Intel E5520 chip / regtests

[flo]

Hi Joerg,

I checked with version 10.0.025 and had a similar error.
The problem is the loop vectorization of intel. It looks like the way
the loops are built causes problems when O2 is active.
In my case the problem disappears when using FCFLAGS2 for the
rt_propagation_utils file as well. Just add

rt_propagation_utils.o: rt_propagation_utils.F
        $(FC) -c $(FCFLAGS2) $<

to your arch file, and it should work.

At a given point I have to optimize this routine anyway, since it gets
very expensive for large molecules. For the time being this should
work.

Flo