$NetBSD$

--- aux.c.orig	2005-11-10 18:12:14.000000000 +0000
+++ aux.c
@@ -35,11 +35,8 @@ static char copyright[] =
 char *SysErr()
 {
 #ifdef HAVE_STRERROR
-	extern int	errno;
-
 	return strerror(errno);
 #else
-    extern int			errno;
     extern int			sys_nerr;
     extern char		       *sys_errlist[];
     static char			buff[BUFSIZ];
