gal does not depend directly on alsa and this dependence should be removed. There is only implicit optional dependence on alsa >=0.9: gal depends on more gnome components, these components depends on gnome-libs, gnome-libs can optionally depend on esound, and esound can optionally depend on alsa >=0.9.
sounds right. gal doesn't have anything to do with alsa. fixed in 0.22