message: Use locking in dlmalloc
diff: @@ -526,6 +526,7 @@ MAX_RELEASE_CHECK_RATE default: 4095 unless not HAVE_MMAP
  #define HAVE_MMAP 0
  #define LACKS_ERRNO_H
  #define LACKS_FCNTL_H
  +#define LACKS_SCHED_H
  #define LACKS_STDLIB_H
  #define LACKS_STRING_H
  #define LACKS_SYS_MMAN_H
  @@ -533,6 +534,8 @@ MAX_RELEASE_CHECK_RATE default: 4095 unless not HAVE_MMAP
  #define LACKS_UNISTD_H
  #define NO_MALLOC_STATS 1
  #define USE_DL_PREFIX 1
  +#define USE_LOCKS 1
  +#define USE_SPIN_LOCKS 1
  #define malloc_getpagesize ((size_t)4096U)
  