modperl_perl_global_avcv_tie(aTHX_ avcv->key, avcv->av);
if (!*avcv->av) { *avcv->av = newAV(); }  modperl_perl_global_avcv_tie(aTHX_ avcv->key, *avcv->av);
modperl_perl_global_avcv_save(pTHX_ modperl_perl_global_avcv_t *avcv){    modperl_perl_global_avcv_tie(aTHX_ avcv->key, avcv->av);}