tree 02af623152c9cc2551e0ed828990761cbf31660a
parent 2b866255ed462221c6fa64e888f2d1c2958b7885
author Louis Dionne <ldionne@apple.com> 1553105784 +0000
committer Louis Dionne <ldionne@apple.com> 1553105784 +0000

[libc++][CMake] Clean up some of the libc++ re-exporting logic

Summary:
This change allows specifying the version of libc++abi's ABI to re-export
when configuring CMake. It also clearly identifies which ABI version of
libc++abi each export file contains.

Finally, it removes hardcoded knowledge about the 10.9 SDK for MacOS,
since that knowledge is not relevant anymore. Indeed, libc++ can't be
built with the toolchain that came with the 10.9 SDK anyway because
the version of Clang it includes is too old (for example if you want
to build a working libc++.dylib, you need bugfixes to visibility
attributes that are only in recent Clangs).

Reviewers: dexonsmith, EricWF

Subscribers: mgorny, christof, jkorous, arphaman, libcxx-commits

Differential Revision: https://reviews.llvm.org/D59489

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@356587 91177308-0d34-0410-b5e6-96231b3b80d8