Hi Maik, The libpython dependency pulls in a lot of packages into toolchain level. There are some recent discussions on the topic https://github.com/easybuilders/easybuild-easyconfigs/pull/5072 https://github.com/easybuilders/easybuild/wiki/Conference-call-notes-20180606 and my own meager contribution to the discussion; https://lists.ugent.be/wws/arc/easybuild/2018-06/msg00008.html (because, as far as I can see, the situation could be a lot simpler by only having a normal "Python-core" runtime dep, and not shadowing the libpython/interpreter at the toolchain level)
fosscuda exists due to the CUDA-enabled OpenMPI, which "forces" a new toolchain (duplicated builds would be less prevalent if we got a Python-core in place though) Best regards, Mikael
