[libcxx-dev] Requiring Mac OS >= 10.12 to build libc++.dylib

[Louis Dionne via libcxx-dev]

Hi,

This is a heads up that building the libc++ dylib on Mac OS will require Mac OS >= 10.12 once I land D74489. This will allow us to perform code simplifications in libc++, which is sorely needed because maintenance has become difficult with time. Please note that this only means that Mac OS >= 10.12 will be required to build the dylib.

If you are building the libc++ dylib on Mac OS < 10.12, please reach out so we can talk about a way forward.

Cheers,
Louis