To install spam package in MacOSX

 To install spam package in MacOSX, I have been forced to do:

sudo ln -s /usr/local/opt/gcc/lib/gcc/current /usr/local/gfortran/lib 

to prevent an error:

ld: warning: directory not found for option '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin18/8.2.0'

ld: warning: directory not found for option '-L/usr/local/gfortran/lib'

ld: warning: directory not found for option '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin18/8.2.0'

ld: warning: directory not found for option '-L/usr/local/gfortran/lib'

ld: library not found for -lgfortran

clang: error: linker command failed with exit code 1 (use -v to see invocation)


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