===========================================================================
$NetBSD: MESSAGE,v 1.1.1.1 2008/10/21 07:20:29 phonohawk Exp $

Append the following line to your .emacs file:

  (autoload 'rnc-mode "rnc-mode")
  (add-to-list 'auto-mode-alist '("\\.rnc\\'" . rnc-mode))
===========================================================================
