Hi, I have worked out a rough draft for the use of environment-modules instead of alternatives. Feel free to comment or modify it. I'd also like to suggest a feature that all MPI compilers/libraries use solely environment-modules (no alternatives support). Currently, the only MPI compiler in Fedora that still uses alternatives is mpich2. https://fedoraproject.org/wiki/PackagingDrafts/EnvironmentModules -- Jussi Lehtola Fedora Project Contributor jussilehtola@xxxxxxxxxxxxxxxxx -- Fedora-packaging mailing list Fedora-packaging@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-packaging