Z:gnu-www-ja-license-list--e97b0d-This license is the disjunctio/en

This license is the disjunction of the Artistic License 1.0 and the GNU GPL&mdash;in other words, you can choose either of those two licenses. It qualifies as a free software license, but it may not be a real copyleft. It is compatible with the GNU GPL because the GNU GPL is one of the alternatives.