backport configure updates from trunk

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/branches/stable@25122 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,23 @@
+2007-05-02  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	* configure.ac: Set GNUSTEP_MAKEFILES to CURRENT_GNUSTEP_MAKEFILES
+	before sourcing GNUstep.sh.  Fixes building when paths to hardcode
+	in the library are different from paths used when building,
+	typically a case when packaging. (backport from trunk)
+	* configure: regenerate
+
+2007-04-28  Richard Frith-Macdonald <rfm@gnu.org>
+
+        * Source/thr-pthread.m: Set thread attributes detached to avoid memory
+	leak as suggested by Chris Ball <cball@borderlinetech.ca>
+	(backport from trunk)
+
+2007-04-16  Richard Frith-Macdonald <rfm@gnu.org>
+
+        * config/config.forward2.m: Test for forward2 function in runtime.
+	* configure.ac: Run forward2 test
+	* Headers/Additions/GNUstepBase/config.h.in: record forward2 test.
+
 2007-04-15  Richard Frith-Macdonald <rfm@gnu.org>
 
 	* configure.ac: check for wide character support in printf

Headers/Additions/GNUstepBase/config.h.in

@@ -196,6 +196,9 @@
 /* Define to 1 if you have the <float.h> header file. */
 #undef HAVE_FLOAT_H
 
+/* Define if libobjc has the __objc_msg_forward2 function */
+#undef HAVE_FORWARD2
+
 /* Define to 1 if you have the `getcwd' function. */
 #undef HAVE_GETCWD
 

Source/thr-pthread.m

@@ -32,6 +32,7 @@ Boston, MA 02110-1301, USA.  */
 
 /* Key structure for maintaining thread specific storage */
 static pthread_key_t _objc_thread_storage;
+static pthread_attr_t _objc_thread_attribs;
 
 /* Global exit status. */
 int __objc_thread_exit_status = 0;
@@ -188,7 +189,21 @@ int
 __objc_init_thread_system(void)
 {
   /* Initialize the thread storage key */
-  return pthread_key_create(&_objc_thread_storage, NULL);
+  if (pthread_key_create(&_objc_thread_storage, NULL) == 0)
+    {
+      /*
+       * The normal default detach state for threads is PTHREAD_CREATE_JOINABLE
+       * which causes threads to not die when you think they should.
+	   */
+      if (pthread_attr_init(&_objc_thread_attribs) == 0)
+        {
+          if (pthread_attr_setdetachstate(&_objc_thread_attribs, 
+                                          PTHREAD_CREATE_DETACHED) == 0)
+            return 0;
+        }
+    }
+
+  return -1;
 }
 
 /* Close the threads subsystem. */
@@ -196,11 +211,15 @@ int
 __objc_close_thread_system(void)
 {
   /* Destroy the thread storage key */
-  /* Not implemented yet */
+  if (pthread_key_delete(_objc_thread_storage) == 0)
-  /* return pthread_key_delete(&_objc_thread_storage); */
+    {
+      if (pthread_attr_destroy(&_objc_thread_attribs) == 0)
         return 0;
     }
 
+  return -1;
+}
+
 /* Backend thread functions */
 
 /* Create a new thread of execution. */
@@ -210,7 +229,8 @@ __objc_thread_detach(void (*func)(void *arg), void *arg)
   objc_thread_t thread_id;
   pthread_t new_thread_handle;
 
-  if (!(pthread_create(&new_thread_handle, NULL, (void *)func, arg)))
+  if (!(pthread_create(&new_thread_handle, &_objc_thread_attribs,
+ 	 (void *)func, arg)))
       thread_id = *(objc_thread_t *)&new_thread_handle;
   else
     thread_id = NULL;

config/config.forward2.m

@@ -0,0 +1,7 @@
+#include <objc/objc-api.h>
+
+int main (void)
+{
+  IMP (*__objc_msg_forward1)(id,SEL) = __objc_msg_forward2;
+  return 0;
+}

configure.ac

@@ -802,11 +802,12 @@ AC_DEFINE_UNQUOTED(GNUSTEP_TARGET_LOCAL_USERS_DIR,
 # ask it to output all variables!  That way we have access to (eg)
 # GNUSTEP_SYSTEM_HEADERS below.
 #
-# We need to unles any values that we really need, or existing settings
+# We need to unset any values that we really need, or existing settings
 # would be used by GNUstep.sh
 #
 unset GNUSTEP_SYSTEM_HEADERS
 unset GNUSTEP_SYSTEM_LIBRARIES
+GNUSTEP_MAKEFILES="$CURRENT_GNUSTEP_MAKEFILES"
 GNUSTEP_SH_EXPORT_ALL_VARIABLES=yes
 . "$CURRENT_GNUSTEP_MAKEFILES/GNUstep.sh"
 unset GNUSTEP_SH_EXPORT_ALL_VARIABLES
@@ -1862,8 +1863,15 @@ have_forward_hook=yes
 saved_CPPFLAGS="$CPPFLAGS"
 CPPFLAGS="$CPPFLAGS $OBJCFLAGS -x objective-c"
 AC_MSG_CHECKING(for forwarding callback in runtime)
+AC_COMPILE_IFELSE([#include "$srcdir/config/config.forward2.m"],
+	have_forward_hook=yes, have_forward_hook=no)
+if test $have_forward_hook = yes; then
+  AC_DEFINE(HAVE_FORWARD2,1,
+            [Define if libobjc has the __objc_msg_forward2 function])
+else
   AC_COMPILE_IFELSE([#include "$srcdir/config/config.forward.m"],
 	have_forward_hook=yes, have_forward_hook=no)
+fi
 AC_MSG_RESULT($have_forward_hook)
 if test $have_forward_hook = no; then
   enable_libffi=no