On Tue, 30 Mar 2021 at 16:14, Evan Cooch wrote: > Many thanks. That gave me a clue. Turns out that if I statically link > libgfortran (-static-libgfortran), findloc is found (unavoidable irony). > But, if I use a dynamic link, it is not staying with the scl env, and is > using the libgfortran that CentOS 7 (and RHEL 7) defaults to, which is > << gcc 9. Which, if I'd stoped to think about it, sort of makes sense. If you're using gfortran from devtoolset then linking to the libgfortran.so from the base OS is the whole point of devtoolset. New symbols that aren't in the base libgfortran.so are supposed to be statically linked into the executable. Please open a bug at bugzilla.redhat.com about this.