It would make sense if File::Find did that... however, it doesn't. I have a somewhat more portable rewrite that does, but it's quite a bit slower. (It's also supposed to receive a nicer interface at some point.)
Even in 5.7.3, File::Find only works reliably on Unix and Windows systems. Mac is pretty good.
Comment on Re: Re: File::Find uses '/' in path on Win32 system.