Backporting Cwd.pm to 5.005 - s/XSLoader/DynaLoader/ ?

Hi,

I think it would probably involve very little work to backport Cwd.pm 
to perl 5.005, so those folks could have taint-safe versions of the 
module.  However, Cwd uses XSLoader, which is a core-only module 
(grumble) and not available on 5.005 - so I'd like to replace XSLoader 
with DynaLoader there.  Any objections?  Anything I should beware of?
My latest snapshot is Cwd-2.08_03.tar.gz , available on CPAN.

 -Ken