$NetBSD: patch-ab,v 1.1 2007/02/15 14:24:24 rillig Exp $

--- test/test_ttyname_r.c.orig	2004-10-24 13:51:35.000000000 +0200
+++ test/test_ttyname_r.c	2006-10-06 10:31:49.000000000 +0200
@@ -10,6 +10,7 @@ int main()
 	{
 		printf("%s\n", dft_ttyname);
 		return (0);
-	}
+	} else
+		perror("ttyname_r");
 	return (err);
 }