-# fstatat.m4 serial 1
-dnl Copyright (C) 2004-2011 Free Software Foundation, Inc.
+# fstatat.m4 serial 3
+dnl Copyright (C) 2004-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CHECK_FUNCS_ONCE([fstatat])
if test $ac_cv_func_fstatat = no; then
dnl <http://lists.gnu.org/archive/html/bug-tar/2011-09/msg00015.html>.
AC_CACHE_CHECK([whether fstatat (..., 0) works],
[gl_cv_func_fstatat_zero_flag],
- [gl_cv_func_fstatat_zero_flag=no
- AC_RUN_IFELSE(
+ [AC_RUN_IFELSE(
[AC_LANG_SOURCE(
[[
#include <fcntl.h>
return fstatat (AT_FDCWD, ".", &a, 0) != 0;
}
]])],
- [gl_cv_func_fstatat_zero_flag=yes])])
+ [gl_cv_func_fstatat_zero_flag=yes],
+ [gl_cv_func_fstatat_zero_flag=no],
+ [case "$host_os" in
+ aix*) gl_cv_func_fstatat_zero_flag="guessing no";;
+ *) gl_cv_func_fstatat_zero_flag="guessing yes";;
+ esac
+ ])
+ ])
case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in
- yes+yes) ;;
+ *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
+ case $gl_cv_func_fstatat_zero_flag in
+ *yes)
+ AC_DEFINE([HAVE_WORKING_FSTATAT_ZERO_FLAG], [1],
+ [Define to 1 if fstatat (..., 0) works.
+ For example, it does not work in AIX 7.1.])
+ ;;
+ esac
;;
esac
fi