internal_init

# File lib/rubygems/specification.rb, line 2150
  def internal_init # :nodoc:
    super
    @bin_dir       = nil
    @cache_dir     = nil
    @cache_file    = nil
    @doc_dir       = nil
    @ri_dir        = nil
    @spec_dir      = nil
    @spec_file     = nil
  end