From 08ee61e920fa7010087aa09cff9f822b8caf8aa5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Karsten=20Ball=C3=BCder?= <ballueder@usa.net>
Date: Thu, 8 Apr 1999 20:52:29 +0000
Subject: [PATCH] Removed check for pthread-0.7 on Linux which causes problems
 on some glibc2 systems and break static linkage.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2073 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 configure    | 100 ++++++++++++++-------------------------------------
 configure.in |  13 +++----
 2 files changed, 31 insertions(+), 82 deletions(-)

diff --git a/configure b/configure
index 62b9e436f2..092e29f150 100755
--- a/configure
+++ b/configure
@@ -7622,50 +7622,8 @@ UNIX_THREAD=""
 
 if test "$wxUSE_THREADS" = "1"; then
     
-        echo $ac_n "checking for pthread_create in -lpthread-0.7""... $ac_c" 1>&6
-echo "configure:7627: checking for pthread_create in -lpthread-0.7" >&5
-ac_lib_var=`echo pthread-0.7'_'pthread_create | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  ac_save_LIBS="$LIBS"
-LIBS="-lpthread-0.7  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 7635 "configure"
-#include "confdefs.h"
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char pthread_create();
-
-int main() {
-pthread_create()
-; return 0; }
-EOF
-if { (eval echo configure:7646: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$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
-  
-        UNIX_THREAD="unix/threadpsx.cpp"
-        THREADS_LINK="pthread-0.7"
-    
-else
-  echo "$ac_t""no" 1>&6
-
                 echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:7669: checking for pthread_create in -lpthread" >&5
+echo "configure:7627: checking for pthread_create in -lpthread" >&5
 ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7673,7 +7631,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7677 "configure"
+#line 7635 "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
@@ -7684,7 +7642,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:7688: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:7646: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7707,7 +7665,7 @@ else
   echo "$ac_t""no" 1>&6
 
                         echo $ac_n "checking for pthread_create in -lc_r""... $ac_c" 1>&6
-echo "configure:7711: checking for pthread_create in -lc_r" >&5
+echo "configure:7669: checking for pthread_create in -lc_r" >&5
 ac_lib_var=`echo c_r'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7715,7 +7673,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7719 "configure"
+#line 7677 "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
@@ -7726,7 +7684,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:7730: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:7688: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7750,17 +7708,17 @@ else
 
                                 ac_safe=`echo "sys/prctl.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for sys/prctl.h""... $ac_c" 1>&6
-echo "configure:7754: checking for sys/prctl.h" >&5
+echo "configure:7712: checking for sys/prctl.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7759 "configure"
+#line 7717 "configure"
 #include "confdefs.h"
 #include <sys/prctl.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7764: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7722: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7789,10 +7747,6 @@ fi
         
 fi
 
-    
-fi
-
-
     if test "$THREADS_LINK" != ""; then
         cat >> confdefs.h <<\EOF
 #define wxUSE_THREADS 1
@@ -7814,17 +7768,17 @@ if test "$wxUSE_THREADS" = "1"; then
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:7818: checking for $ac_hdr" >&5
+echo "configure:7772: 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 7823 "configure"
+#line 7777 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7828: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7782: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7852,7 +7806,7 @@ done
 
 
   echo $ac_n "checking for sched_yield in -l$THREADS_LINK""... $ac_c" 1>&6
-echo "configure:7856: checking for sched_yield in -l$THREADS_LINK" >&5
+echo "configure:7810: checking for sched_yield in -l$THREADS_LINK" >&5
 ac_lib_var=`echo $THREADS_LINK'_'sched_yield | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7860,7 +7814,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l$THREADS_LINK  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7864 "configure"
+#line 7818 "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
@@ -7871,7 +7825,7 @@ int main() {
 sched_yield()
 ; return 0; }
 EOF
-if { (eval echo configure:7875: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:7829: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7893,7 +7847,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for sched_yield in -l"posix4"""... $ac_c" 1>&6
-echo "configure:7897: checking for sched_yield in -l"posix4"" >&5
+echo "configure:7851: checking for sched_yield in -l"posix4"" >&5
 ac_lib_var=`echo "posix4"'_'sched_yield | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7901,7 +7855,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l"posix4"  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7905 "configure"
+#line 7859 "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
@@ -7912,7 +7866,7 @@ int main() {
 sched_yield()
 ; return 0; }
 EOF
-if { (eval echo configure:7916: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:7870: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7942,7 +7896,7 @@ fi
 
 
                 echo $ac_n "checking for pthread_attr_getschedpolicy in -l$THREADS_LINK""... $ac_c" 1>&6
-echo "configure:7946: checking for pthread_attr_getschedpolicy in -l$THREADS_LINK" >&5
+echo "configure:7900: checking for pthread_attr_getschedpolicy in -l$THREADS_LINK" >&5
 ac_lib_var=`echo $THREADS_LINK'_'pthread_attr_getschedpolicy | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7950,7 +7904,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l$THREADS_LINK  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7954 "configure"
+#line 7908 "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
@@ -7961,7 +7915,7 @@ int main() {
 pthread_attr_getschedpolicy()
 ; return 0; }
 EOF
-if { (eval echo configure:7965: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:7919: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7983,7 +7937,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for pthread_attr_getschedpolicy in -l"posix4"""... $ac_c" 1>&6
-echo "configure:7987: checking for pthread_attr_getschedpolicy in -l"posix4"" >&5
+echo "configure:7941: checking for pthread_attr_getschedpolicy in -l"posix4"" >&5
 ac_lib_var=`echo "posix4"'_'pthread_attr_getschedpolicy | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7991,7 +7945,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l"posix4"  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7995 "configure"
+#line 7949 "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
@@ -8002,7 +7956,7 @@ int main() {
 pthread_attr_getschedpolicy()
 ; return 0; }
 EOF
-if { (eval echo configure:8006: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:7960: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -8032,7 +7986,7 @@ fi
 
 
   echo $ac_n "checking for pthread_cancel in -l$THREADS_LINK""... $ac_c" 1>&6
-echo "configure:8036: checking for pthread_cancel in -l$THREADS_LINK" >&5
+echo "configure:7990: checking for pthread_cancel in -l$THREADS_LINK" >&5
 ac_lib_var=`echo $THREADS_LINK'_'pthread_cancel | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -8040,7 +7994,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l$THREADS_LINK  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 8044 "configure"
+#line 7998 "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
@@ -8051,7 +8005,7 @@ int main() {
 pthread_cancel()
 ; return 0; }
 EOF
-if { (eval echo configure:8055: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:8009: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
diff --git a/configure.in b/configure.in
index 273f96eee1..12d8ca1af3 100644
--- a/configure.in
+++ b/configure.in
@@ -1494,13 +1494,10 @@ UNIX_THREAD=""
 if test "$wxUSE_THREADS" = "1"; then
     dnl find if POSIX threads are available
 
-    dnl For glibc 2 users who have the old libc 5 too check pthread-0.7 first
-    AC_CHECK_LIB(pthread-0.7, pthread_create, [
-        UNIX_THREAD="unix/threadpsx.cpp"
-        THREADS_LINK="pthread-0.7"
-    ],[
-        dnl standard lib name is pthread
-        AC_CHECK_LIB(pthread, pthread_create, [
+    dnl standard lib name is pthread
+    dnl We no longer test for pthread-0.7 as it breaks compilation on some
+    dnl glibc2 systems, especially for static linkage.
+    AC_CHECK_LIB(pthread, pthread_create, [
             UNIX_THREAD="unix/threadpsx.cpp"
             THREADS_LINK="pthread"
         ], [
@@ -1515,8 +1512,6 @@ if test "$wxUSE_THREADS" = "1"; then
                 ])
             ])
         ])
-    ])
-
     if test "$THREADS_LINK" != ""; then
         AC_DEFINE(wxUSE_THREADS)
     else
-- 
2.45.2