[PATCH] D157334: [clang] Define _MSC_EXTENSIONS on -gnu if -fms-extensions is set

[Aiden Grossman via Phabricator via cfe-commits]

aidengrossman added a comment.

Since `-fms-extensions` can be enabled on Linux as well, we should probably hoist this further since this patch only accounts for the windows case as I just hoist the conditional to be in `addWindowsDefines`. I'll work on getting another patch version up in a bit.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157334/new/

https://reviews.llvm.org/D157334