# File mconv.rb, line 30
  def Mconv.setup(internal_mime_charset)
    internal_mime_charset = internal_mime_charset.downcase
    case internal_mime_charset
    when 'euc-jp'
      kcode = 'e'
    when 'euc-kr'
      kcode = 'e'
    when 'shift_jis'
      kcode = 's'
    when 'iso-8859-1'
      kcode = 'n'
    when 'utf-8'
      kcode = 'u'
    else
      raise "unexpected MIME charset: #{internal_mime_charset}"
    end
    @internal_mime_charset = internal_mime_charset
    $KCODE = kcode
  end