[PATCH] D38954: [Sema] -Wzero-as-null-pointer-constant: don't warn for system macros.

[Nico Weber via Phabricator via cfe-commits]

thakis added a comment.

As said on the bug, this matches gcc's behavior, and with this you won't see this warning for NULL. I don't think this is better.


Repository:
  rL LLVM

https://reviews.llvm.org/D38954