optimised make breaks

Created by: subhacom

The optimised option in the makefiles breaks at the linking stage.

Many of following error message prop up during the linking stage

connections/connections.o: In function Many2ManyConnTainer::Many2ManyConnTainer(Eref, Eref, int, int, unsigned int, unsigned int)': (.text+0x1987): undefined reference to SM_MAX_ROWS'

The problem is the all the code in SparseMatrix.cpp is within #ifdef DO_UNIT_TESTS.

Reported by: raameshd