$OpenBSD$

Make it compatible with newer gnustep-base again

--- sope-core/NGExtensions/NGObjCRuntime.m.orig	Mon Jul  3 21:34:05 2006
+++ sope-core/NGExtensions/NGObjCRuntime.m	Thu Aug 19 19:57:31 2010
@@ -49,9 +49,9 @@ typedef struct objc_method      *Method_t;
 #if GNUSTEP_BASE_LIBRARY
 /* this is a hack for the extensions 0.8.6 library */
 
-void class_add_behavior(Class class, Class behavior) {
-  extern void behavior_class_add_class (Class class, Class behavior);
-  behavior_class_add_class(class, behavior);
+void class_add_behavior(Class receiver, Class behavior) {
+  extern void GSObjCAddClassBehavior (Class receiver, Class behavior);
+  GSObjCAddClassBehavior(receiver, behavior);
 }
 
 #endif