SIX_SIZE_T_SIZES  839 lj_alloc.c       size_t mmsize = mmap_align(nb + SIX_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
SIX_SIZE_T_SIZES  868 lj_alloc.c         size_t newmmsize = mmap_align(nb + SIX_SIZE_T_SIZES + CHUNK_ALIGN_MASK);