title: Linker error building project with Facebook SDK
body: <p>I just added the latest Facebook SDK code from Github to my project. Because I'm using ARC, I used their supplied shell script to build the static library. I added it to my project and made sure the static library is being linked, but I'm receiving this linker error:</p>
  
  <pre><code>Undefined symbols for architecture i386:
    "_OBJC_CLASS_$_FBFrictionlessRequestSettings", referenced from:
        objc-class-ref in libfacebook_ios_sdk.a(Facebook.o)
  ld: symbol(s) not found for architecture i386
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>Here are the linker settings:</p>
  
  <p><img src="https://i.stack.imgur.com/SNnpS.png" alt="App linker settings"></p>
  
  <p>Any ideas?</p>