[mythtv] Fwd: Ticket #4397: win32 dependancy resolver and build script

[Andrei Tanas]

> We only need a handful of function declarations from dsound.h, I think
> the
> easiest thing to do might be to place these declarations in compat.h
> and get
> rid of this dependency altogether.

Another option is not to compile audiooutputdx at all -  in its current
state it's not usable anyway (I wrote and tested audiooutputwin and I am
satisfied with the way it works).