Looks like a typo (missing "?") in REQUIRED_USE: 32 oss? ( audio ) 33 jack ( audio ) 34 portaudio? ( audio ) emerge output: The following REQUIRED_USE flag constraints are unsatisfied: jack The above constraints are a subset of the following complete expression: python_single_target_python2_7? ( python_targets_python2_7 ) exactly-one-of ( python_single_target_python2_7 ) audio? ( any-of ( alsa oss jack portaudio ) ) alsa? ( audio ) oss? ( audio ) jack ( audio ) portaudio? ( audio ) analog? ( filter ) digital? ( filter analog ) pager? ( filter analog ) qt4? ( filter ) uhd? ( filter analog ) fcd? ( any-of ( alsa oss ) ) wavelet? ( analog ) wxwidgets? ( filter analog )
Fixed, thanks for the report.