This is Perl module Module::Install::XSUtil. INSTALLATION Module::Install::XSUtil installation is straightforward. If your CPAN shell is set up, you should just be able to do $ cpan Module::Install::XSUtil Download it, unpack it, then build it as per the usual: $ perl Makefile.PL $ make && make test Then install it: $ make install DOCUMENTATION Module::Install::XSUtil documentation is available as in POD. So you can do: $ perldoc Module::Install::XSUtil to read the documentation online with your favorite pager. Goro Fuji (gfx)