More tweaks for garbage collection mode, including making NSNotificationCenter use weak pointers (things are never removed if it uses strong pointers because they remove themselves in the -dealloc method, which is never called, and can't remove themselves in the -finalize method because the -finalize method would not be called until after they have been removed - this is consistent with Apple behaviour).

Gorm now works correctly when built with GC enabled.



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33109 72102866-910b-0410-8b05-ffd578937521

Source/NSNotificationCenter.m

@@ -142,7 +142,7 @@ struct	NCTbl;		/* Notification Center Table structure	*/
  */
 
 typedef	struct	Obs {
-  id		observer;	/* Object to receive message.	*/
+  __weak id	observer;	/* Object to receive message.	*/
   SEL		selector;	/* Method selector.		*/
   IMP		method;		/* Method implementation.	*/
   struct Obs	*next;		/* Next item in linked list.	*/