title: Add directory to classpath in Build.scala of sbt
body: <p>At the SBT prompt I am able to add a external directory (which contains linux dynamic libs) to the current compile &amp; test classpath's using the commands -</p>
  
  <pre><code>&gt; set fullClasspath in Compile += Attributed.blank(file("/inotify_deps"))
  &gt; set fullClasspath in Test += Attributed.blank(file("/inotify_deps"))
  </code></pre>
  
  <p>How can I specify this path in Build.scala itself? I tried -</p>
  
  <pre><code>unmanagedBase &lt;&lt;= baseDirectory { base =&gt; base / "/inotify_deps" },
  </code></pre>
  
  <p>But this does not do the job. How can I modify the fullClasspath variable for both Compile/Test from within Build.scala?</p>