--- lib/strerror.c.orig	Tue Jan  7 18:03:01 1997
+++ lib/strerror.c	Thu Dec 10 08:19:59 1998
@@ -11,9 +11,11 @@
 
 #include <sys/errno.h>
 
+/*
 extern	int	errno;
 extern	char	*sys_errlist[];
 extern	int	sys_nerr;
+*/
 
 char	*
 strerror(x)