Index: src/runtime/lookup.m
==================================================================
--- src/runtime/lookup.m
+++ src/runtime/lookup.m
@@ -62,11 +62,11 @@
 
 	return imp;
 }
 
 IMP
-objc_msg_lookup_super(struct objc_abi_super *super, SEL sel)
+objc_msg_lookup_super(struct objc_super *super, SEL sel)
 {
 	IMP imp;
 
 	if (super->self == nil)
 		return (IMP)nil_method;

Index: src/runtime/runtime-private.h
==================================================================
--- src/runtime/runtime-private.h
+++ src/runtime/runtime-private.h
@@ -58,15 +58,10 @@
 	struct objc_abi_method_list *instance_methods;
 	struct objc_abi_method_list *class_methods;
 	struct objc_protocol_list *protocols;
 };
 
-struct objc_abi_super {
-	id self;
-	Class class;
-};
-
 struct objc_abi_method_description {
 	const char *name;
 	const char *types;
 };
 

Index: src/runtime/runtime.h
==================================================================
--- src/runtime/runtime.h
+++ src/runtime/runtime.h
@@ -64,10 +64,15 @@
 
 struct objc_selector {
 	uintptr_t uid;
 	const char *types;
 };
+
+struct objc_super {
+	id self;
+	Class class;
+};
 
 struct objc_method {
 	struct objc_selector sel;
 	IMP imp;
 };
@@ -110,9 +115,10 @@
 extern BOOL class_conformsToProtocol(Class, Protocol*);
 extern IMP class_getMethodImplementation(Class, SEL);
 extern IMP class_replaceMethod(Class, SEL, IMP, const char*);
 extern const char* objc_get_type_encoding(Class, SEL);
 extern IMP objc_msg_lookup(id, SEL);
+extern IMP objc_msg_lookup_super(struct objc_super*, SEL);
 extern void objc_thread_add(void);
 extern void objc_thread_remove(void);
 extern void objc_exit(void);
 #endif