castxml: fix CLANG_RESOURCE_DIR; enable tests

  ];

  cmakeFlags = [

    (lib.cmakeOptionType "path" "CLANG_RESOURCE_DIR" "${lib.getDev libclang}")

    (lib.cmakeOptionType "path" "CLANG_RESOURCE_DIR"

       "${lib.getLib libclang}/lib/clang/${lib.versions.major libclang.version}")

    (lib.cmakeBool "SPHINX_HTML" withHTML)

    (lib.cmakeBool "SPHINX_MAN" withManual)

  ] ++ lib.optionals stdenv.isDarwin [

    (lib.cmakeOptionType "path" "Clang_DIR" "${lib.getDev libclang}/lib/cmake/clang")

  ];

  # 97% tests passed, 97 tests failed out of 2881

  # mostly because it checks command line and nix append -isystem and all

  doCheck = false;

  doCheck = true;

  strictDeps = true;

  # -E exclude 4 tests based on names

  # see https://github.com/CastXML/CastXML/issues/90

  checkPhase = ''

    runHook preCheck

    ctest -E 'cmd.cc-(gnu|msvc)-((c-src-c)|(src-cxx))-cmd'

    runHook postCheck

  '';

  passthru.tests = testers.testVersion {

    package = finalAttrs.finalPackage;

  };