--- ray/src/rt/ambio.c	1996/05/28 13:42:46	2.3
+++ ray/src/rt/ambio.c	2003/02/25 02:47:22	2.5
@@ -1,19 +1,16 @@
-/* Copyright (c) 1992 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: ambio.c,v 2.5 2003/02/25 02:47:22 greg Exp $";
 #endif
-
 /*
  * Read and write portable ambient values
+ *
+ *  Declarations of external symbols in ambient.h
  */
 
-#include <stdio.h>
+#include "copyright.h"
 
-#include "color.h"
+#include "ray.h"
 
-#include "fvect.h"
-
 #include "ambient.h"
 
 
@@ -26,10 +23,8 @@ static char SCCSid[] = "$SunId$ LBL";
 #define  badvec(v)	(badflt((v)[0]) || badflt((v)[1]) || badflt((v)[2]))
 
 
-extern double  getflt();
-extern long  getint();
 
-
+void
 putambmagic(fp)			/* write out ambient value magic number */
 FILE  *fp;
 {
@@ -37,6 +32,7 @@ FILE  *fp;
 }
 
 
+int
 hasambmagic(fp)			/* read in and check validity of magic # */
 FILE  *fp;
 {
@@ -49,6 +45,7 @@ FILE  *fp;
 }
 
 
+int
 writambval(av, fp)		/* write ambient value to stream */
 register AMBVAL  *av;
 FILE  *fp;
@@ -94,6 +91,7 @@ register AMBVAL  *av;
 }
 
 
+int
 readambval(av, fp)		/* read ambient value from stream */
 register AMBVAL  *av;
 FILE  *fp;