--- ray/src/px/colorscale.c	1989/02/02 10:49:11	1.1
+++ ray/src/px/colorscale.c	2003/02/22 02:07:27	2.4
@@ -1,9 +1,6 @@
-/* Copyright (c) 1987 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: colorscale.c,v 2.4 2003/02/22 02:07:27 greg Exp $";
 #endif
-
 /*
  *  colorscale.c - program to produce color pallets
  *
@@ -12,6 +9,8 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
+#include  <math.h>
+
 #include  "color.h"
 
 int  primary = -1;
@@ -22,7 +21,6 @@ main(argc, argv)
 int  argc;
 char  *argv[];
 {
-	double  atof();
 	int  i;
 
 	for (i = 1; i < argc && argv[i][0] == '-'; i++)