Thanks, we'll consider that suggestion.

It might break cygwin, or make it behave differently, thus my comment at the bottom.

Windows is definitely a target OS

Good to hear. In addition to the OP getting a porting error, my initial assumption that Windows wasn't supported was based on the complete lack of cpan testers reports for the OS. Further checking reveals some for older versions. I guess they haven't gotten around to 0.313 yet.