forwardport: make sure the gst backend is compiled correctly against the new AudioOutput interface
forwardport: make sure the gst backend is compiled correctly against the new AudioOutput interface

KDE/phonon-directshow,shadeslayer/phonon-gstreamer,KDE/phonon-xine,KDE/phonon-xine,KDE/phonon-gstreamer,KDE/phonon-gstreamer,shadeslayer/phonon-gstreamer,KDE/phonon-waveout,KDE/phonon-xine,shadeslayer/phonon-gstreamer,KDE/phonon-directshow,KDE/phonon-quicktime,KDE/phonon-mmf