Greets, I have opened <https://issues.apache.org/jira/browse/LUCY-137> to track dependency licensing and document what has been done so far. By my reckoning, all issues have been addressed save those relating to Parse::RecDescent and JSON::XS, which are covered by <https://issues.apache.org/jira/browse/LEGAL-86>.
This was the last IP issue holding up 0.1.0-incubating. Unless I have forgotten or missed something, we should be in the clear. Marvin Humphrey
