title: nmake.exe keeps complaining about flags I'm not giving it. (U1065)
body: <p>When I run <code>nmake.exe</code> from <code>make</code> I get this error:</p>
  
  <pre><code>Microsoft (R) Program Maintenance Utility Version 8.00.50727.42
  Copyright (C) Microsoft Corporation.  All rights reserved.
  
  NMAKE : fatal error U1065: invalid option '-'
  </code></pre>
  
  <p>But I'm not passing in '-' as an option anyplace.</p>
  
  <p>If I run the same command from outside of make it works correctly.</p>