title: Rails – Bundle install problems with json
body: <p>I'm running OS X Mavericks, with Rails 3.2.12. When I try to do rails new project, it gets stuck at bundle install.</p>
  
  <pre><code>Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
  
  /usr/local/rvm/rubies/ruby-1.9.3-p392/bin/ruby extconf.rb 
  creating Makefile
  
  make
  compiling generator.c
  make: gcc-4.2: No such file or directory
  make: *** [generator.o] Error 1
  
  
  Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p392/gems/json-1.8.1 for inspection.
  Results logged to /usr/local/rvm/gems/ruby-1.9.3-p392/gems/json-1.8.1/ext/json/ext/generator/gem_make.out
  An error occurred while installing json (1.8.1), and Bundler cannot continue.
  Make sure that `gem install json -v '1.8.1'` succeeds before bundling.
  </code></pre>
  
  <p>I get the same error when I do 'gem install json....' as it suggests. I've installed the latest version of Xcode, with the command line tools. When I do:</p>
  
  <pre><code>which gcc
  </code></pre>
  
  <p>I get:</p>
  
  <pre><code>/usr/bin/gcc
  </code></pre>
  
  <p>I'm new to all this stuff really, so please try to keep things simple.</p>