Support hw.snd.default_unit sysctl.
If the hw.snd.default_unit is set to anything except zero, /dev/dsp0 is
not available to programs using portaudio, since it assumes that /dev/dsp
and /dev/dsp0 are the same device.
Submitted by: shurd
Approved by: firstname.lastname@example.org (maintainer timeout)
(Only the first 10 of 68 ports in this commit are shown above. )
Update portaudio to v19/Remove portaudio2 
Chase portaudio change
Add patches from debian for games/cultivation
Add patches from upsteam for audio/rezound
Mark py-fastaudio as broken
Approved by: maintainer