./ehrhart simplify fileNamerequires MAPLE for simplifications of expressions. It should be sufficient to have a copy of MAPLE installed on your machine, without any additional special configuration required. LattE will still run even if MAPLE is not installed, but this simplification feature to ``ehrhart'' will not be available.
We have tested this connection with Maple 5.1 and 8.0 and experienced no problem. Please let us know about any problem you experience with our connection to Maple.