This field definitely has sense only when tracing is compiled in.

diff --git a/include/msg/datatypes.h b/include/msg/datatypes.h
index e036fc4..760a2d8 100644 (file)
--- a/include/msg/datatypes.h
+++ b/include/msg/datatypes.h
@@ -73,8 +73,8 @@ typedef struct msg_task {
   char *name;                   /**< @brief task name if any */
   simdata_task_t simdata;       /**< @brief simulator data */
   void *data;                   /**< @brief user data */
-  long long int counter;        /* task unique identifier for instrumentation */
 #ifdef HAVE_TRACING
+  long long int counter;        /* task unique identifier for instrumentation */
   char *category;               /* task category for instrumentation */
 #endif
 } s_msg_task_t;