[PATCH] D51955: Create infrastructure for defining and testing feature test macros

[Louis Dionne via Phabricator via cfe-commits]

ldionne accepted this revision.
ldionne added a comment.
This revision is now accepted and ready to land.

Thanks! I don't like feature test macros either, but we should still strive for conformance.


https://reviews.llvm.org/D51955