Py3.8: missing initializer for member '_typeobject::tp_vectorcall' [-Wmissing-field-initializers]

src/Tools/generateTemplates/templateClassPyExport.py

@@ -366,6 +366,9 @@ PyTypeObject @self.export.Name@::Type = {
 #if PY_MAJOR_VERSION >= 3
     ,0                                                /*tp_finalize */
 #endif
+#if PY_VERSION_HEX >= 0x03080000
+    ,0                                                /*tp_vectorcall */
+#endif
 };
 
 /// Methods structure of @self.export.Name@