Liquibase & changing CSV file location/name

Hi all,
I need to run liquibase on different boxes/environments, using different front-ends, so I'm using logicalFilePath and relativeToChangelogFile quite a lot to compensate for the flux in current working directory and filesystem locations.

But I cannot get CSV files to be resolved relative to the changelog file (not without ugly hacks).
Can it be done in a clean way? Any ideas?

Ideally, it should be as nice as the relativeToChangelogFile in <include> (but for <loadData>)...

Cheers,
Greg