread_create() in -lpthread (many)
-		dnl 8)	pthread_create() in -lc_r (FreeBSD)
-		dnl 9)	pthread_create() in -lpthreads (many)
-		dnl 10)	pthread_join() -Wl,-woff,85 -lpthreads (IRIX)
-		dnl 11)	pthread_create() in HP-UX -lpthread (HP-UX 11)
+		dnl 5)	pthread_mutex_unlock() in -lpthread -lmach -lexc -lc_r (OSF/1)
+		dnl 6)	pthread_mutex_lock() in -lpthread -lmach -lexc (OSF/1)
+		dnl 7)	pthread_mutex_trylock() in -lpthread -lexc (OSF/1)
+		dnl 8)	pthread_create() in -lpthread (many)
+		dnl 9)	pthread_create() in -lc_r (FreeBSD)
+		dnl 10)	pthread_create() in -lpthreads (many)
+		dnl 11)	pthread_join() -Wl,-woff,85 -lpthreads (IRIX)
+		dnl 12)	pthread_create() in HP-UX -lpthread (HP-UX 11)
 		dnl
 		dnl Check pthread (draft4) flags (to be depreciated)
-		dnl 12)	pthread_create() with -threads (OSF/1)
+		dnl 13)	pthread_create() with -threads (OSF/1)
 		dnl
 		dnl Check pthread (final) libraries (to be depreciated)
-		dnl 13)	pthread_mutex_lock() in -lpthreads -lexc (OSF/1)
 		dnl 14)	pthread_mutex_unlock() in -lpthreads -lmach -lexc -lc_r (OSF/1)
+		dnl 14)	pthread_mutex_lock() in -lpthreads -lmach -lexc (OSF/1)
+		dnl 14)	pthread_mutex_trylock() in -lpthreads -lexc (OSF/1)
 		dnl
 
 		dnl pthread_create in $LIBS
@@ -505,28 +507,41 @@ if test $ol_with_threads = auto -o $ol_with_threads = yes \
 		fi
 
 		if test $ol_link_threads = no ; then
-			dnl try DEC Threads -lpthread -lexc
+			dnl try DEC Threads -lpthread -lmach -lexc -lc_r
+			save_LIBS="$LIBS"
+			AC_CHECK_LIB(pthread, pthread_mutex_unlock, [
+				ol_link_threads=posix
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc -lc_r"
+				if test $ol_with_yielding_select = auto ; then
+					ol_with_yielding_select=yes
+				fi
+				],:,[-lmach -lexc -lc_r])
+			LIBS="$save_LIBS"
+		fi
+
+		if test $ol_link_threads = no ; then
+			dnl try DEC Threads -lpthread -lmach -lexc
 			save_LIBS="$LIBS"
 			AC_CHECK_LIB(pthread, pthread_mutex_lock, [
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lexc"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
-				],:,[-lexc])
+				],:,[-lmach -lexc])
 			LIBS="$save_LIBS"
 		fi
 
 		if test $ol_link_threads = no ; then
-			dnl try DEC Threads -lpthread -lmach -lexc -lc_r
+			dnl try DEC Threads -lpthread -lexc
 			save_LIBS="$LIBS"
-			AC_CHECK_LIB(pthread, pthread_mutex_unlock, [
+			AC_CHECK_LIB(pthread, pthread_mutex_trylock, [
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lmach -lexc -lc_r"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthread -lexc"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
-				],:,[-lmach -lexc -lc_r])
+				],:,[-lexc])
 			LIBS="$save_LIBS"
 		fi
 
@@ -620,28 +635,41 @@ if test $ol_with_threads = auto -o $ol_with_threads = yes \
 		fi
 
 		if test $ol_link_threads = no ; then
-			dnl try DEC Threads -lpthreads -lexc
+			dnl try DEC Threads -lpthreads -lmach -lexc -lc_r
+			save_LIBS="$LIBS"
+			AC_CHECK_LIB(pthreads, pthread_mutex_unlock, [
+				ol_link_threads=posix
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc -lc_r"
+				if test $ol_with_yielding_select = auto ; then
+					ol_with_yielding_select=yes
+				fi
+				],:,[-lmach -lexc -lc_r])
+			LIBS="$save_LIBS"
+		fi
+
+		if test $ol_link_threads = no ; then
+			dnl try DEC Threads -lpthreads -lmach -lexc
 			save_LIBS="$LIBS"
 			AC_CHECK_LIB(pthreads, pthread_mutex_lock, [
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lexc"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
-				],:,[-lexc])
+				],:,[-lmach -lexc])
 			LIBS="$save_LIBS"
 		fi
 
 		if test $ol_link_threads = no ; then
-			dnl try DEC Threads -lpthreads -lmach -lexc -lc_r
+			dnl try DEC Threads -lpthreads -lexc
 			save_LIBS="$LIBS"
-			AC_CHECK_LIB(pthreads, pthread_mutex_unlock, [
+			AC_CHECK_LIB(pthreads, pthread_mutex_trylock, [
 				ol_link_threads=posix
-				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lmach -lexc -lc_r"
+				LTHREAD_LIBS="$LTHREAD_LIBS -lpthreads -lexc"
 				if test $ol_with_yielding_select = auto ; then
 					ol_with_yielding_select=yes
 				fi
-				],:,[-lmach -lexc -lc_r])
+				],:,[-lexc])
 			LIBS="$save_LIBS"
 		fi