[PATCH 0/2] MR868: ntdll, libwine: Avoid comparing the result of pointer arithmetic to zero.

[Zebediah Figura (＠zfigura)]

It's not exactly clear to me why gcc warns about this (and it's hard to find
reference for this specific flavor of -Waddress), but my understanding is that
arithmetic on well-defined pointers will never yield NULL. Of course, we are not
dealing with well-defined pointers here, but fortunately gcc does not complain
if we cast to intptr_t first.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/868