device filtering support

[Segher Boessenkool]

>>> select() is portable just fine; you just don't have a fast
>>> implementation of it on your platform.
>
> No, it's not.  I brought this up when Windows support was first being
> seriously discussed a couple years ago.  A form of select() is  
> implemented
> on Windows, but only for network sockets.

Okay, okay.  "You don't have a fast *and correct* implementation
of it on your platform".  You can still implement it yourself, it
is portable just fine (you _have_ it working after all!)


It also is painful for you.


Segher