--- mongo-c-driver-1.9.1/src/tools/mongoc-stat.c 2018-01-04 19:41:10.000000000 -0500 +++ mongo-c-driver/src/tools/mongoc-stat.c-new 2018-01-30 14:04:07.300797964 -0500 @@ -94,7 +94,11 @@ snprintf (name, sizeof name, "/mongoc-%u", pid); name[sizeof name - 1] = '\0'; +#if defined(BSON_OS_UNIX) && defined(MONGOC_ENABLE_SHM_COUNTERS) if (-1 == (fd = shm_open (name, O_RDONLY, 0))) { +#else + if (true) { +#endif perror ("Failed to load shared memory segment"); return NULL; }