--- ray/src/rt/rpict.c	1993/01/20 15:19:47	2.21
+++ ray/src/rt/rpict.c	1993/05/25 10:30:08	2.24
@@ -29,6 +29,10 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #define	 RFTEMPLATE	"rfXXXXXX"
 
+#ifndef SIGCONT
+#define SIGCONT		SIGIO
+#endif
+
 int  dimlist[MAXDIM];			/* sampling dimensions */
 int  ndims = 0;				/* number of sampling dimensions */
 int  samplendx;				/* sample index number */
@@ -78,7 +82,7 @@ long  tlastrept = 0L;			/* time at last report */
 extern long  time();
 extern long  tstart;			/* starting time */
 
-extern long  nrays;			/* number of rays traced */
+extern unsigned long  nrays;		/* number of rays traced */
 
 #define	 MAXDIV		16		/* maximum sample size */
 
@@ -115,7 +119,7 @@ report()		/* report progress */
 	t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6;
 	t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec;
 
-	sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n",
+	sprintf(errmsg, "%lu rays, %4.2f%% done after %5.4f CPU hours\n",
 			nrays, pctdone, t/3600.0);
 	eputs(errmsg);
 	tlastrept = time((long *)0);
@@ -124,10 +128,10 @@ report()		/* report progress */
 report()		/* report progress */
 {
 	tlastrept = time((long *)0);
-	sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n",
+	sprintf(errmsg, "%lu rays, %4.2f%% done after %5.4f hours\n",
 			nrays, pctdone, (tlastrept-tstart)/3600.0);
 	eputs(errmsg);
-	signal(SIGALRM, report);
+	signal(SIGCONT, report);
 }
 #endif
 
@@ -324,7 +328,7 @@ char  *zfile, *oldfile;
 #ifndef	 BSD
 	else
 #endif
-	signal(SIGALRM, report);
+	signal(SIGCONT, report);
 	ypos = vres-1 - i;
 	fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep);
 						/* compute scanlines */
@@ -347,7 +351,7 @@ char  *zfile, *oldfile;
 		fillscanbar(scanbar, zbar, hres, ypos, ystep);
 							/* write it out */
 #ifndef	 BSD
-		signal(SIGALRM, SIG_IGN);	/* don't interrupt writes */
+		signal(SIGCONT, SIG_IGN);	/* don't interrupt writes */
 #endif
 		for (i = ystep; i > 0; i--) {
 			if (zfd != -1 && write(zfd, (char *)zbar[i],
@@ -365,11 +369,11 @@ char  *zfile, *oldfile;
 			report();
 #ifndef	 BSD
 		else
-			signal(SIGALRM, report);
+			signal(SIGCONT, report);
 #endif
 	}
 						/* clean up */
-	signal(SIGALRM, SIG_IGN);
+	signal(SIGCONT, SIG_IGN);
 	if (zfd != -1) {
 		if (write(zfd, (char *)zbar[0], hres*sizeof(float))
 				< hres*sizeof(float))
@@ -389,6 +393,7 @@ char  *zfile, *oldfile;
 	pctdone = 100.0;
 	if (ralrm > 0)
 		report();
+	signal(SIGCONT, SIG_DFL);
 	return;
 writerr:
 	error(SYSTEM, "write error in render");