--- ray/src/px/ra_skel.c	1991/11/12 15:16:41	2.1
+++ ray/src/px/ra_skel.c	1993/07/12 12:41:16	2.6
@@ -1,3 +1,5 @@
+/* Copyright (c) 1992 Regents of the University of California */
+
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
 #endif
@@ -17,12 +19,16 @@ static char SCCSid[] = "$SunId$ LBL";
  */
 
 #include  <stdio.h>
+#include  <math.h>
+#ifdef MSDOS
+#include  <fcntl.h>
+#endif
 #include  "color.h"
 #include  "resolu.h"
 
-extern double  atof();
+extern char  *malloc();
 
-double	gamma = 2.2;			/* gamma correction */
+double	gamcor = 2.2;			/* gamma correction */
 
 int  bradj = 0;				/* brightness adjustment */
 
@@ -44,7 +50,7 @@ char  *argv[];
 		if (argv[i][0] == '-')
 			switch (argv[i][1]) {
 			case 'g':		/* gamma correction */
-				gamma = atof(argv[++i]);
+				gamcor = atof(argv[++i]);
 				break;
 			case 'e':		/* exposure adjustment */
 				if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
@@ -72,7 +78,11 @@ char  *argv[];
 				progname, argv[i+1]);
 		exit(1);
 	}
-	setcolrgam(gamma);		/* set up gamma correction */
+#ifdef MSDOS
+	setmode(fileno(stdin), O_BINARY);
+	setmode(fileno(stdout), O_BINARY);
+#endif
+	setcolrgam(gamcor);		/* set up gamma correction */
 	if (reverse) {
 					/* get their image resolution */
 		read_skel_head(&xmax, &ymax);