From 5f433f0ef4f283b7d5a76cafd22dc8a9d5ac1bcd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Mon, 5 May 2003 05:05:30 +0000
Subject: [PATCH] Patch #732234: Check for -Kthread.

---
 configure    | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 configure.in | 39 +++++++++++++++++++++++++++
 2 files changed, 113 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 1c678bc3020..d5cc892b361 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.404 .
+# From configure.in Revision: 1.405 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53 for python 2.3.
 #
@@ -3878,6 +3878,68 @@ echo "$as_me:$LINENO: result: $ac_cv_kpthread" >&5
 echo "${ECHO_T}$ac_cv_kpthread" >&6
 fi
 
+if test $ac_cv_kpthread = no
+then
+# -Kthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -Kthread,
+# so we need to run a program to see whether it really made the
+# function available.
+echo "$as_me:$LINENO: checking whether $CC accepts -Kthread" >&5
+echo $ECHO_N "checking whether $CC accepts -Kthread... $ECHO_C" >&6
+if test "${ac_cv_kthread+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_save_cc="$CC"
+CC="$CC -Kthread"
+if test "$cross_compiling" = yes; then
+  ac_cv_kthread=no
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  (void)pthread_detach(p);
+  return 0;
+}
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_kthread=yes
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_kthread=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+CC="$ac_save_cc"
+fi
+
+echo "$as_me:$LINENO: result: $ac_cv_kthread" >&5
+echo "${ECHO_T}$ac_cv_kthread" >&6
+fi
+
 
 # checks for header files
 echo "$as_me:$LINENO: checking for ANSI C header files" >&5
@@ -9128,6 +9190,8 @@ _ACEOF
 ac_save_cc="$CC"
 if test "$ac_cv_kpthread" = "yes"
 then CC="$CC -Kpthread"
+elif test "$ac_cv_kthread" = "yes"
+then CC="$CC -Kthread"
 fi
 echo "$as_me:$LINENO: checking for pthread_t" >&5
 echo $ECHO_N "checking for pthread_t... $ECHO_C" >&6
@@ -10135,6 +10199,15 @@ then
     CC="$CC -Kpthread"
     cat >>confdefs.h <<\_ACEOF
 #define WITH_THREAD 1
+_ACEOF
+
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"
+elif test "$ac_cv_kthread" = "yes"
+then
+    CC="$CC -Kthread"
+    cat >>confdefs.h <<\_ACEOF
+#define WITH_THREAD 1
 _ACEOF
 
     posix_threads=yes
diff --git a/configure.in b/configure.in
index 9db7f4325c0..fdda1f75145 100644
--- a/configure.in
+++ b/configure.in
@@ -752,6 +752,37 @@ CC="$ac_save_cc"])
 AC_MSG_RESULT($ac_cv_kpthread)
 fi
 
+if test $ac_cv_kpthread = no
+then
+# -Kthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -Kthread,
+# so we need to run a program to see whether it really made the
+# function available.
+AC_MSG_CHECKING(whether $CC accepts -Kthread)
+AC_CACHE_VAL(ac_cv_kthread,
+[ac_save_cc="$CC"
+CC="$CC -Kthread"
+AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  (void)pthread_detach(p);
+  return 0;
+}
+],
+  ac_cv_kthread=yes,
+  ac_cv_kthread=no,
+  ac_cv_kthread=no)
+CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_cv_kthread)
+fi
+
 dnl # check for ANSI or K&R ("traditional") preprocessor
 dnl AC_MSG_CHECKING(for C preprocessor type)
 dnl AC_TRY_COMPILE([
@@ -940,6 +971,8 @@ AC_DEFINE_UNQUOTED(SIZEOF_TIME_T, $ac_cv_sizeof_time_t,
 ac_save_cc="$CC"
 if test "$ac_cv_kpthread" = "yes"
 then CC="$CC -Kpthread"
+elif test "$ac_cv_kthread" = "yes"
+then CC="$CC -Kthread"
 fi
 AC_MSG_CHECKING(for pthread_t)
 have_pthread_t=no
@@ -1367,6 +1400,12 @@ then
     AC_DEFINE(WITH_THREAD)
     posix_threads=yes
     THREADOBJ="Python/thread.o"
+elif test "$ac_cv_kthread" = "yes"
+then
+    CC="$CC -Kthread"
+    AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"
 else
     if test ! -z "$with_threads" -a -d "$with_threads"
     then LDFLAGS="$LDFLAGS -L$with_threads"