--- ray/src/util/rad.c	2015/05/27 14:32:35	2.118
+++ ray/src/util/rad.c	2015/08/02 01:32:15	2.120
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rad.c,v 2.118 2015/05/27 14:32:35 greg Exp $";
+static const char	RCSid[] = "$Id: rad.c,v 2.120 2015/08/02 01:32:15 greg Exp $";
 #endif
 /*
  * Executive program for oconv, rpict and pfilt
@@ -9,6 +9,7 @@ static const char	RCSid[] = "$Id: rad.c,v 2.118 2015/0
 
 #include <ctype.h>
 #include <time.h>
+#include <signal.h>
 
 #include "platform.h"
 #include "rtprocess.h"
@@ -831,19 +832,21 @@ renderopts(			/* set rendering options */
 	if (vdef(RENDER))
 		op = addarg(op, vval(RENDER));
 	if (rvdevice != NULL) {
-		if (vdef(RVU))
+		if (vdef(RVU)) {
 			if (vval(RVU)[0] != '-') {
 				atos(c_rvu, sizeof(c_rvu), vval(RVU));
 				po = addarg(po, sskip2(vval(RVU), 1));
 			} else
 				po = addarg(po, vval(RVU));
+		}
 	} else {
-		if (vdef(RPICT))
+		if (vdef(RPICT)) {
 			if (vval(RPICT)[0] != '-') {
 				atos(c_rpict, sizeof(c_rpict), vval(RPICT));
 				po = addarg(po, sskip2(vval(RPICT), 1));
 			} else
 				po = addarg(po, vval(RPICT));
+		}
 	}
 }
 
@@ -1144,12 +1147,13 @@ pfiltopts(				/* get pfilt options */
 		po = addarg(po, "-m .25");
 		break;
 	}
-	if (vdef(PFILT))
+	if (vdef(PFILT)) {
 		if (vval(PFILT)[0] != '-') {
 			atos(c_pfilt, sizeof(c_pfilt), vval(PFILT));
 			po = addarg(po, sskip2(vval(PFILT), 1));
 		} else
 			po = addarg(po, vval(PFILT));
+	}
 }