Fortran recipe

[Michael Wimmer]

Thank you very much for this recipe!

There is one thing though that is not clear to me:

When linking gfortran compiled code with clang, I need to link against
libgfortran (and possible others like libquadmath). But I then also need to
specify the location of libgfortran to clang with -L ... (I didn't need to
do this with gcc, as gcc knows the path)

So my question is:

- is the path to libgfortran fixed?
- should that be included in the Fotran recipe?

All the best,

Michael