[Bug 39580] error using va_start() macro

https://bugs.winehq.org/show_bug.cgi?id=39580

--- Comment #5 from Sergey Isakov  ---
(In reply to Dmitry Timoshkov from comment #2)
> https://llvm.org/bugs/show_bug.cgi?id=8851
>
> Probably you should know before spending more time on this that Wine can't
> work on 64-bit MacOS X due to technical incompatibilities.

As you see recent Clang has support for this function and I reported a bug in
wine sources that uses va_list instead of _builtin_ms_va_list. They are not the
same for the clang.