Merge from Gnulib

This incorporates:
2017-09-13 all: prefer https: URLs
This just changes http: to https: in comments,
in files copied from Gnulib.

150 files changed, 157 insertions, 157 deletions

diff --git a/build-aux/gitlog-to-changelog b/build-aux/gitlog-to-changelog
index cf164254634..ec5ab9e141c 100755
--- a/build-aux/gitlog-to-changelog
+++ b/build-aux/gitlog-to-changelog
@@ -3,7 +3,7 @@ eval '(exit $?0)' && eval 'exec perl -wS "$0" "$@"'
     if 0;
 # Convert git log output to ChangeLog format.
 
-my $VERSION = '2016-03-22 21:49'; # UTC
+my $VERSION = '2017-09-13 06:45'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
@@ -22,7 +22,7 @@ my $VERSION = '2016-03-22 21:49'; # UTC
 # GNU 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/>.
 
 # Written by Jim Meyering
 
diff --git a/build-aux/move-if-change b/build-aux/move-if-change
index 4dd86995921..4a65145594c 100755
--- a/build-aux/move-if-change
+++ b/build-aux/move-if-change
@@ -2,7 +2,7 @@
 # Like mv $1 $2, but if the files are the same, just delete $1.
 # Status is zero if successful, nonzero otherwise.
 
-VERSION='2016-01-11 22:04'; # UTC
+VERSION='2017-09-13 06:45'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
@@ -21,7 +21,7 @@ VERSION='2016-01-11 22:04'; # UTC
 # GNU 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/>.
 
 usage="usage: $0 SOURCE DEST"
 
@@ -39,7 +39,7 @@ Report bugs to <bug-gnulib@gnu.org>."
 version=`expr "$VERSION" : '\([^ ]*\)'`
 version="move-if-change (gnulib) $version
 Copyright (C) 2011 Free Software Foundation, Inc.
-License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
+License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law."
 
diff --git a/build-aux/update-copyright b/build-aux/update-copyright
index 2d20d211c9e..63455c37948 100755
--- a/build-aux/update-copyright
+++ b/build-aux/update-copyright
@@ -3,7 +3,7 @@ eval '(exit $?0)' && eval 'exec perl -wS -0777 -pi "$0" "$@"'
     if 0;
 # Update an FSF copyright year list to include the current year.
 
-my $VERSION = '2016-01-12.23:13'; # UTC
+my $VERSION = '2017-09-13.06:45'; # UTC
 
 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
 #
@@ -18,7 +18,7 @@ my $VERSION = '2016-01-12.23:13'; # UTC
 # GNU 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/>.
 
 # Written by Jim Meyering and Joel E. Denny
 
diff --git a/lib/acl-errno-valid.c b/lib/acl-errno-valid.c
index a633985663b..1e96974dd12 100644
--- a/lib/acl-errno-valid.c
+++ b/lib/acl-errno-valid.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert.  */
 
diff --git a/lib/acl-internal.c b/lib/acl-internal.c
index 2a2dee947d3..63e6b6b997c 100644
--- a/lib/acl-internal.c
+++ b/lib/acl-internal.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
 
diff --git a/lib/acl-internal.h b/lib/acl-internal.h
index e7bda0eadeb..ebd24217bb6 100644
--- a/lib/acl-internal.h
+++ b/lib/acl-internal.h
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
 
diff --git a/lib/acl.h b/lib/acl.h
index b13370c5912..d3b048022e3 100644
--- a/lib/acl.h
+++ b/lib/acl.h
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert.  */
 
diff --git a/lib/acl_entries.c b/lib/acl_entries.c
index 1df6a844dfe..c7efaefd52f 100644
--- a/lib/acl_entries.c
+++ b/lib/acl_entries.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert and Andreas Gruenbacher.  */
 
diff --git a/lib/alloca.in.h b/lib/alloca.in.h
index c3dc38a5b94..1881e74f5dc 100644
--- a/lib/alloca.in.h
+++ b/lib/alloca.in.h
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with this program; if not, see
-   <http://www.gnu.org/licenses/>.
+   <https://www.gnu.org/licenses/>.
   */
 
 /* Avoid using the symbol _ALLOCA_H here, as Bison assumes _ALLOCA_H
diff --git a/lib/allocator.h b/lib/allocator.h
index 650f8e071ea..2ecbf1a3795 100644
--- a/lib/allocator.h
+++ b/lib/allocator.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/arg-nonnull.h b/lib/arg-nonnull.h
index 1e62cc89827..61ee0712747 100644
--- a/lib/arg-nonnull.h
+++ b/lib/arg-nonnull.h
@@ -12,7 +12,7 @@
    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/>.  */
 
 /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
    that the values passed as arguments n, ..., m must be non-NULL pointers.
diff --git a/lib/at-func.c b/lib/at-func.c
index 9eaa9932fab..2a3e375e9a2 100644
--- a/lib/at-func.c
+++ b/lib/at-func.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/binary-io.c b/lib/binary-io.c
index a7558b20fd1..2cee469781c 100644
--- a/lib/binary-io.c
+++ b/lib/binary-io.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/binary-io.h b/lib/binary-io.h
index 9f1dde108eb..75adb33c918 100644
--- a/lib/binary-io.h
+++ b/lib/binary-io.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #ifndef _BINARY_H
 #define _BINARY_H
diff --git a/lib/byteswap.in.h b/lib/byteswap.in.h
index 5fc0663defa..32385a289c6 100644
--- a/lib/byteswap.in.h
+++ b/lib/byteswap.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef _GL_BYTESWAP_H
 #define _GL_BYTESWAP_H
diff --git a/lib/c++defs.h b/lib/c++defs.h
index f03f3591c35..09dcd3e0687 100644
--- a/lib/c++defs.h
+++ b/lib/c++defs.h
@@ -12,7 +12,7 @@
    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/>.  */
 
 #ifndef _GL_CXXDEFS_H
 #define _GL_CXXDEFS_H
@@ -266,7 +266,7 @@
    _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
 # define _GL_CXXALIASWARN_1(func,namespace) \
    _GL_CXXALIASWARN_2 (func, namespace)
-/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
    we enable the warning only when not optimizing.  */
 # if !__OPTIMIZE__
 #  define _GL_CXXALIASWARN_2(func,namespace) \
@@ -294,7 +294,7 @@
                         GNULIB_NAMESPACE)
 # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
    _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
-/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
    we enable the warning only when not optimizing.  */
 # if !__OPTIMIZE__
 #  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
diff --git a/lib/c-ctype.h b/lib/c-ctype.h
index bcdba6b9962..9ad3c18d471 100644
--- a/lib/c-ctype.h
+++ b/lib/c-ctype.h
@@ -18,7 +18,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU 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/>.  */
 
 #ifndef C_CTYPE_H
 #define C_CTYPE_H
diff --git a/lib/c-strcase.h b/lib/c-strcase.h
index c82dab1dbe6..220d21d34ec 100644
--- a/lib/c-strcase.h
+++ b/lib/c-strcase.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef C_STRCASE_H
 #define C_STRCASE_H
diff --git a/lib/c-strcasecmp.c b/lib/c-strcasecmp.c
index 5bce873d7b2..b2880a2e6c7 100644
--- a/lib/c-strcasecmp.c
+++ b/lib/c-strcasecmp.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/c-strncasecmp.c b/lib/c-strncasecmp.c
index ada62d70b7b..982e17915bc 100644
--- a/lib/c-strncasecmp.c
+++ b/lib/c-strncasecmp.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/careadlinkat.c b/lib/careadlinkat.c
index 455e00efe00..e2af54f0984 100644
--- a/lib/careadlinkat.c
+++ b/lib/careadlinkat.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert, Bruno Haible, and Jim Meyering.  */
 
diff --git a/lib/careadlinkat.h b/lib/careadlinkat.h
index 528a8289e56..d436c691eaa 100644
--- a/lib/careadlinkat.h
+++ b/lib/careadlinkat.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert, Bruno Haible, and Jim Meyering.  */
 
diff --git a/lib/cloexec.c b/lib/cloexec.c
index e34aef87976..2b67a0102e7 100644
--- a/lib/cloexec.c
+++ b/lib/cloexec.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    The code is taken from glibc/manual/llio.texi  */
 
diff --git a/lib/cloexec.h b/lib/cloexec.h
index cdaf422226d..d937a406817 100644
--- a/lib/cloexec.h
+++ b/lib/cloexec.h
@@ -13,7 +13,7 @@
    GNU 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/>.
 
 */
 
diff --git a/lib/close-stream.c b/lib/close-stream.c
index 96c126536cc..19707626fa2 100644
--- a/lib/close-stream.c
+++ b/lib/close-stream.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/count-leading-zeros.h b/lib/count-leading-zeros.h
index e197137e66e..1b60e28e7ff 100644
--- a/lib/count-leading-zeros.h
+++ b/lib/count-leading-zeros.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* Written by Eric Blake.  */
 
diff --git a/lib/count-one-bits.h b/lib/count-one-bits.h
index fb5fb927ff4..1576b08481b 100644
--- a/lib/count-one-bits.h
+++ b/lib/count-one-bits.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* Written by Ben Pfaff.  */
 
diff --git a/lib/count-trailing-zeros.h b/lib/count-trailing-zeros.h
index 4a0a109d991..be7131429c1 100644
--- a/lib/count-trailing-zeros.h
+++ b/lib/count-trailing-zeros.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/diffseq.h b/lib/diffseq.h
index a3cf140990b..b6f9f6f9d19 100644
--- a/lib/diffseq.h
+++ b/lib/diffseq.h
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 
 /* The basic idea is to consider two vectors as similar if, when
diff --git a/lib/dirent.in.h b/lib/dirent.in.h
index f59178751b1..5b235731e04 100644
--- a/lib/dirent.in.h
+++ b/lib/dirent.in.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #ifndef _@GUARD_PREFIX@_DIRENT_H
 
diff --git a/lib/dirfd.c b/lib/dirfd.c
index 6b1a7b27443..7e38fabdac2 100644
--- a/lib/dirfd.c
+++ b/lib/dirfd.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Jim Meyering. */
 
diff --git a/lib/dosname.h b/lib/dosname.h
index dd5c177725c..255d57e4d6b 100644
--- a/lib/dosname.h
+++ b/lib/dosname.h
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    From Paul Eggert and Jim Meyering.  */
 
diff --git a/lib/dtotimespec.c b/lib/dtotimespec.c
index 3ca5a9cfd35..8f2e8150c9b 100644
--- a/lib/dtotimespec.c
+++ b/lib/dtotimespec.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Paul Eggert */
 
diff --git a/lib/dup2.c b/lib/dup2.c
index 002dc8c76cb..b89f83732fe 100644
--- a/lib/dup2.c
+++ b/lib/dup2.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Paul Eggert */
 
diff --git a/lib/errno.in.h b/lib/errno.in.h
index 13194f9d291..aaf5fecd73b 100644
--- a/lib/errno.in.h
+++ b/lib/errno.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef _@GUARD_PREFIX@_ERRNO_H
 
diff --git a/lib/euidaccess.c b/lib/euidaccess.c
index da2bda9be0c..298c4459477 100644
--- a/lib/euidaccess.c
+++ b/lib/euidaccess.c
@@ -16,7 +16,7 @@
    GNU 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/>.  */
 
 /* Written by David MacKenzie and Torbjorn Granlund.
    Adapted for GNU C library by Roland McGrath.  */
diff --git a/lib/execinfo.in.h b/lib/execinfo.in.h
index 065a78dbffa..f2269269c53 100644
--- a/lib/execinfo.in.h
+++ b/lib/execinfo.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/explicit_bzero.c b/lib/explicit_bzero.c
index 262c68f9cd6..09093467769 100644
--- a/lib/explicit_bzero.c
+++ b/lib/explicit_bzero.c
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 /* An assembler implementation of explicit_bzero can be created as an
    assembler alias of an optimized bzero implementation.
diff --git a/lib/faccessat.c b/lib/faccessat.c
index f9458e83039..6cf9c99df20 100644
--- a/lib/faccessat.c
+++ b/lib/faccessat.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* written by Eric Blake */
 
diff --git a/lib/fcntl.c b/lib/fcntl.c
index d4dd144e05d..91efd12c2ba 100644
--- a/lib/fcntl.c
+++ b/lib/fcntl.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Eric Blake <ebb9@byu.net>.  */
 
diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h
index 076d1ac34a7..00b270c958d 100644
--- a/lib/fcntl.in.h
+++ b/lib/fcntl.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Paul Eggert */
 
diff --git a/lib/fdatasync.c b/lib/fdatasync.c
index 6875fa4c69c..25fd74049fb 100644
--- a/lib/fdatasync.c
+++ b/lib/fdatasync.c
@@ -13,7 +13,7 @@
    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/>.  */
 
 #include <config.h>
 #include <unistd.h>
diff --git a/lib/fdopendir.c b/lib/fdopendir.c
index 03be92adc1f..7f72258598d 100644
--- a/lib/fdopendir.c
+++ b/lib/fdopendir.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/filemode.c b/lib/filemode.c
index d62f70bc9bd..c6cf1f3196c 100644
--- a/lib/filemode.c
+++ b/lib/filemode.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/filemode.h b/lib/filemode.h
index 5fbb79146d8..809bf7eb0fb 100644
--- a/lib/filemode.h
+++ b/lib/filemode.h
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #ifndef FILEMODE_H_
 
diff --git a/lib/filevercmp.c b/lib/filevercmp.c
index 0396867c7e5..56c9821e364 100644
--- a/lib/filevercmp.c
+++ b/lib/filevercmp.c
@@ -14,7 +14,7 @@
    GNU 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/>. */
 
 #include <config.h>
 #include "filevercmp.h"
diff --git a/lib/filevercmp.h b/lib/filevercmp.h
index d6989911726..25cc6f624cd 100644
--- a/lib/filevercmp.h
+++ b/lib/filevercmp.h
@@ -14,7 +14,7 @@
    GNU 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/>. */
 
 #ifndef FILEVERCMP_H
 #define FILEVERCMP_H
diff --git a/lib/flexmember.h b/lib/flexmember.h
index 7405c418382..7e4f95d3c89 100644
--- a/lib/flexmember.h
+++ b/lib/flexmember.h
@@ -16,7 +16,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.
+   <https://www.gnu.org/licenses/>.
 
    Written by Paul Eggert.  */
 
diff --git a/lib/fpending.c b/lib/fpending.c
index 02602a1c27f..5811a4a7475 100644
--- a/lib/fpending.c
+++ b/lib/fpending.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Jim Meyering. */
 
diff --git a/lib/fpending.h b/lib/fpending.h
index a901deee4b0..73c7d795c18 100644
--- a/lib/fpending.h
+++ b/lib/fpending.h
@@ -14,7 +14,7 @@
    GNU 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/>.
 
    Written by Jim Meyering.  */
 
diff --git a/lib/fstatat.c b/lib/fstatat.c
index 70799bebcd3..d09add037fa 100644
--- a/lib/fstatat.c
+++ b/lib/fstatat.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert and Jim Meyering.  */
 
diff --git a/lib/fsync.c b/lib/fsync.c
index 5a4945ef2bf..a52e6642f91 100644
--- a/lib/fsync.c
+++ b/lib/fsync.c
@@ -20,7 +20,7 @@
    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/>.  */
 
 #include <config.h>
 #include <unistd.h>
diff --git a/lib/ftoastr.c b/lib/ftoastr.c
index f2434161db8..029e797b796 100644
--- a/lib/ftoastr.c
+++ b/lib/ftoastr.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/ftoastr.h b/lib/ftoastr.h
index 74a855ac21a..3ee05a30335 100644
--- a/lib/ftoastr.h
+++ b/lib/ftoastr.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/get-permissions.c b/lib/get-permissions.c
index dc77748af19..c54d71c1c56 100644
--- a/lib/get-permissions.c
+++ b/lib/get-permissions.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
 
diff --git a/lib/getdtablesize.c b/lib/getdtablesize.c
index a0928630fa5..d0a5ecaf5d6 100644
--- a/lib/getdtablesize.c
+++ b/lib/getdtablesize.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/getgroups.c b/lib/getgroups.c
index dce0f2d0034..52473a5a230 100644
--- a/lib/getgroups.c
+++ b/lib/getgroups.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/getloadavg.c b/lib/getloadavg.c
index 0fe23bb9a59..5f2dfabb6fd 100644
--- a/lib/getloadavg.c
+++ b/lib/getloadavg.c
@@ -17,7 +17,7 @@
    GNU 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/>.  */
 
 /* Compile-time symbols that this file uses:
 
diff --git a/lib/getopt-cdefs.in.h b/lib/getopt-cdefs.in.h
index c71a4f11f64..21d847b8c3d 100644
--- a/lib/getopt-cdefs.in.h
+++ b/lib/getopt-cdefs.in.h
@@ -16,7 +16,7 @@
 
    You should have received a copy of the GNU General Public
    License along with gnulib; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_CDEFS_H
 #define _GETOPT_CDEFS_H 1
diff --git a/lib/getopt-core.h b/lib/getopt-core.h
index d315891aefd..ec0734c7230 100644
--- a/lib/getopt-core.h
+++ b/lib/getopt-core.h
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_CORE_H
 #define _GETOPT_CORE_H 1
diff --git a/lib/getopt-ext.h b/lib/getopt-ext.h
index e4da22f54f5..4cdbfb0e7a5 100644
--- a/lib/getopt-ext.h
+++ b/lib/getopt-ext.h
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_EXT_H
 #define _GETOPT_EXT_H 1
diff --git a/lib/getopt-pfx-core.h b/lib/getopt-pfx-core.h
index db5f15c22d7..2ede4bbffef 100644
--- a/lib/getopt-pfx-core.h
+++ b/lib/getopt-pfx-core.h
@@ -16,7 +16,7 @@
 
    You should have received a copy of the GNU General Public
    License along with gnulib; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_PFX_CORE_H
 #define _GETOPT_PFX_CORE_H 1
diff --git a/lib/getopt-pfx-ext.h b/lib/getopt-pfx-ext.h
index 91f4df1720f..16d9634e8c9 100644
--- a/lib/getopt-pfx-ext.h
+++ b/lib/getopt-pfx-ext.h
@@ -16,7 +16,7 @@
 
    You should have received a copy of the GNU General Public
    License along with gnulib; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_PFX_EXT_H
 #define _GETOPT_PFX_EXT_H 1
diff --git a/lib/getopt.c b/lib/getopt.c
index 9a2867db277..b0cc35bfb1b 100644
--- a/lib/getopt.c
+++ b/lib/getopt.c
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _LIBC
 # include <config.h>
diff --git a/lib/getopt.in.h b/lib/getopt.in.h
index 4ce1eb485af..908f84166af 100644
--- a/lib/getopt.in.h
+++ b/lib/getopt.in.h
@@ -16,7 +16,7 @@
    General Public License for more details.
 
    You should have received a copy of the GNU General Public
-   License along with gnulib; if not, see <http://www.gnu.org/licenses/>.  */
+   License along with gnulib; if not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef _@GUARD_PREFIX@_GETOPT_H
 
diff --git a/lib/getopt1.c b/lib/getopt1.c
index 2bc5926016a..d689f4ce67a 100644
--- a/lib/getopt1.c
+++ b/lib/getopt1.c
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _LIBC
 # include <config.h>
diff --git a/lib/getopt_int.h b/lib/getopt_int.h
index a5562195123..e33856ce9b9 100644
--- a/lib/getopt_int.h
+++ b/lib/getopt_int.h
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_INT_H
 #define _GETOPT_INT_H   1
diff --git a/lib/gettext.h b/lib/gettext.h
index 742ce37e6ce..f6150be6523 100644
--- a/lib/gettext.h
+++ b/lib/gettext.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
+   with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef _LIBGETTEXT_H
 #define _LIBGETTEXT_H 1
diff --git a/lib/gettime.c b/lib/gettime.c
index 4ae313e78ea..e5af26c9902 100644
--- a/lib/gettime.c
+++ b/lib/gettime.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/gettimeofday.c b/lib/gettimeofday.c
index 8ae7622af31..a11b1830c4c 100644
--- a/lib/gettimeofday.c
+++ b/lib/gettimeofday.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in
index fdf87433e50..9500871b162 100644
--- a/lib/gnulib.mk.in
+++ b/lib/gnulib.mk.in
@@ -13,7 +13,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
+# along with this file.  If not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License,
 # this file may be distributed as part of a program that
diff --git a/lib/group-member.c b/lib/group-member.c
index 20f8ee8b67f..7c4ce496753 100644
--- a/lib/group-member.c
+++ b/lib/group-member.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/ignore-value.h b/lib/ignore-value.h
index 2439d9506a7..8ef3fe782f7 100644
--- a/lib/ignore-value.h
+++ b/lib/ignore-value.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Jim Meyering, Eric Blake and Pádraig Brady.  */
 
diff --git a/lib/intprops.h b/lib/intprops.h
index 28f43613fe2..400ba5b9123 100644
--- a/lib/intprops.h
+++ b/lib/intprops.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/inttypes.in.h b/lib/inttypes.in.h
index 69b12a839a8..e7357e96acc 100644
--- a/lib/inttypes.in.h
+++ b/lib/inttypes.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /*
  * ISO C 99 <inttypes.h> for platforms that lack it.
diff --git a/lib/limits.in.h b/lib/limits.in.h
index 08d3c328c4a..78dcf31037e 100644
--- a/lib/limits.in.h
+++ b/lib/limits.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef _@GUARD_PREFIX@_LIMITS_H
 
diff --git a/lib/localtime-buffer.c b/lib/localtime-buffer.c
index f84ad3e8238..c96c577ac1f 100644
--- a/lib/localtime-buffer.c
+++ b/lib/localtime-buffer.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/localtime-buffer.h b/lib/localtime-buffer.h
index 483a579bda4..0a0389da073 100644
--- a/lib/localtime-buffer.h
+++ b/lib/localtime-buffer.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/lstat.c b/lib/lstat.c
index f4dc43ec642..c721a4e641c 100644
--- a/lib/lstat.c
+++ b/lib/lstat.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/md5.c b/lib/md5.c
index dcbba45ddff..e16da5990f3 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -15,7 +15,7 @@
    GNU 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/>.  */
 
 /* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.  */
 
diff --git a/lib/md5.h b/lib/md5.h
index e38a6198708..8b94bfcf0e0 100644
--- a/lib/md5.h
+++ b/lib/md5.h
@@ -15,7 +15,7 @@
    GNU 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/>.  */
 
 #ifndef _MD5_H
 #define _MD5_H 1
diff --git a/lib/memrchr.c b/lib/memrchr.c
index fefe16cc517..29e56984cb1 100644
--- a/lib/memrchr.c
+++ b/lib/memrchr.c
@@ -20,7 +20,7 @@
    GNU 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/>.  */
 
 #if defined _LIBC
 # include <memcopy.h>
diff --git a/lib/minmax.h b/lib/minmax.h
index 6b602a94fdb..bbf14163c1b 100644
--- a/lib/minmax.h
+++ b/lib/minmax.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef _MINMAX_H
 #define _MINMAX_H
diff --git a/lib/mkostemp.c b/lib/mkostemp.c
index 56c22a4464c..f1ce93babea 100644
--- a/lib/mkostemp.c
+++ b/lib/mkostemp.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if !_LIBC
 # include <config.h>
diff --git a/lib/mktime-internal.h b/lib/mktime-internal.h
index 6c8b2e7f526..00e58abdd6c 100644
--- a/lib/mktime-internal.h
+++ b/lib/mktime-internal.h
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU General Public
    License along with this program; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #include <time.h>
 
diff --git a/lib/mktime.c b/lib/mktime.c
index 058ab65c03e..dd7f0a3ab34 100644
--- a/lib/mktime.c
+++ b/lib/mktime.c
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 /* Define this to 1 to have a standalone program to test this implementation of
    mktime.  */
diff --git a/lib/nstrftime.c b/lib/nstrftime.c
index 99bee4ef978..8795cd729d7 100644
--- a/lib/nstrftime.c
+++ b/lib/nstrftime.c
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifdef _LIBC
 # define USE_IN_EXTENDED_LOCALE_MODEL 1
diff --git a/lib/open.c b/lib/open.c
index c62f02b1452..b5452b56afd 100644
--- a/lib/open.c
+++ b/lib/open.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
diff --git a/lib/openat-priv.h b/lib/openat-priv.h
index 2598719eccf..b5a411b944b 100644
--- a/lib/openat-priv.h
+++ b/lib/openat-priv.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/openat-proc.c b/lib/openat-proc.c
index 101449bbb7f..6d2b598c8b2 100644
--- a/lib/openat-proc.c
+++ b/lib/openat-proc.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/openat.h b/lib/openat.h
index a036081e0af..1c4f64a32ed 100644
--- a/lib/openat.h
+++ b/lib/openat.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* written by Jim Meyering */
 
diff --git a/lib/pipe2.c b/lib/pipe2.c
index 830f006bd36..741cee99ff6 100644
--- a/lib/pipe2.c
+++ b/lib/pipe2.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
+   with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/pselect.c b/lib/pselect.c
index 0c44ca9c0ff..2ea7c45307c 100644
--- a/lib/pselect.c
+++ b/lib/pselect.c
@@ -15,7 +15,7 @@
    GNU 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/>.  */
+   with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 /* written by Paul Eggert */
 
diff --git a/lib/pthread_sigmask.c b/lib/pthread_sigmask.c
index cb213303fbd..9ccf89b51fb 100644
--- a/lib/pthread_sigmask.c
+++ b/lib/pthread_sigmask.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/putenv.c b/lib/putenv.c
index b55e2620932..7831864478e 100644
--- a/lib/putenv.c
+++ b/lib/putenv.c
@@ -15,7 +15,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/qcopy-acl.c b/lib/qcopy-acl.c
index fdf0a052b98..003cb42b7db 100644
--- a/lib/qcopy-acl.c
+++ b/lib/qcopy-acl.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
 
diff --git a/lib/readlink.c b/lib/readlink.c
index bf0cedc5fa2..cd9604b224c 100644
--- a/lib/readlink.c
+++ b/lib/readlink.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/readlinkat.c b/lib/readlinkat.c
index 29a71ddfc27..c9880e1c704 100644
--- a/lib/readlinkat.c
+++ b/lib/readlinkat.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* written by Eric Blake */
 
diff --git a/lib/root-uid.h b/lib/root-uid.h
index 3a0037a4863..4aa9dfe24f0 100644
--- a/lib/root-uid.h
+++ b/lib/root-uid.h
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert.  */
 
diff --git a/lib/set-permissions.c b/lib/set-permissions.c
index 75bb2dcce42..b30841fca40 100644
--- a/lib/set-permissions.c
+++ b/lib/set-permissions.c
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
 
diff --git a/lib/sha1.c b/lib/sha1.c
index a57814131d6..ca3eabc45e7 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 /* Written by Scott G. Miller
    Credits:
diff --git a/lib/sha1.h b/lib/sha1.h
index fcef9ce2c60..dd48889fa4c 100644
--- a/lib/sha1.h
+++ b/lib/sha1.h
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #ifndef SHA1_H
 # define SHA1_H 1
diff --git a/lib/sha256.c b/lib/sha256.c
index c0fb8beecfe..449a9b7b712 100644
--- a/lib/sha256.c
+++ b/lib/sha256.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 /* Written by David Madore, considerably copypasting from
    Scott G. Miller's sha1.c
diff --git a/lib/sha256.h b/lib/sha256.h
index 348b76ef265..b998aa4b634 100644
--- a/lib/sha256.h
+++ b/lib/sha256.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef SHA256_H
 # define SHA256_H 1
diff --git a/lib/sha512.c b/lib/sha512.c
index dbde67183b7..e666231148e 100644
--- a/lib/sha512.c
+++ b/lib/sha512.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 /* Written by David Madore, considerably copypasting from
    Scott G. Miller's sha1.c
diff --git a/lib/sha512.h b/lib/sha512.h
index 4460e6c9b76..70a3f9ad6cb 100644
--- a/lib/sha512.h
+++ b/lib/sha512.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef SHA512_H
 # define SHA512_H 1
diff --git a/lib/sig2str.c b/lib/sig2str.c
index c50c612b397..a3ed970063e 100644
--- a/lib/sig2str.c
+++ b/lib/sig2str.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/sig2str.h b/lib/sig2str.h
index 9bec78ed6af..4e43ea404c1 100644
--- a/lib/sig2str.h
+++ b/lib/sig2str.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/signal.in.h b/lib/signal.in.h
index 1ffba37e239..1d8ebfa57e7 100644
--- a/lib/signal.in.h
+++ b/lib/signal.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/stat-time.h b/lib/stat-time.h
index 9e45e855655..47a3bf8f21e 100644
--- a/lib/stat-time.h
+++ b/lib/stat-time.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/stdalign.in.h b/lib/stdalign.in.h
index ea248231701..68e889e053c 100644
--- a/lib/stdalign.in.h
+++ b/lib/stdalign.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert and Bruno Haible.  */
 
@@ -53,7 +53,7 @@
 #undef _Alignof
 
 /* GCC releases before GCC 4.9 had a bug in _Alignof.  See GCC bug 52023
-   <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
+   <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
 #if (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 \
      || (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9)))
 # ifdef __cplusplus
diff --git a/lib/stddef.in.h b/lib/stddef.in.h
index 16e72bd1e0d..758ccf63386 100644
--- a/lib/stddef.in.h
+++ b/lib/stddef.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Eric Blake.  */
 
diff --git a/lib/stdint.in.h b/lib/stdint.in.h
index 5fbec34310f..df8b37d3d49 100644
--- a/lib/stdint.in.h
+++ b/lib/stdint.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /*
  * ISO C 99 <stdint.h> for platforms that lack it.
diff --git a/lib/stdio-impl.h b/lib/stdio-impl.h
index d5b5943fd7c..0d606c19c84 100644
--- a/lib/stdio-impl.h
+++ b/lib/stdio-impl.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* Many stdio implementations have the same logic and therefore can share
    the same implementation of stdio extension API, except that some fields
diff --git a/lib/stdio.in.h b/lib/stdio.in.h
index b714c54a544..5cf31319d9f 100644
--- a/lib/stdio.in.h
+++ b/lib/stdio.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index ef41c992df5..d5fa02b57ab 100644
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/stpcpy.c b/lib/stpcpy.c
index 154d95f89eb..079599db868 100644
--- a/lib/stpcpy.c
+++ b/lib/stpcpy.c
@@ -16,7 +16,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/strftime.h b/lib/strftime.h
index 27a8d624125..9d91e5139cd 100644
--- a/lib/strftime.h
+++ b/lib/strftime.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #include <time.h>
 
diff --git a/lib/string.in.h b/lib/string.in.h
index aaff5638d0f..0e0e0c51f5e 100644
--- a/lib/string.in.h
+++ b/lib/string.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/strtoimax.c b/lib/strtoimax.c
index 3f31fe913ad..f7d46f040d7 100644
--- a/lib/strtoimax.c
+++ b/lib/strtoimax.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert. */
 
diff --git a/lib/strtol.c b/lib/strtol.c
index 751d1e0f1e8..1ef88700fca 100644
--- a/lib/strtol.c
+++ b/lib/strtol.c
@@ -17,7 +17,7 @@
    GNU 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/>.  */
 
 #ifdef _LIBC
 # define USE_NUMBER_GROUPING
diff --git a/lib/strtoll.c b/lib/strtoll.c
index d770e81db39..f6952f3cd23 100644
--- a/lib/strtoll.c
+++ b/lib/strtoll.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #define QUAD    1
 
diff --git a/lib/symlink.c b/lib/symlink.c
index 60d4c14feab..427f1f5f00c 100644
--- a/lib/symlink.c
+++ b/lib/symlink.c
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #include <config.h>
 
diff --git a/lib/sys_select.in.h b/lib/sys_select.in.h
index 616e77dd4cf..3bda2122277 100644
--- a/lib/sys_select.in.h
+++ b/lib/sys_select.in.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 # if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/sys_stat.in.h b/lib/sys_stat.in.h
index 1831740900b..f0919e90d5c 100644
--- a/lib/sys_stat.in.h
+++ b/lib/sys_stat.in.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 /* Written by Eric Blake, Paul Eggert, and Jim Meyering.  */
 
diff --git a/lib/sys_time.in.h b/lib/sys_time.in.h
index 57739bc4c56..8a3c87d11d8 100644
--- a/lib/sys_time.in.h
+++ b/lib/sys_time.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/sys_types.in.h b/lib/sys_types.in.h
index 3cea44884e3..b0d6132a163 100644
--- a/lib/sys_types.in.h
+++ b/lib/sys_types.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/tempname.c b/lib/tempname.c
index c274b8dd4e1..2e3f95f3fb1 100644
--- a/lib/tempname.c
+++ b/lib/tempname.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Extracted from glibc sysdeps/posix/tempname.c.  See also tmpdir.c.  */
 
diff --git a/lib/tempname.h b/lib/tempname.h
index 1ca97484fb4..245c8161abe 100644
--- a/lib/tempname.h
+++ b/lib/tempname.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* header written by Eric Blake */
 
diff --git a/lib/time-internal.h b/lib/time-internal.h
index bf22834b2e1..8caf11d8746 100644
--- a/lib/time-internal.h
+++ b/lib/time-internal.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
+   with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/time.in.h b/lib/time.in.h
index f0c7ef86667..d210fbf80b1 100644
--- a/lib/time.in.h
+++ b/lib/time.in.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
diff --git a/lib/time_r.c b/lib/time_r.c
index 708a98b3241..8cf8329fe5d 100644
--- a/lib/time_r.c
+++ b/lib/time_r.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
+   with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/time_rz.c b/lib/time_rz.c
index 17bc11c20e9..ad02edb23cb 100644
--- a/lib/time_rz.c
+++ b/lib/time_rz.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
+   with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/timegm.c b/lib/timegm.c
index 957a3b830c9..1cabf648264 100644
--- a/lib/timegm.c
+++ b/lib/timegm.c
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #ifndef _LIBC
 # include <config.h>
diff --git a/lib/timespec-add.c b/lib/timespec-add.c
index e6c87c65683..faa45829445 100644
--- a/lib/timespec-add.c
+++ b/lib/timespec-add.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/timespec-sub.c b/lib/timespec-sub.c
index 5d9276dd0f7..3872f1bc2db 100644
--- a/lib/timespec-sub.c
+++ b/lib/timespec-sub.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/timespec.h b/lib/timespec.h
index f5d823aefe9..3831301578e 100644
--- a/lib/timespec.h
+++ b/lib/timespec.h
@@ -14,7 +14,7 @@
    GNU 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/>.  */
 
 #if ! defined TIMESPEC_H
 # define TIMESPEC_H
diff --git a/lib/u64.h b/lib/u64.h
index a8601932a13..f56cc382339 100644
--- a/lib/u64.h
+++ b/lib/u64.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/unistd.in.h b/lib/unistd.in.h
index f366caffa55..8a383b3d016 100644
--- a/lib/unistd.in.h
+++ b/lib/unistd.in.h
@@ -12,7 +12,7 @@
    GNU 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/>.  */
 
 #ifndef _@GUARD_PREFIX@_UNISTD_H
 
diff --git a/lib/unlocked-io.h b/lib/unlocked-io.h
index aaf60a0fb4e..be5d2b5d847 100644
--- a/lib/unlocked-io.h
+++ b/lib/unlocked-io.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Jim Meyering.  */
 
diff --git a/lib/utimens.c b/lib/utimens.c
index ff4eab073c1..a5716ac8105 100644
--- a/lib/utimens.c
+++ b/lib/utimens.c
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/utimens.h b/lib/utimens.h
index 4d9c18edad1..f1dd9884dc1 100644
--- a/lib/utimens.h
+++ b/lib/utimens.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/lib/verify.h b/lib/verify.h
index dcba9c8cb0a..e0b48613374 100644
--- a/lib/verify.h
+++ b/lib/verify.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 /* Written by Paul Eggert, Bruno Haible, and Jim Meyering.  */
 
diff --git a/lib/vla.h b/lib/vla.h
index 5bbf56bb398..59de9a6bcd6 100644
--- a/lib/vla.h
+++ b/lib/vla.h
@@ -13,7 +13,7 @@
    GNU 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/>.
 
    Written by Paul Eggert.  */
 
diff --git a/lib/warn-on-use.h b/lib/warn-on-use.h
index 3c0eb579fa2..cae8c3eec5c 100644
--- a/lib/warn-on-use.h
+++ b/lib/warn-on-use.h
@@ -12,7 +12,7 @@
    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/>.  */
 
 /* _GL_WARN_ON_USE (function, "literal string") issues a declaration
    for FUNCTION which will then trigger a compiler warning containing
diff --git a/lib/xalloc-oversized.h b/lib/xalloc-oversized.h
index 2e09bab0be2..ae4fbc77f98 100644
--- a/lib/xalloc-oversized.h
+++ b/lib/xalloc-oversized.h
@@ -13,7 +13,7 @@
    GNU 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/>.  */
 
 #ifndef XALLOC_OVERSIZED_H_
 #define XALLOC_OVERSIZED_H_
diff --git a/m4/getgroups.m4 b/m4/getgroups.m4
index 02ce2353ca4..17f7409944e 100644
--- a/m4/getgroups.m4
+++ b/m4/getgroups.m4
@@ -12,7 +12,7 @@ dnl A wrapper around AC_FUNC_GETGROUPS.
 m4_version_prereq([2.70], [] ,[
 
 # This is taken from the following Autoconf patch:
-# http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
+# https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
 AC_DEFUN([AC_FUNC_GETGROUPS],
 [
   AC_REQUIRE([AC_TYPE_GETGROUPS])dnl
diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4
index 13504a8ca20..c5517529f09 100644
--- a/m4/gnulib-comp.m4
+++ b/m4/gnulib-comp.m4
@@ -12,7 +12,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
+# along with this file.  If not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License,
 # this file may be distributed as part of a program that
diff --git a/m4/std-gnu11.m4 b/m4/std-gnu11.m4
index 9dae9b1ccf1..bd34aa1a268 100644
--- a/m4/std-gnu11.m4
+++ b/m4/std-gnu11.m4
@@ -20,7 +20,7 @@
 # GNU 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/>.
 
 # Written by David MacKenzie, with help from
 # Akim Demaille, Paul Eggert,
diff --git a/m4/stdalign.m4 b/m4/stdalign.m4
index 0652a1e4af5..f091aa58c29 100644
--- a/m4/stdalign.m4
+++ b/m4/stdalign.m4
@@ -18,7 +18,7 @@ AC_DEFUN([gl_STDALIGN_H],
 
             /* Test that alignof yields a result consistent with offsetof.
                This catches GCC bug 52023
-               <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
+               <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
             #ifdef __cplusplus
                template <class t> struct alignof_helper { char a; t b; };
             # define ao(type) offsetof (alignof_helper<type>, b)