Louis Dionne ebc01bbc7a [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
2021-08-18 11:53:34 -04:00
..
2020-04-08 18:00:13 -04:00