Index: src/runtime/runtime.h
==================================================================
--- src/runtime/runtime.h
+++ src/runtime/runtime.h
@@ -181,10 +181,11 @@
 extern void objc_thread_add(void);
 extern void objc_thread_remove(void);
 extern void objc_exit(void);
 extern objc_uncaught_exception_handler objc_setUncaughtExceptionHandler(
     objc_uncaught_exception_handler);
+extern IMP (*objc_forward_handler)(id, SEL);
 extern id objc_autorelease(id);
 extern void* objc_autoreleasePoolPush(void);
 extern void objc_autoreleasePoolPop(void*);
 extern id _objc_rootAutorelease(id);
 
@@ -210,9 +211,15 @@
 static inline const char*
 object_getClassName(id obj)
 {
 	return class_getName(object_getClass(obj));
 }
+
+static inline BOOL
+class_isMetaClass(Class cls)
+{
+	return (cls->info & OBJC_CLASS_INFO_METACLASS);
+}
 
 #undef OBJC_BRIDGE
 
 #endif