Re: [PATCH 0/2] MR4884: include/winnt.h against clang++.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about include/winnt.h:
>  FirmwareTypeMax
>
> } FIRMWARE_TYPE, *PFIRMWARE_TYPE;
>
> +#if (defined(__clang__) || defined(__GNUC__)) && defined(__has_builtin)
> +#  define WINE__HAS_BUILTIN(x) __has_builtin(x)
> +#else
> +#  define WINE__HAS_BUILTIN(x) 0
> +#endif

I think you could just ensure that `__has_builtin` always defined (like we do for `__has_attribute`).