silent_system

# File lib/rubygems/util.rb, line 72
  def self.silent_system *command
    require 'thread'

    @silent_mutex ||= Mutex.new

    null_device = Gem.win_platform? ? 'NUL' : '/dev/null'

    @silent_mutex.synchronize do
      begin
        stdout = STDOUT.dup
        stderr = STDERR.dup

        STDOUT.reopen null_device, 'w'
        STDERR.reopen null_device, 'w'

        return system(*command)
      ensure
        STDOUT.reopen stdout
        STDERR.reopen stderr
      end
    end
  end