diff -r 8c4a6d9b8a23 -r ec84ba68ad39 make/build.xml
--- a/make/build.xml	Thu Jul 04 17:28:04 2013 +0200
+++ b/make/build.xml	Fri Jul 05 14:38:04 2013 +0530
@@ -100,7 +100,8 @@
            target="${javac.target}"
            debug="${javac.debug}"
            encoding="${javac.encoding}"
-           includeantruntime="false">
+           includeantruntime="false" fork="true">
+      <compilerarg value="-J-Djava.ext.dirs="/>
       <compilerarg value="-Xlint:unchecked"/>
       <compilerarg value="-Xlint:deprecation"/>
       <compilerarg value="-XDignore.symbol.file"/>