[libcxx-commits] [PATCH] D151056: [libcxx][libcxxabi][libunwind] Honor CMAKE_SYSROOT in tests

[Louis Dionne via Phabricator via libcxx-commits]

ldionne added a comment.

I just did some digging and the reason for setting `-isysroot` manually in these config files is basically that CMake will resolve `clang++` to the result of `xcrun --find clang++` when it sets `CMAKE_CXX_COMPILER`: https://gitlab.kitware.com/cmake/cmake/-/issues/19180. Without this issue, we wouldn't be setting `-isysroot` manually at all.


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https://reviews.llvm.org/D151056