Update from Gnulib by running admin/merge-gnulib

2025-12-05 22:20:24 -08:00 · 2024-05-11 13:16:48 -07:00 · 2024-05-11 13:16:48 -07:00 · 7ae091d933
commit 7ae091d933
parent 2e13c2adba
165 changed files with 849 additions and 376 deletions
--- a/m4/00gnulib.m4
+++ b/m4/00gnulib.m4
@ -1,4 +1,5 @@
-# 00gnulib.m4 serial 9
+# 00gnulib.m4
+# serial 9
 dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/__inline.m4
+++ b/m4/__inline.m4
@ -1,9 +1,12 @@
-# Test for __inline keyword
+# __inline.m4
+# serial 1
 dnl Copyright 2017-2024 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.

+# Test for __inline keyword
+
 AC_DEFUN([gl___INLINE],
 [
  AC_CACHE_CHECK([whether the compiler supports the __inline keyword],
--- a/m4/absolute-header.m4
+++ b/m4/absolute-header.m4
@ -1,4 +1,5 @@
-# absolute-header.m4 serial 18
+# absolute-header.m4
+# serial 18
 dnl Copyright (C) 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/acl.m4
+++ b/m4/acl.m4
@ -1,10 +1,11 @@
-# acl.m4 - check for access control list (ACL) primitives
+# acl.m4
 # serial 30
+dnl Copyright (C) 2002, 2004-2024 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.

-# Copyright (C) 2002, 2004-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+# Check for access control list (ACL) primitives

 # Written by Paul Eggert and Jim Meyering.

--- a/m4/alloca.m4
+++ b/m4/alloca.m4
@ -1,4 +1,5 @@
-# alloca.m4 serial 21
+# alloca.m4
+# serial 21
 dnl Copyright (C) 2002-2004, 2006-2007, 2009-2024 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/assert_h.m4
+++ b/m4/assert_h.m4
@ -1,4 +1,5 @@
-# assert-h.m4
+# assert_h.m4
+# serial 1
 dnl Copyright (C) 2011-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/builtin-expect.m4
+++ b/m4/builtin-expect.m4
@ -1,10 +1,12 @@
-dnl Check for __builtin_expect.
-
+# builtin-expect.m4
+# serial 1
 dnl Copyright 2016-2024 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.

+dnl Check for __builtin_expect.
+
 dnl Written by Paul Eggert.

 AC_DEFUN([gl___BUILTIN_EXPECT],
--- a/m4/byteswap.m4
+++ b/m4/byteswap.m4
@ -1,4 +1,5 @@
-# byteswap.m4 serial 5
+# byteswap.m4
+# serial 5
 dnl Copyright (C) 2005, 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/c-bool.m4
+++ b/m4/c-bool.m4
@ -1,10 +1,12 @@
-# Check for bool that conforms to C2023.
-
+# c-bool.m4
+# serial 1
 dnl Copyright 2022-2024 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.

+# Check for bool that conforms to C2023.
+
 AC_DEFUN([gl_C_BOOL],
 [
  AC_CACHE_CHECK([for bool, true, false], [gl_cv_c_bool],
--- a/m4/canonicalize.m4
+++ b/m4/canonicalize.m4
@ -1,4 +1,5 @@
-# canonicalize.m4 serial 39
+# canonicalize.m4
+# serial 39

 dnl Copyright (C) 2003-2007, 2009-2024 Free Software Foundation, Inc.

--- a/m4/clock_time.m4
+++ b/m4/clock_time.m4
@ -1,4 +1,5 @@
-# clock_time.m4 serial 14
+# clock_time.m4
+# serial 14
 dnl Copyright (C) 2002-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/codeset.m4
+++ b/m4/codeset.m4
@ -1,4 +1,5 @@
-# codeset.m4 serial 5 (gettext-0.18.2)
+# codeset.m4
+# serial 5 (gettext-0.18.2)
 dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016, 2019-2024 Free Software
 dnl Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/copy-file-range.m4
+++ b/m4/copy-file-range.m4
@ -1,4 +1,5 @@
-# copy-file-range.m4 serial 5
+# copy-file-range.m4
+# serial 5
 dnl Copyright 2019-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/d-type.m4
+++ b/m4/d-type.m4
@ -1,15 +1,13 @@
+# d-type.m4
 # serial 12
+dnl Copyright (C) 1997, 1999-2004, 2006, 2009-2024 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.

 dnl From Jim Meyering.
 dnl
 dnl Check whether struct dirent has a member named d_type.
-dnl
-
-# Copyright (C) 1997, 1999-2004, 2006, 2009-2024 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.

 AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE],
  [AC_CACHE_CHECK([for d_type member in directory struct],
--- a/m4/dirent_h.m4
+++ b/m4/dirent_h.m4
@ -1,4 +1,5 @@
-# dirent_h.m4 serial 22
+# dirent_h.m4
+# serial 22
 dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/dirfd.m4
+++ b/m4/dirfd.m4
@ -1,12 +1,12 @@
+# dirfd.m4
 # serial 30   -*- Autoconf -*-
+dnl Copyright (C) 2001-2006, 2008-2024 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.

 dnl Find out how to get the file descriptor associated with an open DIR*.

-# Copyright (C) 2001-2006, 2008-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
 dnl From Jim Meyering

 AC_DEFUN([gl_FUNC_DIRFD],
--- a/m4/double-slash-root.m4
+++ b/m4/double-slash-root.m4
@ -1,4 +1,5 @@
-# double-slash-root.m4 serial 4   -*- Autoconf -*-
+# double-slash-root.m4
+# serial 4   -*- Autoconf -*-
 dnl Copyright (C) 2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/dup2.m4
+++ b/m4/dup2.m4
@ -1,4 +1,5 @@
-#serial 28
+# dup2.m4
+# serial 28
 dnl Copyright (C) 2002, 2005, 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/eealloc.m4
+++ b/m4/eealloc.m4
@ -1,4 +1,5 @@
-# eealloc.m4 serial 3
+# eealloc.m4
+# serial 3
 dnl Copyright (C) 2003, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/environ.m4
+++ b/m4/environ.m4
@ -1,4 +1,5 @@
-# environ.m4 serial 8
+# environ.m4
+# serial 8
 dnl Copyright (C) 2001-2004, 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/errno_h.m4
+++ b/m4/errno_h.m4
@ -1,4 +1,5 @@
-# errno_h.m4 serial 14
+# errno_h.m4
+# serial 14
 dnl Copyright (C) 2004, 2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/euidaccess.m4
+++ b/m4/euidaccess.m4
@ -1,4 +1,5 @@
-# euidaccess.m4 serial 17
+# euidaccess.m4
+# serial 17
 dnl Copyright (C) 2002-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/execinfo.m4
+++ b/m4/execinfo.m4
@ -1,10 +1,12 @@
-# Check for GNU-style execinfo.h.
-
+# execinfo.m4
+# serial 1
 dnl Copyright 2012-2024 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.

+# Check for GNU-style execinfo.h.
+
 AC_DEFUN([gl_EXECINFO_H],
 [
  AC_CHECK_HEADERS_ONCE([execinfo.h])
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@ -1,10 +1,11 @@
-# serial 23  -*- Autoconf -*-
-# Enable extensions on systems that normally disable them.
+# extensions.m4
+# serial 25  -*- Autoconf -*-
+dnl Copyright (C) 2003, 2006-2024 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.

-# Copyright (C) 2003, 2006-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+# Enable extensions on systems that normally disable them.

 dnl Define to empty for the benefit of Autoconf 2.69 and earlier, so that
 dnl AC_USE_SYSTEM_EXTENSIONS (below) can be used unchanged from Autoconf 2.70+.
@ -229,4 +230,15 @@ AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS],
        [Define to enable the declarations of ISO C 11 types and functions.])
      ;;
  esac
+
+  dnl On OpenSolaris derivatives, the include files contains a couple of
+  dnl declarations that are only activated with an explicit
+  dnl -D__STDC_WANT_LIB_EXT1__.
+  AH_VERBATIM([USE_ISO_C_23_ANNEX_K_EXTENSIONS],
+[/* Define to enable the declarations of ISO C 23 Annex K types and functions.  */
+#if !(defined __STDC_WANT_LIB_EXT1__ && __STDC_WANT_LIB_EXT1__)
+#undef/**/__STDC_WANT_LIB_EXT1__
+#define __STDC_WANT_LIB_EXT1__ 1
+#endif
+])
 ])
--- a/m4/extern-inline.m4
+++ b/m4/extern-inline.m4
@ -1,10 +1,12 @@
-dnl 'extern inline' a la ISO C99.
-
+# extern-inline.m4
+# serial 1
 dnl Copyright 2012-2024 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.

+dnl 'extern inline' a la ISO C99.
+
 AC_DEFUN([gl_EXTERN_INLINE],
 [
  AC_CACHE_CHECK([whether ctype.h defines __header_inline],
--- a/m4/faccessat.m4
+++ b/m4/faccessat.m4
@ -1,11 +1,12 @@
+# faccessat.m4
 # serial 12
-# See if we need to provide faccessat replacement.
-
 dnl Copyright (C) 2009-2024 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.

+# See if we need to provide faccessat replacement.
+
 # Written by Eric Blake.

 AC_DEFUN([gl_FUNC_FACCESSAT],
--- a/m4/fchmodat.m4
+++ b/m4/fchmodat.m4
@ -1,4 +1,5 @@
-# fchmodat.m4 serial 8
+# fchmodat.m4
+# serial 8
 dnl Copyright (C) 2004-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/fcntl.m4
+++ b/m4/fcntl.m4
@ -1,4 +1,5 @@
-# fcntl.m4 serial 11
+# fcntl.m4
+# serial 12
 dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@ -82,7 +83,7 @@ AC_DEFUN([gl_FUNC_FCNTL],
    esac

    dnl Many systems lack F_DUPFD_CLOEXEC.
-    dnl NetBSD 9.0 declares F_DUPFD_CLOEXEC but it works only like F_DUPFD.
+    dnl NetBSD 10.0 declares F_DUPFD_CLOEXEC but it works only like F_DUPFD.
    AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC],
      [gl_cv_func_fcntl_f_dupfd_cloexec],
      [AC_RUN_IFELSE(
--- a/m4/fcntl_h.m4
+++ b/m4/fcntl_h.m4
@ -1,10 +1,12 @@
+# fcntl_h.m4
 # serial 20
-# Configure fcntl.h.
 dnl Copyright (C) 2006-2007, 2009-2024 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.

+# Configure fcntl.h.
+
 dnl Written by Paul Eggert.

 AC_DEFUN_ONCE([gl_FCNTL_H],
--- a/m4/fdopendir.m4
+++ b/m4/fdopendir.m4
@ -1,11 +1,12 @@
+# fdopendir.m4
 # serial 15
-# See if we need to provide fdopendir.
-
 dnl Copyright (C) 2009-2024 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.

+# See if we need to provide fdopendir.
+
 # Written by Eric Blake.

 AC_DEFUN([gl_FUNC_FDOPENDIR],
--- a/m4/filemode.m4
+++ b/m4/filemode.m4
@ -1,4 +1,5 @@
-# filemode.m4 serial 9
+# filemode.m4
+# serial 9
 dnl Copyright (C) 2002, 2005-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/flexmember.m4
+++ b/m4/flexmember.m4
@ -1,10 +1,11 @@
+# flexmember.m4
 # serial 5
-# Check for flexible array member support.
+dnl Copyright (C) 2006, 2009-2024 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.

-# Copyright (C) 2006, 2009-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+# Check for flexible array member support.

 # Written by Paul Eggert.

--- a/m4/fpending.m4
+++ b/m4/fpending.m4
@ -1,9 +1,9 @@
+# fpending.m4
 # serial 23
-
-# Copyright (C) 2000-2001, 2004-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+dnl Copyright (C) 2000-2001, 2004-2024 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.

 dnl From Jim Meyering
 dnl Using code from emacs, based on suggestions from Paul Eggert
--- a/m4/fpieee.m4
+++ b/m4/fpieee.m4
@ -1,4 +1,5 @@
-# fpieee.m4 serial 2  -*- coding: utf-8 -*-
+# fpieee.m4
+# serial 2  -*- coding: utf-8 -*-
 dnl Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/free.m4
+++ b/m4/free.m4
@ -1,8 +1,9 @@
-# free.m4 serial 6
-# Copyright (C) 2003-2005, 2009-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+# free.m4
+# serial 6
+dnl Copyright (C) 2003-2005, 2009-2024 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.

 # Written by Paul Eggert and Bruno Haible.

--- a/m4/fstatat.m4
+++ b/m4/fstatat.m4
@ -1,4 +1,5 @@
-# fstatat.m4 serial 5
+# fstatat.m4
+# serial 5
 dnl Copyright (C) 2004-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/fsusage.m4
+++ b/m4/fsusage.m4
@ -1,11 +1,11 @@
+# fsusage.m4
 # serial 35
-# Obtaining file system usage information.
+dnl Copyright (C) 1997-1998, 2000-2001, 2003-2024 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.

-# Copyright (C) 1997-1998, 2000-2001, 2003-2024 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+# Obtaining file system usage information.

 # Written by Jim Meyering.

--- a/m4/fsync.m4
+++ b/m4/fsync.m4
@ -1,4 +1,5 @@
-# fsync.m4 serial 2
+# fsync.m4
+# serial 2
 dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/futimens.m4
+++ b/m4/futimens.m4
@ -1,11 +1,12 @@
+# futimens.m4
 # serial 11
-# See if we need to provide futimens replacement.
-
 dnl Copyright (C) 2009-2024 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.

+# See if we need to provide futimens replacement.
+
 # Written by Eric Blake.

 AC_DEFUN([gl_FUNC_FUTIMENS],
--- a/m4/getdelim.m4
+++ b/m4/getdelim.m4
@ -1,4 +1,5 @@
-# getdelim.m4 serial 19
+# getdelim.m4
+# serial 19

 dnl Copyright (C) 2005-2007, 2009-2024 Free Software Foundation, Inc.
 dnl
--- a/m4/getdtablesize.m4
+++ b/m4/getdtablesize.m4
@ -1,4 +1,5 @@
-# getdtablesize.m4 serial 8
+# getdtablesize.m4
+# serial 8
 dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/getgroups.m4
+++ b/m4/getgroups.m4
@ -1,14 +1,13 @@
+# getgroups.m4
 # serial 25
+dnl Copyright (C) 1996-1997, 1999-2004, 2008-2024 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.

 dnl From Jim Meyering.
 dnl A wrapper around AC_FUNC_GETGROUPS.

-# Copyright (C) 1996-1997, 1999-2004, 2008-2024 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
 # This is taken from the following Autoconf patch:
 # https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
 AC_DEFUN([AC_FUNC_GETGROUPS],
--- a/m4/getline.m4
+++ b/m4/getline.m4
@ -1,4 +1,5 @@
-# getline.m4 serial 33
+# getline.m4
+# serial 33

 dnl Copyright (C) 1998-2003, 2005-2007, 2009-2024 Free Software Foundation,
 dnl Inc.
--- a/m4/getloadavg.m4
+++ b/m4/getloadavg.m4
@ -1,14 +1,13 @@
+# getloadavg.m4
+# serial 13
+dnl Copyright (C) 1992-1996, 1999-2000, 2002-2003, 2006, 2008-2024 Free Software
+dnl 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.
+
 # Check for getloadavg.

-# Copyright (C) 1992-1996, 1999-2000, 2002-2003, 2006, 2008-2024 Free Software
-# Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-#serial 13
-
 # Autoconf defines AC_FUNC_GETLOADAVG, but that is obsolescent.
 # New applications should use gl_GETLOADAVG instead.

--- a/m4/getopt.m4
+++ b/m4/getopt.m4
@ -1,4 +1,5 @@
-# getopt.m4 serial 49
+# getopt.m4
+# serial 49
 dnl Copyright (C) 2002-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/getrandom.m4
+++ b/m4/getrandom.m4
@ -1,4 +1,5 @@
-# getrandom.m4 serial 13
+# getrandom.m4
+# serial 13
 dnl Copyright 2020-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/gettime.m4
+++ b/m4/gettime.m4
@ -1,4 +1,5 @@
-# gettime.m4 serial 15
+# gettime.m4
+# serial 15
 dnl Copyright (C) 2002, 2004-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/gettimeofday.m4
+++ b/m4/gettimeofday.m4
@ -1,9 +1,9 @@
+# gettimeofday.m4
 # serial 30
-
-# Copyright (C) 2001-2003, 2005, 2007, 2009-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+dnl Copyright (C) 2001-2003, 2005, 2007, 2009-2024 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.

 dnl From Jim Meyering.

--- a/m4/gnulib-common.m4
+++ b/m4/gnulib-common.m4
@ -1,4 +1,5 @@
-# gnulib-common.m4 serial 92
+# gnulib-common.m4
+# serial 93
 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@ -504,8 +505,10 @@ AC_DEFUN([gl_COMMON_BODY], [
   minimizing the memory required.  */
 /* Applies to: struct members, struct, union,
   in C++ also: class.  */
+/* Oracle Studio 12.6 miscompiles code with __attribute__ ((__packed__)) despite
+   __has_attribute OK.  */
 #ifndef _GL_ATTRIBUTE_PACKED
-# if _GL_HAS_ATTRIBUTE (packed)
+# if _GL_HAS_ATTRIBUTE (packed) && !defined __SUNPRO_C
 #  define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__))
 # else
 #  define _GL_ATTRIBUTE_PACKED
--- a/m4/gnulib-comp.m4
+++ b/m4/gnulib-comp.m4
@ -192,6 +192,7 @@ AC_DEFUN([gl_EARLY],
  # Code from module sys_stat:
  # Code from module sys_time:
  # Code from module sys_types:
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
  # Code from module tempname:
  # Code from module time-h:
  # Code from module time_r:
@ -1538,6 +1539,7 @@ AC_DEFUN([gl_FILE_LIST], [
  m4/nocrash.m4
  m4/nproc.m4
  m4/nstrftime.m4
+  m4/off64_t.m4
  m4/off_t.m4
  m4/open-cloexec.m4
  m4/open-slash.m4
--- a/m4/group-member.m4
+++ b/m4/group-member.m4
@ -1,10 +1,9 @@
+# group-member.m4
 # serial 14
-
-# Copyright (C) 1999-2001, 2003-2007, 2009-2024 Free Software Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+dnl Copyright (C) 1999-2001, 2003-2007, 2009-2024 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.

 dnl Written by Jim Meyering

--- a/m4/ieee754-h.m4
+++ b/m4/ieee754-h.m4
@ -1,10 +1,12 @@
-# Configure ieee754-h module
-
+# ieee754-h.m4
+# serial 1
 dnl Copyright 2018-2024 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.

+# Configure ieee754-h module
+
 AC_DEFUN([gl_IEEE754_H],
 [
  AC_REQUIRE([AC_C_BIGENDIAN])
--- a/m4/include_next.m4
+++ b/m4/include_next.m4
@ -1,4 +1,5 @@
-# include_next.m4 serial 27
+# include_next.m4
+# serial 27
 dnl Copyright (C) 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/inttypes.m4
+++ b/m4/inttypes.m4
@ -1,4 +1,5 @@
-# inttypes.m4 serial 37
+# inttypes.m4
+# serial 37
 dnl Copyright (C) 2006-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/largefile.m4
+++ b/m4/largefile.m4
@ -1,11 +1,13 @@
+# largefile.m4
+# serial 1
+dnl Copyright 1992-1996, 1998-2024 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.
+
 # Enable large files on systems where this is not the default.
 # Enable support for files on Linux file systems with 64-bit inode numbers.

-# Copyright 1992-1996, 1998-2024 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
 # The following macro works around a problem in Autoconf's AC_FUNC_FSEEKO:
 # It does not set _LARGEFILE_SOURCE=1 on HP-UX/ia64 32-bit, although this
 # setting of _LARGEFILE_SOURCE is needed so that <stdio.h> declares fseeko
@ -24,9 +26,20 @@ AC_DEFUN([gl_SET_LARGEFILE_SOURCE],
 ]])
 )

+dnl Remove AC_SYS_YEAR2038_RECOMMENDED if unpatched Autoconf 2.72 or earlier.
+dnl Autoconf 2.72 still uses -n32, which is not a C preprocessor option,
+dnl and which was useful only on IRIX which is no longer supported.
+dnl This should be fixed in Autoconf 2.73.
+m4_ifdef([AC_SYS_YEAR2038_RECOMMENDED],
+  [m4_bmatch(m4_ifdef([_AC_SYS_LARGEFILE_OPTIONS],
+               [m4_defn([_AC_SYS_LARGEFILE_OPTIONS])],
+               ["-n32"]),
+     ["-n32"],
+       [m4_undefine([AC_SYS_YEAR2038_RECOMMENDED])])])
+
 m4_ifndef([AC_SYS_YEAR2038_RECOMMENDED], [
-# Support AC_SYS_YEAR2038_RECOMMENDED and related macros, even if
-# Autoconf 2.71 or earlier.  This code is taken from Autoconf master.
+# Fix up AC_SYS_YEAR2038_RECOMMENDED and related macros, even if
+# unpatched Autoconf 2.72 or earlier.  This code is taken from Autoconf master.

 # _AC_SYS_YEAR2038_TEST_CODE
 # --------------------------
@ -75,7 +88,7 @@ m4_define([_AC_SYS_YEAR2038_OPTIONS], m4_normalize(
 # If you change this macro you may also need to change
 # _AC_SYS_YEAR2038_OPTIONS.
 AC_DEFUN([_AC_SYS_YEAR2038_PROBE],
-[AC_CACHE_CHECK([for $CC option for timestamps after 2038],
+[AC_CACHE_CHECK([for $CPPFLAGS option for timestamps after 2038],
  [ac_cv_sys_year2038_opts],
  [ac_save_CPPFLAGS="$CPPFLAGS"
  ac_opt_found=no
@ -205,7 +218,6 @@ m4_define([_AC_SYS_LARGEFILE_OPTIONS], m4_normalize(
    ["none needed"]                   dnl Most current systems
    ["-D_FILE_OFFSET_BITS=64"]        dnl X/Open LFS spec
    ["-D_LARGE_FILES=1"]              dnl 32-bit AIX 4.2.1+, 32-bit z/OS
-    ["-n32"]                          dnl 32-bit IRIX 6, SGI cc (obsolete)
 ))

 # _AC_SYS_LARGEFILE_PROBE
@ -222,25 +234,25 @@ m4_define([_AC_SYS_LARGEFILE_OPTIONS], m4_normalize(
 # If you change this macro you may also need to change
 # _AC_SYS_LARGEFILE_OPTIONS.
 AC_DEFUN([_AC_SYS_LARGEFILE_PROBE],
-[AC_CACHE_CHECK([for $CC option to enable large file support],
+[AC_CACHE_CHECK([for $CPPFLAGS option for large files],
  [ac_cv_sys_largefile_opts],
-  [ac_save_CC="$CC"
+  [ac_save_CPPFLAGS=$CPPFLAGS
  ac_opt_found=no
  for ac_opt in _AC_SYS_LARGEFILE_OPTIONS; do
    AS_IF([test x"$ac_opt" != x"none needed"],
-      [CC="$ac_save_CC $ac_opt"])
+      [CPPFLAGS="$ac_save_CPPFLAGS $ac_opt"])
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_CODE])],
     [AS_IF([test x"$ac_opt" = x"none needed"],
 	[# GNU/Linux s390x and alpha need _FILE_OFFSET_BITS=64 for wide ino_t.
-	 CC="$CC -DFTYPE=ino_t"
+	 CPPFLAGS="$CPPFLAGS -DFTYPE=ino_t"
 	 AC_COMPILE_IFELSE([], [],
-	   [CC="$CC -D_FILE_OFFSET_BITS=64"
+	   [CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
 	    AC_COMPILE_IFELSE([], [ac_opt='-D_FILE_OFFSET_BITS=64'])])])
      ac_cv_sys_largefile_opts=$ac_opt
      ac_opt_found=yes])
    test $ac_opt_found = no || break
  done
-  CC="$ac_save_CC"
+  CPPFLAGS=$ac_save_CPPFLAGS
  dnl Gnulib implements large file support for native Windows, based on the
  dnl variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE.
  m4_ifdef([gl_LARGEFILE], [
@ -270,9 +282,6 @@ AS_CASE([$ac_cv_sys_largefile_opts],
    [AC_DEFINE([_LARGE_FILES], [1],
      [Define to 1 on platforms where this makes off_t a 64-bit type.])],

-  ["-n32"],
-    [CC="$CC -n32"],
-
  [AC_MSG_ERROR(
    [internal error: bad value for \$ac_cv_sys_largefile_opts])])

--- a/m4/lchmod.m4
+++ b/m4/lchmod.m4
@ -1,5 +1,5 @@
-#serial 10
-
+# lchmod.m4
+# serial 10
 dnl Copyright (C) 2005-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/libgmp.m4
+++ b/m4/libgmp.m4
@ -1,4 +1,5 @@
-# libgmp.m4 serial 8
+# libgmp.m4
+# serial 8
 # Configure the GMP library or a replacement.
 dnl Copyright 2020-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/limits-h.m4
+++ b/m4/limits-h.m4
@ -1,10 +1,12 @@
-dnl Check whether limits.h has needed features.
-
+# limits-h.m4
+# serial 1
 dnl Copyright 2016-2024 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.

+dnl Check whether limits.h has needed features.
+
 dnl From Paul Eggert.

 AC_DEFUN_ONCE([gl_LIMITS_H],
--- a/m4/lstat.m4
+++ b/m4/lstat.m4
@ -1,10 +1,9 @@
+# lstat.m4
 # serial 36
-
-# Copyright (C) 1997-2001, 2003-2024 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+dnl Copyright (C) 1997-2001, 2003-2024 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.

 dnl From Jim Meyering.

--- a/m4/malloc.m4
+++ b/m4/malloc.m4
@ -1,4 +1,5 @@
-# malloc.m4 serial 31
+# malloc.m4
+# serial 31
 dnl Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/manywarnings.m4
+++ b/m4/manywarnings.m4
@ -1,4 +1,5 @@
-# manywarnings.m4 serial 25
+# manywarnings.m4
+# serial 26
 dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@ -110,6 +111,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)],
    -Wduplicated-cond \
    -Wextra \
    -Wformat-signedness \
+    -Wflex-array-member-not-at-end \
    -Winit-self \
    -Winline \
    -Winvalid-pch \
@ -117,6 +119,7 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC(C)],
    -Wmissing-declarations \
    -Wmissing-include-dirs \
    -Wmissing-prototypes \
+    -Wmissing-variable-declarations \
    -Wnested-externs \
    -Wnull-dereference \
    -Wold-style-definition \
--- a/m4/mbstate_t.m4
+++ b/m4/mbstate_t.m4
@ -1,4 +1,5 @@
-# mbstate_t.m4 serial 14
+# mbstate_t.m4
+# serial 14
 dnl Copyright (C) 2000-2002, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/md5.m4
+++ b/m4/md5.m4
@ -1,4 +1,5 @@
-# md5.m4 serial 14
+# md5.m4
+# serial 14
 dnl Copyright (C) 2002-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/memmem.m4
+++ b/m4/memmem.m4
@ -1,4 +1,5 @@
-# memmem.m4 serial 29
+# memmem.m4
+# serial 29
 dnl Copyright (C) 2002-2004, 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/mempcpy.m4
+++ b/m4/mempcpy.m4
@ -1,4 +1,5 @@
-# mempcpy.m4 serial 14
+# mempcpy.m4
+# serial 14
 dnl Copyright (C) 2003-2004, 2006-2007, 2009-2024 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/memrchr.m4
+++ b/m4/memrchr.m4
@ -1,4 +1,5 @@
-# memrchr.m4 serial 11
+# memrchr.m4
+# serial 11
 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2024 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/memset_explicit.m4
+++ b/m4/memset_explicit.m4
@ -1,4 +1,5 @@
-# memset_explicit.m4 serial 2
+# memset_explicit.m4
+# serial 3
 dnl Copyright 2022-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@ -7,6 +8,8 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_MEMSET_EXPLICIT],
 [
  AC_REQUIRE([gl_STRING_H_DEFAULTS])
+  dnl Persuade OpenSolaris derivatives' <string.h> to declare memset_s().
+  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])

  gl_CHECK_FUNCS_ANDROID([memset_explicit], [[#include <string.h>]])
  if test $ac_cv_func_memset_explicit = no; then
--- a/m4/minmax.m4
+++ b/m4/minmax.m4
@ -1,4 +1,5 @@
-# minmax.m4 serial 4
+# minmax.m4
+# serial 4
 dnl Copyright (C) 2005, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/mkostemp.m4
+++ b/m4/mkostemp.m4
@ -1,4 +1,5 @@
-# mkostemp.m4 serial 4
+# mkostemp.m4
+# serial 4
 dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/mktime.m4
+++ b/m4/mktime.m4
@ -1,6 +1,6 @@
+# mktime.m4
 # serial 39
-dnl Copyright (C) 2002-2003, 2005-2007, 2009-2024 Free Software Foundation,
-dnl Inc.
+dnl Copyright (C) 2002-2003, 2005-2007, 2009-2024 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.
--- a/m4/mode_t.m4
+++ b/m4/mode_t.m4
@ -1,4 +1,5 @@
-# mode_t.m4 serial 2
+# mode_t.m4
+# serial 2
 dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/multiarch.m4
+++ b/m4/multiarch.m4
@ -1,4 +1,5 @@
-# multiarch.m4 serial 9
+# multiarch.m4
+# serial 9
 dnl Copyright (C) 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/musl.m4
+++ b/m4/musl.m4
@ -1,4 +1,5 @@
-# musl.m4 serial 4
+# musl.m4
+# serial 4
 dnl Copyright (C) 2019-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/nanosleep.m4
+++ b/m4/nanosleep.m4
@ -1,15 +1,13 @@
+# nanosleep.m4
 # serial 47
+dnl Copyright (C) 1999-2001, 2003-2024 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.

 dnl From Jim Meyering.
 dnl Check for the nanosleep function.
 dnl If not found, use the supplied replacement.
-dnl
-
-# Copyright (C) 1999-2001, 2003-2024 Free Software Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.

 AC_DEFUN([gl_FUNC_NANOSLEEP],
 [
--- a/m4/nocrash.m4
+++ b/m4/nocrash.m4
@ -1,4 +1,5 @@
-# nocrash.m4 serial 5
+# nocrash.m4
+# serial 5
 dnl Copyright (C) 2005, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/nproc.m4
+++ b/m4/nproc.m4
@ -1,4 +1,5 @@
-# nproc.m4 serial 6
+# nproc.m4
+# serial 6
 dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/nstrftime.m4
+++ b/m4/nstrftime.m4
@ -1,10 +1,9 @@
+# nstrftime.m4
 # serial 38
-
-# Copyright (C) 1996-1997, 1999-2007, 2009-2024 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+dnl Copyright (C) 1996-1997, 1999-2007, 2009-2024 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.

 # Written by Jim Meyering and Paul Eggert.

--- a/m4/off_t.m4
+++ b/m4/off_t.m4
@ -1,4 +1,5 @@
-# off_t.m4 serial 1
+# off_t.m4
+# serial 1
 dnl Copyright (C) 2012-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/open-cloexec.m4
+++ b/m4/open-cloexec.m4
@ -1,10 +1,12 @@
-# Test whether O_CLOEXEC is defined.
-
+# open-cloexec.m4
+# serial 1
 dnl Copyright 2017-2024 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.

+# Test whether O_CLOEXEC is defined.
+
 AC_DEFUN([gl_PREPROC_O_CLOEXEC],
 [
  AC_CACHE_CHECK([for O_CLOEXEC],
--- a/m4/open-slash.m4
+++ b/m4/open-slash.m4
@ -1,4 +1,5 @@
-# open-slash.m4 serial 2
+# open-slash.m4
+# serial 2
 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/open.m4
+++ b/m4/open.m4
@ -1,4 +1,5 @@
-# open.m4 serial 16
+# open.m4
+# serial 16
 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/pathmax.m4
+++ b/m4/pathmax.m4
@ -1,4 +1,5 @@
-# pathmax.m4 serial 11
+# pathmax.m4
+# serial 11
 dnl Copyright (C) 2002-2003, 2005-2006, 2009-2024 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/pid_t.m4
+++ b/m4/pid_t.m4
@ -1,4 +1,5 @@
-# pid_t.m4 serial 4
+# pid_t.m4
+# serial 4
 dnl Copyright (C) 2020-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/pipe2.m4
+++ b/m4/pipe2.m4
@ -1,4 +1,5 @@
-# pipe2.m4 serial 4
+# pipe2.m4
+# serial 4
 dnl Copyright (C) 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/pselect.m4
+++ b/m4/pselect.m4
@ -1,4 +1,5 @@
-# pselect.m4 serial 11
+# pselect.m4
+# serial 11
 dnl Copyright (C) 2011-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/pthread_sigmask.m4
+++ b/m4/pthread_sigmask.m4
@ -1,4 +1,5 @@
-# pthread_sigmask.m4 serial 23
+# pthread_sigmask.m4
+# serial 23
 dnl Copyright (C) 2011-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/rawmemchr.m4
+++ b/m4/rawmemchr.m4
@ -1,4 +1,5 @@
-# rawmemchr.m4 serial 3
+# rawmemchr.m4
+# serial 3
 dnl Copyright (C) 2003, 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/readlink.m4
+++ b/m4/readlink.m4
@ -1,4 +1,5 @@
-# readlink.m4 serial 17
+# readlink.m4
+# serial 17
 dnl Copyright (C) 2003, 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/readlinkat.m4
+++ b/m4/readlinkat.m4
@ -1,11 +1,12 @@
+# readlinkat.m4
 # serial 8
-# See if we need to provide readlinkat replacement.
-
 dnl Copyright (C) 2009-2024 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.

+# See if we need to provide readlinkat replacement.
+
 # Written by Eric Blake.

 AC_DEFUN([gl_FUNC_READLINKAT],
--- a/m4/readutmp.m4
+++ b/m4/readutmp.m4
@ -1,4 +1,5 @@
-# readutmp.m4 serial 31
+# readutmp.m4
+# serial 31
 dnl Copyright (C) 2002-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/realloc.m4
+++ b/m4/realloc.m4
@ -1,4 +1,5 @@
-# realloc.m4 serial 29
+# realloc.m4
+# serial 29
 dnl Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/regex.m4
+++ b/m4/regex.m4
@ -1,10 +1,9 @@
+# regex.m4
 # serial 75
-
-# Copyright (C) 1996-2001, 2003-2024 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
+dnl Copyright (C) 1996-2001, 2003-2024 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.

 dnl Initially derived from code in GNU grep.
 dnl Mostly written by Jim Meyering.
--- a/m4/sha1.m4
+++ b/m4/sha1.m4
@ -1,4 +1,5 @@
-# sha1.m4 serial 12
+# sha1.m4
+# serial 12
 dnl Copyright (C) 2002-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/sha256.m4
+++ b/m4/sha256.m4
@ -1,4 +1,5 @@
-# sha256.m4 serial 8
+# sha256.m4
+# serial 8
 dnl Copyright (C) 2005, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/sha512.m4
+++ b/m4/sha512.m4
@ -1,4 +1,5 @@
-# sha512.m4 serial 9
+# sha512.m4
+# serial 9
 dnl Copyright (C) 2005-2006, 2008-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/sig2str.m4
+++ b/m4/sig2str.m4
@ -1,3 +1,4 @@
+# sig2str.m4
 # serial 7
 dnl Copyright (C) 2002, 2005-2006, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
--- a/m4/sigdescr_np.m4
+++ b/m4/sigdescr_np.m4
@ -1,4 +1,5 @@
-# sigdescr_np.m4 serial 2
+# sigdescr_np.m4
+# serial 2
 dnl Copyright (C) 2020-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/signal_h.m4
+++ b/m4/signal_h.m4
@ -1,4 +1,5 @@
-# signal_h.m4 serial 22
+# signal_h.m4
+# serial 22
 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/socklen.m4
+++ b/m4/socklen.m4
@ -1,4 +1,5 @@
-# socklen.m4 serial 11
+# socklen.m4
+# serial 11
 dnl Copyright (C) 2005-2007, 2009-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/m4/ssize_t.m4
+++ b/m4/ssize_t.m4
@ -1,4 +1,5 @@
-# ssize_t.m4 serial 6
+# ssize_t.m4
+# serial 6
 dnl Copyright (C) 2001-2003, 2006, 2010-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
--- a/Show more
+++ b/Show more