#if !defined ISO && !defined ISO99 && !defined ISO11 && !defined POSIX && !defined POSIX2008
# ifndef XPG4
type {struct FTW}
element {struct FTW} int base
element {struct FTW} int level
# endif

macro FTW_F
macro FTW_D
macro FTW_DNR
# if !defined XPG4 && !defined XPG42
macro FTW_DP
# endif
macro FTW_NS

# ifndef XPG4
macro FTW_SL
macro FTW_SLN

macro FTW_PHYS
macro FTW_MOUNT
macro FTW_DEPTH
macro FTW_CHDIR
# endif

function int ftw (const char*, int (*) (const char *, const struct stat*, int), int)
# ifndef XPG4
function int nftw (const char*, int (*) (const char *, const struct stat*, int, struct FTW *), int, int)
# endif

allow-header sys/stat.h

allow *_t
allow FTW*
#endif