def METHOD_NAME(env, **kw):
  """ Create builder object for `MOFiles` builder """
  import SCons.Action
  # FIXME: What factory use for source? Ours or their?
  kw['action'] = SCons.Action.Action('$MSGFMTCOM','$MSGFMTCOMSTR')
  kw['suffix'] = '$MOSUFFIX'
  kw['src_suffix'] = '$POSUFFIX'
  kw['src_builder'] = '_POUpdateBuilder'
  kw['single_source'] = True
  return _MOFileBuilder(**kw)