On Jun 20, 2008, at 07:09 AM, Guillermo.Acilu / koiaka.com wrote:
> I am working with the standard Ruby delivered within Mac OS X  
> Leopard. It
> is the version 1.8.6 patch level 111. Is it possible to apply  
> patches? or
> do they come with Mac OS X updates? If I should apply them manually  
> up to
> which patch level I should go without braking the Ruby environment?  
> Can I
> go to 1.9.0?

I would just grab the tarball for 1.9 and run ./configure --program- 
suffix=19.  You already have all the pieces you need.