port uninstall package does not remove entry in dependency list.

[agentmonkey@…]

After going through a few upgrades via "port -a upgrade" I noticed that the upgrades only deactivated older versions of packages. After uninstalling the inactive ports manually (I needed to use -f since inactive ports can still have dependents) I noticed that their entries in the "dependency list" are not removed. For example:

~ $ sudo port installed | grep apr

apr @1.2.6_0 (active) apr-util @1.2.6_0 (active)

-= rom@leviathan =- Sun May 07, 02:00 AM ~ $

then,

-= rom@leviathan =- Sun May 07, 02:00 AM ~ $ sudo port uninstall apr Password: ---> Unable to uninstall apr 1.2.6_0, the following ports depend on it: ---> apr-util ---> apr-util ---> apr-util ---> subversion ---> subversion-javahlbindings Error: /opt/local/bin/port: port uninstall failed: Please uninstall the ports that depend on apr first. -= rom@leviathan =- Sun May 07, 02:16 AM ~ $

Notice that apr-util appears three times but in the former command only one apr-util package is shown to be installed (apr-util @1.2.6_0). These "residual" packages are from previous inactive versions (because of upgrades) that were manually uninstalled.