_haiku_build_fs_fopen_attr_dir
# define fs_fopen_attr_dir _haiku_build_fs_fopen_attr_dir
dir = _haiku_build_fs_fopen_attr_dir(fd);
return (addr_t)_haiku_build_fs_fopen_attr_dir(fd);
void *_haiku_build_fs_fopen_attr_dir(int fd);