Warnings from Accessibility code

At compile time:

QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/cache_adaptor.h does not include QT_BEGIN_HEADER
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/deviceeventcontroller_adaptor.h does not include QT_BEGIN_HEADER
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/socket_interface.h does not include QT_BEGIN_HEADER
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/socket_interface.h does not include QT_BEGIN_NAMESPACE
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/cache_adaptor.h does not include QT_BEGIN_HEADER
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/deviceeventcontroller_adaptor.h does not include QT_BEGIN_HEADER
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/socket_interface.h does not include QT_BEGIN_HEADER
QtPlatformSupport: WARNING: /depot/fkleint/qt-5/qtbase/src/platformsupport/socket_interface.h does not include QT_BEGIN_NAMESPACE

The headers should probably go to some subfolder of platformsupport and be named _p.h to silence syncqt.

At runtime (Linux):

Qt at-spi: error getting the accessibility dbus address: "The name org.a11y.Bus was not provided by any .service files"
Accessibility DBus not found. Falling back to session bus.