S_ISLNK          1651 dir.c          #    define S_ISLNK(m) (0)
S_ISLNK          1653 dir.c          #    define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
S_ISLNK          1383 file.c         #    define S_ISLNK(m) _S_ISLNK(m)
S_ISLNK          1386 file.c         #      define S_ISLNK(m) (((m) & S_IFMT) == _S_IFLNK)
S_ISLNK          1389 file.c         #	 define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)