how do I set macro parameter default values?

[epu]

Hey guys,

Trying to set a macro value with a parameter and give the parameter a useful default value.

So far, my parameter looks like

<macro>
	<name>LATEST_LABEL</name>
	<description>the Tools_*_LATEST label for this build</description>
	<parameters>PROJECT</parameters>
	<value>Tools_PROJECT_LATEST</value>
</macro>

and now I want parameter PROJECT to default to some useful value, like the PROJROOT macro. How can I do this?

Best regards,
-e