extern "C" {
#endif
-#if __STDC_VERSION__ >= 199901L
-#define __restrict restrict
-#elif !defined(__GNUC__)
-#define __restrict
-#endif
+#include <features.h>
#define __NEED_FILE
#define __NEED_va_list
#include <bits/wchar.h>
-#undef NULL
-#ifdef __cplusplus
-#define NULL 0
-#else
-#define NULL ((void*)0)
-#endif
+#define NULL 0L
#undef WEOF
#define WEOF (-1)