--- clang/lib/DirectoryWatcher/CMakeLists.txt	2023-08-27 22:55:16.799774629 +0800
+++ clang/lib/DirectoryWatcher/CMakeLists.txt	2023-08-27 23:08:13.369562646 +0800
@@ -6,11 +6,7 @@ 
 set(DIRECTORY_WATCHER_LINK_LIBS "")
 
 if(APPLE)
-  check_include_files("CoreServices/CoreServices.h" HAVE_CORESERVICES)
-  if(HAVE_CORESERVICES)
-    list(APPEND DIRECTORY_WATCHER_SOURCES mac/DirectoryWatcher-mac.cpp)
-    set(DIRECTORY_WATCHER_LINK_LIBS "-framework CoreServices")
-  endif()
+  list(APPEND DIRECTORY_WATCHER_SOURCES default/DirectoryWatcher-not-implemented.cpp)
 elseif(CMAKE_SYSTEM_NAME MATCHES "Linux")
   check_include_files("sys/inotify.h" HAVE_INOTIFY)
   if(HAVE_INOTIFY)