lfs_dirheader32
__CTASSERT(sizeof(struct lfs_dirheader32) == 8);
struct lfs_dirheader32 u_32;
__CTASSERT(__alignof(union lfs_dirheader) == __alignof(struct lfs_dirheader32));
struct lfs_dirheader32 dot_header;
struct lfs_dirheader32 dotdot_header;
((fs)->lfs_is64 ? sizeof(struct lfs_dirheader64) : sizeof(struct lfs_dirheader32))