Hi,

At Thu, 29 Jan 2009 14:18:05 +0900,
Yukihiro Matsumoto wrote in [ruby-core:21655]:
> |How about warning for circular require?
> 
> If some one write a patch, I am pleased to merge it.

Currentry, it will cause a fatal error.  By checking before
actually requiring, it might be possible to emit a warning, or
to just return false.

-- 
Nobu Nakada