gobject-introspection now emits many more warnings for malformed comments, and they fail the build. https://bugzilla.gnome.org/show_bug.cgi?id=673656
https://bugzilla.gnome.org/show_bug.cgi?id=662152
The library is introspected, and should not require using Pulseaudio directly. With help from Giovanni Campagna <scampa.giovanni@gmail.com> (introspection annotations, build fixes) https://bugzilla.gnome.org/show_bug.cgi?id=629455