--- np2/x11/cmserial.c	2011/01/15 16:48:39	1.5
+++ np2/x11/cmserial.c	2012/01/23 04:20:55	1.7
@@ -1,5 +1,3 @@
-/*	$Id: cmserial.c,v 1.5 2011/01/15 16:48:39 monaka Exp $	*/
-
 /*
  * Copyright (c) 2004 NONAKA Kimihiro
  * All rights reserved.
@@ -91,7 +89,6 @@ serialgetstat(COMMNG self)
 {
 	CMSER serial = (CMSER)(self + 1);
 	int status;
-	int rv;
 
 	rv = ioctl(serial->hdl, TIOCMGET, &status);
 	if (!(status & TIOCM_DSR)) {