From e7ab10611f35a85632f90902a4ebac4edf32e67f Mon Sep 17 00:00:00 2001
From: theraven <theraven@72102866-910b-0410-8b05-ffd578937521>
Date: Sun, 19 Aug 2012 09:17:12 +0000
Subject: [PATCH] ARC fix for blocks.

---
 arc.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arc.m b/arc.m
index b8c6d7c..9b95c2f 100644
--- a/arc.m
+++ b/arc.m
@@ -17,6 +17,7 @@ pthread_key_t ARCThreadKey;
 #endif
 
 extern void _NSConcreteMallocBlock;
+extern void _NSConcreteStackBlock;
 extern void _NSConcreteGlobalBlock;
 
 @interface NSAutoreleasePool
@@ -167,7 +168,8 @@ static inline id retain(id obj)
 {
 	if (isSmallObject(obj)) { return obj; }
 	Class cls = obj->isa;
-	if ((Class)&_NSConcreteMallocBlock == cls)
+	if ((Class)&_NSConcreteMallocBlock == cls ||
+	    (Class)&_NSConcreteStackBlock == cls)
 	{
 		return Block_copy(obj);
 	}