e_smx_comm_type_t type; /* Type of the communication (SIMIX_COMM_SEND or SIMIX_COMM_RECEIVE) */
smx_mailbox_t mbox = nullptr; /* Rendez-vous where the comm is queued */
-#if HAVE_MC
+#if SIMGRID_HAVE_MC
smx_mailbox_t mbox_cpy = nullptr; /* Copy of the rendez-vous where the comm is queued, MC needs it for DPOR
(comm.mbox set to nullptr when the communication is removed from the mailbox
(used as garbage collector)) */