ruby_targets_ruby27?
      ( dev-ruby/curses[ruby_targets_ruby27
            (-)
      ] )

ruby_targets_ruby30?
      ( dev-ruby/curses[ruby_targets_ruby30
            (-)
      ] )

ruby_targets_ruby31?
      ( dev-ruby/curses[ruby_targets_ruby31
            (-)
      ] )

ruby_targets_ruby27?
      ( dev-lang/ruby:2.7 )

ruby_targets_ruby30?
      ( dev-lang/ruby:3.0 )

ruby_targets_ruby31?
      ( dev-lang/ruby:3.1 )