--- ray/src/hd/rholo4.c	1999/02/12 11:32:22	3.26
+++ ray/src/hd/rholo4.c	2003/02/22 02:07:25	3.28
@@ -1,9 +1,6 @@
-/* Copyright (c) 1999 Silicon Graphics, Inc. */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ SGI";
+static const char	RCSid[] = "$Id: rholo4.c,v 3.28 2003/02/22 02:07:25 greg Exp $";
 #endif
-
 /*
  * Holodeck display process communication
  */
@@ -216,7 +213,7 @@ int	block;
 	case DR_CLOBBER:	/* clobber holodeck */
 		if (msg.nbytes)
 			error(INTERNAL, "bad DR_CLOBBER from display process");
-		if (!force || !ncprocs)
+		if (force <= 0 | ncprocs <= 0)
 			error(WARNING, "request to clobber holodeck denied");
 		else {
 			error(WARNING, "clobbering holodeck contents");