-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_creation;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_suspend;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_resume;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_sleep;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_wake_up;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_migration_start;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_migration_end;
-simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::on_destruction;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_creation;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_suspend;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_resume;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_sleep;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_wake_up;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_migration_start;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_migration_end;
+xbt::signal<void(ActorPtr)> s4u::Actor::on_destruction;