FindOpenAL

Finds Open Audio Library (OpenAL). This module defines OPENAL_LIBRARY OPENAL_FOUND, if false, do not try to link to OpenAL OPENAL_INCLUDE_DIR, where to find the headers.

$OPENALDIR is an environment variable that would correspond to the ./configure --prefix=$OPENALDIR used in building OpenAL.

Created by Eric Wing. This was influenced by the FindSDL.cmake module.