package "ruby#{ruby_version}"
package "ruby#{ruby_version}-dev"
- package "rubygems#{ruby_version}"
- package "irb#{ruby_version}"
+ package "rubygems#{ruby_version}" if ruby_version.to_f < 1.9
+ package "irb#{ruby_version}" if ruby_version.to_f < 1.9
package "imagemagick"
package "nodejs"