Package: libhandy-0.0-dev Version: 0.0.3-1 Severity: serious I see that libhandy-0.0.pc has this line: Requires: gtk+-3.0
That means that libhandy-0.0-dev needs a dependency on libgtk-3-dev By the way, GNOME 3.32 components might start depending on libhandy. (Buster will include GNOME 3.30 so Unstable is fine for now.) Thanks for packaging this! Thanks, Jeremy Bicha