MMAP_MAX_AREAS   1259 src/alloc.c              mallopt (M_MMAP_MAX, MMAP_MAX_AREAS);
MMAP_MAX_AREAS   1990 src/alloc.c            mallopt (M_MMAP_MAX, MMAP_MAX_AREAS);
MMAP_MAX_AREAS   3559 src/alloc.c        mallopt (M_MMAP_MAX, MMAP_MAX_AREAS);
MMAP_MAX_AREAS   8101 src/alloc.c      mallopt (M_MMAP_MAX, MMAP_MAX_AREAS);   /* Max. number of mmap'ed areas.  */