Install mono-2.11.4 os OSX via homebrew.

mono.rb

# http://www.mono-project.com/Compiling_Mono_on_OSX

require 'formula'

class Mono < Formula
  #url 'http://download.mono-project.com/sources/mono/mono-3.0.6.tar.bz2'
  #sha1 'e2187f80366fcd65c55a1ab946f8d3b39e81be77'
  url 'http://download.mono-project.com/sources/mono/mono-2.11.4.tar.bz2'
  sha1 '41707d3b6a1bd8380f4150474602c19e5e88e3f8'
  
  homepage 'http://www.mono-project.com/'
  

  def install
    args = ["--prefix=#{prefix}",
            "--with-glib=embedded",
            "--enable-nls=no",
            "--build=i386-apple-darwin11.2.0"]

    #args << "--host=x86_64-apple-darwin10" if MacOS.prefer_64_bit?

    system "./configure", *args
    system "make"
    system "make install"
  end
end