require 'rubygems'
require 'geminstaller'
# You can use the geminstaller_rails_preinitializer out of the GemInstaller gem:
# require 'geminstaller_rails_preinitializer'
# ...or specify your own.  We'll use the one from this working copy of GemInstaller:
require "#{File.expand_path(RAILS_ROOT)}/../../../lib/geminstaller_rails_preinitializer.rb"