On Fri, Nov 21, 2008 at 11:46:58PM +0900, Yukihiro Matsumoto wrote:
> unicode module needs update.  In the past RSTRING_PTR() never be NULL,
> but it has been changed to save memory.

It seems like this could break a lot of extensions.  Could RSTRING_PTR
return a pointer to a string constant ""?

Paul