This is required to be able to move the printing system into
it's own library.
Change-Id: If70a55be4c4413f9cd917a30d1b368f32c1145e4
Reviewed-on: http://codereview.qt.nokia.com/3207
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>