Index: unnethack-3.5.3/sys/unix/nethack.sh
===================================================================
--- unnethack-3.5.3.orig/sys/unix/nethack.sh	2010-09-06 16:44:53.595210504 +0400
+++ unnethack-3.5.3/sys/unix/nethack.sh	2010-09-06 16:48:35.827209210 +0400
@@ -1,6 +1,11 @@
 #!/bin/sh
 #	SCCS Id: @(#)nethack.sh	3.4	1990/02/26
 
+if [ "x$1" == "x--xterm" ]; then
+  shift
+  exec /usr/bin/osso-xterm "$0"
+fi
+
 HACKDIR=/usr/games/lib/nethackdir
 export HACKDIR
 HACK=$HACKDIR/nethack
