  If an M2-brane intersects an M5-brane the canonical Wess-Zumino action is
plagued by a Dirac-anomaly, i.e. a non-integer change of the action under a
change of Dirac-brane. We show that this anomaly can be eliminated at the
expense of a gravitational anomaly supported on the intersection manifold.
Eventually we check that the last one is cancelled by the anomaly produced by
the fermions present. This provides a quantum consistency check of these
intersecting configurations.
