# 

  find_path(X11_XKB_INCLUDE_PATH X11/XKBlib.h "${X11_INC_SEARCH_PATH}")
  if (X11_XKB_INCLUDE_PATH)
    MACRO_PUSH_REQUIRED_VARS()
    set(CMAKE_REQUIRED_LIBRARIES "${X11_LIBRARIES} ${CMAKE_REQUIRED_LIBRARIES}")
    check_library_exists(X11 XkbLockModifiers "" HAVE_XKB)
    MACRO_POP_REQUIRED_VARS()
    if (HAVE_XKB)
        set(XKB_FOUND TRUE)
    endif (HAVE_XKB)
  endif (X11_XKB_INCLUDE_PATH)