Include real prototype for bcmp

include/string.h

@@ -99,7 +99,7 @@ extern size_t strspn __P ((__const char *__s, __const char *__accept));
 extern char *strsignal __P ((int __sig));
 
 /* More BSD compatabilty */
-#define bcmp	memcmp
+int bcmp(const void *s1, const void *s2, size_t n);
 
 /* Linux silly hour */
 char *strfry __P ((char *));