tree 56db988796f2476342779c23ad8b4b6a59722d27
parent b69a45ca640486bb4a517512c9522a264e166351
author David Tenty <daltenty@ibm.com> 1636479884 -0500
committer Copybara-Service <copybara-worker@google.com> 1636491950 -0800

[libcxx][CI][AIX] Switch to LLVM_ENABLE_RUNTIMES

and to the new `runtimes` top level CMakeLists.txt since the old path is now deprecated. This requires a slight adjustment of the libcxxabi CMake, since there are required macro definitions we previously got via the `llvm/CMakeList.txt` path.

Reviewed By: ldionne, #libc, #libc_abi

Differential Revision: https://reviews.llvm.org/D113403

GitOrigin-RevId: 2b416b46479d2dbe749e90d7c5344f05b4e35abc