Remove our old ctags and suggest Universal Ctags instead.
This fixes a FIXME in lib-src/Makefile.in and speeds up compilation
quite a bit on my older CPU when I compile with	--enable-gcc-warnings.
It also lessens installation and runtime footprint. (Bug#76322)
* .gitignore: Remove lib-src/ctags.
* admin/authors.el (authors-renamed-files-alist): Remove ctags.1.
* admin/check-man-pages: ctags.1 is no longer a special case.
* admin/quick-install-emacs (PUBLIC_LIBSRC_BINARIES): Remove ctags.
* cross/Makefile.in (LIBSRC_BINARIES): Remove lib-src/ctags.
* doc/man/ctags.1, lib-src/ctags.c: Remove.
* java/Makefile.in (CROSS_LIBSRC_BINS): Remove ctags.
* lib-src/Makefile.in (INSTALLABLES): Remove ctags${EXEEXT}.
(ctags${EXEEXT}): Remove.
* lib-src/etags.c (CTAGS): Remove.  All uses replaced by ...
(ctags): ... this new static var.
(STDIN): Remove macro.  All uses replaced by new STDIN_OPTION constant.
(CTAGS_OPTION, STDIN_OPTION): New contants.
(longopts): New --ctags option.
(ctags_default_C_help): New constant,
to override default_C_help at runtime.
(default_C_help): Now always the etags version.
(C_LANG_NAMES_INDEX): New macro.
(print_language_names): Do not assume etags.
(PROGRAM_NAME): Remove.  All uses removed.
(print_help): Document --ctags if PRINT_UNDOCUMENTED_OPTIONS_HELP.
(main): Support new --ctags option, and support all [ce]tags options.
* test/manual/etags/Makefile (CTAGS_PROG):
Now etags --ctags, since there is no longer a ctags.

* nt/INSTALL:
* INSTALL: Recommend not to use -O3 and -Os in ordinary production
builds.  (Bug#76559)

d66b8d4becb Fix checkbox's child creation
26c5fadf474 Document that 'package-vc' doesn't support built-in packages
ee61b9a050b ; Fix documentation of completion commands
ce43d13593a ; Simplify admin/run-codespell
fa1470d0699 ; Remove duplicated word in files.el Commentary
dabaea97465 Improve checkdoc-common-verbs-wrong-voice docstring
6de2ee5663d Document string-as-{unibyte,multibyte} as obsolete in manual
7f76f872ebf Fix go-ts-mode var spec indentation (Bug#75362)
01464fc882d Add "text" as a thing in tsx-ts-mode
59c57337923 Improve doc string of 'package-delete'
313a191d047 ; * admin/MAINTAINERS: Remove Kelvin White.
002960ceabf Clarify that 'mac' line ending convention is not used on ...
4210e065648 Add language server for Odin
ee1034422b0 ; Improve documentation of function-type display
1c49edc4080 Modernize "Commentary" section of files.el
505c1123e18 * INSTALL: Add advice how to invoke 'make install'.  (Bug...
82e16cae9cc Improve the documentation of 'key-valid-p'

# Conflicts:
#	etc/NEWS
#	lisp/progmodes/typescript-ts-mode.el

Run "TZ=UTC0 admin/update-copyright".

Run "TZ=UTC0 admin/update-copyright".

* INSTALL: Move description of CFLAGS etc. into the section headed
“Here is a complete list of the variables you may want to set”
since they are also variables one might want to set.

* INSTALL: Add section "Native compilation of Lisp files" under
ADDITIONAL DISTRIBUTION FILES and correspondingly augment item 6
of DETAILED BUILDING AND INSTALLATION.  In the latter also note
differences between in-source-tree and out-of-tree builds for
running 'src/emacs' uninstalled.