Index: ntpclient-2007/ntpclient.c
===================================================================
--- ntpclient-2007.orig/ntpclient.c	2008-08-12 03:11:34.000000000 +0200
+++ ntpclient-2007/ntpclient.c	2008-08-12 03:11:36.000000000 +0200
@@ -614,7 +614,7 @@
 	ntpc.cross_check=1;
 
 	for (;;) {
-		c = getopt( argc, argv, "c:" DEBUG_OPTION "f:g:h:i:lp:q:" REPLAY_OPTION "st");
+		c = getopt( argc, argv, "c:" DEBUG_OPTION "f:g:h:i:lp:q:" REPLAY_OPTION "stD");
 		if (c == EOF) break;
 		switch (c) {
 			case 'c':
@@ -663,6 +663,10 @@
 				(ntpc.cross_check)=0;
 				break;
 
+			case 'D':
+				daemon();
+				break;
+
 			default:
 				usage(argv[0]);
 				exit(1);