# File lib/rubygems/defaults.rb, line 10
  def self.default_dir
    if defined? RUBY_FRAMEWORK_VERSION then
      File.join File.dirname(ConfigMap[:sitedir]), 'Gems',
                ConfigMap[:ruby_version]
    elsif defined? RUBY_ENGINE then
      File.join ConfigMap[:libdir], RUBY_ENGINE, 'gems',
                ConfigMap[:ruby_version]
    else
      gemdir = File::expand_path(File::join(ConfigMap[:sitedir],"..","gems"))
      File.join(gemdir, ConfigMap[:ruby_version])
    end
  end