sk_X509_CRL_push
if (!sk_X509_CRL_push(*pcrls, xi->crl))
sk_X509_CRL_push(crl_stack, crl);
if (!sk_X509_CRL_push(crls, rch->d.crl)) {
if (!sk_X509_CRL_push(*sk, crl)) {
if (!sk_X509_CRL_push(sk, x))