the namespace rules does not allow this. */
extern void __bzero __P ((__ptr_t __s, size_t __n));
-#if defined __USE_BSD || (defined __USE_XOPEN_EXTENDED \
- && (_POSIX_C_SOURCE - 0) < 199506L)
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
extern void bcopy __P ((__const __ptr_t __src, __ptr_t __dest, size_t __n));