/* Internal variable used to check if we're running under the MC
*
* Please don't use directly: you should use MC_is_active. */
-extern int _sg_do_model_check;
-extern int _sg_mc_visited;
+extern XBT_PUBLIC(int) _sg_do_model_check;
+extern XBT_PUBLIC(int) _sg_mc_visited;
#define MC_is_active() _sg_do_model_check
#define MC_visited_reduction() _sg_mc_visited