Command:
$ brew install gfortran
Result:
Error: No available formula with the name "gfortran"
GNU Fortran is now provided as part of GCC, and can be installed with:
brew install gcc
Command:
$ gfortran --version
Result:
GNU Fortran (Homebrew gcc 5.3.0) 5.3.0
Copyright (C) 2015 Free Software Foundation, Inc.
GNU Fortran comes with NO WARRANTY, to the extent permitted by law.
You may redistribute copies of GNU Fortran
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING