I don\'t have ANT_HOME set, so i want to find where the home directory of ant is. I\'m using the version of ant that was installed by default on my OSX install.
If you run ant -diagnostics, it should tell you where the ant.home is
$ant -diagnostics
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ANT PROPERTIES
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ant.version: Apache Ant(TM) version 1.9.2 compiled on July 8 2013
ant.java.version: 1.6
ant.core.lib: /opt/local/share/java/apache-ant/lib/ant.jar
ant.home: /opt/local/share/java/apache-ant