$NetBSD: patch-ai,v 1.1 2011/11/01 19:10:15 marino Exp $

--- session.c.orig	2006-01-08 05:58:08.000000000 +0000
+++ session.c
@@ -40,7 +40,7 @@
 #define	ASYNC_MODE	FNDELAY
 #elif	O_ASYNC
 #define	ASYNC_MODE	O_ASYNC
-#elif
+#else
 #error the fcntl argument to turn ON/OFF non-blocking I/O is unknown
 #endif