-# If we have the fchownat function, and it has the bug (in glibc-2.4)
-# that it dereferences symlinks even with AT_SYMLINK_NOFOLLOW, then
-# use the replacement function.
-# Also if the fchownat function, like chown, has the trailing slash bug,
-# use the replacement function.
-# Also use the replacement function if fchownat is simply not available.
-AC_DEFUN([gl_FUNC_FCHOWNAT],
-[
- AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
- AC_REQUIRE([gl_FUNC_CHOWN])
- AC_CHECK_FUNC([fchownat],
- [gl_FUNC_FCHOWNAT_DEREF_BUG(
- [REPLACE_FCHOWNAT=1
- AC_DEFINE([FCHOWNAT_NOFOLLOW_BUG], [1],
- [Define to 1 if your platform has fchownat, but it cannot
- perform lchown tasks.])
- ])
- gl_FUNC_FCHOWNAT_EMPTY_FILENAME_BUG(
- [REPLACE_FCHOWNAT=1
- AC_DEFINE([FCHOWNAT_EMPTY_FILENAME_BUG], [1],
- [Define to 1 if your platform has fchownat, but it does
- not reject an empty file name.])
- ])
- if test $REPLACE_CHOWN = 1; then
- REPLACE_FCHOWNAT=1
- fi],
- [HAVE_FCHOWNAT=0])
- if test $HAVE_FCHOWNAT = 0 || test $REPLACE_FCHOWNAT = 1; then
- AC_LIBOBJ([fchownat])
+ case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in
+ yes+yes) ;;
+ *) REPLACE_FSTATAT=1
+ if test $gl_cv_func_fstatat_zero_flag != yes; then
+ AC_DEFINE([FSTATAT_ZERO_FLAG_BROKEN], [1],
+ [Define to 1 if fstatat (..., 0) does not work,
+ as in AIX 7.1.])
+ fi
+ ;;
+ esac