[MacRuby-devel] Building Mail.app plugin with MacRuby

Sirs, I'm playing around Mail.app plugin bundles, and I'd like to use MacRuby for building a plugin. However, I can't run it with Mail.app. As soon as I'm placing a call to macruby_main(..), I'm getting: The client that links against MacRuby was not built for GC. I think Mail.app is not GC-enabled application. Are there any workarounds or all these efforts are pretty much doomed? Thanks. --Alexander Prohorenko.