code: def _create_mo_file_builder(env, **kw):
    
    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)
docs: Create builder object for `MOFiles` builder