# File lib/compass/compiler.rb, line 36
    def out_of_date?
      Compass.configure_sass_plugin! unless Compass.sass_plugin_configured?
      sass_files.zip(css_files).each do |sass_filename, css_filename|
        return sass_filename if Sass::Plugin.exact_stylesheet_needs_update?(css_filename, sass_filename)
      end
      false
    end