$OpenBSD: patch-drivers_nutdrv_qx_c,v 1.1 2014/01/07 21:55:54 sthen Exp $
--- drivers/nutdrv_qx.c.orig	Fri Nov 22 09:45:50 2013
+++ drivers/nutdrv_qx.c	Fri Nov 22 09:46:00 2013
@@ -1759,7 +1759,9 @@ static int	qx_command(const char *cmd, char *buf, size
 
 		case -ETIMEDOUT:	/* Connection timed out */
 		case -EOVERFLOW:	/* Value too large for defined data type */
+#ifdef EPROTO
 		case -EPROTO:		/* Protocol error */
+#endif
 		default:
 			break;
 		}