portupgrade -P and local changes

[Harlan Stenn]

I have a couple of ports where I am using a Makefile.local to provide some
customizations for the local environment (I think they are for postfix+SASL,
and apache2+the experimental modules, but I could be mistaken) where
"stock" prebuilt packages are available.

When I update the installed packages on the box, I like to use:

 portupgrade -Ppa

The problem I have is that when these two ports get upgraded, portupgrade
fetches and installs the prebuilt packages, which means I have to remember
to then reinstall these two packages from the ports tree.

Is there a way to tell portupgrade that it should not *fetch* prebuilt ports
for these two packages?  If the packages are already there I'm fine having
them installed (as it means they were built using the Makefile.local values
and wrapped as a package from the -p flag).

H