I am a user of ruby.
	There is a tool of fileutils.rb in lang/ruby18,
	but movement in lang/ruby16-shim-ruby18 seems to be different.
	I wanted to make it seem to be 'cp -Rp /home/fkimura /tmp'.

How-To-Repeat: 
sample script
---
#!/usr/bin/env ruby
require 'fileutils'
IN1 = "/home/fkimura"
module FileUtils16
  def FileUtils16.cp_r(src, dest, *options)
    begin
      FileUtils.cp_r(src, dest, *options)
    rescue TypeError
      optionhash = {}
      options.each { |o| optionhash[o] = true }
      FileUtils.cp_r(src, dest, optionhash)
    end
  end
end

FileUtils16.cp_r("#{IN1}/", "/tmp", :preserve)
exit 0
---

 - ruby1.6.8 + ruby-shim-ruby18 (using USE_RUBY_FEATURES=fileutils)
	It was carried out to think in this case.

 - ruby18
	A file is copied after directory of fkimura was made under /tmp in this case.
	Cannot you unify it?