make update-copyright

35 files changed, 55 insertions, 50 deletions

diff --git a/lib/Autom4te/C4che.pm b/lib/Autom4te/C4che.pm
index 5e3bea37..f5164811 100644
--- a/lib/Autom4te/C4che.pm
+++ b/lib/Autom4te/C4che.pm
@@ -1,6 +1,6 @@
 # autoconf -- create `configure' using m4 macros
-# Copyright (C) 2003, 2006, 2009-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2003, 2006, 2009-2017, 2020-2021 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/lib/Autom4te/Config.pm b/lib/Autom4te/Config.pm
index 23c5ac14..afb4f8f2 100644
--- a/lib/Autom4te/Config.pm
+++ b/lib/Autom4te/Config.pm
@@ -1,5 +1,5 @@
 #  -*- Perl -*-
-# Copyright (C) 2003-2020 Free Software Foundation, Inc.
+# Copyright (C) 2003-2021 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/lib/Autom4te/General.pm b/lib/Autom4te/General.pm
index e07e7e0f..fac67ab1 100644
--- a/lib/Autom4te/General.pm
+++ b/lib/Autom4te/General.pm
@@ -1,5 +1,5 @@
 # autoconf -- create `configure' using m4 macros
-# Copyright (C) 2001-2004, 2006-2007, 2009-2017, 2020 Free Software
+# Copyright (C) 2001-2004, 2006-2007, 2009-2017, 2020-2021 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
diff --git a/lib/Autom4te/Request.pm b/lib/Autom4te/Request.pm
index b3be33c7..67a60074 100644
--- a/lib/Autom4te/Request.pm
+++ b/lib/Autom4te/Request.pm
@@ -1,6 +1,6 @@
 # autoconf -- create `configure' using m4 macros
-# Copyright (C) 2001-2003, 2009-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2001-2003, 2009-2017, 2020-2021 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/lib/autoconf/autoconf.m4 b/lib/autoconf/autoconf.m4
index 934ef184..c1c2c789 100644
--- a/lib/autoconf/autoconf.m4
+++ b/lib/autoconf/autoconf.m4
@@ -1,8 +1,8 @@
 # This file is part of Autoconf.                -*- Autoconf -*-
 # Driver that loads the Autoconf macro files.
 #
-# Copyright (C) 1994, 1999-2002, 2006, 2008-2017, 2020 Free Software
-# Foundation, Inc.
+# Copyright (C) 1994, 1999-2002, 2006, 2008-2017, 2020-2021 Free
+# Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/autoheader.m4 b/lib/autoconf/autoheader.m4
index f5764e5e..0611e4bf 100644
--- a/lib/autoconf/autoheader.m4
+++ b/lib/autoconf/autoheader.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Interface with autoheader.
 
-# Copyright (C) 1992-1996, 1998-2002, 2008-2017, 2020 Free Software
+# Copyright (C) 1992-1996, 1998-2002, 2008-2017, 2020-2021 Free Software
 # Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
diff --git a/lib/autoconf/autoscan.m4 b/lib/autoconf/autoscan.m4
index 332e9ebe..450a6d58 100644
--- a/lib/autoconf/autoscan.m4
+++ b/lib/autoconf/autoscan.m4
@@ -1,7 +1,8 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Interface with autoscan.
 
-# Copyright (C) 2002, 2009-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2009-2017, 2020-2021 Free Software Foundation,
+# Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/autotest.m4 b/lib/autoconf/autotest.m4
index 141bbbe0..0ffb9ec7 100644
--- a/lib/autoconf/autotest.m4
+++ b/lib/autoconf/autotest.m4
@@ -1,6 +1,6 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Interface with Autotest.
-# Copyright (C) 1992-1996, 1998-2005, 2009-2017, 2020 Free Software
+# Copyright (C) 1992-1996, 1998-2005, 2009-2017, 2020-2021 Free Software
 # Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
diff --git a/lib/autoconf/autoupdate.m4 b/lib/autoconf/autoupdate.m4
index a3e13a69..2b495d30 100644
--- a/lib/autoconf/autoupdate.m4
+++ b/lib/autoconf/autoupdate.m4
@@ -1,8 +1,8 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Interface with autoupdate.
 
-# Copyright (C) 1992-1996, 1998-2001, 2003-2004, 2006, 2009-2017, 2020
-# Free Software Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2001, 2003-2004, 2006, 2009-2017,
+# 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4
index 7ad6b4f7..9f881f0b 100644
--- a/lib/autoconf/c.m4
+++ b/lib/autoconf/c.m4
@@ -1,6 +1,6 @@
 # This file is part of Autoconf.			-*- Autoconf -*-
 # Programming languages support.
-# Copyright (C) 2001-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017, 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/erlang.m4 b/lib/autoconf/erlang.m4
index b1d3ab1f..50bc9313 100644
--- a/lib/autoconf/erlang.m4
+++ b/lib/autoconf/erlang.m4
@@ -1,6 +1,7 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Erlang/OTP language support.
-# Copyright (C) 2006, 2008-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2008-2017, 2020-2021 Free Software Foundation,
+# Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4
index 16bd9cb0..641c5fb6 100644
--- a/lib/autoconf/fortran.m4
+++ b/lib/autoconf/fortran.m4
@@ -1,6 +1,7 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Fortran languages support.
-# Copyright (C) 2001, 2003-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003-2017, 2020-2021 Free Software Foundation,
+# Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index 12f60b99..c5add9f8 100644
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -1,6 +1,6 @@
 # This file is part of Autoconf.			-*- Autoconf -*-
 # Checking for functions.
-# Copyright (C) 2000-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index 47f7ee42..053130b3 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -1,7 +1,8 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Parameterized macros.
 m4_define([_AC_COPYRIGHT_YEARS], [
-Copyright (C) 1992-1996, 1998-2017, 2020 Free Software Foundation, Inc.
+Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+Inc.
 ])
 
 # This file is part of Autoconf.  This program is free
diff --git a/lib/autoconf/go.m4 b/lib/autoconf/go.m4
index e86700a6..ac91cddf 100644
--- a/lib/autoconf/go.m4
+++ b/lib/autoconf/go.m4
@@ -1,6 +1,6 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Go language support.
-# Copyright (C) 2011-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2011-2017, 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/headers.m4 b/lib/autoconf/headers.m4
index 802eec2f..548f0562 100644
--- a/lib/autoconf/headers.m4
+++ b/lib/autoconf/headers.m4
@@ -1,8 +1,8 @@
 # This file is part of Autoconf.			-*- Autoconf -*-
 # Checking for headers.
 #
-# Copyright (C) 1988, 1999-2004, 2006, 2008-2017, 2020 Free Software
-# Foundation, Inc.
+# Copyright (C) 1988, 1999-2004, 2006, 2008-2017, 2020-2021 Free
+# Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/lang.m4 b/lib/autoconf/lang.m4
index b1e730a2..daa88418 100644
--- a/lib/autoconf/lang.m4
+++ b/lib/autoconf/lang.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Programming languages support.
-# Copyright (C) 2000-2002, 2004-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2000-2002, 2004-2017, 2020-2021 Free Software
+# Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/libs.m4 b/lib/autoconf/libs.m4
index f2343bcc..901c9733 100644
--- a/lib/autoconf/libs.m4
+++ b/lib/autoconf/libs.m4
@@ -1,6 +1,6 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Checking for libraries.
-# Copyright (C) 1992-1996, 1998-2006, 2008-2017, 2020 Free Software
+# Copyright (C) 1992-1996, 1998-2006, 2008-2017, 2020-2021 Free Software
 # Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
diff --git a/lib/autoconf/oldnames.m4 b/lib/autoconf/oldnames.m4
index 843d60d9..671b523f 100644
--- a/lib/autoconf/oldnames.m4
+++ b/lib/autoconf/oldnames.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.                           -*- Autoconf -*-
 # Support old macros, and provide automated updates.
-# Copyright (C) 1994, 1999-2001, 2003, 2009-2017, 2020 Free Software
-# Foundation, Inc.
+# Copyright (C) 1994, 1999-2001, 2003, 2009-2017, 2020-2021 Free
+# Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/programs.m4 b/lib/autoconf/programs.m4
index 63e07043..588a7bdc 100644
--- a/lib/autoconf/programs.m4
+++ b/lib/autoconf/programs.m4
@@ -1,8 +1,8 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Checking for programs.
 
-# Copyright (C) 1992-1996, 1998-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software
+# Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4
index 853276bb..2752e05d 100644
--- a/lib/autoconf/specific.m4
+++ b/lib/autoconf/specific.m4
@@ -1,8 +1,8 @@
 # This file is part of Autoconf.			-*- Autoconf -*-
 # Macros that test for specific, unclassified, features.
 #
-# Copyright (C) 1992-1996, 1998-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software
+# Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/status.m4 b/lib/autoconf/status.m4
index d11a221c..ca8cb692 100644
--- a/lib/autoconf/status.m4
+++ b/lib/autoconf/status.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.                       -*- Autoconf -*-
 # Parameterizing and creating config.status.
-# Copyright (C) 1992-1996, 1998-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software
+# Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autoconf/types.m4 b/lib/autoconf/types.m4
index fff850ac..6d170918 100644
--- a/lib/autoconf/types.m4
+++ b/lib/autoconf/types.m4
@@ -1,8 +1,8 @@
 # This file is part of Autoconf.			-*- Autoconf -*-
 # Type related macros: existence, sizeof, and structure members.
 #
-# Copyright (C) 2000-2002, 2004-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2000-2002, 2004-2017, 2020-2021 Free Software
+# Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autom4te.in b/lib/autom4te.in
index 566c5dca..9e86c9ff 100644
--- a/lib/autom4te.in
+++ b/lib/autom4te.in
@@ -1,6 +1,6 @@
 # Definition of Autom4te option sets.                     -*- Makefile -*-
 #
-# Copyright (C) 2001-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017, 2020-2021 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/lib/autoscan/autoscan.pre b/lib/autoscan/autoscan.pre
index effd915c..85797e65 100644
--- a/lib/autoscan/autoscan.pre
+++ b/lib/autoscan/autoscan.pre
@@ -1,5 +1,5 @@
 # autoscan's mapping to Autoconf macros      -*- Makefile -*-
-# Copyright (C) 1992-1994, 1996, 1999-2002, 2009-2017, 2020 Free
+# Copyright (C) 1992-1994, 1996, 1999-2002, 2009-2017, 2020-2021 Free
 # Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
diff --git a/lib/autotest/autotest.m4 b/lib/autotest/autotest.m4
index 0f02b52f..76d410be 100644
--- a/lib/autotest/autotest.m4
+++ b/lib/autotest/autotest.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.			-*- Autoconf -*-
 # M4 macros used in building test suites.
-# Copyright (C) 2000-2002, 2009-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2000-2002, 2009-2017, 2020-2021 Free Software
+# Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/autotest/general.m4 b/lib/autotest/general.m4
index 0c0e3c5b..40c92d93 100644
--- a/lib/autotest/general.m4
+++ b/lib/autotest/general.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.                          -*- Autoconf -*-
 # M4 macros used in building test suites.
 m4_define([_AT_COPYRIGHT_YEARS], [
-Copyright (C) 2000-2017, 2020 Free Software Foundation, Inc.
+Copyright (C) 2000-2017, 2020-2021 Free Software Foundation, Inc.
 ])
 
 # This file is part of Autoconf.  This program is free
diff --git a/lib/autotest/specific.m4 b/lib/autotest/specific.m4
index 9d628598..3558205a 100644
--- a/lib/autotest/specific.m4
+++ b/lib/autotest/specific.m4
@@ -1,7 +1,7 @@
 # This file is part of Autoconf.                          -*- Autoconf -*-
 # M4 macros used in running tests using third-party testing tools.
 m4_define([_AT_COPYRIGHT_YEARS],
-[Copyright (C) 2009-2017, 2020 Free Software Foundation, Inc.])
+[Copyright (C) 2009-2017, 2020-2021 Free Software Foundation, Inc.])
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/emacs/autoconf-mode.el b/lib/emacs/autoconf-mode.el
index b22cbd1e..509502c7 100644
--- a/lib/emacs/autoconf-mode.el
+++ b/lib/emacs/autoconf-mode.el
@@ -6,8 +6,8 @@
 
 ;; This file is part of Autoconf
 
-;; Copyright (C) 2001, 2006, 2009-2017, 2020 Free Software Foundation,
-;; Inc.
+;; Copyright (C) 2001, 2006, 2009-2017, 2020-2021 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/lib/emacs/autotest-mode.el b/lib/emacs/autotest-mode.el
index 1b131745..f34941ea 100644
--- a/lib/emacs/autotest-mode.el
+++ b/lib/emacs/autotest-mode.el
@@ -5,7 +5,8 @@
 
 ;; This file is part of Autoconf
 
-;; Copyright (C) 2001, 2009-2017, 2020 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2009-2017, 2020-2021 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/lib/freeze.mk b/lib/freeze.mk
index ee1d6fcd..b7d4bdc1 100644
--- a/lib/freeze.mk
+++ b/lib/freeze.mk
@@ -1,7 +1,7 @@
 # Freeze M4 files.
 
-# Copyright (C) 2002, 2004, 2006-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002, 2004, 2006-2017, 2020-2021 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/lib/local.mk b/lib/local.mk
index e380403f..affe946b 100644
--- a/lib/local.mk
+++ b/lib/local.mk
@@ -1,7 +1,7 @@
 # Make Autoconf-related libraries.
 
-# Copyright (C) 2001-2005, 2009-2017, 2020 Free Software Foundation,
-# Inc.
+# Copyright (C) 2001-2005, 2009-2017, 2020-2021 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/lib/m4sugar/foreach.m4 b/lib/m4sugar/foreach.m4
index 2052d44c..29d07a1b 100644
--- a/lib/m4sugar/foreach.m4
+++ b/lib/m4sugar/foreach.m4
@@ -4,7 +4,7 @@
 # Speeds up GNU M4 1.4.x by avoiding quadratic $@ recursion, but penalizes
 # GNU M4 1.6 by requiring more memory and macro expansions.
 #
-# Copyright (C) 2008-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2008-2017, 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4
index 9d543952..ce531520 100644
--- a/lib/m4sugar/m4sh.m4
+++ b/lib/m4sugar/m4sh.m4
@@ -2,7 +2,7 @@
 # M4 sugar for common shell constructs.
 # Requires GNU M4 and M4sugar.
 #
-# Copyright (C) 2000-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 2000-2017, 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the
diff --git a/lib/m4sugar/m4sugar.m4 b/lib/m4sugar/m4sugar.m4
index b42fc1a6..0ea671d7 100644
--- a/lib/m4sugar/m4sugar.m4
+++ b/lib/m4sugar/m4sugar.m4
@@ -3,7 +3,7 @@ divert(-1)#                                                  -*- Autoconf -*-
 # Base M4 layer.
 # Requires GNU M4.
 #
-# Copyright (C) 1999-2017, 2020 Free Software Foundation, Inc.
+# Copyright (C) 1999-2017, 2020-2021 Free Software Foundation, Inc.
 
 # This file is part of Autoconf.  This program is free
 # software; you can redistribute it and/or modify it under the