--- ray/src/common/random.h	1996/02/13 11:32:17	2.4
+++ ray/src/common/random.h	1999/01/09 09:15:48	2.7
@@ -1,6 +1,6 @@
-/* Copyright (c) 1992 Regents of the University of California */
+/* Copyright (c) 1999 Silicon Graphics, Inc. */
 
-/* SCCSid "$SunId$ LBL" */
+/* SCCSid "$SunId$ SGI" */
 
 /*
  *  random.h - header file for random(3) and urand() function.
@@ -11,6 +11,7 @@
 #ifdef	MSDOS
 
 #define random()	((long)rand()<<16^(long)rand()<<6^(long)rand()>>4)
+#define srandom(s)	srand((unsigned)(s))
 
 #define frandom()	(rand()*(1./32768.))
 
@@ -27,16 +28,22 @@ extern long  lrand48();
 extern double  drand48();
 
 #define	 random()	lrand48()
+#define  srandom(s)	srand48((long)(s))
 #define	 frandom()	drand48()
 
 #endif
 #endif
 
 #ifdef  MC
+
 #define  urand(i)	frandom()
+#define  initurand(n)	(n)
+
 #else
+
+extern unsigned short	*urperm;
+extern int	urmask, initurand();
+
 #define	 urand(i)	((urperm[(i)&urmask]+frandom())/(urmask+1))
-#endif
 
-extern short  *urperm;
-extern int  urmask;
+#endif