Allow Zig to be built with clang 11 and -Werror

This was brought to the horizon when using zig-bootstrap to cross compile
Zig for windows-gnu.
66d6930b5cTimon Kruiper committed on 11/18/2020, 11:09:44 AM· committed by Veikka Tuominenparentbef140c
2 files changedLine totals unavailable