use_gcc42_on_lion
install_package "ruby-1.8.7-p249" "http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p249.tar.gz"
install_package "rubygems-1.6.2" "http://production.cf.rubygems.org/rubygems/rubygems-1.6.2.tgz" ruby