[MacRuby-devel] Embed does not seem to work anymore after upgrading from 0.5 to 0.6

I've recently upgraded from 0.5 to 0.6. When I checked if one of my apps still was okay I noticed a problem when embedding MacRuby into the application and running it on a MacRuby-less machine. The first time it's trying to require something from MacRuby (in this case Singleton and/or CGI) it throws a LoadError: *** Terminating app due to uncaught exception 'LoadError', reason: 'no such file to load -- singleton (LoadError)' The code can be found at GitHub: http://github.com/jeroenj/chill For some reason the problem does not resist with new projects. So my best guess is that there is something configured wrong in the project but I cannot seem to find out what.