title: How do I pass a parameter to an <ant ../> call?
body: <p>I have a master build file which is calling other build.xml files of different projects.</p>
  
  <p>One of my build file needs a command line argument for the  execution  </p>
  
  <pre><code>ant -Denv=81 -buildfile build_war.xml
  </code></pre>
  
  <p>I wrote one task in master build.xml to call build_war.xml </p>
  
  <pre><code>&lt;target name="buildDataExtractor"&gt;
    &lt;ant antfile="..\SEFTooling\build_war.xml" inheritall="false" /&gt; 
  &lt;/target&gt;
  </code></pre>
  
  <p>How do I pass the "-Denv=81" parameter so that build_war.xml will be executed correctly.</p>