$NetBSD$

--- lib/mkcmd/std_lex.mc.orig	2006-01-25 15:02:04.000000000 +0000
+++ lib/mkcmd/std_lex.mc
@@ -11,7 +11,6 @@ yywrap()
 {
 	register char *pcGot;
 	extern FILE *yyin;
-	extern int errno;
 
 	if (stdin == yyin) {
 		clearerr(stdin);
