--- Libc/Libc-320/include/ttyent.h
+++ Libc/Libc-262.3.2/include/ttyent.h
@@ -85,10 +85,10 @@
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
-struct ttyent *getttyent(void);
-struct ttyent *getttynam(const char *);
-int setttyent(void);
-int endttyent(void);
+struct ttyent *getttyent __P((void));
+struct ttyent *getttynam __P((const char *));
+int setttyent __P((void));
+int endttyent __P((void));
 __END_DECLS
 
 #endif /* !_TTYENT_H_ */