I am embarrassed to admit that I really did have a problem with compiling a simple Fortran program – because of the upgrade to Catalina! When I would try to compile w/ gfortran, I would get errors such as “cannot find -System”. I finally found this website which provided a solution (although I edited my .bash_profile to make the changes permanent): https://stackoverflow.com/questions/58278260/cant-compile-a-c-program-on-a-mac-after-upgrading-to-catalina-10-15
This allowed gfortran to compile (and run) and then I was able to configure openmpi (4.1.0). I am still trying to configure openmpi with gcc and g++ (as opposed to using clang and c++). Thanks to all Tony Rollett > On Mar 7, 2021, at 8:00 PM, Gilles Gouaillardet via users > <users@lists.open-mpi.org> wrote: > > Anthony, > > Did you make sure you can compile a simple fortran program with > gfortran? and gcc? > > Please compress and attach both openmpi-config.out and config.log, so > we can diagnose the issue. > > Cheers, > > Gilles > > On Mon, Mar 8, 2021 at 6:48 AM Anthony Rollett via users > <users@lists.open-mpi.org> wrote: >> >> I am trying to configure v 4.1 with the following, which fails as noted in >> the Subject line. >> >> ./configure --prefix=/Users/Shared/openmpi410 \ >> FC=gfortran CC=clang CXX=c++ --disable-static \ >> 2>&1 | tee openmpi-config.out >> >> On a 2019 MacbookPro with 10.15 (but I had the same problem with 10.14). >> Gfortran (and gcc) is from High Performance Computing for OSX >> >> Any clues will be gratefully received! And I apologize if this is a solved >> problem ... >> Many thanks, Tony Rollett >> PS. If I try “CC=gcc CXX=g++” then it fails at the C compilation stage.
