GSettings Schema
GSettings is the configuration system used by the GNOME 3 desktop. It replaces the older GConf system, which was used in GNOME 2. GSettings has pluggable backends, the 'native' one for GNOME is using DConf to store settings. The GSettings API and utilities are part of the glib2 package.
Programs which use GSettings install schema information including default values in the directory %{_datadir}/glib-2.0/schemas. Schema files are xml files with the extension .gschema.xml. At runtime, GSettings uses the schemas in a compiled binary (but arch-neutral) form, which is created by running the glib-compile-schemas utility. glib-compile-schemas must be run whenever the set of installed schemas changes.
%postun glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || : %post glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || :