--- ray/src/rt/raytrace.c	1993/02/23 13:57:11	2.4
+++ ray/src/rt/raytrace.c	1993/05/25 10:30:01	2.6
@@ -25,14 +25,16 @@ extern int  maxdepth;			/* maximum recursion depth */
 extern double  minweight;		/* minimum ray weight */
 extern int  do_irrad;			/* compute irradiance? */
 
-long  raynum = 0L;			/* next unique ray number */
-long  nrays = 0L;			/* number of calls to localhit */
+unsigned long  raynum = 0;		/* next unique ray number */
+unsigned long  nrays = 0;		/* number of calls to localhit */
 
 static FLOAT  Lambfa[5] = {PI, PI, PI, 0.0, 0.0};
 OBJREC  Lamb = {
 	OVOID, MAT_PLASTIC, "Lambertian",
 	{0, 5, NULL, Lambfa}, NULL,
 };					/* a Lambertian surface */
+
+static int  raymove(), checkset(), checkhit();
 
 #define  MAXLOOP	128		/* modifier loop detection */