In the "Getting Started" wikidoc, Building Hive from Source still uses ant instead of mvn:
$ ant clean package
$ ant clean package -Dhadoop.version=0.23.3 -Dhadoop-0.23.version=0.23.3 -Dhadoop.mr.rev=23
$ ant clean package -Dhadoop.version=2.0.0-alpha -Dhadoop-0.23.version=2.0.0-alpha -Dhadoop.mr.rev=23
Perhaps these instructions should be retained for earlier releases, but Maven instructions need to be added for 0.13.0.