Gentoo's Bugzilla –
Attachment 440062 Details for
Bug 588328dev-db/couchdb-1.6.1-r2 : checking Erlang version compatibility... detected Erlang version: 8.0.0...configure: error: The installed Erlang version must be >= R14B (erts-5.8.1) and =< 18 (erts-7.0) major_version does not match