--- Libc/Libc-320/include/err.h
+++ Libc/Libc-262.2.12/include/err.h
@@ -71,21 +71,14 @@
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
-void	err(int, const char *, ...) __dead2;
-void	verr(int, const char *, _BSD_VA_LIST_) __dead2;
-void	errc(int, int, const char *, ...) __dead2;
-void	verrc(int, int, const char *, _BSD_VA_LIST_) __dead2;
-void	errx(int, const char *, ...) __dead2;
-void	verrx(int, const char *, _BSD_VA_LIST_) __dead2;
-void	warn(const char *, ...);
-void	vwarn(const char *, _BSD_VA_LIST_);
-void	warnc(int, const char *, ...);
-void	vwarnc(int, const char *, _BSD_VA_LIST_);
-void	warnx(const char *, ...);
-void	vwarnx(const char *, _BSD_VA_LIST_);
-void	err_set_file(void *);
-void	err_set_exit(void (*)(int));
-
+__dead void	err __P((int, const char *, ...)) __attribute__((__noreturn__));
+__dead void	verr __P((int, const char *, _BSD_VA_LIST_)) __attribute__((__noreturn__));
+__dead void	errx __P((int, const char *, ...)) __attribute__((__noreturn__));
+__dead void	verrx __P((int, const char *, _BSD_VA_LIST_)) __attribute__((__noreturn__));
+void		warn __P((const char *, ...));
+void		vwarn __P((const char *, _BSD_VA_LIST_));
+void		warnx __P((const char *, ...));
+void		vwarnx __P((const char *, _BSD_VA_LIST_));
 __END_DECLS
 
 #endif /* !_ERR_H_ */