-// Try to guess if MSG_wait destroys communications or not, because it
-// changed after SimGrid 3.5.
-//
-// Use some define introduced after that. fixme: dirty hack
-//
-#if defined(XBT_RUNNING_CTX_INITIALIZER)
-# define MSG_WAIT_DESTROYS_COMMS 0
+#if defined(__has_include)
+# if __has_include(<simgrid/config.h>)
+# include <simgrid/config.h>
+# else
+# include <simgrid_config.h>
+# endif