Thanks, that was my expectation. To be clear, I ran WSL just to assert that the networking tests are correct & that they pass on Linux ✅. ❌When it comes to Windows, unfortunately I wasn’t able to find a baseline build where the network tests are passing ☹🤷‍♂️ * Running the tests using the official Windows binaries for Emacs 28.1 fail ❌ * Same applies when running the tests from my dev build of Emacs, using the latest master branch ❌ * And of course, same applies to my patched Emacs that has UDP support ❌ So my conclusion thus far is that the network tests didn’t pass on Windows for a while now, and I have no idea if our UDP patch is introducing regressions since I don’t have a good baseline. Sent from Mail for Windows From: Eli Zaretskii Sent: Thursday, January 12, 2023 2:08 AM To: Robert Pluim Cc: matei.alexandru@live.com; 45821@debbugs.gnu.org Subject: Re: bug#45821: Emacs UDP support on Windows > From: Robert Pluim > Cc: Eli Zaretskii , "45821@debbugs.gnu.org" > <45821@debbugs.gnu.org> > Date: Thu, 12 Jan 2023 10:22:17 +0100 > > >>>>> On Wed, 11 Jan 2023 13:23:03 +0000, Alex Matei said: > > Alex> ✅Network tests are passing in WSL Emacs.. => Windows has issues, and might have always had them? 🤷‍♂️ > > Thatʼs without a doubt true. Iʼm using MSYS2 to build Emacs and run > the tests, Iʼve not tried WSL at all. Eli, what environment should we > be using to build and test Emacs on MS-Windows? I know there are > legion, and I always forget the differences. The environment should be native Windows, not WSL. WSL is Unix running in a VM. As for "using MSYS2", if that boils down to invoking Emacs from the MSYS2 Bash prompt, it is still native Windows, and should not affect the tests.