[PATCH] D53879: Make libc++'s versioning namespace customizable

[Kristina Brooks via Phabricator]

kristina added a comment.

In https://reviews.llvm.org/D53879#1281207, @EricWF wrote:

> Actually, I'll make the change as a follow up patch.


Sounds good, I think a blank string, as a special case, explicitly being passed down fairly clearly conveys the intentions to opt out of inline namespaces and versioning.


https://reviews.llvm.org/D53879