depends dbus-glib  &&
depends intltool   &&
depends gtk+2      &&
depends policykit  &&

optional_depends gobject-introspection \
                 "--enable-introspection" \
                 "--disable-introspection" \
                 "to enable GObject introspection" &&

optional_depends gtk-doc                 \
                 "--enable-gtk-doc"      \
                 "--disable-gtk-doc"     \
                 "Enable devhelp docs?"

.