Compilation fails with missing UMFPack

Compilation of test_shallowwater_dambreak fails with missing UMFPack in preocnditioners.hh at line 94

Using

#if HAVE_UMFPACK
    using UMFPackSolverForA = Dune::UMFPack<A>;
#endif

did work for me.

Edited Apr 08, 2020 by Leopold Stadler