Index: channel.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channel.c,v
retrieving revision 1.216
diff -u -r1.216 channel.c
--- channel.c	9 Jul 2005 20:37:59 -0000	1.216
+++ channel.c	12 Jul 2005 14:11:00 -0000
@@ -3391,7 +3391,7 @@
 			if ((x > 63) || (x < 0)) {
 				ast_log(LOG_WARNING, "Ignoring invalid group %d (maximum group is 63)\n", x);
 			} else
-				group |= (1 << x);
+				group |= ((ast_group_t) 1 << x);
 		}
 	}
 	return group;
@@ -3462,7 +3462,7 @@
 		return(buf);
 
 	for (i=0; i<=63; i++) {	/* Max group is 63 */
-		if (group & (1 << i)) {
+		if (group & ((ast_group_t) 1 << i)) {
 	   		if (!first) {
 				strncat(buf, ", ", buflen);
 			} else {