How to compile and install Ruby 1.9.1 on Mac OS X Leopard - wonko.comNow that Ruby 1.9.1 is out, a lot of Ruby developers are going to want to run it alongside a 1.8.x build to test their apps. Here’s how to compile and install Ruby 1.9.1 alongside an existing Ruby installation on Mac OS X Leopard without disturbing that installation or any gems. Note: You’ll need to have Xcode installed, since it provides the development tools necessary for the compilation step. I
