Reconfiguring FreeBSD Ports

make rmconfig option

The simplest one is type command make rmconfig. First login as root; go into the directory containing the port and type:
# cd /usr/ports/www/apache22
# make rmconfig
Output:

===> Removing user-configured options for apache-2.2.8

Use 'make config' to modify settings

Another option is type make config.
# make config
# make install clean
To display OPTIONS config for port, enter:
# make showconfig
See the man page ports for more information:
$ man ports