https://bugs.winehq.org/show_bug.cgi?id=47224
--- Comment #11 from Gcenx gcenx83@gmail.com --- (In reply to Rosanne DiMesio from comment #9)
This bug is about the WineHQ packages, and those have been reported fixed. Problems that occur when you build Wine yourself without mingw should be reported separately as Wine bugs, not Packaging bugs.
I only mentioned the other bug as you yourself mentioned the other bug. (I also confirmed that without mingw the same issue occurs I posted into that bug)
But your right it does seem that the Winebuilder now has mingw installed.