Factor out the compatibility parser helper into a base class, so it can be shared by other directives. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240717021312.606116-3-jsnow@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>