- Edit make.CHOICES to select platform e.g. LINUX
- Edit SRC/make.LINUX to select compilers and options
F77 = gfortran
FFXN = -DAdd_ - cd SRC; make -j 8; make
My gfortran (Red Hat 6.3.1-1) expect ONE underscore appended to library functions. Not sure which compilers expected two, but the default FFXN = -DAdd__ did not work for me.