Hi,

At Wed, 1 Oct 2008 04:30:42 +0900,
Berger, Daniel wrote in [ruby-core:19056]:
> It's a problem with plain C, too, e.g. "OpenFile".

It hasn't been used, and the only reason why it is still in
rubyio.h is for extensions which might use it.  So unless you
include the header explicitly, it will no longer bother you.

-- 
Nobu Nakada