When building declarative dev:

CMake Warning (dev) at /Users/torarne/build/qt/6.x-xcode-16/qtbase/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:3373 (message):
  Qt policy QTP0004 is not set: You need qmldir files for each extra
  directory that contains .qml files for your module.  Check
  https://doc.qt.io/qt-6/qt-cmake-policy-qtp0004.html for policy details.
  Use the qt_policy command to set the policy and suppress this warning.

Call Stack (most recent call first):
  qtdeclarative/src/qml/Qt6QmlMacros.cmake:3220 (__qt_internal_setup_policy)
  qtdeclarative/src/qml/Qt6QmlMacros.cmake:891 (qt6_target_qml_sources)
  qtdeclarative/src/qml/Qt6QmlMacros.cmake:1148 (qt6_add_qml_module)
  qtdeclarative/src/qml/doc/snippets/cmake/qt_target_qml_sources/CMakeLists.txt:23 (qt_add_qml_module)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /Users/torarne/build/qt/6.x-xcode-16/qtbase/lib/cmake/Qt6Core/Qt6CoreMacros.cmake:3373 (message):
  Qt policy QTP0004 is not set: You need qmldir files for each extra
  directory that contains .qml files for your module.  Check
  https://doc.qt.io/qt-6/qt-cmake-policy-qtp0004.html for policy details.
  Use the qt_policy command to set the policy and suppress this warning.

Call Stack (most recent call first):
  qtdeclarative/src/qml/Qt6QmlMacros.cmake:3220 (__qt_internal_setup_policy)
  qtdeclarative/src/qml/Qt6QmlMacros.cmake:891 (qt6_target_qml_sources)
  qtdeclarative/src/qml/Qt6QmlBuildInternals.cmake:304 (qt6_add_qml_module)
  qtdeclarative/src/quicknativestyle/CMakeLists.txt:37 (qt_internal_add_qml_module)
This warning is for project developers.  Use -Wno-dev to suppress it.