[PATCH] D53797: If libc++abi library path is given, use it to reexport

[Isuru Fernando via Phabricator]

isuruf added a comment.

In https://reviews.llvm.org/D53797#1283049, @ldionne wrote:

> Can you explain the problem that this change is solving?


Before this change libc++.dylib was linking to system libc++abi.dylib even though I gave LIBCXX_CXX_ABI_LIBRARY_PATH path to a newly built libc++abi.dylib

> I'll admit I don't fully understand the logic governing whether we re-export the system libc++abi symbols or use the export list: this area of the build is pretty messy.

Me neither. I just wanted libc++.dylib to link to the given libc++abi.dylib instead of the system one.


Repository:
  rCXX libc++

https://reviews.llvm.org/D53797