• Add Sndio backend from [1] and fix it
  • Remove dead code
  • Fix format selection and playback with raw devices
• Fix OSS backend
  • Remove dead code
  • Don't open the device in non-blocking mode. There is no error handling for short writes and looking at how audio_play() is used in say.c it is expected to block.
  • Fix format selection
  • Let the kernel handle sample conversion instead of doing it in the backend
• Make NAS support optional
• Make installing dictionary database tools optional
• Add LICENSE

Obtained from: OpenBSD [1] (based on)
Approved by: lme (mentor)
Differential Revision: https://reviews.freebsd.org/D10828