# File mkmf.rb, line 192
  def self::logfile file
    @logfile = file
    if @log and not @log.closed?
      @log.flush
      @log.close
      @log = nil
    end
  end

# File mkmf.rb, line 186
  def self::message(*s)
    @log ||= File::open(@logfile, 'w')
    @log.sync = true
    @log.printf(*s)
  end

# File mkmf.rb, line 175
  def self::open
    @log ||= File::open(@logfile, 'w')
    @log.sync = true
    $stderr.reopen(@log)
    $stdout.reopen(@log)
    yield
  ensure
    $stderr.reopen(@orgerr)
    $stdout.reopen(@orgout)
  end

# File mkmf.rb, line 201
  def self::postpone
    tmplog = "mkmftmp#{@postpone += 1}.log"
    open do
      log, *save = @log, @logfile, @orgout, @orgerr
      @log, @logfile, @orgout, @orgerr = nil, tmplog, log, log
      begin
        log.print(open {yield})
        @log.close
        File::open(tmplog) {|t| FileUtils.copy_stream(t, log)}
      ensure
        @log, @logfile, @orgout, @orgerr = log, *save
        @postpone -= 1
        rm_f tmplog
      end
    end
  end