--- ant/Slice2JavaTask.java.orig	2008-05-07 11:03:44.000000000 +0100
+++ ant/Slice2JavaTask.java	2008-05-07 11:03:46.000000000 +0100
@@ -339,6 +339,7 @@
             // unique property name here. Perhaps we should output the dependencies to a file instead.
             //
             final String outputProperty = "slice2java.depend." + System.currentTimeMillis();
+            final String errorProperty = "slice2java.error." + System.currentTimeMillis();
 
             task = (ExecTask)getProject().createTask("exec");
             addLdLibraryPath(task);
@@ -347,6 +348,7 @@
             arg.setLine(cmd.toString());
             task.setExecutable(translator);
             task.setOutputproperty(outputProperty);
+            task.setErrorProperty(errorProperty);
             task.execute();
 
             //