Index: src/runtime/linklib/linklib.m
==================================================================
--- src/runtime/linklib/linklib.m
+++ src/runtime/linklib/linklib.m
@@ -52,10 +52,11 @@
 #endif
 extern void __register_frame_info(const void *, void *);
 extern void __deregister_frame_info(const void *);
 
 struct Library *ObjFWRTBase;
+void *__objc_class_name_Protocol;
 
 static void __attribute__((__constructor__))
 init(void)
 {
 	static bool initialized = false;