--- ray/src/px/pflip.c	1991/01/09 11:16:39	1.2
+++ ray/src/px/pflip.c	1991/01/09 12:21:09	1.3
@@ -8,7 +8,7 @@ static char SCCSid[] = "$SunId$ LBL";
  * flip picture file horizontally and/or vertically
  */
 
-#include "standard.h"
+#include <stdio.h>
 
 #include "color.h"