--- ./libcxx/test/tools/clang_tidy_checks/CMakeLists.txt.orig 2025-03-18 18:15:15.000000000 -0500 +++ ./libcxx/test/tools/clang_tidy_checks/CMakeLists.txt 2025-03-22 15:21:45.943189808 -0500 @@ -3,6 +3,7 @@ # the system's libc++. Restoring these setting after testing fixes this issue. set(LLVM_DIR_SAVE ${LLVM_DIR}) set(Clang_DIR_SAVE ${Clang_DIR}) +return() # Since the Clang C++ ABI is not stable the Clang libraries and clang-tidy # versions must match. Otherwise there likely will be ODR-violations. This had