147 files changed, 149 insertions, 434 deletions

diff --git a/lib/Makefile.in b/lib/Makefile.in
index ee41ea3e55e..1f5b154f355 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+# along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 srcdir = @srcdir@
 VPATH = @srcdir@
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_.h b/lib/getopt_.h
deleted file mode 100644
index 7c77a1c8d4f..00000000000
--- a/lib/getopt_.h
+++ /dev/null
@@ -1,285 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989-1994, 1996-1999, 2001, 2003-2007, 2009-2017 Free
-   Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   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/>.  */
-
-#ifndef _GL_GETOPT_H
-
-#if __GNUC__ >= 3
-#pragma GCC system_header
-#endif
-
-
-/* The include_next requires a split double-inclusion guard.  We must
-   also inform the replacement unistd.h to not recursively use
-   <getopt.h>; our definitions will be present soon enough.  */
-#if HAVE_GETOPT_H
-# define _GL_SYSTEM_GETOPT
-# ifndef __GNUC__
-# include <next_getopt.h>
-# else
-# include_next <getopt.h>
-# endif
-# undef _GL_SYSTEM_GETOPT
-#endif
-
-#ifndef _GL_GETOPT_H
-
-#ifndef __need_getopt
-# define _GL_GETOPT_H 1
-#endif
-
-/* Standalone applications should #define __GETOPT_PREFIX to an
-   identifier that prefixes the external functions and variables
-   defined in this header.  When this happens, include the
-   headers that might declare getopt so that they will not cause
-   confusion if included after this file (if the system had <getopt.h>,
-   we have already included it).  Then systematically rename
-   identifiers so that they do not collide with the system functions
-   and variables.  Renaming avoids problems with some compilers and
-   linkers.  */
-#if defined __GETOPT_PREFIX && !defined __need_getopt
-# if !HAVE_GETOPT_H
-#  define __need_system_stdlib_h
-#  include <stdlib.h>
-#  undef __need_system_stdlib_h
-#  include <stdio.h>
-#  include <unistd.h>
-# endif
-# undef __need_getopt
-# undef getopt
-# undef getopt_long
-# undef getopt_long_only
-# undef optarg
-# undef opterr
-# undef optind
-# undef optopt
-# undef option
-# define __GETOPT_CONCAT(x, y) x ## y
-# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
-# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
-# define getopt __GETOPT_ID (getopt)
-# define getopt_long __GETOPT_ID (getopt_long)
-# define getopt_long_only __GETOPT_ID (getopt_long_only)
-# define optarg __GETOPT_ID (optarg)
-# define opterr __GETOPT_ID (opterr)
-# define optind __GETOPT_ID (optind)
-# define optopt __GETOPT_ID (optopt)
-# define option __GETOPT_ID (option)
-# define _getopt_internal __GETOPT_ID (getopt_internal)
-#endif
-
-/* Standalone applications get correct prototypes for getopt_long and
-   getopt_long_only; they declare "char **argv".  libc uses prototypes
-   with "char *const *argv" that are incorrect because getopt_long and
-   getopt_long_only can permute argv; this is required for backward
-   compatibility (e.g., for LSB 2.0.1).
-
-   This used to be '#if defined __GETOPT_PREFIX && !defined __need_getopt',
-   but it caused redefinition warnings if both unistd.h and getopt.h were
-   included, since unistd.h includes getopt.h having previously defined
-   __need_getopt.
-
-   The only place where __getopt_argv_const is used is in definitions
-   of getopt_long and getopt_long_only below, but these are visible
-   only if __need_getopt is not defined, so it is quite safe to rewrite
-   the conditional as follows:
-*/
-#if !defined __need_getopt
-# if defined __GETOPT_PREFIX
-#  define __getopt_argv_const /* empty */
-# else
-#  define __getopt_argv_const const
-# endif
-#endif
-
-/* If __GNU_LIBRARY__ is not already defined, either we are being used
-   standalone, or this is the first header included in the source file.
-   If we are being used with glibc, we need to include <features.h>, but
-   that does not exist if we are standalone.  So: if __GNU_LIBRARY__ is
-   not defined, include <ctype.h>, which will pull in <features.h> for us
-   if it's from glibc.  (Why ctype.h?  It's guaranteed to exist and it
-   doesn't flood the namespace with stuff the way some other headers do.)  */
-#if !defined __GNU_LIBRARY__
-# include <ctype.h>
-#endif
-
-#ifndef __THROW
-# ifndef __GNUC_PREREQ
-#  define __GNUC_PREREQ(maj, min) (0)
-# endif
-# if defined __cplusplus && __GNUC_PREREQ (2,8)
-#  define __THROW       throw ()
-# else
-#  define __THROW
-# endif
-#endif
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-/* A C macro for declaring that specific arguments must not be NULL.
-   Copyright (C) 2009-2017 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   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/>.  */
-
-/* _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.
-   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
-#ifndef _GL_ARG_NONNULL
-# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
-#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
-# else
-#  define _GL_ARG_NONNULL(params)
-# endif
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* For communication from 'getopt' to the caller.
-   When 'getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when 'ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to 'getopt'.
-
-   On entry to 'getopt', zero means this is the first call; initialize.
-
-   When 'getopt' returns -1, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, 'optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message 'getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-#ifndef __need_getopt
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of 'struct option' terminated by an element containing a name which is
-   zero.
-
-   The field 'has_arg' is:
-   no_argument          (or 0) if the option does not take an argument,
-   required_argument    (or 1) if the option requires an argument,
-   optional_argument    (or 2) if the option takes an optional argument.
-
-   If the field 'flag' is not NULL, it points to a variable that is set
-   to the value given in the field 'val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an 'int' to
-   a compiled-in constant, such as set a value from 'optarg', set the
-   option's 'flag' field to zero and its 'val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero 'flag' field, 'getopt'
-   returns the contents of the 'val' field.  */
-
-# if !GNULIB_defined_struct_option
-struct option
-{
-  const char *name;
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-#  define GNULIB_defined_struct_option 1
-# endif
-
-/* Names for the values of the 'has_arg' field of 'struct option'.  */
-
-# define no_argument            0
-# define required_argument      1
-# define optional_argument      2
-#endif  /* need getopt */
-
-
-/* Get definitions and prototypes for functions to process the
-   arguments in ARGV (ARGC of them, minus the program name) for
-   options given in OPTS.
-
-   Return the option character from OPTS just read.  Return -1 when
-   there are no more options.  For unrecognized options, or options
-   missing arguments, 'optopt' is set to the option letter, and '?' is
-   returned.
-
-   The OPTS string is a list of characters which are recognized option
-   letters, optionally followed by colons, specifying that that letter
-   takes an argument, to be placed in 'optarg'.
-
-   If a letter in OPTS is followed by two colons, its argument is
-   optional.  This behavior is specific to the GNU 'getopt'.
-
-   The argument '--' causes premature termination of argument
-   scanning, explicitly telling 'getopt' that there are no more
-   options.
-
-   If OPTS begins with '-', then non-option arguments are treated as
-   arguments to the option '\1'.  This behavior is specific to the GNU
-   'getopt'.  If OPTS begins with '+', or POSIXLY_CORRECT is set in
-   the environment, then do not permute arguments.  */
-
-extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
-       __THROW _GL_ARG_NONNULL ((2, 3));
-
-#ifndef __need_getopt
-extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv,
-                        const char *__shortopts,
-                        const struct option *__longopts, int *__longind)
-       __THROW _GL_ARG_NONNULL ((2, 3));
-extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
-                             const char *__shortopts,
-                             const struct option *__longopts, int *__longind)
-       __THROW _GL_ARG_NONNULL ((2, 3));
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-/* Make sure we later can get all the definitions and declarations.  */
-#undef __need_getopt
-
-#endif /* _GL_GETOPT_H */
-#endif /* _GL_GETOPT_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/save-cwd.c b/lib/save-cwd.c
index c1de48e87de..fbd944bb722 100644
--- a/lib/save-cwd.c
+++ b/lib/save-cwd.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/>.  */
 
 /* Gnulib needs to save and restore the current working directory to
    fully emulate functions like fstatat.  But Emacs doesn't care what
diff --git a/lib/save-cwd.h b/lib/save-cwd.h
index d066a0e5644..577bc35dc07 100644
--- a/lib/save-cwd.h
+++ b/lib/save-cwd.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/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_