Hi, Mingw runtime version 9 was released just prior to the release of perl-5.34.0. Mingw runtime version 10 was released a few weeks before 5.36.0. Mingw-w64 toolchains that have these latest runtimes (ie v9 or v10) are incapable of building perl from source. Part of the problem has already been fixed in blead - when https://github.com/Perl/perl5/pull/19663 was merged just after 5.36.0 was released. (Thank you, Karl.) That leaves only https://rt.cpan.org/Ticket/Display.html?id=142390 to deal with. As per usual I've fartarsed around trying to get the right incantation, but I think the final patch that I've provided in that ticket is the correct one to go with. It assumes that we want to use the Windows implementations of inet_pton and inet_ntop when and only when that implementation is available. Else use the implementation provided in Socket.xs. Could we please have a new Socket release for testing, followed by a push to blead if the testing doesn't throw up any issues. Feel free to include fixes to other tickets, too, if you wish - but my pressing desire is to get this particular issue addressed ASAP. That I have to continually patch perl source in order to build it is not such a big issue to me. But I've had a complete and utter gutful of all the little unforeseen issues that keep arising as a result of the fact that *my* builds of perl have been built from patched source. Cheers, RobThread Next