Comment (by Roland Haas):

gcc 4.8.5 (even if old) seems to support C++11 (https://gcc.gnu.org/gcc-4.8/cxx0x_status.html) so I will try and see if I can automate setting HAVE_CCTK_F_TYPE_STAR to 0 in the master branch (though it is unlikely to be ported back to the release branch, since testing on released versions takes too long).

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2455/cannot-build-et-assumed-rank-argument