gistfile1.txt

      "LIBCXX_CXX_ABI": "default",
      "LIBCXX_ENABLE_EXCEPTIONS": "ON",
      "LIBCXX_ENABLE_THREADS": "ON",
      "LIBCXX_ENABLE_MONOTONIC_CLOCK": "ON",
      "LIBCXX_LIBDIR_SUFFIX": "",
      "LIBCXX_USE_COMPILER_RT": "ON",
      "LIBCXX_ENABLE_STATIC_ABI_LIBRARY": "ON",
      "LIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY": "ON",

      "LIBCXXABI_ENABLE_EXCEPTIONS": "ON",
      "LIBCXXABI_ENABLE_THREADS": "ON",
      "LIBCXXABI_USE_COMPILER_RT": "ON",
      "LIBCXXABI_ENABLE_SHARED": "OFF",
      "LIBCXXABI_ENABLE_STATIC_UNWINDER": "ON",
      "LIBCXXABI_INSTALL_STATIC_LIBRARY": "OFF",
      "LIBCXXABI_HERMETIC_STATIC_LIBRARY": "ON",
      "LIBCXXABI_USE_LLVM_UNWINDER": "ON",
      "LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY": "ON",
      "LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_STATIC_LIBRARY": "ON",
      "LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL": "OFF",

      "LIBUNWIND_ENABLE_THREADS": "ON",
      "LIBUNWIND_ENABLE_CROSS_UNWINDING": "OFF",
      "LIBUNWIND_USE_COMPILER_RT": "ON",
      "LIBUNWIND_ENABLE_SHARED": "OFF",
      "LIBUNWIND_INSTALL_LIBRARY": "OFF",