Update from Gnulib

This incorporates mostly just copyright-year changes, plus
recent minor updates from glibc for the non-Emacs regular
expression code.

build-aux/config.guess

@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2019 Free Software Foundation, Inc.
 
-timestamp='2018-12-07'
+timestamp='2019-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by

build-aux/config.sub

@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2019 Free Software Foundation, Inc.
 
-timestamp='2018-12-16'
+timestamp='2019-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1361,7 +1361,7 @@ case $os in
 	     | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
 	     | skyos* | haiku* | rdos* | toppers* | drops* | es* \
 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
-	     | midnightbsd* | amdhsa* | unleashed*)
+	     | midnightbsd* | amdhsa* | unleashed* | emscripten*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	qnx*)

doc/misc/texinfo.tex

@@ -3,12 +3,9 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2018-09-21.20}
+\def\texinfoversion{2018-12-28.17}
 %
-% Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
-% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
-% Free Software Foundation, Inc.
+% Copyright 1985, 1986, 1988, 1990-2018 Free Software Foundation, Inc.
 %
 % This texinfo.tex file is free software: you can redistribute it and/or
 % modify it under the terms of the GNU General Public License as
@@ -244,17 +241,7 @@
 %
 \def\finalout{\overfullrule=0pt }
 
-% Do @cropmarks to get crop marks.
-%
-\newif\ifcropmarks
-\let\cropmarks = \cropmarkstrue
-%
-% Dimensions to add cropmarks at corners.
-% Added by P. A. MacKay, 12 Nov. 1986
-%
 \newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
-\newdimen\cornerlong  \cornerlong=1pc
-\newdimen\cornerthick \cornerthick=.3pt
 \newdimen\topandbottommargin \topandbottommargin=.75in
 
 % Output a mark which sets \thischapter, \thissection and \thiscolor.
@@ -328,12 +315,12 @@
 \newbox\footlinebox
 
 % \onepageout takes a vbox as an argument.
-% \shipout a vbox for a single page, adding an optional header, footer,
-% cropmarks, and footnote.  This also causes index entries for this page
-% to be written to the auxiliary files.
+% \shipout a vbox for a single page, adding an optional header, footer
+% and footnote.  This also causes index entries for this page to be written
+% to the auxiliary files.
 %
 \def\onepageout#1{%
-  \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
+  \hoffset=\normaloffset
   %
   \ifodd\pageno  \advance\hoffset by \bindingoffset
   \else \advance\hoffset by -\bindingoffset\fi
@@ -386,25 +373,6 @@
       % Do this early so pdf references go to the beginning of the page.
       \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
       %
-      \ifcropmarks \vbox to \outervsize\bgroup
-        \hsize = \outerhsize
-        \vskip-\topandbottommargin
-        \vtop to0pt{%
-          \line{\ewtop\hfil\ewtop}%
-          \nointerlineskip
-          \line{%
-            \vbox{\moveleft\cornerthick\nstop}%
-            \hfill
-            \vbox{\moveright\cornerthick\nstop}%
-          }%
-          \vss}%
-        \vskip\topandbottommargin
-        \line\bgroup
-          \hfil % center the page within the outer (page) hsize.
-          \ifodd\pageno\hskip\bindingoffset\fi
-          \vbox\bgroup
-      \fi
-      %
       \unvbox\headlinebox
       \pagebody{#1}%
       \ifdim\ht\footlinebox > 0pt
@@ -415,22 +383,6 @@
         \unvbox\footlinebox
       \fi
       %
-      \ifcropmarks
-          \egroup % end of \vbox\bgroup
-        \hfil\egroup % end of (centering) \line\bgroup
-        \vskip\topandbottommargin plus1fill minus1fill
-        \boxmaxdepth = \cornerthick
-        \vbox to0pt{\vss
-          \line{%
-            \vbox{\moveleft\cornerthick\nsbot}%
-            \hfill
-            \vbox{\moveright\cornerthick\nsbot}%
-          }%
-          \nointerlineskip
-          \line{\ewbot\hfil\ewbot}%
-        }%
-      \egroup % \vbox from first cropmarks clause
-      \fi
     }% end of \shipout\vbox
   }% end of group with \indexdummies
   \advancepageno
@@ -451,17 +403,6 @@
 \ifr@ggedbottom \kern-\dimen@ \vfil \fi}
 }
 
-% Here are the rules for the cropmarks.  Note that they are
-% offset so that the space between them is truly \outerhsize or \outervsize
-% (P. A. MacKay, 12 November, 1986)
-%
-\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
-\def\nstop{\vbox
-  {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
-\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
-\def\nsbot{\vbox
-  {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
-
 
 % Argument parsing
 

lib/alloca.in.h

 /* Memory allocation on the stack.
 
-   Copyright (C) 1995, 1999, 2001-2004, 2006-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1995, 1999, 2001-2004, 2006-2019 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

lib/binary-io.h

 /* Binary mode I/O.
-   Copyright (C) 2001, 2003, 2005, 2008-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 2001, 2003, 2005, 2008-2019 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

lib/c-ctype.h

@@ -5,8 +5,7 @@
    <ctype.h> functions' behaviour depends on the current locale set via
    setlocale.
 
-   Copyright (C) 2000-2003, 2006, 2008-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 2000-2003, 2006, 2008-2019 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

lib/c-strcasecmp.c

 /* c-strcasecmp.c -- case insensitive string comparator in C locale
-   Copyright (C) 1998-1999, 2005-2006, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1998-1999, 2005-2006, 2009-2019 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

lib/c-strncasecmp.c

 /* c-strncasecmp.c -- case insensitive string comparator in C locale
-   Copyright (C) 1998-1999, 2005-2006, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1998-1999, 2005-2006, 2009-2019 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

lib/careadlinkat.c

 /* Read symbolic links into a buffer without size limitation, relative to fd.
 
-   Copyright (C) 2001, 2003-2004, 2007, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2001, 2003-2004, 2007, 2009-2019 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

lib/cdefs.h

-/* Copyright (C) 1992-2018 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or

lib/cloexec.c

 /* cloexec.c - set or clear the close-on-exec descriptor flag
 
-   Copyright (C) 1991, 2004-2006, 2009-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 1991, 2004-2006, 2009-2019 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

lib/close-stream.c

 /* Close a stream, with nicer error checking than fclose's.
 
-   Copyright (C) 1998-2002, 2004, 2006-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 1998-2002, 2004, 2006-2019 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

lib/diffseq.h

 /* Analyze differences between two vectors.
 
-   Copyright (C) 1988-1989, 1992-1995, 2001-2004, 2006-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1988-1989, 1992-1995, 2001-2004, 2006-2019 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

lib/dosname.h

 /* File names on MS-DOS/Windows systems.
 
-   Copyright (C) 2000-2001, 2004-2006, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2000-2001, 2004-2006, 2009-2019 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

lib/dup2.c

 /* Duplicate an open file descriptor to a specified file descriptor.
 
-   Copyright (C) 1999, 2004-2007, 2009-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 1999, 2004-2007, 2009-2019 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

lib/filemode.h

 /* Make a string describing file modes.
 
-   Copyright (C) 1998-1999, 2003, 2006, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1998-1999, 2003, 2006, 2009-2019 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

lib/fpending.c

 /* fpending.c -- return the number of pending output bytes on a stream
-   Copyright (C) 2000, 2004, 2006-2007, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2000, 2004, 2006-2007, 2009-2019 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

lib/fpending.h

 /* Declare __fpending.
 
-   Copyright (C) 2000, 2003, 2005-2006, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2000, 2003, 2005-2006, 2009-2019 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

lib/fsusage.c

 /* fsusage.c -- return space usage of mounted file systems
 
-   Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009-2018 Free Software
+   Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009-2019 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify

lib/fsusage.h

 /* fsusage.h -- declarations for file system space usage info
 
-   Copyright (C) 1991-1992, 1997, 2003-2006, 2009-2018 Free Software
+   Copyright (C) 1991-1992, 1997, 2003-2006, 2009-2019 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify

lib/getgroups.c

 /* provide consistent interface to getgroups for systems that don't allow N==0
 
-   Copyright (C) 1996, 1999, 2003, 2006-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 1996, 1999, 2003, 2006-2019 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

lib/getloadavg.c

 /* Get the system load averages.
 
-   Copyright (C) 1985-1989, 1991-1995, 1997, 1999-2000, 2003-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1985-1989, 1991-1995, 1997, 1999-2000, 2003-2019 Free Software
+   Foundation, Inc.
 
    NOTE: The canonical source of this file is maintained with gnulib.
    Bugs can be reported to bug-gnulib@gnu.org.

lib/gettext.h

 /* Convenience header for conditional use of GNU <libintl.h>.
-   Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2019 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

lib/gettime.c

 /* gettime -- get the system clock
 
-   Copyright (C) 2002, 2004-2007, 2009-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004-2007, 2009-2019 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

lib/gettimeofday.c

 /* Provide gettimeofday for systems that don't have it or for which it's broken.
 
-   Copyright (C) 2001-2003, 2005-2007, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2001-2003, 2005-2007, 2009-2019 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

lib/gnulib.mk.in

 ## DO NOT EDIT! GENERATED AUTOMATICALLY!
-# Copyright (C) 2002-2018 Free Software Foundation, Inc.
+# Copyright (C) 2002-2019 Free Software Foundation, Inc.
 #
 # This file is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

lib/group-member.c

 /* group-member.c -- determine whether group id is in calling user's group list
 
-   Copyright (C) 1994, 1997-1998, 2003, 2005-2006, 2009-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1994, 1997-1998, 2003, 2005-2006, 2009-2019 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

lib/ieee754.in.h

-/* Copyright (C) 1992-2018 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or

lib/libc-config.h

 /* System definitions for code taken from the GNU C Library
 
-   Copyright 2017-2018 Free Software Foundation, Inc.
+   Copyright 2017-2019 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

lib/localtime-buffer.c

 /* Provide access to the last buffer returned by localtime() or gmtime().
 
-   Copyright (C) 2001-2003, 2005-2007, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2001-2003, 2005-2007, 2009-2019 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

lib/localtime-buffer.h

 /* Provide access to the last buffer returned by localtime() or gmtime().
 
-   Copyright (C) 2001-2003, 2005-2007, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2001-2003, 2005-2007, 2009-2019 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

lib/md5.c

 /* Functions to compute MD5 message digest of files or memory blocks.
    according to the definition of MD5 in RFC 1321 from April 1992.
-   Copyright (C) 1995-1997, 1999-2001, 2005-2006, 2008-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1995-1997, 1999-2001, 2005-2006, 2008-2019 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software; you can redistribute it and/or modify it

lib/md5.h

 /* Declaration of functions and data types used for MD5 sum computing
    library functions.
-   Copyright (C) 1995-1997, 1999-2001, 2004-2006, 2008-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1995-1997, 1999-2001, 2004-2006, 2008-2019 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software; you can redistribute it and/or modify it

lib/memrchr.c

 /* memrchr -- find the last occurrence of a byte in a memory block
 
-   Copyright (C) 1991, 1993, 1996-1997, 1999-2000, 2003-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1991, 1993, 1996-1997, 1999-2000, 2003-2019 Free Software
+   Foundation, Inc.
 
    Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se) and

lib/regcomp.c

 /* Extended regular expression matching and search library.
-   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 

lib/regex.c

 /* Extended regular expression matching and search library.
-   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 

lib/regex.h

 /* Definitions for data structures and routines for the regular
    expression library.
-   Copyright (C) 1985, 1989-2018 Free Software Foundation, Inc.
+   Copyright (C) 1985, 1989-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or

lib/regex_internal.c

 /* Extended regular expression matching and search library.
-   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 

lib/regex_internal.h

 /* Extended regular expression matching and search library.
-   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 
@@ -146,10 +146,6 @@
 # define __regfree regfree
 #endif /* not _LIBC */
 
-#if !__GNUC_PREREQ (3, 1)
-# define __attribute__(arg)
-#endif
-
 #ifndef SSIZE_MAX
 # define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
 #endif
@@ -867,14 +863,6 @@ re_string_elem_size_at (const re_string_t *pstr, Idx idx)
 }
 #endif /* RE_ENABLE_I18N */
 
-#if __GNUC_PREREQ (3,4)
-# undef __attribute_warn_unused_result__
-# define __attribute_warn_unused_result__ \
-   __attribute__ ((__warn_unused_result__))
-#else
-# define __attribute_warn_unused_result__ /* empty */
-#endif
-
 #ifndef FALLTHROUGH
 # if __GNUC__ < 7
 #  define FALLTHROUGH ((void) 0)

lib/regexec.c

 /* Extended regular expression matching and search library.
-   Copyright (C) 2002-2018 Free Software Foundation, Inc.
+   Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 

lib/sha1.c

 /* sha1.c - Functions to compute SHA1 message digest of files or
    memory blocks according to the NIST specification FIPS-180-1.
 
-   Copyright (C) 2000-2001, 2003-2006, 2008-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 2000-2001, 2003-2006, 2008-2019 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 the

lib/sig2str.c

 /* sig2str.c -- convert between signal names and numbers
 
-   Copyright (C) 2002, 2004, 2006, 2009-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 2002, 2004, 2006, 2009-2019 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

lib/stdlib.in.h

 /* A GNU-like <stdlib.h>.
 
-   Copyright (C) 1995, 2001-2004, 2006-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 1995, 2001-2004, 2006-2019 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

lib/strtoimax.c

 /* Convert string representation of a number into an intmax_t value.
 
-   Copyright (C) 1999, 2001-2004, 2006, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1999, 2001-2004, 2006, 2009-2019 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

lib/strtol.c

 /* Convert string representation of a number into an integer value.
 
-   Copyright (C) 1991-1992, 1994-1999, 2003, 2005-2007, 2009-2019 Free
-   Software Foundation, Inc.
+   Copyright (C) 1991-1992, 1994-1999, 2003, 2005-2007, 2009-2019 Free Software
+   Foundation, Inc.
 
    NOTE: The canonical source of this file is maintained with the GNU C
    Library.  Bugs can be reported to bug-glibc@gnu.org.

lib/strtoll.c

 /* Function to parse a 'long long int' from text.
-   Copyright (C) 1995-1997, 1999, 2001, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1995-1997, 1999, 2001, 2009-2019 Free Software Foundation,
+   Inc.
    This file is part of the GNU C Library.
 
    This program is free software: you can redistribute it and/or modify

lib/tempname.c

 /* tempname.c - generate the name of a temporary file.
 
-   Copyright (C) 1991-2003, 2005-2007, 2009-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1991-2003, 2005-2007, 2009-2019 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

lib/time_r.c

 /* Reentrant time functions like localtime_r.
 
-   Copyright (C) 2003, 2006-2007, 2010-2019 Free Software Foundation,
-   Inc.
+   Copyright (C) 2003, 2006-2007, 2010-2019 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

lib/timegm.c

 /* Convert UTC calendar time to simple time.  Like mktime but assumes UTC.
 
-   Copyright (C) 1994-2018 Free Software Foundation, Inc.
+   Copyright (C) 1994-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or

lib/xalloc-oversized.h

 /* xalloc-oversized.h -- memory allocation size checking
 
-   Copyright (C) 1990-2000, 2003-2004, 2006-2019 Free Software
-   Foundation, Inc.
+   Copyright (C) 1990-2000, 2003-2004, 2006-2019 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

m4/__inline.m4

 # Test for __inline keyword
-dnl Copyright 2017-2018 Free Software Foundation, Inc.
+dnl Copyright 2017-2019 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.

m4/alloca.m4

 # alloca.m4 serial 14
-dnl Copyright (C) 2002-2004, 2006-2007, 2009-2019 Free Software
-dnl Foundation, Inc.
+dnl Copyright (C) 2002-2004, 2006-2007, 2009-2019 Free Software Foundation,
+dnl 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.

m4/builtin-expect.m4

 dnl Check for __builtin_expect.
 
-dnl Copyright 2016-2018 Free Software Foundation, Inc.
+dnl Copyright 2016-2019 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.

m4/d-type.m4

@@ -5,8 +5,7 @@ dnl
 dnl Check whether struct dirent has a member named d_type.
 dnl
 
-# Copyright (C) 1997, 1999-2004, 2006, 2009-2019 Free Software
-# Foundation, Inc.
+# Copyright (C) 1997, 1999-2004, 2006, 2009-2019 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation