Update upstream source from tag 'upstream/0.9.8'

Update to upstream version '0.9.8'
with Debian dir bac53b09be895fe7915b59f95882628bcc7b606e

151 files changed, 312 insertions, 304 deletions

diff --git a/lib/unistr/u-cmp2.h b/lib/unistr/u-cmp2.h
index 18dda282..e5dba298 100644
--- a/lib/unistr/u-cmp2.h
+++ b/lib/unistr/u-cmp2.h
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-8/UTF-16/UTF-32 strings.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 int
 FUNC (const UNIT *s1, size_t n1, const UNIT *s2, size_t n2)
diff --git a/lib/unistr/u-cpy-alloc.h b/lib/unistr/u-cpy-alloc.h
index 00f8e10c..9d04f5e5 100644
--- a/lib/unistr/u-cpy-alloc.h
+++ b/lib/unistr/u-cpy-alloc.h
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/lib/unistr/u-cpy.h b/lib/unistr/u-cpy.h
index 1ae9ebf5..93b8aff7 100644
--- a/lib/unistr/u-cpy.h
+++ b/lib/unistr/u-cpy.h
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <string.h>
 
diff --git a/lib/unistr/u-endswith.h b/lib/unistr/u-endswith.h
index 58233439..9ceb2db5 100644
--- a/lib/unistr/u-endswith.h
+++ b/lib/unistr/u-endswith.h
@@ -1,5 +1,5 @@
 /* Substring test for UTF-8/UTF-16/UTF-32 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 bool
 FUNC (const UNIT *str, const UNIT *suffix)
diff --git a/lib/unistr/u-move.h b/lib/unistr/u-move.h
index 963c230a..369bdd27 100644
--- a/lib/unistr/u-move.h
+++ b/lib/unistr/u-move.h
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <string.h>
 
diff --git a/lib/unistr/u-set.h b/lib/unistr/u-set.h
index fc6cd411..e07e8176 100644
--- a/lib/unistr/u-set.h
+++ b/lib/unistr/u-set.h
@@ -1,5 +1,5 @@
 /* Fill UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <errno.h>
 
diff --git a/lib/unistr/u-startswith.h b/lib/unistr/u-startswith.h
index 0375d7e2..c665620f 100644
--- a/lib/unistr/u-startswith.h
+++ b/lib/unistr/u-startswith.h
@@ -1,5 +1,5 @@
 /* Substring test for UTF-8/UTF-16/UTF-32 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 bool
 FUNC (const UNIT *str, const UNIT *prefix)
diff --git a/lib/unistr/u-stpcpy.h b/lib/unistr/u-stpcpy.h
index c3073b1a..f1dfeeb4 100644
--- a/lib/unistr/u-stpcpy.h
+++ b/lib/unistr/u-stpcpy.h
@@ -1,5 +1,5 @@
 /* Copy UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *dest, const UNIT *src)
diff --git a/lib/unistr/u-stpncpy.h b/lib/unistr/u-stpncpy.h
index 8d9e9458..63506256 100644
--- a/lib/unistr/u-stpncpy.h
+++ b/lib/unistr/u-stpncpy.h
@@ -1,5 +1,5 @@
 /* Copy UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *dest, const UNIT *src, size_t n)
diff --git a/lib/unistr/u-strcat.h b/lib/unistr/u-strcat.h
index 73dc231e..bbe903de 100644
--- a/lib/unistr/u-strcat.h
+++ b/lib/unistr/u-strcat.h
@@ -1,5 +1,5 @@
 /* Concatenate UTF-8/UTF-16/UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *dest, const UNIT *src)
diff --git a/lib/unistr/u-strcoll.h b/lib/unistr/u-strcoll.h
index 3bfbe56c..7af5b282 100644
--- a/lib/unistr/u-strcoll.h
+++ b/lib/unistr/u-strcoll.h
@@ -1,6 +1,6 @@
 /* Compare UTF-8/UTF-16/UTF-32 strings using the collation rules of the current
    locale.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 int
 FUNC (const UNIT *s1, const UNIT *s2)
diff --git a/lib/unistr/u-strcpy.h b/lib/unistr/u-strcpy.h
index b9443362..0796e4ee 100644
--- a/lib/unistr/u-strcpy.h
+++ b/lib/unistr/u-strcpy.h
@@ -1,5 +1,5 @@
 /* Copy UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *dest, const UNIT *src)
diff --git a/lib/unistr/u-strcspn.h b/lib/unistr/u-strcspn.h
index 2fc7bad5..2ec098f0 100644
--- a/lib/unistr/u-strcspn.h
+++ b/lib/unistr/u-strcspn.h
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 size_t
 FUNC (const UNIT *str, const UNIT *reject)
diff --git a/lib/unistr/u-strdup.h b/lib/unistr/u-strdup.h
index a4425f44..62305353 100644
--- a/lib/unistr/u-strdup.h
+++ b/lib/unistr/u-strdup.h
@@ -1,5 +1,5 @@
 /* Copy UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/lib/unistr/u-strlen.h b/lib/unistr/u-strlen.h
index 9710590f..05690d02 100644
--- a/lib/unistr/u-strlen.h
+++ b/lib/unistr/u-strlen.h
@@ -1,5 +1,5 @@
 /* Determine length of UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 size_t
 FUNC (const UNIT *s)
diff --git a/lib/unistr/u-strncat.h b/lib/unistr/u-strncat.h
index ae0fd933..e7ce2529 100644
--- a/lib/unistr/u-strncat.h
+++ b/lib/unistr/u-strncat.h
@@ -1,5 +1,5 @@
 /* Concatenate UTF-8/UTF-16/UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *dest, const UNIT *src, size_t n)
diff --git a/lib/unistr/u-strncpy.h b/lib/unistr/u-strncpy.h
index e731aa29..9e036b1b 100644
--- a/lib/unistr/u-strncpy.h
+++ b/lib/unistr/u-strncpy.h
@@ -1,5 +1,5 @@
 /* Copy UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *dest, const UNIT *src, size_t n)
diff --git a/lib/unistr/u-strnlen.h b/lib/unistr/u-strnlen.h
index 4f9c8b63..58df5e1c 100644
--- a/lib/unistr/u-strnlen.h
+++ b/lib/unistr/u-strnlen.h
@@ -1,5 +1,5 @@
 /* Determine bounded length of UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 size_t
 FUNC (const UNIT *s, size_t maxlen)
diff --git a/lib/unistr/u-strpbrk.h b/lib/unistr/u-strpbrk.h
index 4df5b57c..f956eb9c 100644
--- a/lib/unistr/u-strpbrk.h
+++ b/lib/unistr/u-strpbrk.h
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (const UNIT *str, const UNIT *accept)
diff --git a/lib/unistr/u-strspn.h b/lib/unistr/u-strspn.h
index 9dccbdf4..40a76bda 100644
--- a/lib/unistr/u-strspn.h
+++ b/lib/unistr/u-strspn.h
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 size_t
 FUNC (const UNIT *str, const UNIT *accept)
diff --git a/lib/unistr/u-strstr.h b/lib/unistr/u-strstr.h
index b4e7e3cc..a7581a8f 100644
--- a/lib/unistr/u-strstr.h
+++ b/lib/unistr/u-strstr.h
@@ -1,5 +1,5 @@
 /* Substring test for UTF-8/UTF-16/UTF-32 strings.  -*- coding: utf-8 -*-
-   Copyright (C) 1999, 2002, 2006, 2010-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2010-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002, 2005.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (const UNIT *haystack, const UNIT *needle)
diff --git a/lib/unistr/u-strtok.h b/lib/unistr/u-strtok.h
index 899ac764..ff070110 100644
--- a/lib/unistr/u-strtok.h
+++ b/lib/unistr/u-strtok.h
@@ -1,5 +1,5 @@
 /* Tokenize UTF-8/UTF-16/UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (UNIT *str, const UNIT *delim, UNIT **ptr)
diff --git a/lib/unistr/u16-check.c b/lib/unistr/u16-check.c
index 8a13c013..9295746c 100644
--- a/lib/unistr/u16-check.c
+++ b/lib/unistr/u16-check.c
@@ -1,5 +1,5 @@
 /* Check UTF-16 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-chr.c b/lib/unistr/u16-chr.c
index d000db00..b34a5198 100644
--- a/lib/unistr/u16-chr.c
+++ b/lib/unistr/u16-chr.c
@@ -1,5 +1,5 @@
 /* Search character in piece of UTF-16 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-cmp.c b/lib/unistr/u16-cmp.c
index b4a670a9..29f0bdf0 100644
--- a/lib/unistr/u16-cmp.c
+++ b/lib/unistr/u16-cmp.c
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-16 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-cmp2.c b/lib/unistr/u16-cmp2.c
index 3a4152be..f5daa024 100644
--- a/lib/unistr/u16-cmp2.c
+++ b/lib/unistr/u16-cmp2.c
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-16 strings.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-cpy-alloc.c b/lib/unistr/u16-cpy-alloc.c
index 53295cee..b4b991d2 100644
--- a/lib/unistr/u16-cpy-alloc.c
+++ b/lib/unistr/u16-cpy-alloc.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-cpy.c b/lib/unistr/u16-cpy.c
index 05321d94..e52acb3e 100644
--- a/lib/unistr/u16-cpy.c
+++ b/lib/unistr/u16-cpy.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-endswith.c b/lib/unistr/u16-endswith.c
index 8b1182c0..b3aefd3e 100644
--- a/lib/unistr/u16-endswith.c
+++ b/lib/unistr/u16-endswith.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-16 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mblen.c b/lib/unistr/u16-mblen.c
index 5a1cfb26..cdc10435 100644
--- a/lib/unistr/u16-mblen.c
+++ b/lib/unistr/u16-mblen.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-16 string.
-   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software
+   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2017 Free Software
    Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mbsnlen.c b/lib/unistr/u16-mbsnlen.c
index 13d0ba9c..63daf4a5 100644
--- a/lib/unistr/u16-mbsnlen.c
+++ b/lib/unistr/u16-mbsnlen.c
@@ -1,5 +1,5 @@
 /* Count characters in UTF-16 string.
-   Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2007.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mbtouc-aux.c b/lib/unistr/u16-mbtouc-aux.c
index 87100e4d..796772dc 100644
--- a/lib/unistr/u16-mbtouc-aux.c
+++ b/lib/unistr/u16-mbtouc-aux.c
@@ -1,5 +1,5 @@
 /* Conversion UTF-16 to UCS-4.
-   Copyright (C) 2001-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2001-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mbtouc-unsafe-aux.c b/lib/unistr/u16-mbtouc-unsafe-aux.c
index 3282f8d0..529774ad 100644
--- a/lib/unistr/u16-mbtouc-unsafe-aux.c
+++ b/lib/unistr/u16-mbtouc-unsafe-aux.c
@@ -1,5 +1,5 @@
 /* Conversion UTF-16 to UCS-4.
-   Copyright (C) 2001-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2001-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mbtouc-unsafe.c b/lib/unistr/u16-mbtouc-unsafe.c
index a5252567..ba4a9494 100644
--- a/lib/unistr/u16-mbtouc-unsafe.c
+++ b/lib/unistr/u16-mbtouc-unsafe.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-16 string.
-   Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mbtouc.c b/lib/unistr/u16-mbtouc.c
index 643d6231..2fb2f1fe 100644
--- a/lib/unistr/u16-mbtouc.c
+++ b/lib/unistr/u16-mbtouc.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-16 string.
-   Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-mbtoucr.c b/lib/unistr/u16-mbtoucr.c
index 062d69ca..59d0ae38 100644
--- a/lib/unistr/u16-mbtoucr.c
+++ b/lib/unistr/u16-mbtoucr.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-16 string, returning an error code.
-   Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-move.c b/lib/unistr/u16-move.c
index 8492a232..7ccfefb1 100644
--- a/lib/unistr/u16-move.c
+++ b/lib/unistr/u16-move.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-next.c b/lib/unistr/u16-next.c
index ee413711..af26043c 100644
--- a/lib/unistr/u16-next.c
+++ b/lib/unistr/u16-next.c
@@ -1,5 +1,5 @@
 /* Iterate over next character in UTF-16 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-prev.c b/lib/unistr/u16-prev.c
index dc995c67..145fae3a 100644
--- a/lib/unistr/u16-prev.c
+++ b/lib/unistr/u16-prev.c
@@ -1,5 +1,5 @@
 /* Iterate over previous character in UTF-16 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-set.c b/lib/unistr/u16-set.c
index 9af9cfe6..fb49e5a3 100644
--- a/lib/unistr/u16-set.c
+++ b/lib/unistr/u16-set.c
@@ -1,5 +1,5 @@
 /* Fill UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-startswith.c b/lib/unistr/u16-startswith.c
index e450397d..da4f8526 100644
--- a/lib/unistr/u16-startswith.c
+++ b/lib/unistr/u16-startswith.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-16 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-stpcpy.c b/lib/unistr/u16-stpcpy.c
index ad876753..5bc196cb 100644
--- a/lib/unistr/u16-stpcpy.c
+++ b/lib/unistr/u16-stpcpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-16 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-stpncpy.c b/lib/unistr/u16-stpncpy.c
index c7c583ef..b820adcf 100644
--- a/lib/unistr/u16-stpncpy.c
+++ b/lib/unistr/u16-stpncpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strcat.c b/lib/unistr/u16-strcat.c
index 2d1e252c..22cca1a1 100644
--- a/lib/unistr/u16-strcat.c
+++ b/lib/unistr/u16-strcat.c
@@ -1,5 +1,5 @@
 /* Concatenate UTF-16 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strchr.c b/lib/unistr/u16-strchr.c
index 85680025..add50a16 100644
--- a/lib/unistr/u16-strchr.c
+++ b/lib/unistr/u16-strchr.c
@@ -1,5 +1,5 @@
 /* Search character in UTF-16 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strcmp.c b/lib/unistr/u16-strcmp.c
index 324d56db..28d7a937 100644
--- a/lib/unistr/u16-strcmp.c
+++ b/lib/unistr/u16-strcmp.c
@@ -1,5 +1,5 @@
 /* Compare UTF-16 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strcoll.c b/lib/unistr/u16-strcoll.c
index 590d6109..c8739f46 100644
--- a/lib/unistr/u16-strcoll.c
+++ b/lib/unistr/u16-strcoll.c
@@ -1,5 +1,5 @@
 /* Compare UTF-16 strings using the collation rules of the current locale.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strcpy.c b/lib/unistr/u16-strcpy.c
index 31321be5..c76c2952 100644
--- a/lib/unistr/u16-strcpy.c
+++ b/lib/unistr/u16-strcpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strcspn.c b/lib/unistr/u16-strcspn.c
index d52b005f..47d879f3 100644
--- a/lib/unistr/u16-strcspn.c
+++ b/lib/unistr/u16-strcspn.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strdup.c b/lib/unistr/u16-strdup.c
index c8df8f6a..0ecc5a13 100644
--- a/lib/unistr/u16-strdup.c
+++ b/lib/unistr/u16-strdup.c
@@ -1,5 +1,5 @@
 /* Copy UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strlen.c b/lib/unistr/u16-strlen.c
index 5148dc22..db98b271 100644
--- a/lib/unistr/u16-strlen.c
+++ b/lib/unistr/u16-strlen.c
@@ -1,5 +1,5 @@
 /* Determine length of UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strmblen.c b/lib/unistr/u16-strmblen.c
index 5013abf9..40706703 100644
--- a/lib/unistr/u16-strmblen.c
+++ b/lib/unistr/u16-strmblen.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-16 string.
-   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software
+   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2017 Free Software
    Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strmbtouc.c b/lib/unistr/u16-strmbtouc.c
index 82f59c3f..ff1786e7 100644
--- a/lib/unistr/u16-strmbtouc.c
+++ b/lib/unistr/u16-strmbtouc.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-16 string.
-   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software
+   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2017 Free Software
    Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strncat.c b/lib/unistr/u16-strncat.c
index e2352076..00078af2 100644
--- a/lib/unistr/u16-strncat.c
+++ b/lib/unistr/u16-strncat.c
@@ -1,5 +1,5 @@
 /* Concatenate UTF-16 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strncmp.c b/lib/unistr/u16-strncmp.c
index 0c782e5a..a6229209 100644
--- a/lib/unistr/u16-strncmp.c
+++ b/lib/unistr/u16-strncmp.c
@@ -1,5 +1,5 @@
 /* Compare UTF-16 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strncpy.c b/lib/unistr/u16-strncpy.c
index 9c350bfb..a84a22a2 100644
--- a/lib/unistr/u16-strncpy.c
+++ b/lib/unistr/u16-strncpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strnlen.c b/lib/unistr/u16-strnlen.c
index 91dfbf74..d03d6ae7 100644
--- a/lib/unistr/u16-strnlen.c
+++ b/lib/unistr/u16-strnlen.c
@@ -1,5 +1,5 @@
 /* Determine bounded length of UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strpbrk.c b/lib/unistr/u16-strpbrk.c
index 1739a2c7..c9b4f2ed 100644
--- a/lib/unistr/u16-strpbrk.c
+++ b/lib/unistr/u16-strpbrk.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strrchr.c b/lib/unistr/u16-strrchr.c
index d1cca433..7919b96a 100644
--- a/lib/unistr/u16-strrchr.c
+++ b/lib/unistr/u16-strrchr.c
@@ -1,5 +1,5 @@
 /* Search character in UTF-16 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strspn.c b/lib/unistr/u16-strspn.c
index 78b60c07..f218c849 100644
--- a/lib/unistr/u16-strspn.c
+++ b/lib/unistr/u16-strspn.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strstr.c b/lib/unistr/u16-strstr.c
index fe0f1bd6..5d814e7a 100644
--- a/lib/unistr/u16-strstr.c
+++ b/lib/unistr/u16-strstr.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-16 strings.
-   Copyright (C) 1999, 2002, 2006, 2010-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2010-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-strtok.c b/lib/unistr/u16-strtok.c
index 17c36da6..756c7147 100644
--- a/lib/unistr/u16-strtok.c
+++ b/lib/unistr/u16-strtok.c
@@ -1,5 +1,5 @@
 /* Tokenize UTF-16 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-to-u32.c b/lib/unistr/u16-to-u32.c
index 3196dc28..85e7c0fe 100644
--- a/lib/unistr/u16-to-u32.c
+++ b/lib/unistr/u16-to-u32.c
@@ -1,5 +1,5 @@
 /* Convert UTF-16 string to UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-to-u8.c b/lib/unistr/u16-to-u8.c
index 3cf5e1cb..554fcbbd 100644
--- a/lib/unistr/u16-to-u8.c
+++ b/lib/unistr/u16-to-u8.c
@@ -1,5 +1,5 @@
 /* Convert UTF-16 string to UTF-8 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-uctomb-aux.c b/lib/unistr/u16-uctomb-aux.c
index d3889b44..a6e03b07 100644
--- a/lib/unistr/u16-uctomb-aux.c
+++ b/lib/unistr/u16-uctomb-aux.c
@@ -1,5 +1,5 @@
 /* Conversion UCS-4 to UTF-16.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u16-uctomb.c b/lib/unistr/u16-uctomb.c
index 58484d02..f5c96292 100644
--- a/lib/unistr/u16-uctomb.c
+++ b/lib/unistr/u16-uctomb.c
@@ -1,5 +1,5 @@
 /* Store a character in UTF-16 string.
-   Copyright (C) 2002, 2005-2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005-2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-check.c b/lib/unistr/u32-check.c
index 3d174d7b..700f76a2 100644
--- a/lib/unistr/u32-check.c
+++ b/lib/unistr/u32-check.c
@@ -1,5 +1,5 @@
 /* Check UTF-32 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-chr.c b/lib/unistr/u32-chr.c
index 35c8570b..90217d16 100644
--- a/lib/unistr/u32-chr.c
+++ b/lib/unistr/u32-chr.c
@@ -1,5 +1,5 @@
 /* Search character in piece of UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-cmp.c b/lib/unistr/u32-cmp.c
index a4e69fda..8ffd25ee 100644
--- a/lib/unistr/u32-cmp.c
+++ b/lib/unistr/u32-cmp.c
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-cmp2.c b/lib/unistr/u32-cmp2.c
index f970c4da..a2fdc289 100644
--- a/lib/unistr/u32-cmp2.c
+++ b/lib/unistr/u32-cmp2.c
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-32 strings.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-cpy-alloc.c b/lib/unistr/u32-cpy-alloc.c
index 75450fc3..eedf53c4 100644
--- a/lib/unistr/u32-cpy-alloc.c
+++ b/lib/unistr/u32-cpy-alloc.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-cpy.c b/lib/unistr/u32-cpy.c
index 4cb71ed6..58ed0a9a 100644
--- a/lib/unistr/u32-cpy.c
+++ b/lib/unistr/u32-cpy.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-endswith.c b/lib/unistr/u32-endswith.c
index 2bf2e6a6..c7cc8742 100644
--- a/lib/unistr/u32-endswith.c
+++ b/lib/unistr/u32-endswith.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-32 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-mblen.c b/lib/unistr/u32-mblen.c
index af28d649..8d091edd 100644
--- a/lib/unistr/u32-mblen.c
+++ b/lib/unistr/u32-mblen.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-mbsnlen.c b/lib/unistr/u32-mbsnlen.c
index 34103be3..a6c816ad 100644
--- a/lib/unistr/u32-mbsnlen.c
+++ b/lib/unistr/u32-mbsnlen.c
@@ -1,5 +1,5 @@
 /* Count characters in UTF-32 string.
-   Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2007.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-mbtouc-unsafe.c b/lib/unistr/u32-mbtouc-unsafe.c
index bb0a13e9..46d503ff 100644
--- a/lib/unistr/u32-mbtouc-unsafe.c
+++ b/lib/unistr/u32-mbtouc-unsafe.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-mbtouc.c b/lib/unistr/u32-mbtouc.c
index 68540988..b0e0656b 100644
--- a/lib/unistr/u32-mbtouc.c
+++ b/lib/unistr/u32-mbtouc.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-mbtoucr.c b/lib/unistr/u32-mbtoucr.c
index 7b0e8094..a5835314 100644
--- a/lib/unistr/u32-mbtoucr.c
+++ b/lib/unistr/u32-mbtoucr.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-32 string, returning an error code.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-move.c b/lib/unistr/u32-move.c
index 89f781be..d71f02f8 100644
--- a/lib/unistr/u32-move.c
+++ b/lib/unistr/u32-move.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-next.c b/lib/unistr/u32-next.c
index 770e90ef..af5a8d39 100644
--- a/lib/unistr/u32-next.c
+++ b/lib/unistr/u32-next.c
@@ -1,5 +1,5 @@
 /* Iterate over next character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-prev.c b/lib/unistr/u32-prev.c
index 401d3cb5..421c222c 100644
--- a/lib/unistr/u32-prev.c
+++ b/lib/unistr/u32-prev.c
@@ -1,5 +1,5 @@
 /* Iterate over previous character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-set.c b/lib/unistr/u32-set.c
index 0ad6cb2f..3fa01e86 100644
--- a/lib/unistr/u32-set.c
+++ b/lib/unistr/u32-set.c
@@ -1,5 +1,5 @@
 /* Fill UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-startswith.c b/lib/unistr/u32-startswith.c
index 134acdb6..9b5a8420 100644
--- a/lib/unistr/u32-startswith.c
+++ b/lib/unistr/u32-startswith.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-32 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-stpcpy.c b/lib/unistr/u32-stpcpy.c
index dffe8bb7..70d28365 100644
--- a/lib/unistr/u32-stpcpy.c
+++ b/lib/unistr/u32-stpcpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-stpncpy.c b/lib/unistr/u32-stpncpy.c
index 64402678..f9b57cf7 100644
--- a/lib/unistr/u32-stpncpy.c
+++ b/lib/unistr/u32-stpncpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strcat.c b/lib/unistr/u32-strcat.c
index f9306959..747b0b83 100644
--- a/lib/unistr/u32-strcat.c
+++ b/lib/unistr/u32-strcat.c
@@ -1,5 +1,5 @@
 /* Concatenate UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strchr.c b/lib/unistr/u32-strchr.c
index a4198424..835a8b3c 100644
--- a/lib/unistr/u32-strchr.c
+++ b/lib/unistr/u32-strchr.c
@@ -1,5 +1,5 @@
 /* Search character in UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strcmp.c b/lib/unistr/u32-strcmp.c
index cb96d942..be58e92f 100644
--- a/lib/unistr/u32-strcmp.c
+++ b/lib/unistr/u32-strcmp.c
@@ -1,5 +1,5 @@
 /* Compare UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strcoll.c b/lib/unistr/u32-strcoll.c
index 45e66f64..48c18239 100644
--- a/lib/unistr/u32-strcoll.c
+++ b/lib/unistr/u32-strcoll.c
@@ -1,5 +1,5 @@
 /* Compare UTF-32 strings using the collation rules of the current locale.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strcpy.c b/lib/unistr/u32-strcpy.c
index 8872f2ea..c3ad3497 100644
--- a/lib/unistr/u32-strcpy.c
+++ b/lib/unistr/u32-strcpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strcspn.c b/lib/unistr/u32-strcspn.c
index 13a27a91..507e1c41 100644
--- a/lib/unistr/u32-strcspn.c
+++ b/lib/unistr/u32-strcspn.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strdup.c b/lib/unistr/u32-strdup.c
index 93293a6a..fd008b87 100644
--- a/lib/unistr/u32-strdup.c
+++ b/lib/unistr/u32-strdup.c
@@ -1,5 +1,5 @@
 /* Copy UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strlen.c b/lib/unistr/u32-strlen.c
index 9cdd8371..76245ba4 100644
--- a/lib/unistr/u32-strlen.c
+++ b/lib/unistr/u32-strlen.c
@@ -1,5 +1,5 @@
 /* Determine length of UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strmblen.c b/lib/unistr/u32-strmblen.c
index 7ca14f43..35e5fac2 100644
--- a/lib/unistr/u32-strmblen.c
+++ b/lib/unistr/u32-strmblen.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strmbtouc.c b/lib/unistr/u32-strmbtouc.c
index dabe648f..71db0944 100644
--- a/lib/unistr/u32-strmbtouc.c
+++ b/lib/unistr/u32-strmbtouc.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strncat.c b/lib/unistr/u32-strncat.c
index 0b1ea3e4..a57cf80e 100644
--- a/lib/unistr/u32-strncat.c
+++ b/lib/unistr/u32-strncat.c
@@ -1,5 +1,5 @@
 /* Concatenate UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strncmp.c b/lib/unistr/u32-strncmp.c
index 95c747d0..cb9011c0 100644
--- a/lib/unistr/u32-strncmp.c
+++ b/lib/unistr/u32-strncmp.c
@@ -1,5 +1,5 @@
 /* Compare UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strncpy.c b/lib/unistr/u32-strncpy.c
index d5e1c81a..3508fd51 100644
--- a/lib/unistr/u32-strncpy.c
+++ b/lib/unistr/u32-strncpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strnlen.c b/lib/unistr/u32-strnlen.c
index d0e8c036..d9750141 100644
--- a/lib/unistr/u32-strnlen.c
+++ b/lib/unistr/u32-strnlen.c
@@ -1,5 +1,5 @@
 /* Determine bounded length of UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strpbrk.c b/lib/unistr/u32-strpbrk.c
index 1c4ac2ea..3c10d414 100644
--- a/lib/unistr/u32-strpbrk.c
+++ b/lib/unistr/u32-strpbrk.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strrchr.c b/lib/unistr/u32-strrchr.c
index b26b9f76..64ed5c03 100644
--- a/lib/unistr/u32-strrchr.c
+++ b/lib/unistr/u32-strrchr.c
@@ -1,5 +1,5 @@
 /* Search character in UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strspn.c b/lib/unistr/u32-strspn.c
index 50d6dc95..d84442c3 100644
--- a/lib/unistr/u32-strspn.c
+++ b/lib/unistr/u32-strspn.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strstr.c b/lib/unistr/u32-strstr.c
index a144e3b1..0bda4c41 100644
--- a/lib/unistr/u32-strstr.c
+++ b/lib/unistr/u32-strstr.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-32 strings.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-strtok.c b/lib/unistr/u32-strtok.c
index 75a132bb..5097b204 100644
--- a/lib/unistr/u32-strtok.c
+++ b/lib/unistr/u32-strtok.c
@@ -1,5 +1,5 @@
 /* Tokenize UTF-32 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-to-u16.c b/lib/unistr/u32-to-u16.c
index 29fd0edd..352a7aac 100644
--- a/lib/unistr/u32-to-u16.c
+++ b/lib/unistr/u32-to-u16.c
@@ -1,5 +1,5 @@
 /* Convert UTF-32 string to UTF-16 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-to-u8.c b/lib/unistr/u32-to-u8.c
index 190ae7d2..f4363ad6 100644
--- a/lib/unistr/u32-to-u8.c
+++ b/lib/unistr/u32-to-u8.c
@@ -1,5 +1,5 @@
 /* Convert UTF-32 string to UTF-8 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u32-uctomb.c b/lib/unistr/u32-uctomb.c
index 2bda3341..195933dd 100644
--- a/lib/unistr/u32-uctomb.c
+++ b/lib/unistr/u32-uctomb.c
@@ -1,5 +1,5 @@
 /* Store a character in UTF-32 string.
-   Copyright (C) 2002, 2005-2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005-2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-check.c b/lib/unistr/u8-check.c
index 71658d93..ada466a9 100644
--- a/lib/unistr/u8-check.c
+++ b/lib/unistr/u8-check.c
@@ -1,5 +1,5 @@
 /* Check UTF-8 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-chr.c b/lib/unistr/u8-chr.c
index a62fe632..926adc6e 100644
--- a/lib/unistr/u8-chr.c
+++ b/lib/unistr/u8-chr.c
@@ -1,5 +1,5 @@
 /* Search character in piece of UTF-8 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-cmp.c b/lib/unistr/u8-cmp.c
index 7abfd8ca..6c3264cc 100644
--- a/lib/unistr/u8-cmp.c
+++ b/lib/unistr/u8-cmp.c
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-cmp2.c b/lib/unistr/u8-cmp2.c
index feeddd38..cc9c627f 100644
--- a/lib/unistr/u8-cmp2.c
+++ b/lib/unistr/u8-cmp2.c
@@ -1,5 +1,5 @@
 /* Compare pieces of UTF-8 strings.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-cpy-alloc.c b/lib/unistr/u8-cpy-alloc.c
index 2f364639..70a91914 100644
--- a/lib/unistr/u8-cpy-alloc.c
+++ b/lib/unistr/u8-cpy-alloc.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-cpy.c b/lib/unistr/u8-cpy.c
index 86fe0ae7..b158105c 100644
--- a/lib/unistr/u8-cpy.c
+++ b/lib/unistr/u8-cpy.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-endswith.c b/lib/unistr/u8-endswith.c
index 1813b1ec..8ec48a33 100644
--- a/lib/unistr/u8-endswith.c
+++ b/lib/unistr/u8-endswith.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mblen.c b/lib/unistr/u8-mblen.c
index a30ea9b3..7b630a07 100644
--- a/lib/unistr/u8-mblen.c
+++ b/lib/unistr/u8-mblen.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-8 string.
-   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software
+   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2017 Free Software
    Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mbsnlen.c b/lib/unistr/u8-mbsnlen.c
index 7ec682f9..147cf349 100644
--- a/lib/unistr/u8-mbsnlen.c
+++ b/lib/unistr/u8-mbsnlen.c
@@ -1,5 +1,5 @@
 /* Count characters in UTF-8 string.
-   Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2007.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mbtouc-aux.c b/lib/unistr/u8-mbtouc-aux.c
index 7426e926..d24aba50 100644
--- a/lib/unistr/u8-mbtouc-aux.c
+++ b/lib/unistr/u8-mbtouc-aux.c
@@ -1,5 +1,5 @@
 /* Conversion UTF-8 to UCS-4.
-   Copyright (C) 2001-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2001-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mbtouc-unsafe-aux.c b/lib/unistr/u8-mbtouc-unsafe-aux.c
index 80cdcca7..4a3c3ea4 100644
--- a/lib/unistr/u8-mbtouc-unsafe-aux.c
+++ b/lib/unistr/u8-mbtouc-unsafe-aux.c
@@ -1,5 +1,5 @@
 /* Conversion UTF-8 to UCS-4.
-   Copyright (C) 2001-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2001-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mbtouc-unsafe.c b/lib/unistr/u8-mbtouc-unsafe.c
index 679a686b..7d6ddb5c 100644
--- a/lib/unistr/u8-mbtouc-unsafe.c
+++ b/lib/unistr/u8-mbtouc-unsafe.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-8 string.
-   Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mbtouc.c b/lib/unistr/u8-mbtouc.c
index db9bec32..dfd496f4 100644
--- a/lib/unistr/u8-mbtouc.c
+++ b/lib/unistr/u8-mbtouc.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-8 string.
-   Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-mbtoucr.c b/lib/unistr/u8-mbtoucr.c
index 45785c07..26246035 100644
--- a/lib/unistr/u8-mbtoucr.c
+++ b/lib/unistr/u8-mbtoucr.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-8 string, returning an error code.
-   Copyright (C) 1999-2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999-2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-move.c b/lib/unistr/u8-move.c
index 2919068c..23ecf20b 100644
--- a/lib/unistr/u8-move.c
+++ b/lib/unistr/u8-move.c
@@ -1,5 +1,5 @@
 /* Copy piece of UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-next.c b/lib/unistr/u8-next.c
index 9839cc9b..8a3224d8 100644
--- a/lib/unistr/u8-next.c
+++ b/lib/unistr/u8-next.c
@@ -1,5 +1,5 @@
 /* Iterate over next character in UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-prev.c b/lib/unistr/u8-prev.c
index bdd7fb9e..fb091e83 100644
--- a/lib/unistr/u8-prev.c
+++ b/lib/unistr/u8-prev.c
@@ -1,5 +1,5 @@
 /* Iterate over previous character in UTF-8 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-set.c b/lib/unistr/u8-set.c
index 9bc2c16d..29098aa2 100644
--- a/lib/unistr/u8-set.c
+++ b/lib/unistr/u8-set.c
@@ -1,5 +1,5 @@
 /* Fill UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-startswith.c b/lib/unistr/u8-startswith.c
index 342acf7b..1c32cce5 100644
--- a/lib/unistr/u8-startswith.c
+++ b/lib/unistr/u8-startswith.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-stpcpy.c b/lib/unistr/u8-stpcpy.c
index 2079fabc..07ebfed8 100644
--- a/lib/unistr/u8-stpcpy.c
+++ b/lib/unistr/u8-stpcpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Ensure stpcpy() gets declared.  */
 #ifndef _GNU_SOURCE
diff --git a/lib/unistr/u8-stpncpy.c b/lib/unistr/u8-stpncpy.c
index b1b4fae1..d34c1f2e 100644
--- a/lib/unistr/u8-stpncpy.c
+++ b/lib/unistr/u8-stpncpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Ensure stpncpy() gets declared.  */
 #ifndef _GNU_SOURCE
diff --git a/lib/unistr/u8-strcat.c b/lib/unistr/u8-strcat.c
index 33886f5e..1ff5646f 100644
--- a/lib/unistr/u8-strcat.c
+++ b/lib/unistr/u8-strcat.c
@@ -1,5 +1,5 @@
 /* Concatenate UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strchr.c b/lib/unistr/u8-strchr.c
index 82718f1f..6a5776bd 100644
--- a/lib/unistr/u8-strchr.c
+++ b/lib/unistr/u8-strchr.c
@@ -1,5 +1,5 @@
 /* Search character in UTF-8 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strcmp.c b/lib/unistr/u8-strcmp.c
index eab054a4..df081729 100644
--- a/lib/unistr/u8-strcmp.c
+++ b/lib/unistr/u8-strcmp.c
@@ -1,5 +1,5 @@
 /* Compare UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strcoll.c b/lib/unistr/u8-strcoll.c
index 9024e2ca..7cc79a05 100644
--- a/lib/unistr/u8-strcoll.c
+++ b/lib/unistr/u8-strcoll.c
@@ -1,5 +1,5 @@
 /* Compare UTF-8 strings using the collation rules of the current locale.
-   Copyright (C) 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2009.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strcpy.c b/lib/unistr/u8-strcpy.c
index 149aa08b..23a2fdc1 100644
--- a/lib/unistr/u8-strcpy.c
+++ b/lib/unistr/u8-strcpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strcspn.c b/lib/unistr/u8-strcspn.c
index a053613f..dca56393 100644
--- a/lib/unistr/u8-strcspn.c
+++ b/lib/unistr/u8-strcspn.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strdup.c b/lib/unistr/u8-strdup.c
index ec9141a0..2305bbee 100644
--- a/lib/unistr/u8-strdup.c
+++ b/lib/unistr/u8-strdup.c
@@ -1,5 +1,5 @@
 /* Copy UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strlen.c b/lib/unistr/u8-strlen.c
index 36aef7dc..d4a8de6c 100644
--- a/lib/unistr/u8-strlen.c
+++ b/lib/unistr/u8-strlen.c
@@ -1,5 +1,5 @@
 /* Determine length of UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strmblen.c b/lib/unistr/u8-strmblen.c
index 79412328..1e39ac83 100644
--- a/lib/unistr/u8-strmblen.c
+++ b/lib/unistr/u8-strmblen.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-8 string.
-   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software
+   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2017 Free Software
    Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strmbtouc.c b/lib/unistr/u8-strmbtouc.c
index da70d714..0a114f0a 100644
--- a/lib/unistr/u8-strmbtouc.c
+++ b/lib/unistr/u8-strmbtouc.c
@@ -1,5 +1,5 @@
 /* Look at first character in UTF-8 string.
-   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2016 Free Software
+   Copyright (C) 1999-2000, 2002, 2006-2007, 2009-2017 Free Software
    Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strncat.c b/lib/unistr/u8-strncat.c
index bbc78745..359a6f08 100644
--- a/lib/unistr/u8-strncat.c
+++ b/lib/unistr/u8-strncat.c
@@ -1,5 +1,5 @@
 /* Concatenate UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strncmp.c b/lib/unistr/u8-strncmp.c
index 391eb517..5d63a00a 100644
--- a/lib/unistr/u8-strncmp.c
+++ b/lib/unistr/u8-strncmp.c
@@ -1,5 +1,5 @@
 /* Compare UTF-8 strings.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strncpy.c b/lib/unistr/u8-strncpy.c
index e774b521..585039a4 100644
--- a/lib/unistr/u8-strncpy.c
+++ b/lib/unistr/u8-strncpy.c
@@ -1,5 +1,5 @@
 /* Copy UTF-8 string.
-   Copyright (C) 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strnlen.c b/lib/unistr/u8-strnlen.c
index b176c0e6..9309eca9 100644
--- a/lib/unistr/u8-strnlen.c
+++ b/lib/unistr/u8-strnlen.c
@@ -1,5 +1,5 @@
 /* Determine bounded length of UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Ensure strnlen() gets declared.  */
 #ifndef _GNU_SOURCE
diff --git a/lib/unistr/u8-strpbrk.c b/lib/unistr/u8-strpbrk.c
index 69d19ecb..5b721718 100644
--- a/lib/unistr/u8-strpbrk.c
+++ b/lib/unistr/u8-strpbrk.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strrchr.c b/lib/unistr/u8-strrchr.c
index be07f9b5..9a188b7a 100644
--- a/lib/unistr/u8-strrchr.c
+++ b/lib/unistr/u8-strrchr.c
@@ -1,5 +1,5 @@
 /* Search character in UTF-8 string.
-   Copyright (C) 1999, 2002, 2006-2007, 2009-2016 Free Software Foundation,
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2017 Free Software Foundation,
    Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
@@ -23,7 +23,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strspn.c b/lib/unistr/u8-strspn.c
index 07ac00ce..478b3ffb 100644
--- a/lib/unistr/u8-strspn.c
+++ b/lib/unistr/u8-strspn.c
@@ -1,5 +1,5 @@
 /* Search for some characters in UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strstr.c b/lib/unistr/u8-strstr.c
index 8fd1a746..6d103acc 100644
--- a/lib/unistr/u8-strstr.c
+++ b/lib/unistr/u8-strstr.c
@@ -1,5 +1,5 @@
 /* Substring test for UTF-8 strings.
-   Copyright (C) 1999, 2002, 2006, 2010-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2010-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-strtok.c b/lib/unistr/u8-strtok.c
index 976e2c3d..3a2b47dc 100644
--- a/lib/unistr/u8-strtok.c
+++ b/lib/unistr/u8-strtok.c
@@ -1,5 +1,5 @@
 /* Tokenize UTF-8 string.
-   Copyright (C) 1999, 2002, 2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-to-u16.c b/lib/unistr/u8-to-u16.c
index e27b5d51..b2603722 100644
--- a/lib/unistr/u8-to-u16.c
+++ b/lib/unistr/u8-to-u16.c
@@ -1,5 +1,5 @@
 /* Convert UTF-8 string to UTF-16 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-to-u32.c b/lib/unistr/u8-to-u32.c
index 8d2b1ef9..2788df9f 100644
--- a/lib/unistr/u8-to-u32.c
+++ b/lib/unistr/u8-to-u32.c
@@ -1,5 +1,5 @@
 /* Convert UTF-8 string to UTF-32 string.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unistr/u8-uctomb-aux.c b/lib/unistr/u8-uctomb-aux.c
index 14326e5f..2d5c45f9 100644
--- a/lib/unistr/u8-uctomb-aux.c
+++ b/lib/unistr/u8-uctomb-aux.c
@@ -1,5 +1,5 @@
 /* Conversion UCS-4 to UTF-8.
-   Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,13 +22,21 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
 /* Specification.  */
 #include "unistr.h"
 
+#ifndef FALLTHROUGH
+# if __GNUC__ < 7
+#  define FALLTHROUGH ((void) 0)
+# else
+#  define FALLTHROUGH __attribute__ ((__fallthrough__))
+# endif
+#endif
+
 int
 u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n)
 {
@@ -57,9 +65,9 @@ u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n)
   switch (count) /* note: code falls through cases! */
     {
     case 4: s[3] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x10000;
-      /* fallthrough */
+      FALLTHROUGH;
     case 3: s[2] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x800;
-      /* fallthrough */
+      FALLTHROUGH;
     case 2: s[1] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0xc0;
   /*case 1:*/ s[0] = uc;
     }
diff --git a/lib/unistr/u8-uctomb.c b/lib/unistr/u8-uctomb.c
index 26857a5c..4cd9beb5 100644
--- a/lib/unistr/u8-uctomb.c
+++ b/lib/unistr/u8-uctomb.c
@@ -1,5 +1,5 @@
 /* Store a character in UTF-8 string.
-   Copyright (C) 2002, 2005-2006, 2009-2016 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005-2006, 2009-2017 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2002.
 
    This program is free software: you can redistribute it and/or
@@ -22,7 +22,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>