[Dune] superlutest fails

[Liesel Schumacher]

Hello,
I am currently setting up a new dune project. Therefore I use the master 
branch of the core modules. When I tried to include
#include <dune/pdelab/backend/istl/seqistlsolverbackend.hh>

I got the following error:
dune-istl/dune/istl/superlu.hh:527:25: fatal error: no member named 
'expansions' in 'SuperLUStat_t'

I then checked the superlutest.cc in dune-istl/dune/istl/test and it 
fails to build with the same error.
Do you have any suggestions on how to make the superlutest work again?

Thanks,
Liesel