OpenBSD support?

you know openbsd has got new sound subsystem some time ago, called sndio.
I wrote the output plugin:
I have no idea about autotools and such, so I just patched autogenerated
makefile to make it work (it must be linked with -lnsdio).
If you need help testing or whatever, contact me.

Uhmm, so I made a diff against svn revision finally.
Here it is:

Committed to SVN as r2312. Thanks, polachok.