[Bug bootstrap/67363] [6 Regression] r227188 breaks build for mingw-w64

[rainer@emrich-ebersheim.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67363

--- Comment #20 from Rainer Emrich <rainer@emrich-ebersheim.de> ---
(In reply to İsmail Dönmez from comment #18)
> (In reply to John David Anglin from comment #17)
> > Fixed on hppa*-*-hpux*.
> 
> Also fixes mingw-w64, thank you!

Confirmed, bootstraps on native x84_64-w64-mingw32 again.