title: Can I make the Ant copy task OS-specific?
body: <p>I have an Ant script that performs a copy operation using the <a href="http://ant.apache.org/manual/Tasks/copy.html" rel="noreferrer">'copy' task</a>. It was written for Windows, and has a hardcoded C:\ path as the 'todir' argument. I see the 'exec' task has an OS argument, is there a similar way to branch a copy based on OS?</p>