--- ray/src/gen/genbranch.c	1991/12/19 15:09:06	2.2
+++ ray/src/gen/genbranch.c	2003/02/22 02:07:23	2.5
@@ -1,9 +1,6 @@
-/* Copyright (c) 1989 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: genbranch.c,v 2.5 2003/02/22 02:07:23 greg Exp $";
 #endif
-
 /*
  *  genbranch.c - program to generate 3D Christmas tree branches.
  *
@@ -12,13 +9,13 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
+#include <stdlib.h>
+
+#include  <math.h>
+
 #include  "random.h"
 
 #define  errf()		(var*(0.5-frandom()))
-
-#ifndef atof
-extern double  atof();
-#endif
 
 double  bstart[3] = {0.0, 0.0, 0.0};	/* start of branch */
 double  bend[3] = {28.0, 8.0, 0.0};	/* end of branch */