Mark legacy API with OBJC_PUBLIC

Fixes compilation errors on MINGW when using the legacy API (-fobjc-runtime=gnustep-1.7 or -fobjc-runtime=gcc)

objc/runtime-deprecated.h

@@ -12,70 +12,91 @@
  * in new code.
  */
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 void *objc_malloc(size_t size);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 void *objc_atomic_malloc(size_t size);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 void *objc_valloc(size_t size);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 void *objc_realloc(void *mem, size_t size);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 void * objc_calloc(size_t nelem, size_t size);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 void objc_free(void *mem);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 id objc_get_class(const char *name);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 id objc_lookup_class(const char *name);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 id objc_get_meta_class(const char *name);
 
+OBJC_PUBLIC
 #if !defined(__OBJC_RUNTIME_INTERNAL__)
 __attribute__((deprecated))
 #endif
 Class objc_next_class(void **enum_state);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 Class class_pose_as(Class impostor, Class super_class);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 SEL sel_get_typed_uid (const char *name, const char *types);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 SEL sel_get_any_typed_uid (const char *name);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 SEL sel_get_any_uid (const char *name);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 SEL sel_get_uid(const char *name);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 const char *sel_get_name(SEL selector);
 
+OBJC_PUBLIC
 #if !defined(__OBJC_RUNTIME_INTERNAL__)
 __attribute__((deprecated))
 #endif
 BOOL sel_is_mapped(SEL selector);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 const char *sel_get_type(SEL selector);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 SEL sel_register_name(const char *name);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 SEL sel_register_typed_name(const char *name, const char *type);
 
+OBJC_PUBLIC
 __attribute__((deprecated))
 BOOL sel_eq(SEL s1, SEL s2);
 

sendmsg2.c

@@ -303,6 +303,7 @@ struct objc_slot2 *objc_slot_lookup_super2(struct objc_super *super, SEL selecto
 	return (struct objc_slot2*)&nil_slot;
 }
 
+OBJC_PUBLIC
 struct objc_slot *objc_slot_lookup_super(struct objc_super *super, SEL selector)
 {
 	id receiver = super->receiver;