http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-ruby/coffee-rails/coffee-rails-3.2.2.ebuild?revision=1.1&view=markup&pathrev=HEAD ruby_add_rdepend ">=dev-ruby/coffee-script-2.2.0 dev-ruby/railties:3.2" http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/dev-ruby/railties/?pathrev=HEAD ^^ All available versions are only SLOT=3.1 or SLOT=3.0
Oops, that shouldn't have been committed yet, since Rails 3.2 is still work in progress... I've masked it until Rails 3.2 is ready.