add minimal signals to trace Comm

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

diff --git a/include/simgrid/s4u/Activity.hpp b/include/simgrid/s4u/Activity.hpp
index 6cd6276..cb8bcc8 100644 (file)
--- a/include/simgrid/s4u/Activity.hpp
+++ b/include/simgrid/s4u/Activity.hpp
@@ -7,6 +7,7 @@
 #define SIMGRID_S4U_ACTIVITY_HPP
 
 #include <simgrid/forward.h>
+#include <xbt/signal.hpp>
 
 namespace simgrid {
 namespace s4u {