-XBT_PUBLIC_DATA(simgrid::surf::signal<void(NetCard*)>) routingEdgeCreatedCallbacks;
-XBT_PUBLIC_DATA(simgrid::surf::signal<void(As*)>) asCreatedCallbacks;
+XBT_PUBLIC_DATA(simgrid::xbt::signal<void(NetCard*)>) routingEdgeCreatedCallbacks;
+XBT_PUBLIC_DATA(simgrid::xbt::signal<void(As*)>) asCreatedCallbacks;