CMake warns about accessible/qaccessible.h

CMake Warning (dev) at qtbase/cmake/QtModuleHelpers.cmake:1234 (message):
  Condition is ignored when adding the following header file(s) to the Gui
  module:  File:      accessible/qaccessible.h  Condition:      QT_FEATURE_accessibility  File:      accessible/qplatformaccessibility.h  Condition:      QT_FEATURE_accessibility  The usage of the file(s) is not properly isolated in this or other modules
  according to the condition.  This warning is for the Qt maintainers.
  Please make sure that file include(s) are guarded with the appropriate
  macros in the Qt code.  If files should be added to the module
  unconditionally, please move them to the common SOURCES section in the
  qt_internal_add_module call.
Call Stack (most recent call first):
  qtbase/cmake/QtModuleHelpers.cmake:879 (qt_internal_collect_module_headers)
  qtbase/cmake/QtScopeFinalizerHelpers.cmake:24:EVAL:1 (qt_finalize_module)
  qtbase/src/gui/CMakeLists.txt:DEFERRED
This warning is for project developers.  Use -Wno-dev to suppress it.