--- ray/src/util/rad.c	2015/05/27 12:50:46	2.113
+++ ray/src/util/rad.c	2015/05/27 14:32:35	2.118
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rad.c,v 2.113 2015/05/27 12:50:46 greg Exp $";
+static const char	RCSid[] = "$Id: rad.c,v 2.118 2015/05/27 14:32:35 greg Exp $";
 #endif
 /*
  * Executive program for oconv, rpict and pfilt
@@ -401,9 +401,6 @@ checkfiles(void)			/* check for existence and modified
 		atos(fntemp, sizeof(fntemp), vval(PCMAP));
 		pcmapname = savqstr(fntemp);
 		pcmapdate = fdate(pcmapname);
-		if (pgmapname == NULL && !nowarn)
-			fprintf(stderr, "%s: warning - '%s' assigned without '%s'\n",
-					progname, vnam(PCMAP), vnam(PGMAP));
 	}
 	matdate = checklast(vval(MATERIAL));
 }	
@@ -647,6 +644,8 @@ mkpmap(void)			/* run mkpmap if indicated */
 		for (cp = combuf; *cp; cp++)
 			;
 		mkpmapopts(cp);
+				/* force file overwrite */
+		cp = addarg(cp, "-fo+");
 		if (vdef(REPORT)) {
 			char	errfile[256];
 			int	n;
@@ -675,9 +674,9 @@ mkpmap(void)			/* run mkpmap if indicated */
 		if (runcom(combuf)) {
 			fprintf(stderr, "%s: error running %s\n",
 					progname, c_mkpmap);
-			if (pgmapname != NULL)
+			if (pgmapname != NULL && pgmapdate < oct1date)
 				unlink(pgmapname);
-			if (pcmapname != NULL)
+			if (pcmapname != NULL && pcmapdate < oct1date)
 				unlink(pcmapname);
 			quit(1);
 		}