PulseAudio support

[David Michael]

Hi,

I just pushed an update to my Hurd distro build scripts for Fedora 26
at https://github.com/dm0-/gnuxc which also includes a translator for
/dev/audio.  I've uploaded the translator source separately if anyone
else is interested:

    https://github.com/dm0-/hurd-rump-audio

The README has details, but the summary is that the translator
pretends to be a Solaris audio device and acts as a rump kernel client
converting I/O to the NetBSD audio device.  Since PulseAudio has a
Solaris module, this allows audio playback from any programs that use
PulseAudio without patching them or modifying their build processes.
(That includes IceCat/Firefox, so e.g. web video sites are fully
working with this.)

Feel free to fork it if it's useful.

Thanks.

David