LFS_VERSION
#define DFL_VERSION LFS_VERSION
.dlfs_version = LFS_VERSION,
.dlfs_version = LFS_VERSION,
version = strsuftoi64("file system version", optarg, 1, LFS_VERSION, NULL);
lfs_sb_getversion(altsb) > LFS_VERSION ||
lfs_sb_getversion(primarysb) > LFS_VERSION ||