Quieten cl-lib related compiler warnings

* lisp/completion.el (cl-set-difference):
* lisp/files.el (map-merge-with, map-merge):
* lisp/emacs-lisp/radix-tree.el (map-apply): Declare.
* lisp/emacs-lisp/thunk.el: Load cl-lib at run-time, not
cl-macs at compile.
* lisp/gnus/gnus-group.el: Load cl-lib at run-time, not cl at compile.
* lisp/emacs-lisp/checkdoc.el, lisp/emacs-lisp/package.el
* lisp/gnus/gnus-sum.el, lisp/gnus/message.el, lisp/net/shr.el:
Load cl-lib at run-time.
* lisp/gnus/mml-sec.el (mml-signencrypt-style)
(mml-secure-cust-record-keys): Replace cl with cl-lib,
and load it at run-time.
* lisp/cedet/ede/linux.el, lisp/vc/vc-hg.el: Reorder requires.

lisp/cedet/ede/linux.el

@@ -32,10 +32,9 @@
 ;; * Add texinfo lookup options.
 ;; * Add website
 
-(eval-when-compile (require 'cl))
-
 (require 'ede)
 (require 'ede/make)
+(eval-when-compile (require 'cl))
 
 (declare-function semanticdb-file-table-object "semantic/db")
 (declare-function semanticdb-needs-refresh-p "semantic/db")

lisp/completion.el

@@ -2225,6 +2225,8 @@ TYPE is the type of the wrapper to be added.  Can be :before or :under."
       (modify-syntax-entry char "_" table))
     table))
 
+(declare-function cl-set-difference "cl-seq" (cl-list1 cl-list2 &rest cl-keys))
+
 (defun completion-lisp-mode-hook ()
   (require 'cl-lib)
   (setq completion-syntax-table completion-lisp-syntax-table)

lisp/emacs-lisp/checkdoc.el

@@ -171,7 +171,7 @@
 (defvar checkdoc-version "0.6.1"
   "Release version of checkdoc you are currently running.")
 
-(eval-when-compile (require 'cl-lib))
+(require 'cl-lib)
 (require 'help-mode) ;; for help-xref-info-regexp
 (require 'thingatpt) ;; for handy thing-at-point-looking-at
 

lisp/emacs-lisp/package.el

@@ -143,8 +143,8 @@
 
 ;;; Code:
 
+(require 'cl-lib)
 (eval-when-compile (require 'subr-x))
-(eval-when-compile (require 'cl-lib))
 (eval-when-compile (require 'epg))      ;For setf accessors.
 (require 'seq)
 

lisp/emacs-lisp/radix-tree.el

@@ -235,6 +235,8 @@ PREFIX is only used internally."
     (radix-tree-iter-mappings tree (lambda (_k _v) (setq i (1+ i))))
     i))
 
+(declare-function map-apply "map" (function map))
+
 (defun radix-tree-from-map (map)
   ;; Aka (cl-defmethod map-into (map (type (eql radix-tree)))) ...)
   (require 'map)

lisp/emacs-lisp/thunk.el

@@ -48,7 +48,7 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl-macs))
+(require 'cl-lib)
 
 (defmacro thunk-delay (&rest body)
   "Delay the evaluation of BODY."

lisp/files.el

@@ -4012,6 +4012,9 @@ This function returns either:
       ;; No cache entry.
       locals-dir)))
 
+(declare-function map-merge-with "map" (type function &rest maps))
+(declare-function map-merge "map" (type &rest maps))
+
 (defun dir-locals-read-from-dir (dir)
   "Load all variables files in DIR and register a new class and instance.
 DIR is the absolute name of a directory which must contain at

lisp/gnus/gnus-group.el

@@ -24,10 +24,7 @@
 
 ;;; Code:
 
-(eval-when-compile
-  (require 'cl))
-(defvar tool-bar-mode)
-
+(require 'cl-lib)
 (require 'gnus)
 (require 'gnus-start)
 (require 'nnmail)
@@ -46,6 +43,8 @@
   (unless (boundp 'gnus-cache-active-hashtb)
     (defvar gnus-cache-active-hashtb nil)))
 
+(defvar tool-bar-mode)
+
 (autoload 'gnus-agent-total-fetched-for "gnus-agent")
 (autoload 'gnus-cache-total-fetched-for "gnus-cache")
 

lisp/gnus/gnus-sum.el

@@ -24,7 +24,7 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl))
+(require 'cl-lib)
 
 (defvar tool-bar-mode)
 (defvar gnus-tmp-header)

lisp/gnus/message.el

@@ -28,8 +28,7 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl-lib))
-
+(require 'cl-lib)
 (require 'mailheader)
 (require 'gmm-utils)
 (require 'mail-utils)

lisp/gnus/mml-sec.el

@@ -23,7 +23,7 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl))
+(require 'cl-lib)
 
 (require 'gnus-util)
 (require 'epg)
@@ -167,9 +167,9 @@ You can also customize or set `mml-signencrypt-style-alist' instead."
 	(if (or (eq style 'separate)
 		(eq style 'combined))
 	    ;; valid style setting?
-	    (setf (second style-item) style)
+	    (setf (cadr style-item) style)
 	  ;; otherwise, just return the current value
-	  (second style-item))
+	  (cadr style-item))
       (message "Warning, attempt to set invalid signencrypt style"))))
 
 ;;; Security functions
@@ -554,7 +554,7 @@ customized in this variable."
   "For CONTEXT, USAGE, and NAME record fingerprint(s) of KEYS.
 If optional SAVE is not nil, save customized fingerprints.
 Return keys."
-  (assert keys)
+  (cl-assert keys)
   (let* ((usage-prefs (mml-secure-cust-usage-lookup context usage))
 	 (curr-fprs (cdr (assoc name (cdr usage-prefs))))
 	 (key-fprs (mapcar 'mml-secure-fingerprint keys))

lisp/net/shr.el

@@ -30,7 +30,7 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl-lib))
+(require 'cl-lib)
 (eval-when-compile (require 'url))      ;For url-filename's setf handler.
 (require 'browse-url)
 (eval-when-compile (require 'subr-x))

lisp/vc/vc-hg.el

@@ -101,12 +101,12 @@
 
 ;;; Code:
 
+(require 'cl-lib)
+
 (eval-when-compile
   (require 'vc)
   (require 'vc-dir))
 
-(require 'cl-lib)
-
 (declare-function vc-compilation-mode "vc-dispatcher" (backend))
 
 ;;; Customization options