In libobjc/:

       * objc/objc.h (__GNU_LIBOBJC__): New #define providing an easy way
        to check the API version.  Added some comments.

        * objc-private/common.h: New file.
        * NXConstStr.m: Include objc-private/common.h.
        * Object.m: Same change.
        * Protocol.m: Same change.
        * archive.c: Same change.
        * class.c: Same change.
        * encoding.c: Same change.
        * exception.c: Same change.
        * gc.c: Same change.
        * hash.c: Same change.
        * init.c: Same change.
        * libobjc_entry.c: Same change.
        * linking.m: Same change.
        * misc.c: Same change (and added a comment).
        * nil_method.c: Same change.
        * objects.c: Same change.
        * sarray.c: Same change.
        * selector.c: Same change.
        * sendmsg.c: Same change.
        * thr.c: Same change.

From-SVN: r164218

22 files changed, 103 insertions, 5 deletions

diff --git a/libobjc/ChangeLog b/libobjc/ChangeLog
index 7830d06..0fdcb6e 100644
--- a/libobjc/ChangeLog
+++ b/libobjc/ChangeLog
@@ -1,3 +1,29 @@
+2010-09-12  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	* objc/objc.h (__GNU_LIBOBJC__): New #define providing an easy way
+	to check the API version.  Added some comments.
+
+	* objc-private/common.h: New file.
+	* NXConstStr.m: Include objc-private/common.h.
+	* Object.m: Same change.
+	* Protocol.m: Same change.
+	* archive.c: Same change.
+	* class.c: Same change.
+	* encoding.c: Same change.
+	* exception.c: Same change.
+	* gc.c: Same change.
+	* hash.c: Same change.
+	* init.c: Same change.
+	* libobjc_entry.c: Same change.
+	* linking.m: Same change.
+	* misc.c: Same change (and added a comment).
+	* nil_method.c: Same change.
+	* objects.c: Same change.
+	* sarray.c: Same change.
+	* selector.c: Same change.
+	* sendmsg.c: Same change.
+	* thr.c: Same change.
+
 2010-09-11  Nicola Pero  <nicola.pero@meta-innovation.com>
 
 	* objc/objc-api.h: Removed obsolete #ifdef for NeXTSTEP.
diff --git a/libobjc/NXConstStr.m b/libobjc/NXConstStr.m
index 92281f6..7ff553b 100644
--- a/libobjc/NXConstStr.m
+++ b/libobjc/NXConstStr.m
@@ -23,6 +23,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */ 
 
+#include "objc-private/common.h"
 #include "objc/NXConstStr.h"
 
 @implementation NXConstantString
diff --git a/libobjc/Object.m b/libobjc/Object.m
index 377f059..3a5bcb3 100644
--- a/libobjc/Object.m
+++ b/libobjc/Object.m
@@ -22,6 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #include <stdarg.h>
 #include <errno.h>
 #include "objc/Object.h"
diff --git a/libobjc/Protocol.m b/libobjc/Protocol.m
index 9fa7f92..49b7b3a 100644
--- a/libobjc/Protocol.m
+++ b/libobjc/Protocol.m
@@ -22,6 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */ 
 
+#include "objc-private/common.h"
 #include "objc/Protocol.h"
 #include "objc/objc-api.h"
 
diff --git a/libobjc/archive.c b/libobjc/archive.c
index 87d5ad8..6603ab1 100644
--- a/libobjc/archive.c
+++ b/libobjc/archive.c
@@ -22,6 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #include "tconfig.h"
 #include "objc/objc.h"
 #include "objc/objc-api.h"
diff --git a/libobjc/class.c b/libobjc/class.c
index c86cbb4..37b2b4e 100644
--- a/libobjc/class.c
+++ b/libobjc/class.c
@@ -87,6 +87,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   classes from the table - and the difficult thing with lock-free data
   structures is freeing data when is removed from the structures.  */
 
+#include "objc-private/common.h"
 #include "objc/objc.h"
 #include "objc/objc-api.h"
 #include "objc/thr.h"
diff --git a/libobjc/encoding.c b/libobjc/encoding.c
index c743d86..5694530 100644
--- a/libobjc/encoding.c
+++ b/libobjc/encoding.c
@@ -27,6 +27,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 /* FIXME: This file has no business including tm.h.  */
 
+#include "objc-private/common.h"
 #include "tconfig.h"
 #include "coretypes.h"
 #include "tm.h"
diff --git a/libobjc/exception.c b/libobjc/exception.c
index 210beae..bb6a919 100644
--- a/libobjc/exception.c
+++ b/libobjc/exception.c
@@ -22,6 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #include <stdlib.h>
 #include "config.h"
 #include "objc/objc-api.h"
diff --git a/libobjc/gc.c b/libobjc/gc.c
index 70b3af4..a67ba1c 100644
--- a/libobjc/gc.c
+++ b/libobjc/gc.c
@@ -23,6 +23,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #include "tconfig.h"
 #include "objc/objc.h"
 #include "objc/encoding.h"
diff --git a/libobjc/hash.c b/libobjc/hash.c
index 697f2e1..9e0a608 100644
--- a/libobjc/hash.c
+++ b/libobjc/hash.c
@@ -22,6 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #include "assert.h"
 
 #include "objc/objc.h"
diff --git a/libobjc/init.c b/libobjc/init.c
index ea6ab38..75e0b103 100644
--- a/libobjc/init.c
+++ b/libobjc/init.c
@@ -24,6 +24,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #include "objc/objc.h"
 #include "objc/objc-api.h"
 #include "objc/thr.h"
diff --git a/libobjc/libobjc_entry.c b/libobjc/libobjc_entry.c
index 13e4749..5cbc89c 100644
--- a/libobjc/libobjc_entry.c
+++ b/libobjc/libobjc_entry.c
@@ -23,7 +23,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-
+#include "objc-private/common.h"
 #include <windows.h>
 
 /*
diff --git a/libobjc/linking.m b/libobjc/linking.m
index fa31bdf..6372e91 100644
--- a/libobjc/linking.m
+++ b/libobjc/linking.m
@@ -23,7 +23,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-
+#include "objc-private/common.h"
 #include <objc/Object.h>
 #include <objc/NXConstStr.h>
 
diff --git a/libobjc/misc.c b/libobjc/misc.c
index e67f345..fde1f30 100644
--- a/libobjc/misc.c
+++ b/libobjc/misc.c
@@ -24,9 +24,15 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 
+/* __USE_FIXED_PROTOTYPES__ used to be required to get prototypes for
+   malloc, free, etc. on some platforms.  It is unclear if we still
+   need it, but it can't hurt.
+*/
 #define __USE_FIXED_PROTOTYPES__
 #include <stdlib.h>
+
 #include "objc/objc.h"
 #include "objc/objc-api.h"
 #include "objc-private/runtime.h"
diff --git a/libobjc/nil_method.c b/libobjc/nil_method.c
index a5364ea..752115f 100644
--- a/libobjc/nil_method.c
+++ b/libobjc/nil_method.c
@@ -26,6 +26,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 /* This is the nil method, the function that is called when the receiver
    of a method is nil */
 
+#include "objc-private/common.h"
 #include "objc/objc.h"
 
 /* When the receiver of a method invocation is nil, the runtime
diff --git a/libobjc/objc-private/common.h b/libobjc/objc-private/common.h
new file mode 100644
index 0000000..1642faa
--- /dev/null
+++ b/libobjc/objc-private/common.h
@@ -0,0 +1,38 @@
+/* GNU Objective C Runtime Common Private Definitions
+   Copyright (C) 2010 Free Software Foundation, Inc.
+   Contributed by Nicola Pero
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3, or (at your option) any later version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __objc_private_common_INCLUDE_GNU
+#define __objc_private_common_INCLUDE_GNU
+
+/* This file contains definitions that should be included by all .c
+   and .m files in libobjc.
+*/
+
+/* This variable allows the public headers to determine when they are
+   being included by a file inside libobjc itself, or when they are
+   being included by an external file.
+*/
+#define GNU_LIBOBJC_COMPILING_LIBOBJC_ITSELF 1
+
+#endif /* __objc_private_common_INCLUDE_GNU */
diff --git a/libobjc/objc/objc.h b/libobjc/objc/objc.h
index 17ae49b..6c3214f 100644
--- a/libobjc/objc/objc.h
+++ b/libobjc/objc/objc.h
@@ -26,12 +26,27 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #ifndef __objc_INCLUDE_GNU
 #define __objc_INCLUDE_GNU
 
+/* This file contains the definition of the basic types used by the
+   Objective-C language.  It needs to be included to do almost
+   anything with Objective-C.
+*/
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include <stddef.h>
 
+/* The current version of the GNU Objective-C Runtime library in
+   compressed ISO date format.  This should be updated any time a new
+   version is released with changes to the public API (there is no
+   need to update it if there were no API changes since the previous
+   release).  This macro is only defined starting with the GNU
+   Objective-C Runtime shipped with GCC 4.6.0.  If it is not defined,
+   it is either an older version of the runtime, or another runtime.
+*/
+#define __GNU_LIBOBJC__ 20100911
+
 /*
   Definition of the boolean type.
 
diff --git a/libobjc/objects.c b/libobjc/objects.c
index fcfce1e..0743af4 100644
--- a/libobjc/objects.c
+++ b/libobjc/objects.c
@@ -22,7 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-
+#include "objc-private/common.h"
 #include "tconfig.h"         /* include defs of bzero for target */
 #include "objc/objc.h"
 #include "objc/objc-api.h"
diff --git a/libobjc/sarray.c b/libobjc/sarray.c
index 79172ea..dd140c7 100644
--- a/libobjc/sarray.c
+++ b/libobjc/sarray.c
@@ -22,7 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-
+#include "objc-private/common.h"
 #include "objc/sarray.h"
 #include "objc/objc.h"
 #include "objc/objc-api.h"
diff --git a/libobjc/selector.c b/libobjc/selector.c
index 1b61141..52b6ba1 100644
--- a/libobjc/selector.c
+++ b/libobjc/selector.c
@@ -22,7 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-
+#include "objc-private/common.h"
 #include "objc/objc.h"
 #include "objc/objc-api.h"
 #include "objc/thr.h"
diff --git a/libobjc/sendmsg.c b/libobjc/sendmsg.c
index 682fbe1..3bf28b9 100644
--- a/libobjc/sendmsg.c
+++ b/libobjc/sendmsg.c
@@ -28,6 +28,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 /* FIXME: This should be using libffi instead of __builtin_apply
    and friends.  */
 
+#include "objc-private/common.h"
 #include "tconfig.h"
 #include "coretypes.h"
 #include "tm.h"
diff --git a/libobjc/thr.c b/libobjc/thr.c
index 5b39ada..0a58536 100644
--- a/libobjc/thr.c
+++ b/libobjc/thr.c
@@ -22,6 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
+#include "objc-private/common.h"
 #define _LIBOBJC
 /* The line below is needed for declarations of functions such as
    pthread_mutexattr_settype, without which gthr-posix.h may fail to