extern const struct blkid_idinfo sysv_idinfo;
extern const struct blkid_idinfo xenix_idinfo;
extern const struct blkid_idinfo btrfs_idinfo;
extern const struct blkid_idinfo sysv_idinfo;
extern const struct blkid_idinfo xenix_idinfo;
extern const struct blkid_idinfo btrfs_idinfo;