OpenSSL::X509::ExtensionFactory#crl=

static VALUE
ossl_x509extfactory_set_crl(VALUE self, VALUE crl)
{
    X509V3_CTX *ctx;

    GetX509ExtFactory(self, ctx);
    rb_iv_set(self, "@crl", crl);
    ctx->crl = GetX509CRLPtr(crl); /* NO DUP NEEDED */

    return crl;
}