old_contents: from core.misc import get_scons_path, get_scons_build_dir, \
                        get_scons_configres_dir, get_scons_configres_filename
  
  from core.numpyenv import GetNumpyEnvironment
  from core.libinfo_scons import NumpyCheckLibAndHeader
  
  from checkers import CheckF77BLAS, CheckCBLAS, CheckCLAPACK, CheckF77LAPACK, CheckFFT
  from fortran_scons import CheckF77Mangling
  import tools
  
new_contents: # XXX those are needed by the scons command only...
  from core.misc import get_scons_path, get_scons_build_dir, \
                        get_scons_configres_dir, get_scons_configres_filename
  
  # XXX those should not be needed by the scons command only...
  from core.extension import get_python_inc, get_pythonlib_dir
  
  # Those functions really belong to the public API
  from core.numpyenv import GetNumpyEnvironment
  from core.libinfo_scons import NumpyCheckLibAndHeader
  
  from checkers import CheckF77BLAS, CheckCBLAS, CheckCLAPACK, CheckF77LAPACK, CheckFFT
  from fortran_scons import CheckF77Mangling
  #import tools
  
subject: Mark things to clean up later in global import