--- ray/src/gen/genbranch.c	1991/11/12 17:04:47	2.1
+++ 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 $";
 #endif
-
 /*
  *  genbranch.c - program to generate 3D Christmas tree branches.
  *
@@ -12,6 +9,10 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
+#include <stdlib.h>
+
+#include  <math.h>
+
 #include  "random.h"
 
 #define  errf()		(var*(0.5-frandom()))
@@ -35,7 +36,6 @@ main(argc, argv)
 int  argc;
 char  *argv[];
 {
-	double  atof();
 	int  i, j;
 
 	for (i = 1; i < argc && argv[i][0] == '-'; i++)