From aeac221ff6b69201d8808c8d4ab9e89c5ffc5de0 Mon Sep 17 00:00:00 2001
From: theraven <theraven@72102866-910b-0410-8b05-ffd578937521>
Date: Sun, 7 Nov 2010 14:48:21 +0000
Subject: [PATCH] Added defines for __weak and __strong.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@31591 72102866-910b-0410-8b05-ffd578937521
---
 Headers/Additions/GNUstepBase/preface.h.in | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Headers/Additions/GNUstepBase/preface.h.in b/Headers/Additions/GNUstepBase/preface.h.in
index e1791af16..8e6b1338b 100644
--- a/Headers/Additions/GNUstepBase/preface.h.in
+++ b/Headers/Additions/GNUstepBase/preface.h.in
@@ -113,6 +113,13 @@
  #include <objc/encoding.h>
 #endif
 
+// Include the blocks runtime header if it's available (It shouldn't matter
+// that this doesn't work on compilers that don't support __has_include(),
+// because they also don't support blocks).
+#if __has_include(<objc/block_runtime.h>)
+#  include <objc/block_runtime.h>
+#endif
+
 /*
  * Hack for older compiler versions that don't have all defines
  * needed in  objc-api.h
@@ -221,4 +228,12 @@
 #include <stdint.h>
 #endif
 
+#if __has_feature(objc_gc)
+#define __strong __attribute__((objc_gc(strong)))
+#define __weak __attribute__((objc_gc(weak)))
+#else
+#define __strong 
+#define __weak 
+#endif
+
 #endif /* __preface_h_OBJECTS_INCLUDE */