RequiredUseDefaults: version 2.16: profile: 'default/linux/amd64/17.0/musl' (61 total) failed REQUIRED_USE: exactly-one-of ( pulseaudio portaudio gr-audio ) RequiredUseDefaults: version 2.17.2: profile: 'default/linux/amd64/17.0/musl' (61 total) failed REQUIRED_USE: exactly-one-of ( pulseaudio portaudio gr-audio )