CVS cygwin and fstatat

[Eric Blake]

CVS cygwin (will become 1.7.0) just added native fstatat support.  In the 
process, I noticed that findutils was still trying to compile the replacement 
fstatat.c, because this cache check was referencing an undefined variable.  I'm 
checking this in:


>From e2f83854bc3e96ece16f2c0134cabf460cf21293 Mon Sep 17 00:00:00 2001
From: Eric Blake <address@hidden>
Date: Fri, 25 Apr 2008 14:52:38 -0600
Subject: [PATCH] Use native fstatat on cygwin 1.7.0.

* m4/openat.m4 (gl_FUNC_OPENAT): Make sure lstat check is made
first.

Signed-off-by: Eric Blake <address@hidden>
---
 ChangeLog    |    6 ++++++
 m4/openat.m4 |    7 ++++---
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 769f0f3..605726e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-04-25  Eric Blake  <address@hidden>
+
+       Use native fstatat on cygwin 1.7.0.
+       * m4/openat.m4 (gl_FUNC_OPENAT): Make sure lstat check is made
+       first.
+
 2008-04-23  Eric Blake  <address@hidden>
 
        Improve memchr2 performance.
diff --git a/m4/openat.m4 b/m4/openat.m4
index 43f46d0..3b5b7ca 100644
--- a/m4/openat.m4
+++ b/m4/openat.m4
@@ -1,7 +1,7 @@
-#serial 15
+#serial 16
 # See if we need to use our replacement for Solaris' openat et al functions.
 
-dnl Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+dnl Copyright (C) 2004, 2005, 2006, 2007, 2008 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.
@@ -15,6 +15,7 @@ AC_DEFUN([gl_FUNC_OPENAT],
   AC_CHECK_FUNCS_ONCE([lchmod])
   AC_CHECK_FUNCS_ONCE([fdopendir])
   AC_REPLACE_FUNCS([fchmodat mkdirat openat])
+  AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
   case $ac_cv_func_openat+$ac_cv_func_lstat_dereferences_slashed_symlink in
   yes+yes) ;;
   yes+*) AC_LIBOBJ([fstatat]);;
-- 
1.5.5.1