Intel build fails

[Christoph Junghans]

from https://github.com/votca/votca/runs/6629953387?check_suite_focus=true

In file included from /usr/include/c++/12/random(49),
                 from /usr/include/eigen3/unsupported/Eigen/CXX11/Tensor(41),
                 from /__w/votca/votca/tools/include/votca/tools/eigen.h(52),
                 from /__w/votca/votca/tools/include/votca/tools/property.h(36),
                 from /__w/votca/votca/tools/include/votca/tools/calculator.h(25),
                 from /__w/votca/votca/tools/src/libtools/calculator.cc(19):
/usr/include/c++/12/bits/random.h(104): error: expected a declaration
        { __extension__ using type = unsigned __int128; };
                        ^

[Christoph Junghans]

This is with icpc not icpx, so it might be time to drop icpc as it is legacy.

[Bjoern Baumeier]

So this is an incompatibility between icpc and gcc 12?

[Christoph Junghans]

Good point maybe we should downgrade fedora to 35 (gcc-11)?