Coming back to this. It has been suggested by ssuominen that the "audio" flag should be united with "sound". It's used by the following packages:
games-rpg/drascula:audio - Install optional audio files media-libs/libsdl:audio - Control audio support (disable at your own risk) net-libs/opal:audio - Enable audio support net-libs/ptlib:audio - Enable audio support Not sure if sound or audio is the better name. There's also a "sounds" local flag which generally means "install optional sound data". Maybe games-rpg/drascula should use this one instead? Ulrich