diff --git a/ChangeLog b/ChangeLog
index b529474..e80be4f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,10 @@
 ChangeLog for davfs2
 --------------------
 
+2012-01-07 Werner Baumann (werner.baumann@onlinehome.de)
+    * configure.ac:
+      Use newer versions of auto-tools.
+
 2011-12-18 Werner Baumann (werner.baumann@onlinehome.de)
     * webdav.c, dav_quota:
       Check for all but temporary errors on USERINFO.
diff --git a/config/INSTALL.davfs2 b/config/INSTALL.davfs2
index ff94630..e54f9c9 100644
--- a/config/INSTALL.davfs2
+++ b/config/INSTALL.davfs2
@@ -1,4 +1,4 @@
-2010-12-31
+2012-01-07
 ----------
 
 # Copyright (C) 2006, 2007, 2008, 2009, 2010 Werner Baumann
@@ -34,16 +34,6 @@ installed the user may merge the changes form the old files into
 the new versions.
 
 
-UPDATING FROM 1.0.x
--------------------
-
-In davfs2 1.1.0 the organization of the permanent cache has changed
-compared to the 1.0.x releases and the cache needs to be rebuild. Files
-in the backup directory will be lost. So before installing the new version,
-you should start your old version of mount.davfs a last time and save all
-the files from the backup directory you may need some day.
-
-
 2 INSTALLATION
 ==============
 
@@ -60,7 +50,7 @@ large files, you may build your own neon library. You can get it from
 http://www.webdav.org/neon/
 
 Your kernel must include either the coda file system or the fuse file system
-or both. They may be loadable modules. Almost all Linux 2.4 and 2.6 kernels
+or both. They may be loadable modules. Almost all Linux 2.6 kernels or newer
 support at least one of them.
 
 
@@ -68,17 +58,21 @@ support at least one of them.
 ---------------------------------
 
 To build davfs2 from the CVS sources you need recent versions of the some
-build tools:
+build tools. The build process is tested with the versions mentioned below.
+Other versions may work but you have to take care of possible incombatibilities
+between some versions of these tools and may need to tweak configure.ac.
+Gnulib will require to use a version of gettext that was recent at the time
+Gnulib was taken from the repository.
 
-- GNU Autoconf 2.61 or newer
-- GNU Automake 1.10.1 or newer
-- GNU gettext-tools 0.17 or newer
-- po4a 0.34 or newer
-- gperf 3.0.3 or newer
-- Gnulib
-  The bootstrap script must be able to find gnulib-tool. For this you
-  should create a symbolic link to gnulib-tool in a directory that is in
-  your PATH environment variable.
+- GNU Autoconf 2.67
+- GNU Automake 1.11.1
+- GNU gettext-tools 0.18.1
+- po4a 0.40.2
+- gperf 3.0.3
+- Gnulib from 2010-07-04
+  The bootstrap script must be able to find gnulib-tool. If you are not using
+  gnulib from your distribution you might create a symbolic link to gnulib-tool
+  in a directory that is in your PATH environment variable.
 
 Change into the top level source directory and run
     $ ./bootstrap
diff --git a/configure.ac b/configure.ac
index a6836ff..22a70ca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-# Copyright (C) 2006, 2007, 2008, 2009 Werner Baumann
+# Copyright (C) 2006, 2007, 2008, 2009, 2012 Werner Baumann
 #
 # This file is part of davfs2.
 #
@@ -20,7 +20,7 @@
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
 
 
-AC_PREREQ(2.59)
+AC_PREREQ(2.67)
 AC_INIT(davfs2, 1.4.6, http://savannah.nongnu.org/projects/davfs2)
 AC_CONFIG_SRCDIR([src/cache.c])
 AC_CONFIG_AUX_DIR([config])
@@ -37,7 +37,7 @@ AC_PROG_LN_S
 gl_INIT
 
 # Checks for libraries.
-AM_GNU_GETTEXT_VERSION(0.14.4)
+AM_GNU_GETTEXT_VERSION(1.18)
 AM_GNU_GETTEXT([external])
 NE_REQUIRE_VERSIONS([0], [25 26 27 28 29])
 DAV_CHECK_NEON