--- ray/src/cv/mgflib/context.c	1997/10/10 16:45:51	1.25
+++ ray/src/cv/mgflib/context.c	1997/12/15 09:41:37	1.26
@@ -10,6 +10,7 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include <stdio.h>
 #include <math.h>
+#include <stdlib.h>
 #include <string.h>
 #include "parser.h"
 #include "lookup.h"