[crossfire] Alsa 1.0.x client sound support.

[Mark Wedel]

  Is anyone actually using alsa 1.0.x with the client sound server?

  It compiles just fine, but doesn't play sounds correctly (to be 
specific, I'm using alsa library 1.0.6).  It compiles as alsa 0.9 
support, but it looks like that should be compatible.

  This isn't a problem with the underlying drivers or alsa library, 
because if I use aplay on the sound file, it plays just fine.

  Looking at the code, it appears that the alsa 0.9 driver is 
significantly different enough that it may in fact make more sense to 
have its own file and not really try to use much of the existing logic 
(all the other sound drivers open the device and thus have a file 
descriptor they use).

  (as an aside, having different programs/executables for different 
sound systems may make sense - right now for example it is impossible to 
compile both the OSS and ALSA driver without re-running configure - it'd 
actually make sense to compile for all the sound systems that are supported)

  But before digging more into getting sound working with alsa 1.0, 
thought I'd ask here to see if other people have it working correctly.