openal 1.23.1-2

[Takashi Yano]

The following packages have been uploaded to the Cygwin distribution:

* openal-1.23.1-2
* openal-config-1.23.1-2
* openal-examples-1.23.1-2
* libopenal1-1.23.1-2
* libopenal-devel-1.23.1-2

OpenAL Soft is an LGPL-licensed, cross-platform, software
implementation of the OpenAL 3D audio API. OpenAL provides capabilities for
playing audio in a virtual 3D environment. Distance attenuation, doppler shift,
and directional sound emitters are among the features handled by the API. More
advanced effects, including air absorption, occlusion, and environmental
reverb, are available through the EFX extension. It also facilitates streaming
audio, multi-channel buffers, and audio capture.

- Enable OSS support
- Fix an upstream bug that playback via portaudio does not work at all.