h2olog: suppress warnings [-Wdelete-abstract-non-virtual-dtor]
@@ -68,6 +68,9 @@ class h2o_tracer
stats_.num_events = 0;
stats_.num_lost = 0;
}
+
+ virtual ~h2o_tracer() {}
+
/**
* Performs post-construction initialization common to all the tracers.
*/
