eval_pv(
        "use DynaLoader;" \
        "use XML::LibXML;" \
        "my $pnts_symref = DynaLoader::dl_find_symbol_anywhere('PmmNodeToSv');" \
        "my $coderef = DynaLoader::dl_install_xsub('kousei::PmmNodeToSv', $pnts_symref);"
        TRUE
    );