title: How to build clang/examples/PrintFunctionNames?
body: <p>I need some simple example to start using clang.
  I downloaded llvm and clang and built:</p>
  
  <pre><code>mkdir llvm-build
  cd llvm-build
  ../llvm/configure
  make
  </code></pre>
  
  <p>I tried to build PrintFunctionNames from clang examples but got an error message:</p>
  
  <p>../../../../Makefile.common:61: ../../../../Makefile.config: No such file or directory
  ../../../../Makefile.common:69: /Makefile.rules: No such file or directory
  make: <em>*</em> No rule to make target `/Makefile.rules'.  Stop.</p>
  
  <p>Readme file says that only make is needed.
  So how to build this plugin?</p>