Enable more GCC/LD flags also on GNU/Hurd.
Enable more GCC/LD flags also on GNU/Hurd.

(the toolchain is the same, after all)

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