title: Error while building native extensions for capybara-webkit
body: <p>I'm trying to install the webkit driver for capybara on Windows, and I'm getting the following error:</p>
  
  <pre><code>$ gem install capybara-webkit-0.12.1.gem
  Temporarily enhancing PATH to include DevKit...
  Building native extensions.  This could take a while...
  ERROR:  Error installing capybara-webkit-0.12.1.gem:
          ERROR: Failed to build gem native extension.
  
          c:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb
  
  
  Gem files will remain installed in c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.12.1 for inspection.
  Results logged to c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.12.1/./gem_make.out
  </code></pre>
  
  <p>And here's what's in the log file:</p>
  
  <pre><code>C:\&gt;cat c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.12.1/./gem_make.out
  c:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb
  </code></pre>
  
  <p>I've been trying for some time now to figure out what the problem is. The log file isn't very helpful, and the solutions to similar problems that I found were either specific to Unix or and didn't work for me. I'd appreciate any help you can give me.</p>
  
  <p><em>Note: This question has been cross-posted to the <a href="https://groups.google.com/forum/?fromgroups=#!topic/capybara-webkit/3oj8RDGjvTk" rel="nofollow">capybara-webkit Google group.</a></em></p>
  
  <hr>
  
  <p><strong>Update:</strong> I tried building the gem manually on the recommendation of Joe Ferris on <a href="https://groups.google.com/forum/#!msg/capybara-webkit/3oj8RDGjvTk/4LxHaIRN4IAJ" rel="nofollow">the capybara-webkit Google Group</a>, and managed to get some more detailed information on what's causing the build to fail. Here's the message I get while executing <code>bundle exec rake build</code> in capybara-webkit's directory:</p>
  
  <pre><code>cd src/ &amp;&amp; c:/Qt/4.8.3/bin/qmake.exe "c:/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src/webkit_server.pro" -spec c:/Qt/4.8.3/mkspecs/win32-g++ -o Makefile.webkit_server
  '.' is not recognized as an internal or external command,
  operable program or batch file.
  '.' is not recognized as an internal or external command,
  operable program or batch file.
  capybara-webkit 0.12.0 built to pkg/capybara-webkit-0.12.0.gem
  cd src/ &amp;&amp; make -f Makefile.webkit_server 
  make[1]: Entering directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src'
  make -f Makefile.webkit_server.Release
  make[2]: Entering directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src'
  bin/rcc.exe -name webkit_server webkit_server.qrc -o release/qrc_webkit_server.cpp
  make[2]: bin/rcc.exe: Command not found
  make[2]: *** [release/qrc_webkit_server.cpp] Error 127
  make[2]: Leaving directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src'
  make[1]: *** [release] Error 2
  make[1]: Leaving directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src'
  make: *** [sub-src-webkit_server-pro-make_default-ordered] Error 2
  Command 'make' failed
  </code></pre>
  
  <p>Other potentially relevant information: </p>
  
  <pre><code>C:\&gt;which make --all
  C:\RailsInstaller\DevKit\bin\make.EXE
  C:\Qt\4.8.3\bin\make.BAT
  C:\Program Files\Gow\bin\make.EXE
  C:\&gt;which rcc
  C:\Qt\4.8.3\bin\rcc.EXE
  C:\&gt;which g++
  C:\RailsInstaller\DevKit\mingw\bin\g++.EXE
  </code></pre>
  
  <p>And my PATH:</p>
  
  <pre><code>C:\PROGRA~1\Serena\vm\win32\bin;
  C:\PROGRA~1\Serena\vm\common\bin\win32;
  C:\WINDOWS\system32;
  C:\WINDOWS;
  C:\WINDOWS\System32\Wbem;
  C:\Program Files\ATI Technologies\ATI.ACE\;
  C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;
  C:\WINDOWS\system32\WindowsPowerShell\v1.0;
  C:\Program Files\TortoiseSVN\bin;
  C:\RailsInstaller\Ruby1.9.3\bin;
  C:\RailsInstaller\Ruby1.9.3\lib\ruby\gems\1.9.1\bin;
  C:\RailsInstaller\DevKit\bin;
  C:\RailsInstaller\Git\cmd;
  C:\Program Files\ansi153\x86;
  C:\bin;
  C:\RailsInstaller\DevKit\mingw\bin;
  C:\Qt\4.8.3\bin;
  C:\Program Files\Nodejs;
  C:\Documents and Settings\user\Desktop\emacs-23.4\bin;
  C:\Python27;
  C:\Python27\Scripts;
  C:\Program Files\GnuWin32\bin;
  C:\Program Files\Gow\bin;
  C:\Program Files\Notepad++;
  C:\Documents and Settings\user\Application Data\npm\ 
  </code></pre>