struct lbx *lbx_open(void *handle, const struct lbx_file_ops *fops,
int (*destructor)(void *handle), const char *name);
struct lbx *lbx_fopen(const char *);
struct lbx *lbx_open(void *handle, const struct lbx_file_ops *fops,
int (*destructor)(void *handle), const char *name);
struct lbx *lbx_fopen(const char *);