diff -ur NetKit-B-0.06.orig/telnet/defines.h NetKit-B-0.06/telnet/defines.h
--- NetKit-B-0.06.orig/telnet/defines.h	Fri Dec 17 07:18:16 1993
+++ NetKit-B-0.06/telnet/defines.h	Mon Jun  5 15:34:51 1995
@@ -34,6 +34,10 @@
  *	$Id: NetKit-B-0.06-telnet.patch,v 1.1 1996/07/16 05:17:22 dholland Exp $
  */
 
+#define ENV_VAR NEW_ENV_VAR
+#define ENV_VALUE NEW_ENV_VALUE
+#define TELOPT_ENVIRON TELOPT_NEW_ENVIRON
+
 #define	settimer(x)	clocks.x = clocks.system++
 
 #if	!defined(TN3270)
diff -ur NetKit-B-0.06.orig/telnetd/defs.h NetKit-B-0.06/telnetd/defs.h
--- NetKit-B-0.06.orig/telnetd/defs.h	Mon May 23 09:11:57 1994
+++ NetKit-B-0.06/telnetd/defs.h	Mon Jun  5 15:34:39 1995
@@ -40,6 +40,9 @@
 #include <sys/types.h>
 #include <sys/param.h>
 
+#define ENV_VAR NEW_ENV_VAR
+#define ENV_VALUE NEW_ENV_VALUE
+#define TELOPT_ENVIRON TELOPT_NEW_ENVIRON
 
 #ifndef	BSD
 # define	BSD 43