user_options
user_options = [ ('fcompiler=', None, 'specify Fortran compiler type'), ('f77exec=', None, 'specify F77 compiler command'), ('f90exec=', None, 'specify F90 compiler command'), ('f77flags=', None, 'specify F77 compiler flags'), ('f90flags=', None, 'specify F90 compiler flags'), ('opt=', None, 'specify optimization flags'), ('arch=', None, 'specify architecture specific optimization flags'), ('debug', 'g', 'compile with debugging information'), ('noopt', None, 'compile without optimization'), ('noarch', None, 'compile without arch-dependent optimization'), ('help-fcompiler', None, 'list available Fortran compilers') ]