#include <features.h>
-#undef NULL
-#ifdef __cplusplus
-#define NULL 0
-#else
-#define NULL ((void*)0)
-#endif
-
+#define NULL 0L
#define __NEED_size_t
#define __NEED_time_t
long __tm_gmtoff;
const char *__tm_zone;
};
+#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
+#define tm_gmtoff __tm_gmtoff
+#define tm_zone __tm_zone
+#endif
clock_t clock (void);
time_t time (time_t *);