https://bugs.winehq.org/show_bug.cgi?id=40391
--- Comment #3 from Alexandre Julliard julliard@winehq.org --- (In reply to Jens Reyer from comment #2)
(In reply to Sebastian Lackner from comment #1)
[...] In general it seems like a bad idea to use maintainer mode for building packages though. Unless you use exactly the same build toolchain as Alexandre, there is always a risk of (harmless) compiler warnings.
Just to be sure: you see the risk only in the compiler warnings, and them being handled as errors in maintainer mode? But not in rebuilding fonts and icons?
There is definitely a risk too, particularly for fonts. They are supposed to be built with our forked version of fontforge (https://source.winehq.org/git/fontforge.git), that contains a couple of fixes compared to the upstream version.