Build with gcc@8

[ctribes]

Build with gcc@8 is not working with OpenMP enabled. See image.

With version gcc@11 and above build is working. Versions 9 and 10 still need to be tested.

To disable OpenMP with gcc@8 (or above) you can configure Nomad build:
cmake -S. -B build/release -DTEST_OPENMP=false