RequiredUseDefaults: version 1.4-r1: profile: 'default/linux/amd64/17.0/musl' (61 total) failed REQUIRED_USE: ( aac || mp3 || opus || twolame || vorbis )
  RequiredUseDefaults: version 1.4-r1: profile: 'default/linux/amd64/17.0/musl' (61 total) failed REQUIRED_USE: ( alsa || jack || pulseaudio )