Bug#976499: dune-pdelab: FTBFS on arm64,ppc64el: segfaults during tests

[Andreas Beckmann]

Followup-For: Bug #976499
Control: retitle -1 dune-pdelab: FTBFS: segfaults during tests

I also observed a segfault trying to build the package on amd64:

The following tests FAILED:
         39 - testpk (SEGFAULT)


Andreas