Update after gnulib changed.

* configure.ac (AC_PREREQ): Require Autoconf >= 2.64.
* doc/configure.ac (AC_PREREQ): Likewise.
* lib/configure.ac (AC_PREREQ): Likewise.
* src/configure.ac (AC_PREREQ): Likewise.
* tests/configure.ac (AC_PREREQ): Likewise.
* autogen.sh: Update comment.

7 files changed, 22 insertions, 12 deletions

diff --git a/ChangeLog b/ChangeLog
index 982896f..46ff3ec 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2020-08-29  Bruno Haible  <bruno@clisp.org>
+
+	Update after gnulib changed.
+	* configure.ac (AC_PREREQ): Require Autoconf >= 2.64.
+	* doc/configure.ac (AC_PREREQ): Likewise.
+	* lib/configure.ac (AC_PREREQ): Likewise.
+	* src/configure.ac (AC_PREREQ): Likewise.
+	* tests/configure.ac (AC_PREREQ): Likewise.
+	* autogen.sh: Update comment.
+
 2020-02-10  Bruno Haible  <bruno@clisp.org>
 
 	Rely entirely on the GNU Build System.
diff --git a/autogen.sh b/autogen.sh
index aee22e8..08fb310 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -4,13 +4,13 @@
 # also regenerates all config.h.in, configure files with new versions of
 # autoconf.
 #
-# This script requires autoconf-2.63..2.69 in the PATH.
+# This script requires autoconf-2.64..2.69 in the PATH.
 # It also requires either
 #   - the GNULIB_TOOL environment variable pointing to the gnulib-tool script
 #     in a gnulib checkout, or
 #   - an internet connection.
 
-# Copyright (C) 2003-2012, 2016, 2018 Free Software Foundation, Inc.
+# Copyright (C) 2003-2020 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/configure.ac b/configure.ac
index 295abf1..1c269f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl autoconf configuration for gperf
 
-dnl Copyright (C) 1998, 2002, 2003, 2005-2007, 2009-2010, 2012, 2018 Free Software Foundation, Inc.
+dnl Copyright (C) 1998-2020 Free Software Foundation, Inc.
 dnl Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
 dnl and Bruno Haible <bruno@clisp.org>.
 dnl
@@ -19,7 +19,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.63])
+AC_PREREQ([2.64])
 AC_INIT([doc/gperf.texi])
 AC_CONFIG_AUX_DIR([build-aux])
 
diff --git a/doc/configure.ac b/doc/configure.ac
index d377283..2ec24cf 100644
--- a/doc/configure.ac
+++ b/doc/configure.ac
@@ -1,6 +1,6 @@
 dnl autoconf configuration for gperf/doc
 
-dnl Copyright (C) 1998, 2000, 2002-2003, 2007, 2009, 2012, 2018 Free Software Foundation, Inc.
+dnl Copyright (C) 1998-2020 Free Software Foundation, Inc.
 dnl Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
 dnl and Bruno Haible <bruno@clisp.org>.
 dnl
@@ -19,7 +19,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.63])
+AC_PREREQ([2.64])
 AC_INIT([gperf.texi])
 PACKAGE=gperf
 AC_SUBST([PACKAGE])
diff --git a/lib/configure.ac b/lib/configure.ac
index f5c612e..cb31722 100644
--- a/lib/configure.ac
+++ b/lib/configure.ac
@@ -1,6 +1,6 @@
 dnl autoconf configuration for gperf/lib
 
-dnl Copyright (C) 1998, 2002, 2005, 2007, 2009, 2016, 2018 Free Software Foundation, Inc.
+dnl Copyright (C) 1998-2020 Free Software Foundation, Inc.
 dnl Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
 dnl and Bruno Haible <bruno@clisp.org>.
 dnl
@@ -19,7 +19,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.63])
+AC_PREREQ([2.64])
 AC_INIT([hash.cc])
 AC_PROG_MAKE_SET
 dnl
diff --git a/src/configure.ac b/src/configure.ac
index c976dad..9a76644 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -1,6 +1,6 @@
 dnl autoconf configuration for gperf/src
 
-dnl Copyright (C) 1998, 2000, 2002-2003, 2007, 2009, 2018 Free Software Foundation, Inc.
+dnl Copyright (C) 1998-2020 Free Software Foundation, Inc.
 dnl Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
 dnl and Bruno Haible <bruno@clisp.org>.
 dnl
@@ -19,7 +19,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.63])
+AC_PREREQ([2.64])
 AC_INIT([main.cc])
 AC_CONFIG_HEADERS([config.h])
 AC_PROG_MAKE_SET
diff --git a/tests/configure.ac b/tests/configure.ac
index a4a87e0..bc8b6a6 100644
--- a/tests/configure.ac
+++ b/tests/configure.ac
@@ -1,6 +1,6 @@
 dnl autoconf configuration for gperf/tests
 
-dnl Copyright (C) 1998, 2002, 2007, 2009, 2018 Free Software Foundation, Inc.
+dnl Copyright (C) 1998-2020 Free Software Foundation, Inc.
 dnl Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
 dnl and Bruno Haible <bruno@clisp.org>.
 dnl
@@ -19,7 +19,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.63])
+AC_PREREQ([2.64])
 AC_INIT([c-parse.gperf])
 AC_PROG_MAKE_SET
 dnl