Added "-O3" flag to see if it screws things up.
Added "-O3" flag to see if it screws things up.

-O3 does a lot of messing around with the code, so
it is conceivable that including it might uncover
potential problems.  It isn't now (all tests still
pass), but it might in the future.

The price paid by this is that the tests will
run slower due to the extra compilation time.

gcross/Privateer