enable dependencies between activities of different kind

[simgrid.git] / include / simgrid / s4u / Link.hpp

diff --git a/include/simgrid/s4u/Link.hpp b/include/simgrid/s4u/Link.hpp
index ec38e0a30e64ca39bdf296e2277d3cedb465062b..832bd3e0e77c0f2e314aaf44833be6e22d56db0d 100644 (file)
--- a/include/simgrid/s4u/Link.hpp
+++ b/include/simgrid/s4u/Link.hpp
@@ -1,10 +1,10 @@
-/* Copyright (c) 2004-2019. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2004-2020. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
-#ifndef S4U_LINK_HPP_
-#define S4U_LINK_HPP_
+#ifndef S4U_LINK_HPP
+#define S4U_LINK_HPP
 
 #include <simgrid/forward.h>
 #include <simgrid/kernel/resource/Action.hpp>
@@ -20,6 +20,9 @@
  ***********/
 
 namespace simgrid {
+
+extern template class XBT_PUBLIC xbt::Extendable<s4u::Link>;
+
 namespace s4u {
 /** @brief A Link represents the network facilities between [hosts](@ref simgrid::s4u::Host) */
 class XBT_PUBLIC Link : public xbt::Extendable<Link> {
@@ -99,4 +102,4 @@ public:
 } // namespace s4u
 } // namespace simgrid
 
-#endif /* SURF_NETWORK_INTERFACE_HPP_ */
+#endif /* S4U_LINK_HPP */