AT_FDCWD          126 gnulib-tests/test-dup2.c   ASSERT (dup2 (AT_FDCWD, fd) == -1);
AT_FDCWD          292 lib/fcntl.in.h #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
AT_FDCWD          299 lib/fcntl.in.h #ifndef AT_FDCWD