Catalina and gfortran
There is a package providing gfortran 6.1 on the page at https://cran.r-project.org/bin/macosx/tools/, and that should be used now with the El Capitan builds of R. FWIW, I've had success using gfortran from Homebrew gcc; you just need to ensure that the correct Fortran libraries are passed along during compilation. E.g. I have: FLIBS = -L`gfortran -print-file-name=libgfortran.dylib | xargs dirname` in my `~/.R/Makevars`. Best, Kevin On Thu, Oct 10, 2019 at 8:28 AM Erich Subscriptions
<erich.subs at neuwirth.priv.at> wrote:
I am trying to produce a n R environment on clean new Catalina installation (in a VM). The R binary installer and RStudio work. Then, I installed clang7, and that seems to work also. gfortran, however, is a problem. The 4.2.3 version (still in the tools folder on CRAN) is 32bit only, so it does not work on Catalina. 6.1 from https://github.com/fxcoudert/gfortran-for-macOS/ cannot be installed, the installer tells that it is incompatible with this version of macOS. Is there a workaround? Can I find a version of gfortran which will compile packages containing Fortran code? (I stumbled on classInt). I also tried gcc at 7 from homebrew, but could not get it to run either.
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