extern XBT_PRIVATE char* _sg_mc_dot_output_file;
extern XBT_PUBLIC(int) _sg_mc_comms_determinism;
extern XBT_PUBLIC(int) _sg_mc_send_determinism;
-extern XBT_PRIVATE int _sg_mc_liveness;
extern XBT_PRIVATE int _sg_mc_snapshot_fds;
extern XBT_PRIVATE int _sg_mc_termination;