--- ray/src/px/greyscale.c	1991/11/12 16:05:23	2.1
+++ ray/src/px/greyscale.c	1991/12/19 14:51:48	2.2
@@ -23,7 +23,7 @@ int  argc;
 char  *argv[];
 {
 	COLOR  col;
-	double  d1,d2,d3, atof(), log();
+	double  d1,d2,d3, log();
 	int  i;
 
 	printargs(argc, argv, stdout);