CMake packaging: Fortran modules should not be installed to `CMAKE_INSTALL_INCLUDEDIR`
See https://github.com/fortran-lang/stdlib/blob/7ff67627810a371cb81cb55aeb4aa42ce3708d3c/config/CMakeLists.txt#L3C1-L11 for a better approach.
Basically the modules have to a compiler dependent folder to allow installing multiple toolchains. The packaging on Fedora is currently broken due to an incompatible workaround.