title: How to find all sub-directories named include in cmake
body: <p>How do I find all directories named include in cmake? For instance, if the directory structure is like that:</p>
  
  <pre><code>root
  include/
  a/
    include/
  b/
    c/
       d/
          include/
  </code></pre>
  
  <p>I'd like to assign to a variable all found paths:</p>
  
  <pre><code>root/include
  root/a/include
  root/b/c/d/include
  </code></pre>
  
  <p>I tried to use GLOBE_RECURSE, but with no success.</p>