title: "error LNK1104: cannot open file" during .dll generation
body: <p>I am working on a project which uses PCL (boost is one of the programs used by PCL).
  the error I'm getting: </p>
  
  <blockquote>
    <p>error LNK1104: cannot open file
    'libboost_date_time-vc100-mt-gd-1_50.lib'</p>
  </blockquote>
  
  <p>What I am trying to do is to generate a .dll, this worked before.
  I checked the settings of the working and failing projects, and there is no difference in linking, C/C++ settings, yet somehow this one doesn't work.</p>
  
  <p>I don't know if this matters, but it does work as a static library (.lib).</p>