#endif /* __sys_stdtypes_h */
/* A null pointer constant. */
-
-#if defined (_STDDEF_H) || defined (__need_NULL)
-#undef NULL /* in case <stdio.h> has defined it. */
-#ifdef __GNUG__
-#define NULL __null
-#else /* G++ */
-#ifndef __cplusplus
-#define NULL ((void *)0)
-#else /* C++ */
+#ifndef NULL
+#ifdef __cplusplus
#define NULL 0
-#endif /* C++ */
-#endif /* G++ */
-#endif /* NULL not defined and <stddef.h> or need NULL. */
-#undef __need_NULL
+#else
+#define NULL ((void*)0)
+#endif
+#endif
#ifndef offsetof