pkg:setup
rm_f %W[#{rubygems_bindir}/bundle #{rubygems_bindir}/bundler ]
rm_rf Dir[HOMEBREW_PREFIX/"lib/ruby/gems/#{api_version}/gems/bundler-*"]
rubygems_bindir.install_symlink Dir[libexec/"gembin/*"]
config_file = lib/"ruby/#{api_version}/rubygems/defaults/operating_system.rb"
config_file.unlink if config_file.exist?
config_file.write rubygems_config
%w[sitearchdir vendorarchdir].each do |dir|
mkdir_p `#{bin}/ruby -rrbconfig -e 'print RbConfig::CONFIG["#{dir}"]'`