Hi, A new GiNaC release is out and available. These are the changes: * Fix memory leak in operators returning relationals, introduced in 1.7.0. * Make macro GINAC_DECLARE_REGISTERED_CLASS() work outside namespace GiNaC. * Fix some build issues. Happy hacking -richy. -- Richard B. Kreckel <http://in.terlu.de/~kreckel/>