Print parsed compiler flags, some cosmetic changes for added consistency

def get_lammps_machine_flags(machine):

  """Parse Makefile.machine from LAMMPS, return dictionary of compiler flags"""

  if not os.path.exists("../../src/MAKE/MACHINES/Makefile.%s" % machine):

    sys.exit("Cannot locate src/MAKE/MACHINES/Makefile.%s" % machine)

    sys.exit("ERROR: Cannot locate src/MAKE/MACHINES/Makefile.%s" % machine)

  lines = open("../../src/MAKE/MACHINES/Makefile.%s" % machine,

               'r').readlines()

  machine_flags = {}

          (words[0] == 'SHFLAGS') or (words[0] == 'ARCHIVE') or

          (words[0] == 'ARFLAGS') or (words[0] == 'SHELL')):

        machine_flags[words[0]] = ' '.join(words[2:])

  if machine_flags:

    print("Detected the following flags: ", machine_flags)

  return machine_flags

def gen_colvars_makefile_machine(machine, machine_flags):

  machine_flags = get_lammps_machine_flags(machine)

  gen_colvars_makefile_machine(machine, machine_flags)

if not os.path.exists("Makefile.%s" % machine):

  sys.exit("lib/%s/Makefile.%s does not exist" % (lib,machine))

  sys.exit("ERROR: lib/%s/Makefile.%s does not exist" % (lib,machine))

# create Makefile.auto as copy of Makefile.machine

# reset EXTRAMAKE if requested

n_cpus = get_cpus()

print("Building lib%s.a ..." % lib)

cmd = ["make -f Makefile.auto clean; make -f Makefile.auto -j%d" % n_cpus]

cmd = "make -f Makefile.auto clean; make -f Makefile.auto -j%d" % n_cpus

try:

  txt = subprocess.check_output(cmd, stderr=subprocess.STDOUT, shell=True);

  txt = subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT);

  print(txt.decode('UTF-8'))

except subprocess.CalledProcessError as e:

  print("Make failed with:\n %s" % e.output.decode('UTF-8'))

  sys.exit(1)

  sys.exit("Make failed with:\n %s" % e.output.decode('UTF-8'))

if os.path.exists("lib%s.a" % lib):

  print("Build was successful")

else:

  sys.exit("Build of lib/%s/lib%s.a was NOT successful" % (lib, lib))

if os.path.exists("lib%s.a" % lib): print("Build was successful")

else: sys.exit("Build of lib/%s/lib%s.a was NOT successful" % (lib,lib))

if not os.path.exists("Makefile.lammps"):

  print("lib/%s/Makefile.lammps was NOT created" % lib)

  print("WARNING: lib/%s/Makefile.lammps was NOT created" % lib)