Now that https://reviews.llvm.org/D78200 has landed, there should be
no problem with those tests. If there is, it is OK to revert this.
set(LIBCXX_LINK_TESTS_WITH_SHARED_LIBCXXABI OFF CACHE BOOL "")
set(LIBCXX_LINK_TESTS_WITH_SHARED_LIBCXX OFF CACHE BOOL "")
-# FIXME: Remove this when https://reviews.llvm.org/D78200 is merged.
-set(LIBCXX_ENABLE_FILESYSTEM OFF CACHE BOOL "")
-
set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
set(LIBCXX_TARGET_TRIPLE "${CMAKE_C_COMPILER_TARGET}" CACHE STRING "")
set(LIBCXX_SYSROOT "${DEFAULT_SYSROOT}" CACHE STRING "")