message: fix memfd_build
diff: // -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil -*-
  // Copyright 2017 University of Massachusetts, Amherst
  -// #define USE_MEMFD 1
  -#undef USE_MEMFD
  +#define USE_MEMFD 1
  +// #undef USE_MEMFD
  #ifdef USE_MEMFD
  #include <sys/syscall.h>
  @@ -25,11 +25,9 @@ namespace mesh {
  static void *arenaInstance;
  -#ifndef USE_MEMFD
  static const char *const TMP_DIRS[] = {
  "/dev/shm", "/tmp",
  };
  -#endif
  MeshableArena::MeshableArena() : SuperHeap(), _bitmap{internal::ArenaSize / CPUInfo::PageSize} {
  d_assert(arenaInstance == nullptr);
  