--- ray/src/gen/genbox.c	1989/02/02 11:16:26	1.1
+++ ray/src/gen/genbox.c	1993/08/02 14:22:59	2.4
@@ -12,7 +12,13 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
+#include  <math.h>
 
+
+#ifdef  DCL_ATOF
+extern double  atof();
+#endif
+
 char  let[]="0123456789._ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 
 char  *cmtype;		/* ppd material type */
@@ -32,7 +38,6 @@ main(argc, argv)
 int  argc;
 char  **argv;
 {
-	double  atof();
 	int  i;
 	
 	if (argc < 6)