formula for emacs apel

apel.rb

require 'formula'

class Apel < Formula
  url 'http://kanji.zinbun.kyoto-u.ac.jp/~tomo/lemi/dist/apel/apel-10.8.tar.gz'
  homepage 'http://kanji.zinbun.kyoto-u.ac.jp/~tomo/elisp/APEL/'
  md5 '20b82300094b4377e1fb74d83ebbd972'

  depends_on 'emacs'

  def install
    system "make", "EMACS=/usr/local/bin/emacs"
    system "make", "install", "EMACS=/usr/local/bin/emacs", "PREFIX=#{prefix}"
  end
end