[PATCH] D55791: [libcxx] Simplify conditional definition of _LIBCPP_HAS_NO_ALIGNED_ALLOCATION

[Louis Dionne via Phabricator]

ldionne added a comment.

I'm putting up a review for this simple change in case the intent was to allow users to define `_LIBCPP_HAS_NO_ALIGNED_ALLOCATION` before including a libc++ header. I don't expect that was the intent, but just in case.

If that happens to be true, I think that intent should be documented and a CMake `#define` should be added. I'd also like to understand why that use case is something we need to support.


Repository:
  rCXX libc++

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55791/new/

https://reviews.llvm.org/D55791