enable CUE sheet parsing

Packages describing “cue” as local USE flag

Package “cue” Flag Description
media-sound/qmmp enable CUE sheet parsing
app-misc/tracker-miners Enable cue sheet parsing
media-sound/mpd Enable CUE sheet support
media-plugins/audacious-plugins Support CUE sheets using the libcue library
media-sound/audiotools Enable CUE sheet support

All packages providing a “cue” USE flag (4)