https://bugs.winehq.org/show_bug.cgi?id=55958
--- Comment #6 from NM64+bugs.winehq.org@PM.me --- (In reply to Fabian Maurer from comment #5)
You don't seem to have a working 32bit compiler. You need to build it in a chroot AFAIK, but since I couldn't get that to work on Ubuntu either I won't be much help here.
So then my presumption is correct in that the instructions are on wiki.winehq.org/Regression_Testing are indeed outdated since anything Ubuntu-based only comes in 64bit nowadays?