/**
* Display a warning to the user. Title should be a short (general) summary.
* Only use this if the user cannot perform some remedial action.
+ * \p askshowagain will display a check box where the user can turn off the
+ * warning for future cases. Ponder carefully if this is feasible.
*/
-void warning(docstring const & title, docstring const & message);
+void warning(docstring const & title, docstring const & message,
+ bool const & askshowagain = false);
/**
* Display a warning to the user. Title should be a short (general) summary.