Revert "I'm so glad that this line is useless"

This reverts commit 5904252e9e4e84030ee544d5efbd832dffa696a7.

It broke builds with tracing=off.

diff --git a/src/msg/msg_private.h b/src/msg/msg_private.h
index 855992f..3c6c04d 100644 (file)
--- a/src/msg/msg_private.h
+++ b/src/msg/msg_private.h
@@ -9,6 +9,7 @@
 
 #include "msg/msg.h"
 #include "simgrid/simix.h"
+#include "surf/surf.h"
 #include "xbt/fifo.h"
 #include "xbt/dynar.h"
 #include "xbt/swag.h"