diff --git a/ChangeLog b/ChangeLog
index ec42758..a45ff34 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2017-09-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ Prefer https: to http: for gnu.org
+ In Gnulib, Emacs, etc. we are changing ftp: and http: URLs to
+ use https:, to help defend against man-in-the-middle attacks.
+ Propagate these changes upstream to the config scripts.
+ * config.guess, config.sub: Use https: URLs in diagnostics
+ and in comments.
+
2017-09-15 Ben Elliston <bje@gnu.org>
* testsuite/config-sub.data (i386-windows): New test case.
@@ -578,7 +587,7 @@
* config.guess: Contract the list of copyright years into the
range 1992-2013. Remove "(C)" character sequence from copyright
- statements. Per http://www.gnu.org/licenses/gpl-howto.html.
+ statements. Per https://www.gnu.org/licenses/gpl-howto.html.
* config.sub: Likewise.
2013-01-23 Sandra Loosemore <sandra@codesourcery.com>
@@ -1838,7 +1847,7 @@
sysctl ((int[]) {CTL_HW, HW_MACHINE_ARCH}, 2, buffer, &bufsize, 0, 0)
to return a negative number.
Problem reported by Petter Reinholdtsen in:
- http://lists.gnu.org/archive/html/bug-gnu-utils/2003-02/msg00201.html
+ https://lists.gnu.org/archive/html/bug-gnu-utils/2003-02/msg00201.html
2004-07-19 Ben Elliston <bje@gnu.org>
diff --git a/config.guess b/config.guess
index 7834a66..8bd1095 100755
--- a/config.guess
+++ b/config.guess
@@ -2,7 +2,7 @@
# Attempt to guess a canonical system name.
# Copyright 1992-2017 Free Software Foundation, Inc.
-timestamp='2017-09-12'
+timestamp='2017-09-16'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@ timestamp='2017-09-12'
# General Public License for more details.
#
# You should have received a copy of the GNU 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/>.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
@@ -27,7 +27,7 @@ timestamp='2017-09-12'
# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
#
# You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
#
# Please send patches to <config-patches@gnu.org>.
@@ -1407,9 +1407,9 @@ This script (version $timestamp), has failed to recognize the
operating system you are using. If your script is old, overwrite *all*
copies of config.guess and config.sub with the latest versions from:
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+ https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
and
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+ https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
If $0 has already been updated, send the following data and any
information you think might be pertinent to config-patches@gnu.org to
diff --git a/config.sub b/config.sub
index 6e08808..95dc3d0 100755
--- a/config.sub
+++ b/config.sub
@@ -2,7 +2,7 @@
# Configuration validation subroutine script.
# Copyright 1992-2017 Free Software Foundation, Inc.
-timestamp='2017-09-13'
+timestamp='2017-09-16'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@ timestamp='2017-09-13'
# General Public License for more details.
#
# You should have received a copy of the GNU 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/>.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
@@ -33,7 +33,7 @@ timestamp='2017-09-13'
# Otherwise, we print the canonical config type on stdout and succeed.
# You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
# This file is supposed to be the same for all GNU packages
# and recognize all the CPU types, system types and aliases