Index: abi/include/_bits/NULL.h
===================================================================
--- abi/include/_bits/NULL.h	(revision 7c3fb9bd77e4d2f6c10517a052e567f176fa91ee)
+++ abi/include/_bits/NULL.h	(revision a3f63ac154a8851b99a2cdc01fb73050f4b9ca43)
@@ -37,8 +37,4 @@
 /** @file
  * Definition of constant NULL.
- *
- * This definition is designed to work in both C and C++, and use
- * the special constant `nullptr` in C++11 and above.
- * Including this file is preferrable to defining the constant separately.
  */
 
@@ -46,15 +42,6 @@
 #define _BITS_NULL_H_
 
-#ifndef NULL
-
-#if __cplusplus >= 201103L
-#define NULL  nullptr
-#elif defined(__cplusplus)
-#define NULL  0L
-#else
-#define NULL  ((void *) 0)
-#endif
-
-#endif
+#define __need_NULL
+#include <stddef.h>
 
 #endif