Installing Ruby
Before you can install Cucumber, you need to install Ruby. The code in this book was tested with ruby 1.9.3-p194, and we recommend you use this version or a more recent one. Each operating system has different ways to install Ruby. This section walks you through the most common installation procedures for OS X, Linux, and Windows.
OS X and Linux
First, you are going to need a C compiler such as GCC or Clang installed to build Ruby and gems that use C extensions, including Cucumber. On OS X you will have to install Xcode. Each Mac ships with a DVD that contains Xcode, and it can also be downloaded from http://developer.apple.com/xcode/.
Some Linux distributions come with GCC and/or Clang pre-installed, but many (such as Ubuntu) ...
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