What is the meaning of the Cmake error stating that Wayland (WAYLAND_CLIENT_INCLUDE_DIR) is missing?

edit

The CMake error stating that Wayland (WAYLANDCLIENTINCLUDE_DIR) is missing means that the CMake build system cannot find the necessary include files for the Wayland display protocol library. This could be due to the library not being installed on the system, or the include files might be located in a non-standard location that CMake is not aware of. To fix this error, you need to ensure that the Wayland library and its development package are installed, and specify the correct include directory path in your CMake or project configuration.