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master b4b6a26: Use `lexical-binding` in all `lisp/international` files


From: Stefan Monnier
Subject: master b4b6a26: Use `lexical-binding` in all `lisp/international` files
Date: Mon, 25 Jan 2021 22:58:29 -0500 (EST)

branch: master
commit b4b6a2684062d4470143b6ea460b5e82012554a1
Author: Stefan Monnier <monnier@iro.umontreal.ca>
Commit: Stefan Monnier <monnier@iro.umontreal.ca>

    Use `lexical-binding` in all `lisp/international` files
    
    * lisp/startup.el (keyboard-type): Make obsolete and lex-bound.
    
    * admin/unidata/unidata-gen.el (unidata-gen-file)
    (unidata-gen-charprop): Mark the generated files to use lexical binding.
    
    * lisp/international/isearch-x.el: Use lexical-binding.
    (junk-hist): Declare locally.
    
    * lisp/international/iso-cvt.el:
    * lisp/international/utf-7.el:
    * lisp/international/robin.el:
    * lisp/international/ogonek.el:
    * lisp/international/latin1-disp.el:
    * lisp/international/kkc.el:
    * lisp/international/kinsoku.el:
    * lisp/international/ja-dic-utl.el: Use lexical-binding.
    
    * lisp/international/ja-dic-cnv.el: Use lexical-binding.
    (skkdic-breakup-string): Remove unused var `kana-len`.
    
    * lisp/international/latexenc.el: Use lexical-binding.
    (tex-start-of-header): Declare.
    
    * lisp/international/mule-diag.el: Use lexical-binding.
    (list-character-sets): Remove unused var `pos`.
    (list-character-sets-1): Remove unused vars `tail` and `charset`.
    (list-charset-chars): Remove unused vars `chars` and `plane`.
    (describe-coding-system): Remove unused var `extra-spec`.
    (mule--print-opened): New var.
    (print-fontset): Bind it.
    (print-fontset-element): Use it instead of `print-opened`.
    
    * lisp/international/quail.el: Use lexical-binding.
    (quail-start-translation, quail-start-conversion):
    Remove unused var `generated-events`.
    (quail-help-insert-keymap-description): Use local dynbound var `the-keymap`.
---
 admin/unidata/unidata-gen.el      |  6 ++++--
 etc/NEWS                          |  2 ++
 lisp/international/isearch-x.el   |  5 +++--
 lisp/international/iso-cvt.el     | 24 ++++++++++++------------
 lisp/international/ja-dic-cnv.el  |  8 ++++----
 lisp/international/ja-dic-utl.el  |  2 +-
 lisp/international/kinsoku.el     |  2 +-
 lisp/international/kkc.el         |  2 +-
 lisp/international/latexenc.el    |  4 +++-
 lisp/international/latin1-disp.el | 19 +++++++++----------
 lisp/international/mule-diag.el   | 27 +++++++++++++++------------
 lisp/international/ogonek.el      |  2 +-
 lisp/international/quail.el       | 16 +++++++++-------
 lisp/international/robin.el       |  2 +-
 lisp/international/utf-7.el       |  2 +-
 lisp/startup.el                   |  2 ++
 16 files changed, 69 insertions(+), 56 deletions(-)

diff --git a/admin/unidata/unidata-gen.el b/admin/unidata/unidata-gen.el
index 3918853..221c9b1 100644
--- a/admin/unidata/unidata-gen.el
+++ b/admin/unidata/unidata-gen.el
@@ -1416,7 +1416,8 @@ Property value is a symbol `o' (Open), `c' (Close), or 
`n' (None)."
       (or elt (user-error "Unknown output file: %s" basename))
       (or noninteractive (message "Generating %s..." file))
       (with-temp-file file
-        (insert ";; " copyright "
+        (insert ";;; " basename "  -*- lexical-binding:t -*-
+;; " copyright "
 ;; Generated from Unicode data files by unidata-gen.el.
 ;; The sources for this file are found in the admin/unidata/ directory in
 ;; the Emacs sources.  The Unicode data files are used under the
@@ -1451,7 +1452,8 @@ Property value is a symbol `o' (Open), `c' (Close), or 
`n' (None)."
 (defun unidata-gen-charprop (&optional charprop-file)
   (or charprop-file (setq charprop-file (pop command-line-args-left)))
   (with-temp-file charprop-file
-    (insert ";; Automatically generated by unidata-gen.el.\n"
+    (insert ";; Automatically generated by unidata-gen.el."
+            "  -*- lexical-binding: t -*-\n"
             ";; See the admin/unidata/ directory in the Emacs sources.\n")
     (dolist (elt unidata-file-alist)
       (dolist (proplist (cdr elt))
diff --git a/etc/NEWS b/etc/NEWS
index 6a80493..b815d3a 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -2133,6 +2133,8 @@ obsolete back in Emacs-23.1.  The affected functions are:
 make-obsolete, define-obsolete-function-alias, make-obsolete-variable,
 define-obsolete-variable-alias.
 
+** The variable 'keyboard-type' is obsolete and not dynamically scoped any more
+
 
 * Lisp Changes in Emacs 28.1
 
diff --git a/lisp/international/isearch-x.el b/lisp/international/isearch-x.el
index 400421d..b890bde 100644
--- a/lisp/international/isearch-x.el
+++ b/lisp/international/isearch-x.el
@@ -1,4 +1,4 @@
-;;; isearch-x.el --- extended isearch handling commands
+;;; isearch-x.el --- extended isearch handling commands  -*- lexical-binding: 
t; -*-
 
 ;; Copyright (C) 1997, 2001-2021 Free Software Foundation, Inc.
 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
@@ -67,7 +67,7 @@
 
 ;; Exit from recursive edit safely.  Set in `after-change-functions'
 ;; by isearch-with-keyboard-coding.
-(defun isearch-exit-recursive-edit (start end length)
+(defun isearch-exit-recursive-edit (_start _end _length)
   (interactive)
   (throw 'exit nil))
 
@@ -102,6 +102,7 @@
 
 ;;;###autoload
 (defun isearch-process-search-multibyte-characters (last-char &optional count)
+  (defvar junk-hist)
   (if (eq this-command 'isearch-printing-char)
       (let ((overriding-terminal-local-map nil)
            (prompt (isearch-message-prefix))
diff --git a/lisp/international/iso-cvt.el b/lisp/international/iso-cvt.el
index 3f3843e..ead7c8a 100644
--- a/lisp/international/iso-cvt.el
+++ b/lisp/international/iso-cvt.el
@@ -1,4 +1,4 @@
-;;; iso-cvt.el --- translate ISO 8859-1 from/to various encodings -*- coding: 
utf-8 -*-
+;;; iso-cvt.el --- translate ISO 8859-1 from/to various encodings -*- 
lexical-binding: t; -*-
 ;; This file was formerly called gm-lingo.el.
 
 ;; Copyright (C) 1993-1998, 2000-2021 Free Software Foundation, Inc.
@@ -79,7 +79,7 @@
       (point-max))))
 
 ;;;###autoload
-(defun iso-spanish (from to &optional buffer)
+(defun iso-spanish (from to &optional _buffer)
   "Translate net conventions for Spanish to ISO 8859-1.
 Translate the region between FROM and TO using the table
 `iso-spanish-trans-tab'.
@@ -121,7 +121,7 @@ and may translate too little.")
   "Currently active translation table for German.")
 
 ;;;###autoload
-(defun iso-german (from to &optional buffer)
+(defun iso-german (from to &optional _buffer)
  "Translate net conventions for German to ISO 8859-1.
 Translate the region FROM and TO using the table
 `iso-german-trans-tab'.
@@ -194,7 +194,7 @@ Optional arg BUFFER is ignored (for use in `format-alist')."
   "Translation table for translating ISO 8859-1 characters to TeX sequences.")
 
 ;;;###autoload
-(defun iso-iso2tex (from to &optional buffer)
+(defun iso-iso2tex (from to &optional _buffer)
  "Translate ISO 8859-1 characters to TeX sequences.
 Translate the region between FROM and TO using the table
 `iso-iso2tex-trans-tab'.
@@ -387,7 +387,7 @@ This table is not exhaustive (and due to TeX's power can 
never be).
 It only contains commonly used sequences.")
 
 ;;;###autoload
-(defun iso-tex2iso (from to &optional buffer)
+(defun iso-tex2iso (from to &optional _buffer)
  "Translate TeX sequences to ISO 8859-1 characters.
 Translate the region between FROM and TO using the table
 `iso-tex2iso-trans-tab'.
@@ -646,7 +646,7 @@ It only contains commonly used sequences.")
   "Translation table for translating ISO 8859-1 characters to German TeX.")
 
 ;;;###autoload
-(defun iso-gtex2iso (from to &optional buffer)
+(defun iso-gtex2iso (from to &optional _buffer)
  "Translate German TeX sequences to ISO 8859-1 characters.
 Translate the region between FROM and TO using the table
 `iso-gtex2iso-trans-tab'.
@@ -655,7 +655,7 @@ Optional arg BUFFER is ignored (for use in `format-alist')."
  (iso-translate-conventions from to iso-gtex2iso-trans-tab))
 
 ;;;###autoload
-(defun iso-iso2gtex (from to &optional buffer)
+(defun iso-iso2gtex (from to &optional _buffer)
  "Translate ISO 8859-1 characters to German TeX sequences.
 Translate the region between FROM and TO using the table
 `iso-iso2gtex-trans-tab'.
@@ -674,7 +674,7 @@ Optional arg BUFFER is ignored (for use in `format-alist')."
     "Translation table for translating ISO 8859-1 characters to Duden 
sequences.")
 
 ;;;###autoload
-(defun iso-iso2duden (from to &optional buffer)
+(defun iso-iso2duden (from to &optional _buffer)
  "Translate ISO 8859-1 characters to Duden sequences.
 Translate the region between FROM and TO using the table
 `iso-iso2duden-trans-tab'.
@@ -812,7 +812,7 @@ Optional arg BUFFER is ignored (for use in `format-alist')."
     ("&yuml;" "ÿ")))
 
 ;;;###autoload
-(defun iso-iso2sgml (from to &optional buffer)
+(defun iso-iso2sgml (from to &optional _buffer)
  "Translate ISO 8859-1 characters in the region to SGML entities.
 Use entities from \"ISO 8879:1986//ENTITIES Added Latin 1//EN\".
 Optional arg BUFFER is ignored (for use in `format-alist')."
@@ -820,7 +820,7 @@ Optional arg BUFFER is ignored (for use in `format-alist')."
  (iso-translate-conventions from to iso-iso2sgml-trans-tab))
 
 ;;;###autoload
-(defun iso-sgml2iso (from to &optional buffer)
+(defun iso-sgml2iso (from to &optional _buffer)
  "Translate SGML entities in the region to ISO 8859-1 characters.
 Use entities from \"ISO 8879:1986//ENTITIES Added Latin 1//EN\".
 Optional arg BUFFER is ignored (for use in `format-alist')."
@@ -828,13 +828,13 @@ Optional arg BUFFER is ignored (for use in 
`format-alist')."
  (iso-translate-conventions from to iso-sgml2iso-trans-tab))
 
 ;;;###autoload
-(defun iso-cvt-read-only (&rest ignore)
+(defun iso-cvt-read-only (&rest _ignore)
   "Warn that format is read-only."
   (interactive)
   (error "This format is read-only; specify another format for writing"))
 
 ;;;###autoload
-(defun iso-cvt-write-only (&rest ignore)
+(defun iso-cvt-write-only (&rest _ignore)
   "Warn that format is write-only."
   (interactive)
   (error "This format is write-only"))
diff --git a/lisp/international/ja-dic-cnv.el b/lisp/international/ja-dic-cnv.el
index b805904..155c85f 100644
--- a/lisp/international/ja-dic-cnv.el
+++ b/lisp/international/ja-dic-cnv.el
@@ -1,4 +1,4 @@
-;;; ja-dic-cnv.el --- convert a Japanese dictionary (SKK-JISYO.L) to Emacs Lisp
+;;; ja-dic-cnv.el --- convert a Japanese dictionary (SKK-JISYO.L) to Emacs 
Lisp  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2001-2021 Free Software Foundation, Inc.
 
@@ -96,7 +96,7 @@
     ("もく" "目")
     ("ゆき" "行")))
 
-(defun skkdic-convert-postfix (skkbuf buf)
+(defun skkdic-convert-postfix (_skkbuf buf)
   (byte-compile-info "Processing POSTFIX entries" t)
   (goto-char (point-min))
   (with-current-buffer buf
@@ -150,7 +150,7 @@
 
 (defconst skkdic-prefix-list '(skkdic-prefix-list))
 
-(defun skkdic-convert-prefix (skkbuf buf)
+(defun skkdic-convert-prefix (_skkbuf buf)
   (byte-compile-info "Processing PREFIX entries" t)
   (goto-char (point-min))
   (with-current-buffer buf
@@ -209,7 +209,7 @@
                                    (substring str from idx)
                                    skkdic-word-list)))
                   (if (or (and (consp kana2-list)
-                               (let ((kana-len (length kana))
+                               (let (;; (kana-len (length kana))
                                      kana2)
                                  (catch 'skkdic-tag
                                    (while kana2-list
diff --git a/lisp/international/ja-dic-utl.el b/lisp/international/ja-dic-utl.el
index 498fb23..cc63698 100644
--- a/lisp/international/ja-dic-utl.el
+++ b/lisp/international/ja-dic-utl.el
@@ -1,4 +1,4 @@
-;;; ja-dic-utl.el --- utilities for handling Japanese dictionary (SKK-JISYO.L)
+;;; ja-dic-utl.el --- utilities for handling Japanese dictionary (SKK-JISYO.L) 
 -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
 ;;   2005, 2006, 2007, 2008, 2009, 2010, 2011
diff --git a/lisp/international/kinsoku.el b/lisp/international/kinsoku.el
index cd740ac..05179a9 100644
--- a/lisp/international/kinsoku.el
+++ b/lisp/international/kinsoku.el
@@ -1,4 +1,4 @@
-;;; kinsoku.el --- `Kinsoku' processing funcs
+;;; kinsoku.el --- `Kinsoku' processing funcs  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 1997, 2001-2021 Free Software Foundation, Inc.
 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
diff --git a/lisp/international/kkc.el b/lisp/international/kkc.el
index 290f4fa..87f7389 100644
--- a/lisp/international/kkc.el
+++ b/lisp/international/kkc.el
@@ -1,4 +1,4 @@
-;;; kkc.el --- Kana Kanji converter
+;;; kkc.el --- Kana Kanji converter  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 1997-1998, 2001-2021 Free Software Foundation, Inc.
 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
diff --git a/lisp/international/latexenc.el b/lisp/international/latexenc.el
index e2ee3fb..ff7cddc 100644
--- a/lisp/international/latexenc.el
+++ b/lisp/international/latexenc.el
@@ -1,4 +1,4 @@
-;;; latexenc.el --- guess correct coding system in LaTeX files -*-coding: 
utf-8 -*-
+;;; latexenc.el --- guess correct coding system in LaTeX files -*- 
lexical-binding: t; -*-
 
 ;; Copyright (C) 2005-2021 Free Software Foundation, Inc.
 
@@ -109,6 +109,8 @@ Return nil if no matching input encoding can be found."
 (defvar latexenc-dont-use-tex-guess-main-file-flag nil
   "Non-nil means don't use tex-guessmain-file to find the coding system.")
 
+(defvar tex-start-of-header)
+
 ;;;###autoload
 (defun latexenc-find-file-coding-system (arg-list)
   "Determine the coding system of a LaTeX file if it uses \"inputenc.sty\".
diff --git a/lisp/international/latin1-disp.el 
b/lisp/international/latin1-disp.el
index bda2c51..4b6ef98 100644
--- a/lisp/international/latin1-disp.el
+++ b/lisp/international/latin1-disp.el
@@ -1,4 +1,4 @@
-;;; latin1-disp.el --- display tables for other ISO 8859 on Latin-1 terminals 
-*-coding: utf-8;-*-
+;;; latin1-disp.el --- display tables for other ISO 8859 on Latin-1 terminals 
-*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2000-2021 Free Software Foundation, Inc.
 
@@ -86,8 +86,8 @@ use either \\[customize] or the function `latin1-display'."
   :group 'latin1-display
   :type 'boolean
   :require 'latin1-disp
-  :initialize 'custom-initialize-default
-  :set (lambda (symbol value)
+  :initialize #'custom-initialize-default
+  :set (lambda (_symbol value)
         (if value
             (apply #'latin1-display latin1-display-sets)
           (latin1-display))))
@@ -186,7 +186,7 @@ character set."
                     'arabic-iso8859-6
                   (car (remq 'ascii (get-language-info language
                                                        'charset))))))
-    (map-charset-chars #'(lambda (range arg)
+    (map-charset-chars #'(lambda (range _arg)
                           (standard-display-default (car range) (cdr range)))
                       charset))
   (sit-for 0))
@@ -201,11 +201,10 @@ character set: `latin-2', `hebrew' etc."
         (char (and info (decode-char (car (remq 'ascii info)) ?\ ))))
     (and char (char-displayable-p char))))
 
-(defun latin1-display-setup (set &optional force)
+(defun latin1-display-setup (set &optional _force)
   "Set up Latin-1 display for characters in the given SET.
 SET must be a member of `latin1-display-sets'.  Normally, check
-whether a font for SET is available and don't set the display if it
-is.  If FORCE is non-nil, set up the display regardless."
+whether a font for SET is available and don't set the display if it is."
   (cond
    ((eq set 'latin-2)
     (latin1-display-identities set)
@@ -735,7 +734,7 @@ is.  If FORCE is non-nil, set up the display regardless."
   (sit-for 0))
 
 ;;;###autoload
-(defcustom latin1-display-ucs-per-lynx nil
+(defcustom latin1-display-ucs-per-lynx nil ;FIXME: Isn't this a minor mode?
   "Set up Latin-1/ASCII display for Unicode characters.
 This uses the transliterations of the Lynx browser.  The display isn't
 changed if the display can render Unicode characters.
@@ -745,8 +744,8 @@ use either \\[customize] or the function `latin1-display'."
   :group 'latin1-display
   :type 'boolean
   :require 'latin1-disp
-  :initialize 'custom-initialize-default
-  :set (lambda (symbol value)
+  :initialize #'custom-initialize-default
+  :set (lambda (_symbol value)
         (if value
             (latin1-display-ucs-per-lynx 1)
           (latin1-display-ucs-per-lynx -1))))
diff --git a/lisp/international/mule-diag.el b/lisp/international/mule-diag.el
index d622268..d97d090 100644
--- a/lisp/international/mule-diag.el
+++ b/lisp/international/mule-diag.el
@@ -1,4 +1,4 @@
-;;; mule-diag.el --- show diagnosis of multilingual environment (Mule)
+;;; mule-diag.el --- show diagnosis of multilingual environment (Mule)  -*- 
lexical-binding: t; -*-
 
 ;; Copyright (C) 1997-1998, 2000-2021 Free Software Foundation, Inc.
 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
@@ -86,8 +86,7 @@ but still shows the full information."
        (indent-to 48)
        (insert "| +--CHARS\n")
        (let ((columns '(("CHARSET-NAME" . name) "\t\t\t\t\t"
-                        ("D CH  FINAL-BYTE" . iso-spec)))
-             pos)
+                        ("D CH  FINAL-BYTE" . iso-spec))))
          (while columns
            (if (stringp (car columns))
                (insert (car columns))
@@ -117,8 +116,8 @@ but still shows the full information."
 SORT-KEY should be `name' or `iso-spec' (default `name')."
   (or sort-key
       (setq sort-key 'name))
-  (let ((tail charset-list)
-       charset-info-list supplementary-list charset sort-func)
+  (let (;; (tail charset-list)
+       charset-info-list supplementary-list sort-func)
     (dolist (charset charset-list)
       ;; Generate a list that contains all information to display.
       (let ((elt (list charset
@@ -273,9 +272,9 @@ meanings of these arguments."
       (setq tab-width 4)
       (set-buffer-multibyte t)
       (let ((dim (charset-dimension charset))
-           (chars (charset-chars charset))
-           ;;  (plane (charset-iso-graphic-plane charset))
-           (plane 1)
+           ;; (chars (charset-chars charset))
+           ;; (plane (charset-iso-graphic-plane charset))
+           ;; (plane 1)
            (range (plist-get (charset-plist charset) :code-space))
            min max min2 max2)
        (if (> dim 2)
@@ -415,7 +414,8 @@ or provided just for backward compatibility." nil)))
       (print-coding-system-briefly coding-system 'doc-string)
       (let ((type (coding-system-type coding-system))
            ;; Fixme: use this
-           (extra-spec (coding-system-plist coding-system)))
+           ;; (extra-spec (coding-system-plist coding-system))
+           )
        (princ "Type: ")
        (princ type)
        (cond ((eq type 'undecided)
@@ -858,6 +858,8 @@ The IGNORED argument is ignored."
       (with-output-to-temp-buffer "*Help*"
        (describe-font-internal font-info)))))
 
+(defvar mule--print-opened)
+
 (defun print-fontset-element (val)
   ;; VAL has this format:
   ;;  ((REQUESTED-FONT-NAME OPENED-FONT-NAME ...) ...)
@@ -915,7 +917,7 @@ The IGNORED argument is ignored."
                             (or adstyle "*") registry)))))
 
        ;; Insert opened font names (if any).
-       (if (and (boundp 'print-opened) (symbol-value 'print-opened))
+       (if (bound-and-true-p mule--print-opened)
            (dolist (opened (cdr elt))
              (insert "\n\t[" opened "]")))))))
 
@@ -943,8 +945,9 @@ the current buffer."
          " and [" (propertize "OPENED" 'face 'underline) "])")
   (let* ((info (fontset-info fontset))
         (default-info (char-table-extra-slot info 0))
+        (mule--print-opened print-opened)
         start1 end1 start2 end2)
-    (describe-vector info 'print-fontset-element)
+    (describe-vector info #'print-fontset-element)
     (when (char-table-range info nil)
       ;; The default of FONTSET is described.
       (setq start1 (re-search-backward "^default"))
@@ -956,7 +959,7 @@ the current buffer."
     (when default-info
       (insert "\n  ---<fallback to the default fontset>---")
       (put-text-property (line-beginning-position) (point) 'face 'highlight)
-      (describe-vector default-info 'print-fontset-element)
+      (describe-vector default-info #'print-fontset-element)
       (when (char-table-range default-info nil)
        ;; The default of the default fontset is described.
        (setq end2 (re-search-backward "^default"))
diff --git a/lisp/international/ogonek.el b/lisp/international/ogonek.el
index 79e4468..e049832 100644
--- a/lisp/international/ogonek.el
+++ b/lisp/international/ogonek.el
@@ -1,4 +1,4 @@
-;;; ogonek.el --- change the encoding of Polish diacritics
+;;; ogonek.el --- change the encoding of Polish diacritics  -*- 
lexical-binding: t; -*-
 
 ;; Copyright (C) 1997-1998, 2001-2021 Free Software Foundation, Inc.
 
diff --git a/lisp/international/quail.el b/lisp/international/quail.el
index f2ac44a..9698d46 100644
--- a/lisp/international/quail.el
+++ b/lisp/international/quail.el
@@ -1,4 +1,4 @@
-;;; quail.el --- provides simple input method for multilingual text
+;;; quail.el --- provides simple input method for multilingual text  -*- 
lexical-binding: t; -*-
 
 ;; Copyright (C) 1997-1998, 2000-2021 Free Software Foundation, Inc.
 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
@@ -1046,7 +1046,7 @@ the following annotation types are supported.
           (quail-install-decode-map ',decode-map))))))
 
 ;;;###autoload
-(defun quail-install-map (map &optional name)
+(defun quail-install-map (map &optional _name)
   "Install the Quail map MAP in the current Quail package.
 
 Optional 2nd arg NAME, if non-nil, is a name of Quail package for
@@ -1060,7 +1060,7 @@ The installed map can be referred by the function 
`quail-map'."
   (setcar (cdr (cdr quail-current-package)) map))
 
 ;;;###autoload
-(defun quail-install-decode-map (decode-map &optional name)
+(defun quail-install-decode-map (decode-map &optional _name)
   "Install the Quail decode map DECODE-MAP in the current Quail package.
 
 Optional 2nd arg NAME, if non-nil, is a name of Quail package for
@@ -1390,7 +1390,7 @@ Return the input string."
       (let* ((echo-keystrokes 0)
             (help-char nil)
             (overriding-terminal-local-map (quail-translation-keymap))
-            (generated-events nil)     ;FIXME: What is this?
+            ;; (generated-events nil)     ;FIXME: What is this?
             (input-method-function nil)
             (modified-p (buffer-modified-p))
             last-command-event last-command this-command inhibit-record)
@@ -1455,7 +1455,7 @@ Return the input string."
       (let* ((echo-keystrokes 0)
             (help-char nil)
             (overriding-terminal-local-map (quail-conversion-keymap))
-            (generated-events nil)     ;FIXME: What is this?
+            ;; (generated-events nil)     ;FIXME: What is this?
             (input-method-function nil)
             (modified-p (buffer-modified-p))
             last-command-event last-command this-command inhibit-record)
@@ -2452,7 +2452,7 @@ should be made by `quail-build-decode-map' (which see)."
               (insert-char ?- single-trans-width)
               (forward-line 1)
               ;; Insert the key-tran pairs.
-              (dotimes (row rows)
+              (dotimes (_ rows)
                 (let ((elt (pop single-list)))
                   (when elt
                     (move-to-column col)
@@ -2625,12 +2625,14 @@ KEY BINDINGS FOR CONVERSION
        (run-hooks 'temp-buffer-show-hook)))))
 
 (defun quail-help-insert-keymap-description (keymap &optional header)
+  (defvar the-keymap)
   (let ((pos1 (point))
+        (the-keymap keymap)
         pos2)
     (if header
        (insert header))
     (save-excursion
-      (insert (substitute-command-keys "\\{keymap}")))
+      (insert (substitute-command-keys "\\{the-keymap}")))
     ;; Skip headers "key bindings", etc.
     (forward-line 3)
     (setq pos2 (point))
diff --git a/lisp/international/robin.el b/lisp/international/robin.el
index 16cac07..55390df 100644
--- a/lisp/international/robin.el
+++ b/lisp/international/robin.el
@@ -1,4 +1,4 @@
-;;; robin.el --- yet another input method (smaller than quail)
+;;; robin.el --- yet another input method (smaller than quail)  -*- 
lexical-binding: t; -*-
 
 ;; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
diff --git a/lisp/international/utf-7.el b/lisp/international/utf-7.el
index e941abb..dece184 100644
--- a/lisp/international/utf-7.el
+++ b/lisp/international/utf-7.el
@@ -1,4 +1,4 @@
-;;; utf-7.el --- utf-7 coding system
+;;; utf-7.el --- utf-7 coding system  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2003-2021 Free Software Foundation, Inc.
 
diff --git a/lisp/startup.el b/lisp/startup.el
index 7011fbf..60e1a20 100644
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -320,6 +320,8 @@ early init file.")
 This variable is used to define the proper function and keypad
 keys for use under X.  It is used in a fashion analogous to the
 environment variable TERM.")
+(make-obsolete-variable 'keyboard-type nil "28.1")
+(internal-make-var-non-special 'keyboard-type)
 
 (defvar window-setup-hook nil
   "Normal hook run after loading init files and handling the command line.



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