Prefer HTTPS to FTP and HTTP in documentation

Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.

178 files changed, 200 insertions, 201 deletions

diff --git a/src/.gdbinit b/src/.gdbinit
index 21cdca5b2c0..60f6348715c 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+# along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 # Force loading of symbols, enough to give us VALBITS etc.
 set $dummy = main + 8
diff --git a/src/Makefile.in b/src/Makefile.in
index a98ad9c5ebd..0e55ad4bb29 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+# along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 
 # Note that this file is edited by msdos/sed1v2.inp for MSDOS.  That
diff --git a/src/README b/src/README
index fef2ff4e9e1..4790c04141b 100644
--- a/src/README
+++ b/src/README
@@ -27,4 +27,4 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
diff --git a/src/alloc.c b/src/alloc.c
index 300f5e420d3..87e9ef0059b 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/atimer.c b/src/atimer.c
index 5feb1f6777d..0abd6c19c3a 100644
--- a/src/atimer.c
+++ b/src/atimer.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/atimer.h b/src/atimer.h
index 30a5856ffdf..fb85193d829 100644
--- a/src/atimer.h
+++ b/src/atimer.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_ATIMER_H
 #define EMACS_ATIMER_H
diff --git a/src/bidi.c b/src/bidi.c
index 763797488b0..fd73b548376 100644
--- a/src/bidi.c
+++ b/src/bidi.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Written by Eli Zaretskii <eliz@gnu.org>.
 
diff --git a/src/blockinput.h b/src/blockinput.h
index d57c5bae2af..1ca3b47c96b 100644
--- a/src/blockinput.h
+++ b/src/blockinput.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_BLOCKINPUT_H
 #define EMACS_BLOCKINPUT_H
diff --git a/src/buffer.c b/src/buffer.c
index f2689b61fdb..bc28ac7d1aa 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/buffer.h b/src/buffer.h
index 46ca6aa7384..ac7c5a54679 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_BUFFER_H
 #define EMACS_BUFFER_H
diff --git a/src/bytecode.c b/src/bytecode.c
index a473dfb9c8c..50c7abe2891 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/callint.c b/src/callint.c
index 96436116c8b..105ec071d07 100644
--- a/src/callint.c
+++ b/src/callint.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/callproc.c b/src/callproc.c
index b93d361a947..9375ce5312c 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/casefiddle.c b/src/casefiddle.c
index 443d62b6259..8f564edeb95 100644
--- a/src/casefiddle.c
+++ b/src/casefiddle.c
@@ -17,7 +17,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/casetab.c b/src/casetab.c
index 6108bb680bb..924bf9a527f 100644
--- a/src/casetab.c
+++ b/src/casetab.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/category.c b/src/category.c
index b633f65532a..eced906584e 100644
--- a/src/category.c
+++ b/src/category.c
@@ -22,7 +22,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* Here we handle three objects: category, category set, and category
diff --git a/src/category.h b/src/category.h
index 247f9093d09..c4feedd358f 100644
--- a/src/category.h
+++ b/src/category.h
@@ -20,7 +20,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_CATEGORY_H
 #define EMACS_CATEGORY_H
diff --git a/src/ccl.c b/src/ccl.c
index b2caf413f7a..dc7afc5ef6f 100644
--- a/src/ccl.c
+++ b/src/ccl.c
@@ -21,7 +21,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
@@ -730,7 +730,7 @@ while (0)
 #endif
 
 /* Use "&" rather than "&&" to suppress a bogus GCC warning; see
-   <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43772>.  */
+   <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43772>.  */
 #define ASCENDING_ORDER(lo, med, hi) (((lo) <= (med)) & ((med) <= (hi)))
 
 #define GET_CCL_RANGE(var, ccl_prog, ic, lo, hi)                \
diff --git a/src/ccl.h b/src/ccl.h
index 10860f509d4..8eb9d7eb2e8 100644
--- a/src/ccl.h
+++ b/src/ccl.h
@@ -20,7 +20,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #ifndef EMACS_CCL_H
diff --git a/src/character.c b/src/character.c
index 1c6020ee468..c8ffa2b2cd5 100644
--- a/src/character.c
+++ b/src/character.c
@@ -20,7 +20,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* At first, see the document in `character.h' to understand the code
    in this file.  */
diff --git a/src/character.h b/src/character.h
index b073a0dd1e4..c716885d46b 100644
--- a/src/character.h
+++ b/src/character.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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_CHARACTER_H
 #define EMACS_CHARACTER_H
diff --git a/src/charset.c b/src/charset.c
index 6ce2f902c81..ab207eaa1b6 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -24,7 +24,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/charset.h b/src/charset.h
index a26d64343d7..2b6875ce3fc 100644
--- a/src/charset.h
+++ b/src/charset.h
@@ -22,7 +22,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_CHARSET_H
 #define EMACS_CHARSET_H
diff --git a/src/chartab.c b/src/chartab.c
index 8392c0c07dc..065ae4f9f20 100644
--- a/src/chartab.c
+++ b/src/chartab.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/cm.c b/src/cm.c
index 9a90f37445c..f3f41549b27 100644
--- a/src/cm.c
+++ b/src/cm.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/cm.h b/src/cm.h
index 83ef512c99d..1002672db7b 100644
--- a/src/cm.h
+++ b/src/cm.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_CM_H
 #define EMACS_CM_H
diff --git a/src/cmds.c b/src/cmds.c
index 6f2db8696e9..e4c0c866916 100644
--- a/src/cmds.c
+++ b/src/cmds.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/coding.c b/src/coding.c
index 50ad206be69..d790ad08ea9 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -21,7 +21,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*** TABLE OF CONTENTS ***
 
diff --git a/src/coding.h b/src/coding.h
index 8ed851d99ff..66d125b07e6 100644
--- a/src/coding.h
+++ b/src/coding.h
@@ -21,7 +21,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_CODING_H
 #define EMACS_CODING_H
diff --git a/src/commands.h b/src/commands.h
index 03e1b73e981..5dc1100294e 100644
--- a/src/commands.h
+++ b/src/commands.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_COMMANDS_H
 #define EMACS_COMMANDS_H
diff --git a/src/composite.c b/src/composite.c
index 05a296329a6..c01e2e3b95c 100644
--- a/src/composite.c
+++ b/src/composite.c
@@ -20,7 +20,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/composite.h b/src/composite.h
index dc1e7ce3457..7f0cc1cd350 100644
--- a/src/composite.h
+++ b/src/composite.h
@@ -20,7 +20,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_COMPOSITE_H
 #define EMACS_COMPOSITE_H
diff --git a/src/conf_post.h b/src/conf_post.h
index e1d6a9397d3..096a6779971 100644
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Put the code here rather than in configure.ac using AH_BOTTOM.
    This way, the code does not get processed by autoheader.  For
diff --git a/src/data.c b/src/data.c
index c9818b6b20f..feca0a6f376 100644
--- a/src/data.c
+++ b/src/data.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/dbusbind.c b/src/dbusbind.c
index 0d9d3e514fd..4a7068416fe 100644
--- a/src/dbusbind.c
+++ b/src/dbusbind.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/decompress.c b/src/decompress.c
index a53a66df187..12b1f6ca094 100644
--- a/src/decompress.c
+++ b/src/decompress.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/deps.mk b/src/deps.mk
index b56d880da86..a94d198b849 100644
--- a/src/deps.mk
+++ b/src/deps.mk
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+## along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 ## Commentary:
 ##
diff --git a/src/dired.c b/src/dired.c
index 128493aff28..28d1cffb44c 100644
--- a/src/dired.c
+++ b/src/dired.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/dispextern.h b/src/dispextern.h
index 1df769a8f99..2f55d8cbc87 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* New redisplay written by Gerd Moellmann <gerd@gnu.org>.  */
 
diff --git a/src/dispnew.c b/src/dispnew.c
index 93ef6a55a2e..2d1df546982 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/disptab.h b/src/disptab.h
index cdfb080dff7..592a1fa0180 100644
--- a/src/disptab.h
+++ b/src/disptab.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Access the slots of a display-table, according to their purpose.  */
 
diff --git a/src/doc.c b/src/doc.c
index 345e18b9186..3286c12675a 100644
--- a/src/doc.c
+++ b/src/doc.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
@@ -538,7 +538,7 @@ the same file name is found in the `doc-directory'.  */)
   char const *dirname;
   ptrdiff_t dirlen;
   /* Preloaded defcustoms using custom-initialize-delay are added to
-     this list, but kept unbound.  See http://debbugs.gnu.org/11565  */
+     this list, but kept unbound.  See https://debbugs.gnu.org/11565  */
   Lisp_Object delayed_init =
     find_symbol_value (intern ("custom-delayed-init-variables"));
 
diff --git a/src/doprnt.c b/src/doprnt.c
index 418601acb02..89d7e99deb4 100644
--- a/src/doprnt.c
+++ b/src/doprnt.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* If you think about replacing this with some similar standard C function of
    the printf family (such as vsnprintf), please note that this function
diff --git a/src/dynlib.c b/src/dynlib.c
index 47ba5e3d91b..a6d70484fc6 100644
--- a/src/dynlib.c
+++ b/src/dynlib.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* Assume modules are enabled on modern systems...  *Yes*, the
diff --git a/src/dynlib.h b/src/dynlib.h
index 1d53b8e5b2f..5669995624a 100644
--- a/src/dynlib.h
+++ b/src/dynlib.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef DYNLIB_H
 #define DYNLIB_H
diff --git a/src/editfns.c b/src/editfns.c
index d54c9c1abaf..b03eb947dec 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/emacs-icon.h b/src/emacs-icon.h
index b5ba89e15f3..f126458e9db 100644
--- a/src/emacs-icon.h
+++ b/src/emacs-icon.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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Note that the GTK port uses gdk to display the icon, so Emacs need
    not have XPM support compiled in.  */
diff --git a/src/emacs-module.c b/src/emacs-module.c
index ad6c8fb0104..e5833a1d1f0 100644
--- a/src/emacs-module.c
+++ b/src/emacs-module.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/emacs-module.h.in b/src/emacs-module.h.in
index 40b6448d27e..d83cd430141 100644
--- a/src/emacs-module.h.in
+++ b/src/emacs-module.h.in
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_MODULE_H
 #define EMACS_MODULE_H
diff --git a/src/emacs.c b/src/emacs.c
index 668711a5ab9..1ad8af70a74 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #define INLINE EXTERN_INLINE
 #include <config.h>
diff --git a/src/emacsgtkfixed.c b/src/emacsgtkfixed.c
index 75cb3c1c727..1a00e0f6806 100644
--- a/src/emacsgtkfixed.c
+++ b/src/emacsgtkfixed.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/emacsgtkfixed.h b/src/emacsgtkfixed.h
index 776ac453c01..8f2acd6bba3 100644
--- a/src/emacsgtkfixed.h
+++ b/src/emacsgtkfixed.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACSGTKFIXED_H
 #define EMACSGTKFIXED_H
diff --git a/src/epaths.in b/src/epaths.in
index c491d3b72e7..8f77b0a14fc 100644
--- a/src/epaths.in
+++ b/src/epaths.in
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* Together with PATH_SITELOADSEARCH, this gives the default value of
@@ -75,4 +75,3 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Where Emacs should look for the application default file. */
 #define PATH_X_DEFAULTS "/usr/lib/X11/%L/%T/%N%C%S:/usr/lib/X11/%l/%T/%N%C%S:/usr/lib/X11/%T/%N%C%S:/usr/lib/X11/%L/%T/%N%S:/usr/lib/X11/%l/%T/%N%S:/usr/lib/X11/%T/%N%S"
-
diff --git a/src/eval.c b/src/eval.c
index a6612b93e25..62e219631db 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/fileio.c b/src/fileio.c
index 3195348a8ce..adb3534532c 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <limits.h>
@@ -2046,7 +2046,7 @@ permissions.  */)
     {
       /* Set the modified context back to the file.  */
       bool fail = fsetfilecon (ofd, con) != 0;
-      /* See http://debbugs.gnu.org/11245 for ENOTSUP.  */
+      /* See https://debbugs.gnu.org/11245 for ENOTSUP.  */
       if (fail && errno != ENOTSUP)
         report_file_error ("Doing fsetfilecon", newname);
 
@@ -2943,7 +2943,7 @@ or if Emacs was not compiled with SELinux support.  */)
           fail = (lsetfilecon (SSDATA (encoded_absname),
                                context_str (parsed_con))
                   != 0);
-          /* See http://debbugs.gnu.org/11245 for ENOTSUP.  */
+          /* See https://debbugs.gnu.org/11245 for ENOTSUP.  */
           if (fail && errno != ENOTSUP)
             report_file_error ("Doing lsetfilecon", absname);
 
diff --git a/src/filelock.c b/src/filelock.c
index fd4f0aa864e..a8bc17c37b6 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -19,7 +19,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/firstfile.c b/src/firstfile.c
index c952e38aa6a..43f45f2bef5 100644
--- a/src/firstfile.c
+++ b/src/firstfile.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/floatfns.c b/src/floatfns.c
index 47553f27e82..47e94b8c862 100644
--- a/src/floatfns.c
+++ b/src/floatfns.c
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* C89 requires only the following math.h functions, and Emacs omits
diff --git a/src/fns.c b/src/fns.c
index ef9a1758d60..13d235965e2 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/font.c b/src/font.c
index a5e5b6a5b9d..51625b49fa8 100644
--- a/src/font.c
+++ b/src/font.c
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <float.h>
diff --git a/src/font.h b/src/font.h
index 53e3fc21a3d..8f2e27f0edd 100644
--- a/src/font.h
+++ b/src/font.h
@@ -17,7 +17,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_FONT_H
 #define EMACS_FONT_H
diff --git a/src/fontset.c b/src/fontset.c
index 74018060b85..35586ad5c7d 100644
--- a/src/fontset.c
+++ b/src/fontset.c
@@ -22,7 +22,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/fontset.h b/src/fontset.h
index 8bf9f754fbd..cd6709dac2a 100644
--- a/src/fontset.h
+++ b/src/fontset.h
@@ -21,7 +21,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_FONTSET_H
 #define EMACS_FONTSET_H
diff --git a/src/frame.c b/src/frame.c
index 6e0c51b2f5f..39e5cc9c854 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
@@ -1913,7 +1913,7 @@ delete_frame (Lisp_Object frame, Lisp_Object force)
 
       /* Look for another visible frame on the same terminal.
          Do not call next_frame here because it may loop forever.
-         See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15025.  */
+         See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=15025.  */
       FOR_EACH_FRAME (tail, frame1)
         if (!EQ (frame, frame1)
             && (FRAME_TERMINAL (XFRAME (frame))
diff --git a/src/frame.h b/src/frame.h
index 4b7e448b543..d1c21da4d2a 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_FRAME_H
 #define EMACS_FRAME_H
diff --git a/src/fringe.c b/src/fringe.c
index 5d3108a6c70..087ef33434d 100644
--- a/src/fringe.c
+++ b/src/fringe.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/ftcrfont.c b/src/ftcrfont.c
index 9b592e6a740..ad68ce8cebb 100644
--- a/src/ftcrfont.c
+++ b/src/ftcrfont.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/ftfont.c b/src/ftfont.c
index 5600bde646d..35f59233761 100644
--- a/src/ftfont.c
+++ b/src/ftfont.c
@@ -17,7 +17,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/ftfont.h b/src/ftfont.h
index 90abb452950..4201b2c2d67 100644
--- a/src/ftfont.h
+++ b/src/ftfont.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #ifndef EMACS_FTFONT_H
diff --git a/src/ftxfont.c b/src/ftxfont.c
index 8c829bb8f9c..3b27da67435 100644
--- a/src/ftxfont.c
+++ b/src/ftxfont.c
@@ -17,7 +17,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/getpagesize.h b/src/getpagesize.h
index 75b25b88987..951973033da 100644
--- a/src/getpagesize.h
+++ b/src/getpagesize.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef HAVE_GETPAGESIZE
 
diff --git a/src/gfilenotify.c b/src/gfilenotify.c
index fa4854c664d..13a3eae772a 100644
--- a/src/gfilenotify.c
+++ b/src/gfilenotify.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/gmalloc.c b/src/gmalloc.c
index baaff58050f..2bda95ebd3d 100644
--- a/src/gmalloc.c
+++ b/src/gmalloc.c
@@ -14,7 +14,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
@@ -308,7 +308,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
@@ -965,7 +965,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
@@ -1275,7 +1275,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
@@ -1445,7 +1445,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
@@ -1483,7 +1483,7 @@ 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 the GNU C Library.  If not, see <http://www.gnu.org/licenses/>.  */
+along with the GNU C Library.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* uClibc defines __GNU_LIBRARY__, but it is not completely
    compatible.  */
@@ -1530,7 +1530,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.  */
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.  */
 
 void *
 aligned_alloc (size_t alignment, size_t size)
@@ -1662,7 +1662,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
@@ -1847,7 +1847,7 @@ 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 library.  If not, see <http://www.gnu.org/licenses/>.
+License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
    The author may be reached (Email) at the address mike@ai.mit.edu,
    or (US mail) as Mike Haertel c/o Free Software Foundation.  */
diff --git a/src/gnutls.c b/src/gnutls.c
index 188f995979e..d7a1399f106 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <errno.h>
@@ -554,7 +554,7 @@ emacs_gnutls_nonblock_errno (gnutls_transport_ptr_t ptr)
     {
 #  ifdef _AIX
       /* This is taken from the GnuTLS system_errno function circa 2016;
-         see <http://savannah.gnu.org/support/?107464>.  */
+         see <https://savannah.gnu.org/support/?107464>.  */
     case 0:
       errno = EAGAIN;
       /* Fall through.  */
@@ -1355,7 +1355,7 @@ gnutls_verify_boot (Lisp_Object proc, Lisp_Object proplist)
   c_hostname = SSDATA (hostname);
 
   /* Now verify the peer, following
-     http://www.gnu.org/software/gnutls/manual/html_node/Verifying-peer_0027s-certificate.html.
+     https://www.gnu.org/software/gnutls/manual/html_node/Verifying-peer_0027s-certificate.html.
      The peer should present at least one certificate in the chain; do a
      check of the certificate's hostname with
      gnutls_x509_crt_check_hostname against :hostname.  */
diff --git a/src/gnutls.h b/src/gnutls.h
index 9323cd1aeff..00fa55b6c04 100644
--- a/src/gnutls.h
+++ b/src/gnutls.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_GNUTLS_DEFINED
 #define EMACS_GNUTLS_DEFINED
diff --git a/src/gtkutil.c b/src/gtkutil.c
index a2e322b1dac..0203a5d5c1a 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/gtkutil.h b/src/gtkutil.h
index f0f2981418c..f71f4bb0eda 100644
--- a/src/gtkutil.h
+++ b/src/gtkutil.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef GTKUTIL_H
 #define GTKUTIL_H
diff --git a/src/image.c b/src/image.c
index 7f5cf1a9669..3dac7086cb4 100644
--- a/src/image.c
+++ b/src/image.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
@@ -7148,7 +7148,7 @@ tiff_size_of_memory (thandle_t data)
 
 /* GCC 3.x on x86 Windows targets has a bug that triggers an internal
    compiler error compiling tiff_handler, see Bugzilla bug #17406
-   (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17406).  Declaring
+   (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=17406).  Declaring
    this function as external works around that problem.  */
 # if defined (__MINGW32__) && __GNUC__ == 3
 #  define MINGW_STATIC
diff --git a/src/indent.c b/src/indent.c
index d76ac028d5b..26507b5eb5b 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/indent.h b/src/indent.h
index 42ae1260bc3..27a3c583882 100644
--- a/src/indent.h
+++ b/src/indent.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_INDENT_H
 #define EMACS_INDENT_H
diff --git a/src/inotify.c b/src/inotify.c
index 3d5d3d2621f..c0fc1db1570 100644
--- a/src/inotify.c
+++ b/src/inotify.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/insdel.c b/src/insdel.c
index 0a2e07a343f..5dfc62843a7 100644
--- a/src/insdel.c
+++ b/src/insdel.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/intervals.c b/src/intervals.c
index e65c22977ed..e711212d744 100644
--- a/src/intervals.c
+++ b/src/intervals.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* NOTES:
diff --git a/src/intervals.h b/src/intervals.h
index 9140e0c17ab..7dec6e5c765 100644
--- a/src/intervals.h
+++ b/src/intervals.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_INTERVALS_H
 #define EMACS_INTERVALS_H
diff --git a/src/keyboard.c b/src/keyboard.c
index 97069a24acc..4db50be855c 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/keyboard.h b/src/keyboard.h
index 2219c011352..a2a5f8f21d9 100644
--- a/src/keyboard.h
+++ b/src/keyboard.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_KEYBOARD_H
 #define EMACS_KEYBOARD_H
diff --git a/src/keymap.c b/src/keymap.c
index db9aa7cbf38..ccf8ce79175 100644
--- a/src/keymap.c
+++ b/src/keymap.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Old BUGS:
    - [M-C-a] != [?\M-\C-a]
diff --git a/src/keymap.h b/src/keymap.h
index af0affbc849..2a1945a80a8 100644
--- a/src/keymap.h
+++ b/src/keymap.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef KEYMAP_H
 #define KEYMAP_H
diff --git a/src/kqueue.c b/src/kqueue.c
index 30922ef28b1..221b0032d82 100644
--- a/src/kqueue.c
+++ b/src/kqueue.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/lastfile.c b/src/lastfile.c
index f146602b3a0..2901f148e17 100644
--- a/src/lastfile.c
+++ b/src/lastfile.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* How this works:
diff --git a/src/lcms.c b/src/lcms.c
index 4c3a8b529d7..10c79ae24a0 100644
--- a/src/lcms.c
+++ b/src/lcms.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/lisp.h b/src/lisp.h
index 19594e7830d..40e84ec7ecc 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_LISP_H
 #define EMACS_LISP_H
diff --git a/src/lread.c b/src/lread.c
index dbaadce4b40..6bc93b14817 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Tell globals.h to define tables needed by init_obarray.  */
 #define DEFINE_SYMBOLS
diff --git a/src/macfont.h b/src/macfont.h
index 909336cdbad..5ac604b0be6 100644
--- a/src/macfont.h
+++ b/src/macfont.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 Original author: YAMAMOTO Mitsuharu
 */
diff --git a/src/macfont.m b/src/macfont.m
index 59891353cd3..97879506ba4 100644
--- a/src/macfont.m
+++ b/src/macfont.m
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 Original author: YAMAMOTO Mitsuharu
 */
diff --git a/src/macros.c b/src/macros.c
index f0ffda3f441..b32d73068a9 100644
--- a/src/macros.c
+++ b/src/macros.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/macros.h b/src/macros.h
index 31aece434de..dde3eb0c3f9 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_MACROS_H
 #define EMACS_MACROS_H
diff --git a/src/marker.c b/src/marker.c
index f0c357fec00..2f7e649e9a6 100644
--- a/src/marker.c
+++ b/src/marker.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/menu.c b/src/menu.c
index 99a2ce8f7ef..d569b4b29b5 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/menu.h b/src/menu.h
index 2bb79ee82ce..1469cc87d99 100644
--- a/src/menu.h
+++ b/src/menu.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef MENU_H
 #define MENU_H
diff --git a/src/minibuf.c b/src/minibuf.c
index 010152930bc..a2f3324f99f 100644
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/nsfns.m b/src/nsfns.m
index b00441eb79f..ba363629686 100644
--- a/src/nsfns.m
+++ b/src/nsfns.m
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 Originally by Carl Edman
diff --git a/src/nsfont.m b/src/nsfont.m
index 1bfc3df1469..bcddd724c0d 100644
--- a/src/nsfont.m
+++ b/src/nsfont.m
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 Author: Adrian Robert (arobert@cogsci.ucsd.edu)
 */
@@ -301,7 +301,7 @@ ns_charset_covers(NSCharacterSet *set1, NSCharacterSet *set2, float pct)
     int i, off = 0, tot = 0;
 
     /* Work around what appears to be a GNUstep bug.
-       See <http://bugs.gnu.org/11853>.  */
+       See <https://bugs.gnu.org/11853>.  */
     if (! (bytes1 && bytes2))
       return NO;
 
diff --git a/src/nsgui.h b/src/nsgui.h
index a06eecf688f..e20f3e35e16 100644
--- a/src/nsgui.h
+++ b/src/nsgui.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef __NSGUI_H__
 #define __NSGUI_H__
diff --git a/src/nsimage.m b/src/nsimage.m
index ea2f1ec54ac..9d45b063af1 100644
--- a/src/nsimage.m
+++ b/src/nsimage.m
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 Originally by Carl Edman
diff --git a/src/nsmenu.m b/src/nsmenu.m
index 93e06707c07..6ef7b60dc24 100644
--- a/src/nsmenu.m
+++ b/src/nsmenu.m
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 By Adrian Robert, based on code from original nsmenu.m (Carl Edman,
diff --git a/src/nsselect.m b/src/nsselect.m
index 8b38daeb6cb..067c7788e8b 100644
--- a/src/nsselect.m
+++ b/src/nsselect.m
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 Originally by Carl Edman
diff --git a/src/nsterm.h b/src/nsterm.h
index 65b7a0347ac..de96e0dbcbf 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include "dispextern.h"
diff --git a/src/nsterm.m b/src/nsterm.m
index 001e4576e89..27515335332 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 Originally by Carl Edman
@@ -6076,7 +6076,7 @@ not_in_argv (NSString *arg)
               /*  GNUstep uses incompatible keycodes, even for those that are
                   supposed to be hardware independent.  Just check for delete.
                   Keypad delete does not have keysym 0xFFFF.
-                  See http://savannah.gnu.org/bugs/?25395
+                  See https://savannah.gnu.org/bugs/?25395
               */
               || (fnKeysym == 0xFFFF && code == 127)
 #endif
diff --git a/src/print.c b/src/print.c
index 12edf015892..f280616af8a 100644
--- a/src/print.c
+++ b/src/print.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/process.c b/src/process.c
index c45a3f63ce5..b941b5c1f9c 100644
--- a/src/process.c
+++ b/src/process.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
@@ -142,7 +142,7 @@ extern int sys_select (int, fd_set *, fd_set *, fd_set *,
 #endif
 
 /* Work around GCC 4.3.0 bug with strict overflow checking; see
-   <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>.
+   <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>.
    This bug appears to be fixed in GCC 5.1, so don't work around it there.  */
 #if GNUC_PREREQ (4, 3, 0) && ! GNUC_PREREQ (5, 1, 0)
 # pragma GCC diagnostic ignored "-Wstrict-overflow"
diff --git a/src/process.h b/src/process.h
index 2c174cc3ea8..5a044f669f2 100644
--- a/src/process.h
+++ b/src/process.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_PROCESS_H
 #define EMACS_PROCESS_H
diff --git a/src/profiler.c b/src/profiler.c
index 6dc0d8ce72d..d9d7d0b1c7f 100644
--- a/src/profiler.c
+++ b/src/profiler.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include "lisp.h"
diff --git a/src/puresize.h b/src/puresize.h
index b90b6970421..0824437bdfd 100644
--- a/src/puresize.h
+++ b/src/puresize.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_PURESIZE_H
 #define EMACS_PURESIZE_H
diff --git a/src/ralloc.c b/src/ralloc.c
index 8a3d2b797f3..59a15e08ad8 100644
--- a/src/ralloc.c
+++ b/src/ralloc.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* NOTES:
 
diff --git a/src/regex.c b/src/regex.c
index 0dbb47309e4..330f2f78a84 100644
--- a/src/regex.c
+++ b/src/regex.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/>.  */
 
 /* TODO:
    - structure the opcode space into opcode+flag.
diff --git a/src/regex.h b/src/regex.h
index 5e3a79763ec..9fa83560116 100644
--- a/src/regex.h
+++ b/src/regex.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 _REGEX_H
 #define _REGEX_H 1
diff --git a/src/region-cache.c b/src/region-cache.c
index 36c8759366c..a00b28ea22f 100644
--- a/src/region-cache.c
+++ b/src/region-cache.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/region-cache.h b/src/region-cache.h
index 6327e2dc081..483ee36831f 100644
--- a/src/region-cache.h
+++ b/src/region-cache.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_REGION_CACHE_H
 #define EMACS_REGION_CACHE_H
diff --git a/src/scroll.c b/src/scroll.c
index 482a0261923..7004dcd9aea 100644
--- a/src/scroll.c
+++ b/src/scroll.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/search.c b/src/search.c
index 19e789dfa87..0cb1ec41f59 100644
--- a/src/search.c
+++ b/src/search.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/sheap.c b/src/sheap.c
index f7028b0cf76..09c1342bac1 100644
--- a/src/sheap.c
+++ b/src/sheap.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/sheap.h b/src/sheap.h
index 023db8c0fc3..f18eb2f1ce9 100644
--- a/src/sheap.h
+++ b/src/sheap.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
 #include "lisp.h"
diff --git a/src/sound.c b/src/sound.c
index 75c27a97f4d..7a7f03d303a 100644
--- a/src/sound.c
+++ b/src/sound.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Written by Gerd Moellmann <gerd@gnu.org>.  Tested with Luigi's
    driver on FreeBSD 2.2.7 with a SoundBlaster 16.  */
diff --git a/src/syntax.c b/src/syntax.c
index dcaca22f0e2..80603b4f8b3 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/syntax.h b/src/syntax.h
index f0bb9569cc7..2a7ba54e608 100644
--- a/src/syntax.h
+++ b/src/syntax.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_SYNTAX_H
 #define EMACS_SYNTAX_H
diff --git a/src/sysdep.c b/src/sysdep.c
index f5050e60f43..318d4eb380c 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/sysselect.h b/src/sysselect.h
index 2ddea665b30..8295aeb8421 100644
--- a/src/sysselect.h
+++ b/src/sysselect.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef SYSSELECT_H
 #define SYSSELECT_H 1
diff --git a/src/syssignal.h b/src/syssignal.h
index 8b815a29a35..61e1c5f60e8 100644
--- a/src/syssignal.h
+++ b/src/syssignal.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_SYSSIGNAL_H
 #define EMACS_SYSSIGNAL_H
diff --git a/src/sysstdio.h b/src/sysstdio.h
index 7fbcefcdad9..87d62afc3d7 100644
--- a/src/sysstdio.h
+++ b/src/sysstdio.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_SYSSTDIO_H
 #define EMACS_SYSSTDIO_H
diff --git a/src/systhread.c b/src/systhread.c
index aee12a9b482..ee89a1ed3ff 100644
--- a/src/systhread.c
+++ b/src/systhread.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <setjmp.h>
diff --git a/src/systhread.h b/src/systhread.h
index c7999c0651d..443dc55c6a4 100644
--- a/src/systhread.h
+++ b/src/systhread.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef SYSTHREAD_H
 #define SYSTHREAD_H
diff --git a/src/systime.h b/src/systime.h
index d79eb213960..f9f1db35eb8 100644
--- a/src/systime.h
+++ b/src/systime.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_SYSTIME_H
 #define EMACS_SYSTIME_H
diff --git a/src/systty.h b/src/systty.h
index 9f2c61e0d69..a5ffc7b1d71 100644
--- a/src/systty.h
+++ b/src/systty.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_SYSTTY_H
 #define EMACS_SYSTTY_H
diff --git a/src/syswait.h b/src/syswait.h
index 055562ae48b..939c16f4fb6 100644
--- a/src/syswait.h
+++ b/src/syswait.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Define the structure that the wait system call stores.
    On many systems, there is a structure defined for this.
diff --git a/src/term.c b/src/term.c
index c1d7b0483e7..a2ae8c2c6f0 100644
--- a/src/term.c
+++ b/src/term.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* New redisplay, TTY faces by Gerd Moellmann <gerd@gnu.org>.  */
 
diff --git a/src/termcap.c b/src/termcap.c
index a0e558d9cac..6942c33daec 100644
--- a/src/termcap.c
+++ b/src/termcap.c
@@ -13,7 +13,7 @@ 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/>.  */
 
 /* Emacs config.h may rename various library functions such as malloc.  */
 #include <config.h>
diff --git a/src/termchar.h b/src/termchar.h
index cf061a97806..3e1695d075e 100644
--- a/src/termchar.h
+++ b/src/termchar.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_TERMCHAR_H
 #define EMACS_TERMCHAR_H
diff --git a/src/termhooks.h b/src/termhooks.h
index 14ec397346a..97c128ba4e2 100644
--- a/src/termhooks.h
+++ b/src/termhooks.h
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_TERMHOOKS_H
 #define EMACS_TERMHOOKS_H
diff --git a/src/terminal.c b/src/terminal.c
index 367f2ac7192..0edaad65c7f 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/terminfo.c b/src/terminfo.c
index 1a0c0133dd8..046d00acee9 100644
--- a/src/terminfo.c
+++ b/src/terminfo.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include "tparam.h"
diff --git a/src/termopts.h b/src/termopts.h
index a78c5f03afe..e1c5f2b7b3c 100644
--- a/src/termopts.h
+++ b/src/termopts.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_TERMOPTS_H
 #define EMACS_TERMOPTS_H
diff --git a/src/textprop.c b/src/textprop.c
index 225ff28e57e..513780c3009 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/thread.c b/src/thread.c
index 1f7ced386d3..42d7791ad0f 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/thread.h b/src/thread.h
index 52b16f1ba83..7fce8674f0e 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef THREAD_H
 #define THREAD_H
diff --git a/src/tparam.c b/src/tparam.c
index 92fa5b19df7..ff145729cd0 100644
--- a/src/tparam.c
+++ b/src/tparam.c
@@ -13,7 +13,7 @@ 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/>.  */
 
 /* Emacs config.h may rename various library functions such as malloc.  */
 #include <config.h>
diff --git a/src/tparam.h b/src/tparam.h
index 02136b6ca58..7ae2a10c2f5 100644
--- a/src/tparam.h
+++ b/src/tparam.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef EMACS_TPARAM_H
 #define EMACS_TPARAM_H
diff --git a/src/undo.c b/src/undo.c
index a4ae40cbc49..d9a56872dca 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 #include <config.h>
diff --git a/src/unexaix.c b/src/unexaix.c
index 75a79c66d0a..7698af0f01a 100644
--- a/src/unexaix.c
+++ b/src/unexaix.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 In other words, you are welcome to use, share and improve this program.
diff --git a/src/unexcoff.c b/src/unexcoff.c
index 9852c14553a..1a42c84a9b7 100644
--- a/src/unexcoff.c
+++ b/src/unexcoff.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /*
diff --git a/src/unexcw.c b/src/unexcw.c
index 8e5d7e89f19..55206ccffae 100644
--- a/src/unexcw.c
+++ b/src/unexcw.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include "unexec.h"
diff --git a/src/unexelf.c b/src/unexelf.c
index 5129784ade2..1cdcfeb44e4 100644
--- a/src/unexelf.c
+++ b/src/unexelf.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
 In other words, you are welcome to use, share and improve this program.
diff --git a/src/unexmacosx.c b/src/unexmacosx.c
index 3b1efa3ca30..7fb5750cef2 100644
--- a/src/unexmacosx.c
+++ b/src/unexmacosx.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Contributed by Andrew Choi (akochoi@mac.com).  */
 
diff --git a/src/unexw32.c b/src/unexw32.c
index 5259b2a52b0..73d23056263 100644
--- a/src/unexw32.c
+++ b/src/unexw32.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /*
    Geoff Voelker (voelker@cs.washington.edu)                         8-12-94
diff --git a/src/vm-limit.c b/src/vm-limit.c
index bb38b445b10..703238bf6ce 100644
--- a/src/vm-limit.c
+++ b/src/vm-limit.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <unistd.h> /* for 'environ', on AIX */
diff --git a/src/widget.c b/src/widget.c
index 585039d58c6..d5f720e7a54 100644
--- a/src/widget.c
+++ b/src/widget.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Emacs 19 face widget ported by Fred Pierresteguy */
 
diff --git a/src/widget.h b/src/widget.h
index 97dd6ab61de..07cc665b355 100644
--- a/src/widget.h
+++ b/src/widget.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Emacs 19 face widget ported by Fred Pierresteguy */
 
diff --git a/src/widgetprv.h b/src/widgetprv.h
index 309aed779da..ac49e8c8027 100644
--- a/src/widgetprv.h
+++ b/src/widgetprv.h
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Emacs 19 face widget ported by Fred Pierresteguy */
 
diff --git a/src/window.c b/src/window.c
index 18adb62538b..ba86d73911f 100644
--- a/src/window.c
+++ b/src/window.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/window.h b/src/window.h
index e9040f816df..df7c23f824b 100644
--- a/src/window.h
+++ b/src/window.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef WINDOW_H_INCLUDED
 #define WINDOW_H_INCLUDED
diff --git a/src/xdisp.c b/src/xdisp.c
index 5e8188cacb9..8ca9037a00d 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* New redisplay written by Gerd Moellmann <gerd@gnu.org>.
 
diff --git a/src/xfaces.c b/src/xfaces.c
index 32a5bd5f60b..012de4e7af1 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* New face implementation by Gerd Moellmann <gerd@gnu.org>.  */
 
diff --git a/src/xfns.c b/src/xfns.c
index 40f06e2d9f3..69955fe9a8f 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/xfont.c b/src/xfont.c
index 85fccf0dafd..3891c8b7b92 100644
--- a/src/xfont.c
+++ b/src/xfont.c
@@ -17,7 +17,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
@@ -877,7 +877,7 @@ xfont_close (struct font *font)
      the logically different X connection after the previous display
      connection was closed.  That's why we also check whether font's
      ID matches the one recorded in x_display_info for this display.
-     See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16069.  */
+     See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=16069.  */
   if (xfi->xfont
       && ((xdi = x_display_info_for_display (xfi->display))
           && xfi->x_display_id == xdi->x_id))
diff --git a/src/xftfont.c b/src/xftfont.c
index 137d5baf14b..ff8a59f3bf2 100644
--- a/src/xftfont.c
+++ b/src/xftfont.c
@@ -17,7 +17,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
diff --git a/src/xgselect.c b/src/xgselect.c
index 26a2d27e84b..885563cc90d 100644
--- a/src/xgselect.c
+++ b/src/xgselect.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/xgselect.h b/src/xgselect.h
index 5baf8a8f03c..a4280cc0215 100644
--- a/src/xgselect.h
+++ b/src/xgselect.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef XGSELECT_H
 #define XGSELECT_H
diff --git a/src/xmenu.c b/src/xmenu.c
index 64df151b289..3935307519f 100644
--- a/src/xmenu.c
+++ b/src/xmenu.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* X pop-up deck-of-cards menu facility for GNU Emacs.
  *
diff --git a/src/xml.c b/src/xml.c
index 7953491cc22..d087a34a5e0 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/xrdb.c b/src/xrdb.c
index 5611a33b283..15a01475b7c 100644
--- a/src/xrdb.c
+++ b/src/xrdb.c
@@ -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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/xselect.c b/src/xselect.c
index 2249828fb4e..7fbb23339d9 100644
--- a/src/xselect.c
+++ b/src/xselect.c
@@ -14,7 +14,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* Rewritten by jwz */
diff --git a/src/xsettings.c b/src/xsettings.c
index 4d56ad10dda..f73b791d519 100644
--- a/src/xsettings.c
+++ b/src/xsettings.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/xsettings.h b/src/xsettings.h
index ba2a31082be..27717aae6ee 100644
--- a/src/xsettings.h
+++ b/src/xsettings.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef XSETTINGS_H
 #define XSETTINGS_H
diff --git a/src/xsmfns.c b/src/xsmfns.c
index d3b4d4d66a3..2cb4f3eca56 100644
--- a/src/xsmfns.c
+++ b/src/xsmfns.c
@@ -16,7 +16,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/xterm.c b/src/xterm.c
index 0b949330ebc..0b321909c85 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* New display code by Gerd Moellmann <gerd@gnu.org>.  */
 /* Xt features made by Fred Pierresteguy.  */
@@ -8005,7 +8005,7 @@ handle_one_xevent (struct x_display_info *dpyinfo,
             {
 #ifdef USE_GTK
               /* This seems to be needed for GTK 2.6 and later, see
-                 http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15398.  */
+                 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=15398.  */
               x_clear_area (f,
                             event->xexpose.x, event->xexpose.y,
                             event->xexpose.width, event->xexpose.height);
@@ -12268,7 +12268,7 @@ static void
 x_setup_pointer_blanking (struct x_display_info *dpyinfo)
 {
   /* FIXME: the brave tester should set EMACS_XFIXES because we're suspecting
-     X server bug, see http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17609.  */
+     X server bug, see https://debbugs.gnu.org/cgi/bugreport.cgi?bug=17609.  */
   if (egetenv ("EMACS_XFIXES") && x_probe_xfixes_extension (dpyinfo->display))
     dpyinfo->toggle_visible_pointer = xfixes_toggle_visible_pointer;
   else
diff --git a/src/xterm.h b/src/xterm.h
index b16d3023f0a..6274630706f 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef XTERM_H
 #define XTERM_H
diff --git a/src/xwidget.c b/src/xwidget.c
index e6de5da8e69..a0c9e034775 100644
--- a/src/xwidget.c
+++ b/src/xwidget.c
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/src/xwidget.h b/src/xwidget.h
index d43b4017965..22a8eb3a557 100644
--- a/src/xwidget.h
+++ b/src/xwidget.h
@@ -15,7 +15,7 @@ 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef XWIDGET_H_INCLUDED
 #define XWIDGET_H_INCLUDED