title: how to add variable into the run configuration Eclipse
body: <p>I'm using Eclipse Keplero in C++. I've a project that depends on other shared libraries. </p>
  
  <p>To debug the application I've to add manully all dependency libraries, but this is very boring. So I thought that I can update PATH enviorment variable from "Enviorment" in "Run Configuration". I added the followin variable:
  <code>PATH:${PATH};${workspace_loc}\library\lib\x64;${BOOST_X64_NATIVE}</code></p>
  
  <p><code>BOOST_X64_NATIVE</code> is an os enviorment variable (windows 7). But I've the following message: <code>Reference to undefined variable PATH</code>.</p>
  
  <p>Well how can I set correctly enviorment variables on eclipse in a way I haven't to copy every time all dependencies.</p>