OpenAL on Linux (was Re: [PATCH] Croquet.sh on Ubuntu Breezy)

Hi,

similarly to what Bert Freudenberg suggested to find the OpenGL library
on Linux, the following finds the normal (non -dev) OpenAL library:

OpenALUnix>>openALLibraryName
        ^ SmalltalkImage current osVersion = 'linux'
                ifTrue: ['libopenal.so.0']
                ifFalse: ['openal']

If this is used, then there is no need to override OpenAL>>initialize
in OpenALUnix.

(details at http://bugs.impara.de/view.php?id=3427)

Conrad.