--- ray/src/gen/genmarble.c	1991/12/19 15:08:34	2.2
+++ ray/src/gen/genmarble.c	2003/06/08 12:03:09	2.6
@@ -1,9 +1,6 @@
-/* Copyright (c) 1986 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: genmarble.c,v 2.6 2003/06/08 12:03:09 schorsch Exp $";
 #endif
-
 /*
  *  genmarble.c - generate a marble with bubbles inside.
  *
@@ -12,17 +9,18 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <stdio.h>
 
-#include  "random.h"
+#include <stdlib.h>
 
-#ifndef atof
-extern double  atof();
-#endif
+#include  <math.h>
 
+#include  "random.h"
+
 #define  PI	3.14159265359
 
 typedef double  FVECT[3];
 
-double  bubble();	/* pretty cute, huh? */
+static double  bubble();	/* pretty cute, huh? */
+static void sphere_cart();
 
 
 main(argc, argv)
@@ -70,12 +68,11 @@ char  **argv;
 }
 
 
-double
+static double
 bubble(v, cent, rad, bubrad)	/* compute location of random bubble */
 FVECT  v, cent;
 double  rad, bubrad;
 {
-	double  sqrt();
 	double  r, ro, theta, phi;
 
 	r = frandom()*bubrad;
@@ -88,11 +85,11 @@ double  rad, bubrad;
 }
 
 
+static void
 sphere_cart(v, ro, theta, phi)	/* spherical to cartesian coord. conversion */
 FVECT  v;
 double  ro, theta, phi;
 {
-	double  sin(), cos();
 	double  d;
 	
 	d = sin(phi);