Recently I had to help Xylemon get sndio working in XMMS.
The OpenBSD ports tree had a plugin, but it's very hard to track
these sources down because XMMS has been marked as 'deprecated' for
a while.

I found them in one of the FTPs that have not-yet wiped all references
to this, and made a tiny Makefile. This was tested by Xylemon under
Arch but anyone should have a fairly simply job of making it compile
under OpenBSD or other UNIX systems if they choose to.

I just want to prevent it from being lost in case anybody needs it.
Credit goes to the author listed in the .c file.

Source tarball

-- Marco