https://bugs.winehq.org/show_bug.cgi?id=48054
--- Comment #1 from François Gouget fgouget@codeweavers.com --- Running the same command that wtbbuild uses to compile binaries on my Debian 10 development machine yields a binary that has the same 36 failures:
https://testbot.winehq.org/JobDetails.pl?Key=59488
The build command was:
mkdir native && cd native && ../src/configure --enable-win64 --without-x --without-freetype --disable-winetest && time make __tooldeps__ cd .. mkdir exe32 && cd exe32 && time ../src/configure --host=i686-w64-mingw32 --with-wine-tools=../native --without-x --without-freetype --disable-winetest && time make buildtests
So it does not seem be related to the way we do the build (simple ./configure && make vs the above), but to the compiler version.