# File lib/sass/exec/base.rb, line 92
    def encoding_option(opts)
      encoding_desc = if Sass::Util.ruby1_8?
                        'Does not work in Ruby 1.8.'
                      else
                        'Specify the default encoding for input files.'
                      end
      opts.on('-E', '--default-encoding ENCODING', encoding_desc) do |encoding|
        if Sass::Util.ruby1_8?
          $stderr.puts "Specifying the encoding is not supported in ruby 1.8."
          exit 1
        else
          Encoding.default_external = encoding
        end
      end
    end