XBT_PRIVATE void SIMIX_execution_set_priority(smx_activity_t synchro, double priority);
XBT_PRIVATE void SIMIX_execution_set_bound(smx_activity_t synchro, double bound);
XBT_PRIVATE void SIMIX_execution_set_priority(smx_activity_t synchro, double priority);
XBT_PRIVATE void SIMIX_execution_set_bound(smx_activity_t synchro, double bound);