--- ray/src/gen/genbranch.c	1989/02/02 11:16:27	1.1
+++ ray/src/gen/genbranch.c	2003/02/22 02:07:23	2.5
@@ -1,8 +1,7 @@
-/*
-
 #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 $";
 #endif
+/*
  *  genbranch.c - program to generate 3D Christmas tree branches.
  *
  *     8/23/86
@@ -10,6 +9,10 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
+#include <stdlib.h>
+
+#include  <math.h>
+
 #include  "random.h"
 
 #define  errf()		(var*(0.5-frandom()))
@@ -33,7 +36,6 @@ main(argc, argv)
 int  argc;
 char  *argv[];
 {
-	double  atof();
 	int  i, j;
 
 	for (i = 1; i < argc && argv[i][0] == '-'; i++)