const char *hostname, int argc,
char **argv, xbt_dict_t properties);
void MSG_process_kill_from_SIMIX(smx_process_t p);
-void MSG_comm_copy_data_from_SIMIX(smx_action_t comm, size_t buff_size);
+void MSG_comm_copy_data_from_SIMIX(smx_action_t comm, void* buff, size_t buff_size);
void _MSG_action_init(void);
void _MSG_action_exit(void);