g_OID_prefix_equal
if (g_OID_prefix_equal(desired_object, &krb5_gss_inquire_sec_context_by_oid_ops[i].oid)) {
if (g_OID_prefix_equal(desired_object, &krb5_gss_inquire_cred_by_oid_ops[i].oid)) {
if (g_OID_prefix_equal(desired_object, &krb5_gssspi_set_cred_option_ops[i].oid)) {
if (g_OID_prefix_equal(desired_object, &krb5_gssspi_mech_invoke_ops[i].oid)) {
!g_OID_prefix_equal(actual_mech, public_mech)) {