Passing extra compiler options to ANT task?

Hi,

Is there a way to send any extra compiler options to the <flexunit> ANT task?

I'm using conditional compilation and compilation (mxmlc) is failing from the <flexunit> task:

"Error: Access of undefined property DEBUG.

CONFIG::DEBUG {"

I tried sneaking "-define+=CONFIG::DEBUG,false" in with one of the other compiler options you can set on the <flexunit> task, but that just doesn't work or results in a validation error like this:

"One of the directories specified as a 'testSource' element does not exist."

Let me know if this is possible at all.

Thanks,

Wijnand