--- ray/src/rt/devcomm.c	1993/04/05 15:16:47	2.3
+++ ray/src/rt/devcomm.c	1993/11/18 09:42:58	2.4
@@ -30,6 +30,8 @@ struct driver	comm_driver = {
 	comm_comout, comm_comin, comm_flush
 };
 
+static int	mygets(), myputs(), reply_error(), getstate();
+
 FILE	*devin, *devout;
 
 int	devchild;