I prompted Claude Opus 5 (I don't really have the Fable tokens to spare) to do just that (via winelib). It's gotten to the point where it opens, runs for three seconds, and abruptly exits.

edit: got it running but a ton of things are do-nothing, and the fonts are completely rubbish. Not really worth posting ATM, but I'll see if it can fix things further by running the UI tests and telling it some of the things that don't work...

(That it was able to build and run at all with just a few prompts is a HFS moment, though!)

An interesting thing that came up is that MSVC uses 32-bit longs instead of 64, so a pure gcc/winelib build is another level of 64-bit porting.

Claude then suggested using mingw instead, which makes sense...