--- Libc/Libc-320/include/regexp.h
+++ Libc/Libc-262.3.2/include/regexp.h
@@ -84,10 +84,10 @@
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
-regexp *regcomp(const char *);
-int regexec(const  regexp *, const char *);
-void regsub(const  regexp *, const char *, char *);
-void regerror(const char *);
+regexp *regcomp __P((const char *));
+int regexec __P((const  regexp *, const char *));
+void regsub __P((const  regexp *, const char *, char *));
+void regerror __P((const char *));
 __END_DECLS
 
 #endif /* !_REGEXP_H_ */