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their respective macro declarations.
* lisp/skeleton.el (define-skeleton):
* lisp/progmodes/compile.el (define-compilation-mode):
* lisp/ibuf-macs.el (define-ibuffer-sorter, define-ibuffer-op)
(define-ibuffer-filter):
* lisp/emacs-lisp/generic.el (define-generic-mode):
* lisp/emacs-lisp/easy-mmode.el (define-minor-mode)
(define-globalized-minor-mode):
* lisp/emacs-lisp/cl-macs.el (defun*, defmacro*, defstruct, deftype):
* lisp/emacs-lisp/byte-run.el (defsubst):
* lisp/custom.el (deftheme): Add doc-string metadata.

(byte-compile-file-form-custom-declare-variable): Compile all elements,
since cconv.el might have introduced :fun-body, internal-make-closure,
and friends for bytecomp to handle.
* lisp/custom.el (defcustom): Avoid ((λ ..) ..).

Fixes: debbugs:11391

* doc/lispref/customize.texi (Applying Customizations):
(Custom Themes): New nodes.

* doc/lispref/display.texi (Defining Faces): Reference custom-set-faces.

* doc/lispref/modes.texi (Defining Minor Modes, Defining Minor Modes):
* doc/lispref/os.texi (Startup Summary): Copyedits.

* doc/emacs/custom.texi (Creating Custom Themes): Add reference to Custom
Themes node in Lisp manual.

* lisp/custom.el (custom-theme-set-variables): Doc fix.

* lisp/apropos.el (apropos-variable):
* lisp/files-x.el (read-file-local-variable):
* lisp/simple.el (set-variable):
* lisp/woman.el (woman-mini-help):
* lisp/emacs-lisp/byte-opt.el (side-effect-free-fns): Callers changed.

* lisp/custom.el (custom-variable-p): Return nil for non-symbol
arguments instead of signaling an error.
(user-variable-p): Obsolete alias for custom-variable-p.

* lisp/erc/erc.el (erc-cmd-SET): Call custom-variable-p instead of
user-variable-p.

* src/callint.c (Finteractive, Fcall_interactively):
* src/minibuf.c (Fread_variable): Callers changed.

* src/eval.c (Fuser_variable_p, user_variable_p_eh)
(lisp_indirect_variable): Functions deleted.
(Fdefvar): Caller changed.

* doc/lispref/commands.texi (Interactive Codes):
* doc/lispref/help.texi (Accessing Documentation):
* doc/lispref/minibuf.texi (High-Level Completion): Callers changed.

* doc/lispref/customize.texi (Variable Definitions): Remove user-variable-p.

* lisp/custom.el (load-theme): Even if NO-ENABLE arg is t, reenable the
theme if it was previously enabled before (Bug#11031).

* lisp/cus-theme.el (customize-create-theme, custom-theme-revert): Doc fixes.

* lisp/custom.el (defcustom): Doc fix; note use of defvar.

* src/eval.c (Fdefvar, Fdefconst): Doc fix; note that the variable is
marked as special.  Also, starting docstrings with * is obsolete.

Fixes: debbugs:9711

* doc/lispref/customize.texi (Common Keywords): Minor clarifications.
Document custom-unlispify-remove-prefixes.
(Variable Definitions): Backquotes in defcustom seem to work fine
now.  Various other copyedits.

* doc/lispref/macros.texi (Expansion): Minor clarification.
(Backquote): Move node to eval.texi.
(Defining Macros): Move an example from Backquote node.
(Argument Evaluation): No need to mention Pascal.
(Indenting Macros): Add xref to Defining Macros.

* doc/lispref/eval.texi (Backquote): Move from macros.texi.

* lisp/custom.el (defcustom): Doc fix.

* lisp/custom.el (custom-variable-p): Doc fix.

* src/eval.c (Fuser_variable_p): Doc fix; mention custom-variable-p.

* doc/emacs/custom.texi (Custom Themes): Switched custom-safe-themes
to use SHA-256.

* lisp/cus-theme.el (custom-theme-merge-theme): Ignore
custom-enabled-themes and custom-safe-themes.

* lisp/custom.el (enable-theme): Don't set custom-safe-themes.

See http://lists.gnu.org/archive/html/emacs-devel/2011-09/msg00121.html

* lisp/custom.el (custom-safe-themes, load-theme): Treat value of t for
custom-safe-themes as special.

initialization.
* lisp/custom.el (custom-initialize-delay): Doc fix.

* lisp/custom.el (custom-push-theme): Don't record faces in `changed'
theme; this doesn't work correctly for per-frame face settings.
(disable-theme): Use face-set-after-frame-default to reset faces.
(custom--frame-color-default): New function.

* lisp/frame.el (frame-background-mode, frame-set-background-mode):
Moved from faces.el.
(frame-default-terminal-background): New function.

* src/xfaces.c (Finternal_merge_in_global_face): Modify the foreground
and background color parameters if they have been changed.

(bug#6089).

* lisp/cus-edit.el (customize-push-and-save): New function.

* lisp/files.el (hack-local-variables-confirm): Use it.

* lisp/custom.el (load-theme): New arg NO-CONFIRM.  Use
customize-push-and-save (Bug#8720).
(custom-enabled-themes): Doc fix.

* lisp/cus-theme.el (customize-create-theme)
(custom-theme-merge-theme): Callers to load-theme changed.

* lisp/startup.el (command-line): Save the cursor's theme-face
directly, instead of using face-override-spec.

* lisp/custom.el (load-theme): Minor optimization in assigning faces.

* lisp/custom.el (custom--inhibit-theme-enable): Make it affect only
custom-theme-set-variables and custom-theme-set-faces.
(provide-theme): Ignore custom--inhibit-theme-enable.
(load-theme): Enable the theme explicitly if NO-ENABLE is non-nil.
(custom-enabling-themes): Delete variable.
(enable-theme): Accept only loaded themes as arguments.  Ignore
the special custom-enabled-themes variable.
(custom-enabled-themes): Forbid themes from setting this.
Eliminate use of custom-enabling-themes.
(custom-push-theme): Quote "changed" custom var entry.

* custom.el (custom-known-themes): Reflow docstring.
  (custom-theme-load-path): Fix typo in docstring.
  (load-theme): Fix typo in error message.
  (custom-available-themes, custom-variable-theme-value):
  Use `let', not `let*'.

(Lexical Binding): New node.
* doc/lispref/eval.texi (Eval): Add `eval's new `lexical' arg.
* lisp/emacs-lisp/cconv.el (cconv-liftwhen): Increase threshold.
(cconv-closure-convert-rec): Convert interactive spec in empty lexenv.
(cconv-analyse-use): Improve unused vars warnings.
(cconv-analyse-form): Analyze interactive spec in empty lexenv.
* lisp/emacs-lisp/bytecomp.el (byte-compile-lambda): Always byte-compile
the interactive spec in lexical-binding mode.
(byte-compile-refresh-preloaded): Don't reload byte-compiler files.
* lisp/custom.el (custom-initialize-default): Use defvar.
(custom-declare-variable): Set the special-variable-p flag.
* lisp/help-fns.el (help-make-usage): Drop leading underscores.
* lisp/dired.el (dired-revert, dired-make-relative): Mark unused args.
(dired-unmark-all-files): Remove unused var `query'.
(dired-overwrite-confirmed): Declare.
(dired-restore-desktop-buffer): Don't use dynamically scoped arg names.
* lisp/mpc.el: Mark unused args.
(mpc--faster-toggle): Remove unused var `songnb'.
* lisp/server.el (server-kill-buffer-running): Move before first use.
* lisp/minibuffer.el: Mark unused args.
* src/callint.c (quotify_arg): Simplify the logic.
(Fcall_interactively): Use lexical binding when evaluating the
interactive spec of a lexically bound function.

* lisp/custom.el (load-theme): Define return value.  Drop use of
unsafep; call custom-theme-load-confirm for non-known-safe themes.
(custom-theme-load-confirm): Scroll in the correct window.
(custom-enabled-themes): Add custom-safe-themes to :set-after.

* lisp/cus-theme.el (custom-theme-checkbox-toggle): Don't activate the
checkbox if load-theme fails.

* lisp/custom.el (custom-safe-themes): Rename from
custom-safe-theme-files.  Add :risky tag.
(load-theme, custom-theme-load-confirm): Save sha1 hashes to
custom-safe-themes, not filenames.  Suggested by Stefan Monnier.

* custom.el (custom-safe-theme-files): New defcustom.
(custom-theme-load-confirm): New function.
(load-theme): Load theme using `load', confirming with
custom-theme-load-confirm if necessary.

* cus-face.el (custom-theme-set-faces): Revert 2010-10-18 change.
Don't mark as safe.

* custom.el (custom-theme-set-variables): Likewise.
(load-theme): Add custom-theme-set-faces and
custom-theme-set-variables to safe-functions while loading.
(custom-enabled-themes): Mark as risky.

* cus-face.el (custom-theme-set-faces): Mark as a safe function.

* custom.el (custom-theme-set-variables): Mark as a safe function.
(load-theme): Check forms using unsafep.

* cus-theme.el (custom-theme--migrate-settings): New var.
(customize-create-theme): Allow editing the `user' theme.
(custom-theme-add-variable, custom-theme-add-var-1)
(custom-theme-add-face, custom-theme-add-face-1): Add a checkbox
to the front of each variable or face widget.
(custom-theme-write): Save theme settings in the correct order.
Optionally, remove saved settings from user customizations.
(custom-theme-write-variables, custom-theme-write-faces): Saved
only the checked widgets.
(customize-themes): Add a link for migrating custom settings.

* custom.el (custom-declare-theme, provide-theme): Use
custom-theme-name-valid-p.
(custom-theme-name-valid-p): Remove checks that are now
unnecessary since themes no longer obey load-path.

* cus-edit.el (custom-variable-value-create): For the simple
style, hide documentation string when hidden.