RCR 98: ruby_run() calls exit?

I'm working on embedding ruby in c and I discovered that the ruby_run command calls exit once it's done. Now when using ruby as a pure interpreter, that's fine. But when I need to continue to run a program once ruby is done executing, I can't have it call exit. Is there a way around ruby calling exit? Or can it be removed? This issue also exists there's an exception thrown by ruby. can we have ruby_run return an error code so that it's more easily embeddable?