I have learned a few new tricks about using FreeBSD ports which I don't know last time, there you go!
For ports which provides configure options, you can actually configure it via -
To show the configuration -
To remove current configuration, or reset it to default -
To build the package from port -
To build the package from port for its dependencies as well -
If you have the port previously installed, and you want to reinstall with different option set, make sure you have the "work" directory deleted in particular port or else the new configure option won't be used.