title: How can I enable Xcode refactor options for an external build project?
body: <p>I want to use XCode as an IDE for developing some AVR code. I did the following</p>
  
  <p>1) create new project</p>
  
  <p>2) select external build system</p>
  
  <p>3) indicated i want it to be make, and told it NOT to "Pass build settings in environment"</p>
  
  <p>4) copied my <em>.c/</em>.h/Makefile into the same directory i created the project in</p>
  
  <p>5) added the <em>.c/</em>.h files to the project/target</p>
  
  <p>6) verified that i can build (make) from both command line and Xcode</p>
  
  <p>But I cannot use any of the refactor menu options, or jump to/reveal options. There appears to be no symbol information. Is there no way to use Xcode as more than just a simple C editor that uses an external build system????</p>
  
  <p>If not, it's a bust for embedded development. Please tell me I'm wrong :(</p>