emerge -va ginga

These are the packages that would be merged, in order:

Calculating dependencies /

!!! Invalid or corrupt dependency specification:

invalid atom: 'dev-libs/DirectFB-extra[ffmpeg]'

('ebuild', '/', 'media-libs/gingacc-system-1.0.1', 'merge')

>=dev-util/ginga-helper-cmake-1.0.1 >=media-libs/ginga-util-1.0.1 >=media-libs/gingacc-connector-1.0.1 media-libs/libpng media-libs/jpeg dev-libs/DirectFB dev-libs/DirectFB-extra[ffmpeg] media-libs/xine-lib[directfb] >=dev-util/cmake-2.6.2-r1 >=sys-apps/findutils-4.4.0

This package can not be installed. Please notify the 'media-libs
/gingacc-system-1.0.1' package maintainer about this problem.
... done!