--- ray/src/common/xf.c	1991/12/24 17:42:48	2.3
+++ ray/src/common/xf.c	2003/06/27 22:27:45	2.7
@@ -1,16 +1,15 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: xf.c,v 2.7 2003/06/27 22:27:45 greg Exp $";
 #endif
-
 /*
  *  xf.c - routines to convert transform arguments into 4X4 matrix.
  *
- *     1/28/86
+ *  External symbols declared in rtmath.h
  */
 
-#include  "standard.h"
+#include  <stdlib.h>
+#include  "rtmath.h"
+#include  "rtio.h"
 
 #define  d2r(a)		((PI/180.)*(a))