Pathname bug on Windows box?

— test.rb —
require ‘pathname’
puts Pathname.new(’.’).realpath
— test.rb —

always produces:

c:/ruby/lib/ruby/1.8/pathname.rb:341:in lstat': Invalid argument - /c: (Errno::EINVAL) from c:/ruby/lib/ruby/1.8/pathname.rb:341:inrealpath’
from test.rb:2

any ideas? seems like Pathname doesn’t support windows at all?

where to submit this kind of bugs?