[all-commits] [llvm/llvm-project] ebc01b: [libc++] Skip logic for detecting C11 features whe...

[Louis Dionne via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ebc01bbc7a6758743e6383af34619ef1423afa15
      https://github.com/llvm/llvm-project/commit/ebc01bbc7a6758743e6383af34619ef1423afa15
  Author: Louis Dionne <ldionne.2 at gmail.com>
  Date:   2021-08-18 (Wed, 18 Aug 2021)

  Changed paths:
    M libcxx/include/__config
    M libcxx/include/ctime

  Log Message:
  -----------
  [libc++] Skip logic for detecting C11 features when using_if_exists is supported

In the future, we'll want to rely exclusively on using_if_exists for this
job, but for now, only rely on it when the compiler supports that attribute.
That removes the possibility for getting the logic wrong.

Differential Revision: https://reviews.llvm.org/D108297