--- Libc/Libc-320/include/regex.h
+++ Libc/Libc-262.3.2/include/regex.h
@@ -120,11 +120,11 @@
 #define	REG_BACKR	02000	/* force use of backref code */
 
 __BEGIN_DECLS
-int	regcomp(regex_t *, const char *, int);
-size_t	regerror(int, const regex_t *, char *, size_t);
-int	regexec(const regex_t *,
-	    const char *, size_t, regmatch_t [], int);
-void	regfree(regex_t *);
+int	regcomp __P((regex_t *, const char *, int));
+size_t	regerror __P((int, const regex_t *, char *, size_t));
+int	regexec __P((const regex_t *,
+	    const char *, size_t, regmatch_t [], int));
+void	regfree __P((regex_t *));
 __END_DECLS
 
 #endif /* !_REGEX_H_ */