portupgrade & make config-recursive

[Guillermo MORENO-SOCIAS]

   Hello.
   I use portupgrade -aRr to upgrade my ports collection.  I would
like to know if there is a way to do the equivalent of "make
config-recursive" with portupgrade so one would not have to watch the
console to intervene now and then.  I have read "man portupgrade" but
have not been able to find any way to do this.
   Thanks in advance.
                                      Guillermo Moreno-Socias