--- Gnu-Mach/device/if_ether.h	2020/09/02 04:36:57	1.1
+++ Gnu-Mach/device/if_ether.h	2020/09/02 04:47:55	1.1.1.4
@@ -2,7 +2,7 @@
  * Mach Operating System
  * Copyright (c) 1991 Carnegie Mellon University
  * All Rights Reserved.
- * 
+ *
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
@@ -45,13 +45,8 @@ struct	ether_header {
 	u_short	ether_type;
 };
 
-#define	ETHERMTU	1500
-#define	ETHERMIN	(60-14)
-
 #ifdef	KERNEL
-u_char	etherbroadcastaddr[6];
-
-extern char *	ether_sprintf();
-#endif	KERNEL
+extern char *	ether_sprintf(const u_char *);
+#endif	/* KERNEL */
 
 #endif	/*_DEVICE_IF_ETHER_H_*/