Yeah it's the same compiler

Seems an odd error to be getting. I just tried it out on linux and it all works fine there, too.

What version of perl are you running ? I notice, too, that my C file is being generated by ExtUtils::ParseXS-2.17. Maybe that's the key to success ?

Update: Then again ... on linux, the C file was generated by xsubpp-1.9508.

Cheers,
Rob