--- gcc/objc/hash.h	2018/04/24 18:13:43	1.1.1.3
+++ gcc/objc/hash.h	2018/04/24 18:20:20	1.1.1.4
@@ -27,11 +27,7 @@ the Free Software Foundation, 675 Mass A
 #ifndef __hash_INCLUDE_GNU
 #define __hash_INCLUDE_GNU
 
-#ifdef IN_GCC
-#include "gstddef.h"
-#else
-#include "stddef.h"
-#endif
+#include <stddef.h>
 
 /*
  * This data structure is used to hold items