cc-default-applications-panel.c: In function ‘cc_default_applications_panel_dispose’:
cc-default-applications-panel.c:73:7: warning: implicit declaration of function ‘gnome_da_xml_free’
cc-default-applications-panel.c:73:7: warning: nested extern declaration of ‘gnome_da_xml_free’
When the theme or screen changes, we need to make sure that
the previous handler for the theme-changed signal is disconnected
to avoid the callback being called when the panel has been unloaded.
https://bugzilla.redhat.com/show_bug.cgi?id=610289
