--- ray/src/common/tcos.c	1998/12/16 18:15:07	3.1
+++ ray/src/common/tcos.c	2003/02/25 02:47:22	3.3
@@ -1,9 +1,6 @@
-/* Copyright (c) 1998 Silicon Graphics, Inc. */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ SGI";
+static const char	RCSid[] = "$Id: tcos.c,v 3.3 2003/02/25 02:47:22 greg Exp $";
 #endif
-
 /*
  * Table-based cosine approximation.
  *
@@ -11,7 +8,11 @@ static char SCCSid[] = "$SunId$ SGI";
  * to avoid conversion and guarantee that tsin(x)^2 + tcos(x)^2 == 1.
  *
  * No interpolation in this version.
+ *
+ * External symbols declared in standard.h
  */
+
+#include "copyright.h"
 
 #include <math.h>