is there a Fortran-90 compiler port? Where to get a FOSS Fortran-90 compiler?

[Kenneth Wolcott]

Hi;

  I have lfortran and fort77 ports installed, but neither of those can
handle Fortran-90.

  I thought that having gcc installed would automatically give me a
gfortran, but apparently not.  Is this somehow available under clang?

  Is there a FOSS Fortran-90 compiler that I can install?

  The last time I tried to install gfortran directly from FSF, it
failed, I don't remember why.

  I'm looking at some Rosetta Code tasks for fun (!)
(https://rosettacode.org/wiki/Rosetta_Code)

Thanks,
Ken Wolcott