diff --git a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc
index 837457a023f81fe359c5115b9cee7ffe08c94515..ccdc9f1b9d3adf8da42e9b0d09e7573530ccd3ad 100644
--- a/storage/innobase/handler/ha_innodb.cc
+++ b/storage/innobase/handler/ha_innodb.cc
@@ -7284,6 +7284,8 @@ build_template_field(
 
 	templ = prebuilt->mysql_template + prebuilt->n_template++;
 	MEM_UNDEFINED(templ, sizeof *templ);
+	templ->rec_field_is_prefix = FALSE;
+	templ->rec_prefix_field_no = ULINT_UNDEFINED;
 	templ->is_virtual = !field->stored_in_db();
 
 	if (!templ->is_virtual) {
@@ -7345,8 +7347,6 @@ build_template_field(
 				<< " query "
 				<< innobase_get_stmt_unsafe(current_thd, &size);
 		}
-		templ->rec_field_is_prefix = FALSE;
-		templ->rec_prefix_field_no = ULINT_UNDEFINED;
 
 		if (dict_index_is_clust(index)) {
 			templ->rec_field_no = templ->clust_rec_field_no;
@@ -7364,7 +7364,6 @@ build_template_field(
 		DBUG_ASSERT(!ha_innobase::omits_virtual_cols(*table->s));
 		col = &dict_table_get_nth_v_col(index->table, v_no)->m_col;
 		templ->clust_rec_field_no = v_no;
-		templ->rec_prefix_field_no = ULINT_UNDEFINED;
 
 		if (dict_index_is_clust(index)) {
 			templ->rec_field_no = templ->clust_rec_field_no;
diff --git a/storage/rocksdb/CMakeLists.txt b/storage/rocksdb/CMakeLists.txt
index d065c5e7bc3a928d49ea9897c9db4cd2e8d8c473..931aaeb5c646a20eb17ca174de80331c3d9f11eb 100644
--- a/storage/rocksdb/CMakeLists.txt
+++ b/storage/rocksdb/CMakeLists.txt
@@ -54,6 +54,9 @@ IF(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     SKIP_ROCKSDB_PLUGIN("${OLD_COMPILER_MSG}")
   ENDIF()
   SET(CXX11_FLAGS "-std=c++11")
+  IF (GCC_VERSION VERSION_LESS 5.0)
+    SET(CXX11_FLAGS "-std=c++11 -Wno-missing-field-initializers")
+  ENDIF()
 ELSEIF (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   IF ((CMAKE_CXX_COMPILER_VERSION AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS  3.3) OR
      (CLANG_VERSION_STRING AND CLANG_VERSION_STRING VERSION_LESS  3.3))