--- ray/src/px/ra_tiff.c	1991/11/12 16:05:41	2.1
+++ ray/src/px/ra_tiff.c	1993/11/18 09:55:26	2.5
@@ -10,13 +10,14 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
+#include  <math.h>
+
 #include  "tiffio.h"
 
 #include  "color.h"
 
 #include  "resolu.h"
 
-extern double  atof();
 
 extern char  *malloc(), *realloc();
 
@@ -24,7 +25,7 @@ int  lzcomp = 0;			/* use Lempel-Ziv compression? */
 
 int  greyscale = 0;			/* produce greyscale image? */
 
-double	gamma = 2.2;			/* gamma correction */
+double	gamcor = 2.2;			/* gamma correction */
 
 int  bradj = 0;				/* brightness adjustment */
 
@@ -44,7 +45,7 @@ char  *argv[];
 		if (argv[i][0] == '-')
 			switch (argv[i][1]) {
 			case 'g':
-				gamma = atof(argv[++i]);
+				gamcor = atof(argv[++i]);
 				break;
 			case 'z':
 				lzcomp = !lzcomp;
@@ -68,7 +69,7 @@ char  *argv[];
 		else
 			break;
 doneopts:
-	setcolrgam(gamma);
+	setcolrgam(gamcor);
 
 	if (reverse)
 		if (i != argc-2 && i != argc-1)
@@ -144,7 +145,7 @@ char	*inpf, *outf;
 	fputs(" -r\n", stdout);
 	fputformat(COLRFMT, stdout);
 	putchar('\n');
-	fprtresolu(xmax, ymax, stdout);
+	fprtresolu((int)xmax, (int)ymax, stdout);
 						/* convert image */
 	if (nsamps == 1)
 		pconfig = 1;