+/** Environment variable name used to pass the communication socket.
+ *
+ * It is set by `simgrid-mc` to enable MC support in the children processes.
+ *
+ * It is placed in this file so that it's visible from mmalloc and MC without sharing anythin of xbt in mmalloc
+ */
+#define MC_ENV_SOCKET_FD "SIMGRID_MC_SOCKET_FD"
+