$NetBSD$

Older implementations of skeychallenge() only have three arguments.

--- skey_fn.c.orig	2009-03-17 19:40:29.000000000 +0100
+++ skey_fn.c	2009-04-19 12:33:05.000000000 +0200
@@ -164,7 +164,11 @@
 		return(1);
 	    }
 
-	    if (skeychallenge(&p->skey, name, skeyprompt, 80) == 0) {
+	    if (skeychallenge(&p->skey, name, skeyprompt
+#ifndef OLDSKEY
+                                                        , 80
+#endif
+                                                            ) == 0) {
 		char buf[256];
 		sprintf(buf, "%s\nS/Key challenge: ", skeyprompt);
 		data->server_msg = tac_strdup(buf);
