#include <features.h>
-#undef NULL
-#ifdef __cplusplus
-#define NULL 0
-#else
-#define NULL ((void*)0)
-#endif
+#define NULL 0L
#define __NEED_size_t
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
char *strsep(char **, const char *);
-#endif
-
-#ifdef _BSD_SOURCE
size_t strlcat (char *, const char *, size_t);
size_t strlcpy (char *, const char *, size_t);
#endif