https://bugs.winehq.org/show_bug.cgi?id=56454
--- Comment #16 from sldev sldev@free.fr --- (In reply to Zeb Figura from comment #15)
That's odd. Does a manual build without that patch work?
Nope... O.O
In fact, I cannot rebuild a working version of Wine on this computer any more, while all the versions I compiled on it before the 16th of March still work ! I reverted every package update I did after this date, to no avail.
This is incredible, and something I never saw happening so far ! If you have any idea about what could cause wineboot to eat up 100% of a core and never finish when built on a computer and not another, I'm all ears...
In any case, I rebuilt Wine 9.4 with the loader.c patch on another PC, and installed the resulting package on both that second PC and the "broken" PC, and it works like a charm, indeed also fixing the binfmt_misc permission bug for me !
Case closed. :-)