Re: [PATCH v2 0/2] MR5809: winecrt0, msvcrt: Implement static constructor support.

[Jacek Caban (＠jacek)]

> MinGW runtime doesn't seem to have them (or maybe I just didn't find them).

See `__do_global_dtors`. It's registered using `atexit`, which is a static function that, in case of DLLs, executes on `PROCESS_DETACH`.

Also, we currently allow exchanging static libraries between MSVC and MinGW targets (so you may build Wine in one mode and use it to build with `winegcc` for the other target). This may get tricky as we extend static libraries, but I think it would be nice to keep if we can. For that, using `__GNUC__` like you do can't work.