title: Phusion Passenger Doesn't compile in Mountain Lion
body: <p>I am having trouble compiling Phusion Passenger with my new OSX Mountain Lion Install. Do you have any advice?</p>
  
  <pre><code>Installing Phusion Passenger Standalone...
  [*******************************              ] Compiling Phusion Passenger... 
  *** ERROR: the following command failed:
  mkdir -p 'ext/ruby/ruby-1.9.3-x86_64-macosx/'
  cd 'ext/ruby/ruby-1.9.3-x86_64-macosx/' &amp;&amp; /Users/boris/.rvm/wrappers/ruby-1.9.3-p194@apps2/ruby '/Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby/extconf.rb'
  checking for alloca.h... *** /Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby/extconf.rb failed ***
  Could not create Makefile due to some reason, probably lack of
  necessary libraries and/or headers.  Check the mkmf.log file for more
  details.  You may need configuration options.
  
  Provided configuration options:
      --with-opt-dir
      --with-opt-include
      --without-opt-include=${opt-dir}/include
      --with-opt-lib
      --without-opt-lib=${opt-dir}/lib
      --with-make-prog
      --without-make-prog
      --srcdir=/Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby
      --curdir
      --ruby=/Users/boris/.rvm/rubies/ruby-1.9.3-p194/bin/ruby
  /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
  You have to install development tools first.
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:254:in `open'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:254:in `open'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
      from /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:930:in `have_header'
      from /Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby/extconf.rb:36:in `&lt;main&gt;'
  rake aborted!
  Command failed with status (1): [cd 'ext/ruby/ruby-1.9.3-x86_64-macosx/' &amp;&amp;...]
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/file_utils.rb:53:in `block in create_shell_runner'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/file_utils.rb:45:in `call'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/file_utils.rb:45:in `sh'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/file_utils_ext.rb:39:in `sh'
  /Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/build/ruby_extension.rb:43:in `block in &lt;top (required)&gt;'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `block in execute'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `block in invoke_with_call_chain'
  /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:176:in `block in invoke_prerequisites'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `each'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `invoke_prerequisites'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:157:in `block in invoke_with_call_chain'
  /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:176:in `block in invoke_prerequisites'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `each'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `invoke_prerequisites'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:157:in `block in invoke_with_call_chain'
  /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:176:in `block in invoke_prerequisites'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `each'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `invoke_prerequisites'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:157:in `block in invoke_with_call_chain'
  /Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block (2 levels) in top_level'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block in top_level'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `block in run'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@global/gems/rake-0.9.2.2/bin/rake:33:in `&lt;top (required)&gt;'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@apps2/bin/rake:23:in `load'
  /Users/boris/.rvm/gems/ruby-1.9.3-p194@apps2/bin/rake:23:in `&lt;main&gt;'
  Tasks: TOP =&gt; nginx =&gt; native_support =&gt; ext/ruby/ruby-1.9.3-x86_64-macosx//passenger_native_support.bundle =&gt; ext/ruby/ruby-1.9.3-x86_64-macosx//Makefile
  </code></pre>