https://bugs.winehq.org/show_bug.cgi?id=48265
--- Comment #7 from Alex S iwtcex@gmail.com --- (In reply to Damjan Jovanovic from comment #6)
Clang 4.2.1 is being used.
Oh, clang is really not advised unless you want to debug it: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231010.