title: Fail to compile c++ source to swc using Alchemy on Mac OS X Lion
body: <p>When I tried to compile a [.cpp] file to [.swc] file, I got this:</p>
  
  <pre><code>dyld: Library not loaded: /usr/lib/libltdl.3.dylib
  </code></pre>
  
  <p>And I found that my libltdl is</p>
  
  <pre><code>Poechant:src poechant$ ls -l /usr/lib/libltdl.*
  lrwxr-xr-x  1 root  wheel     15 10 11 08:17 /usr/lib/libltdl.7.2.2.dylib -&gt; libltdl.7.dylib
  -rwxr-xr-x  1 root  wheel  88848 10 11 08:17 /usr/lib/libltdl.7.dylib
  lrwxr-xr-x  1 root  wheel     15 10 11 08:17 /usr/lib/libltdl.dylib -&gt; libltdl.7.dylib
  </code></pre>
  
  <p>How to solve it?</p>