default_dir

# File lib/rubygems/defaults.rb, line 21
  def self.default_dir
    path = if defined? RUBY_FRAMEWORK_VERSION then
             [
               File.dirname(ConfigMap[:sitedir]),
               'Gems',
               ConfigMap[:ruby_version]
             ]
           elsif ConfigMap[:rubylibprefix] then
             [
              ConfigMap[:rubylibprefix],
              'gems',
              ConfigMap[:ruby_version]
             ]
           else
             [
               ConfigMap[:libdir],
               ruby_engine,
               'gems',
               ConfigMap[:ruby_version]
             ]
           end

    @default_dir ||= File.join(*path)
  end