$NetBSD: patch-ac,v 1.1 2006/04/26 01:52:18 wulf Exp $

--- src/macro.c.orig	2006-04-26 10:38:46.000000000 +0930
+++ src/macro.c	2006-04-26 10:39:00.000000000 +0930
@@ -287,7 +287,7 @@
 		p++;
 		break;
 	default:
-		for (p = *ptr; *p && isalnum(*p); p++)
+		for (p = *ptr; *p && isalnum((u_char) *p); p++)
 			;
 		break;
 	}