www-apps/redmine failed to `emerge redmine --config` with activerecord-2.3.8. its activerecord-2.3.8 issue. the patch was released by upstream. could you backport it? https://rails.lighthouseapp.com/projects/8994/tickets/4891-rails-238-dbmigrate-gives-undefined-method-length-for-any_indexsymbol
Thanks for reporting and finding a patch for the problem. Fixed in activerecord-2.3.8-r1.