make.conf modifications?

[Noah]

FreeBSD-4.8-STABLE

okay when I am 'make install' new proggies in the /usr/ports directory an
install will fail because one of the associated programs has been Updated in
/usr/ports .   it is Necessary for me to go to the programs /usr/port
directory and deinstall and reinstall it with its new version.  any way to
make this process more transparent and all associated programs automatically
get upgraded or reinstalled with the more recent version.

is there a modification that i can place in the make.conf file to do this?

- Noah