[all-commits] [llvm/llvm-project] 529ac3: [libc++abi] Fix the standalone build after the __c...

[Louis Dionne via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 529ac33197f6408952ae995075ac5e2dc5287e81
      https://github.com/llvm/llvm-project/commit/529ac33197f6408952ae995075ac5e2dc5287e81
  Author: Louis Dionne <ldionne at apple.com>
  Date:   2020-10-22 (Thu, 22 Oct 2020)

  Changed paths:
    M libcxxabi/CMakeLists.txt
    M libcxxabi/test/libcxxabi/test/config.py
    M libcxxabi/test/lit.site.cfg.in

  Log Message:
  -----------
  [libc++abi] Fix the standalone build after the __config_site change

In 5d796645, we stopped looking at the LIBCXXABI_LIBCXX_INCLUDES variable,
which broke users of the Standalone build. This patch reinstates that
variable, however it must point to the *installed* path of the libc++
headers, not the libc++ headers in the source tree (which has always
been the case, but wasn't enforced before).

If LIBCXXABI_LIBCXX_INCLUDES points to the libc++ headers in the source
tree, the `__config_site` header will fail to be found.