SPRNG v1.0

  1.  Edit make.CHOICES to select platform e.g. LINUX
  2. Edit SRC/make.LINUX to select compilers and options
    F77 = gfortran
    FFXN = -DAdd_
  3. 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.