lib: Drop use of deprecated g_type_class_add_private()
Use G_DEFINE_TYPE_WITH_PRIVATE instead. It’s existed since GLib 2.38, so we need to bump our dependency.
Signed-off-by: Philip Withnall withnall@endlessm.com
Use G_DEFINE_TYPE_WITH_PRIVATE instead. It’s existed since GLib 2.38, so we need to bump our dependency.
Signed-off-by: Philip Withnall withnall@endlessm.com