@@ -9,16 +9,12 @@
  * the packaging of this file.
  */
 
 #import "OFObject.h"
 
-#if !defined(__objc_INCLUDE_GNU) && !defined(OFCONSTSTRING_M)
-/*
- * This way, projects using libobjfw don't need -Wno-deprecated-declarations on
- * OS X 10.5.
- */
-extern void _OFConstStringClassReference;
+#ifndef __objc_INCLUDE_GNU
+extern void *_OFConstStringClassReference;
 #endif
 
 /**
  * A class for storing static strings using the @"" literal.
  */