alsa-project/alsa-gobject issue #47 was opened from takaswie: Although each library in alsa-gobject uses GQuark to propagate error information, the symbol of GQuark is not exported yet by symbol mapping file of each library: * src/ctl/alsactl.map * src/timer/alsatimer.map * src/seq/alsaseq.map * src/hwdep/alsahwdep.map * src/rawmidi/alsarawmidi.map This issue brings inconvenience for [Rust bindings](https://github.com/alsa-project/alsa-gobject-rs) to implement [glib::error::ErrorDomain](https://gtk-rs.org/docs/glib/error/trait.ErrorDomain.html) for each GQuark. Issue URL : https://github.com/alsa-project/alsa-gobject/issues/47 Repository URL: https://github.com/alsa-project/alsa-gobject
