Ekopath 4.x may be Open Source, but 5.x does not seem to be. I fail to find its source code and IRC channel #pathscale at Freenode has "EKOPath 5 official release is out (not open source) [..]" as the topic as of today. I would therefore propose to change the license entry of ekopath to LICENSE="all-rights-reserved" so that users who try to keep non-free software off their system (say ACCEPT_LICENSE="-* @FREE" do not install it by accident, like I did. Thanks!
This would also imply RESTRICT="mirror bindist".
5.0.5* had LICENSE=all-rights-reserved and RESTRICT=mirror already. I've added RESTRICT=bindist in 6*. This leaves us 5.0.1* to treeclean, but I'd like to hear from the original maintainers first.
Old versions treecleaned long ago.