Created attachment 477942 [details] emerge --info =media-libs/phonon-gstreamer-4.9.0-r1 (and 4.9.0, the only non live versions) hava a mask: !<dev-qt/qtwebkit-4.10.4:4[gstreamer] but `dev-qt/qtwebkit-4.10.4` is masked in the profile.
It's blocking all versions *prior* to dev-qt/qtwebkit-4.10.4, which right now is 4.8.6-r1 and 4.8.7.
The blocker is satisfied by disabling USE=gstreamer per-package on dev-qt/qtwebkit:4 or not having qtwebkit:4 installed at all. qtwebkit:4 is vulnerable to many webkit security bugs, and its USE=gstreamer is using gstreamer:0.10 instead of gstreamer:1.0, where the former (0.10) also has various known vulnerabilities in the more specific plugins that make the gstreamer stack useful (gst-plugins-good:0.10 etc). If you need qtwebkit:4 for some reason still, I suggest disabling USE=gstreamer on just qtwebkit:4 via /etc/portage/package.use I don't know what the effect of qtwebkit:4[-gstreamer] would be to Amarok
Amarok certainly doesn't care, in the meantime there is an ~arch revbump disabling wikipedia widget to remove the only qtwebkit dependency.
So, closing as there is nothing to do here and the blocker doing its job, as seen in the linked bug.
*** Bug 624396 has been marked as a duplicate of this bug. ***