switch (PQresultStatus(obj->intern->res)) {
case PGRES_TUPLES_OK:
-#if HAVE_PGRES_SINGLE_TUPLE
+#ifdef HAVE_PGRES_SINGLE_TUPLE
case PGRES_SINGLE_TUPLE:
#endif
if (PQntuples(obj->intern->res) <= iter->index) {
#ifdef HAVE_PGRES_COPY_BOTH
zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("COPY_BOTH"), PGRES_COPY_BOTH TSRMLS_CC);
#endif
-#if HAVE_PGRES_SINGLE_TUPLE
+#ifdef HAVE_PGRES_SINGLE_TUPLE
zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("SINGLE_TUPLE"), PGRES_SINGLE_TUPLE TSRMLS_CC);
#endif