pypy homebrew recipe, using nightly on OSX 64bit

pypy.rb

require 'formula'
require 'hardware'

class Pypy < Formula
  if MacOS.prefer_64_bit?
    url 'http://buildbot.pypy.org/nightly/trunk/pypy-c-jit-42951-88b090e851cc-osx64.tar.bz2'
    md5 'f2fc482e8de56171f05ad83d92846acf'
    version '1.5.0a'
  else
    url 'http://pypy.org/download/pypy-1.4.1-osx.tar.bz2'
    md5 '8584c4e8c042f5b661fcfffa0d9b8a25'
    version '1.4.1'
  end
  homepage 'http://pypy.org/'

  def install
    prefix.install ["bin", "lib-python", "lib_pypy", "include"]
  end
end