bug#45821: Emacs UDP support on Windows

[Robert Pluim]

>>>>> On Wed, 11 Jan 2023 13:23:03 +0000, Alex Matei <matei.alexandru@live.com> 
>>>>> 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.

Robert
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