* lisp/progmodes/cc-mode.el (c-initialize-cc-mode): Don't quote a symbol
just to then pass it to `symbol-value'.
(prog-mode): Provide fallback definition, if needed.
* lisp/progmodes/cc-langs.el: Always load `cl'. Don't load `cl-lib'.
Remove "cl-" prefix accordingly.
* lisp/progmodes/cc-fonts.el (c-font-lock-invalid-string): Use integerp or
characterp depending on the type of characters.
(c-font-lock-enum-tail): Remove unused var `start'.
* lisp/progmodes/cc-engine.el: Load CL at compile-time.
(c-declare-lang-variables): Use mapcan.
(c-append-to-state-cache): Remove unused var `ce+1'.
(c-parse-state-state): Make buffer-local.
(c-ssb-lit-begin): Remove unused var `pps-end-pos'.
(c-just-after-func-arglist-p): Remove unused var `end'.
* lisp/progmodes/cc-defs.el: Load cc-fix if delete-dups is undefined.
(c-<-as-paren-syntax, c->-as-paren-syntax): Move definition earlier.
(c-make-keywords-re): Use delete-dups.
(c-get-current-file): Avoid file-name-base.
* lisp/progmodes/cc-cmds.el (c-electric-lt-gt): Remove unused var
`close-paren-inserted'.
* lisp/progmodes/cc-awk.el (c-forward-sws): Remove unused declaration.
* frame.el (toggle-frame-maximized, toggle-frame-fullscreen):
In doc-string mention need of setting `frame-resize-pixelwise'.
* frames.texi (Frame Commands):
* cmdargs.texi (Window Size X): Mention the use of
`frame-resize-pixelwise' to make frames truly fullscreen or
maximized.
* frames.texi (Size Parameters, Size and Position): Mention that
with some window managers you have to set
`frame-resize-pixelwise' in order make a frame truly fullscreen
or maximized.
* xselect.c (X_SHRT_MAX, X_SHRT_MIN, X_LONG_MAX, X_LONG_MIN)
(X_ULONG_MAX): Move these macros to xterm.h.
(x_fill_property_data): Be more generous about allowing either
signed or unsigned data of the appropriate width.
* xterm.h (x_display_set_last_user_time): New function.
All setters of last_user_time changd to use this function.
If ENABLE_CHECKING, check that the times are in range.
Fixes: debbugs:18586
* lisp/select.el (gui-get-selection-alist): New method.
(gui-get-selection): Use it. Rename from x-get-selection.
(x-get-selection): Define as obsolete alias.
(x-get-clipboard): Mark obsolete.
(gui-get-primary-selection): New function.
(x-get-selection-value): Mark obsolete.
(gui-own-selection-alist, gui-disown-selection-alist)
(gui-selection-owner-p-alist): New methods.
(gui-set-selection): Use them. Rename from x-set-selection.
(x-set-selection): Define as obsolete alias.
(gui--valid-simple-selection-p): Rename from
x-valid-simple-selection-p.
* lisp/w32-common-fns.el (gui-own-selection, gui-disown-selection)
(gui-selection-owner-p, gui-get-selection): Define for w32.
(w32-get-selection-value): Rename from x-get-selection-value.
Use the new gui-last-selected-text.
* lisp/term/x-win.el (x-get-selection-value): Remove.
(x-clipboard-yank): Declare obsolete.
(gui-own-selection, gui-disown-selection, gui-get-selection)
(gui-selection-owner-p): Define for x.
* lisp/term/w32-win.el (w32-win-suspend-error): Rename from
x-win-suspend-error.
* lisp/term/pc-win.el (w16-get-selection-value): Rename from
x-get-selection-value.
(w16-selection-owner-p): Rename from x-selection-owner-p.
(gui-own-selection, gui-disown-selection, gui-get-selection)
(gui-selection-owner-p): Define for pc.
(w16--select-text): New function.
* lisp/term/ns-win.el (gui-own-selection, gui-disown-selection)
(gui-get-selection, gui-selection-owner-p): Define for ns.
* lisp/term.el (term-mouse-paste):
* lisp/mouse.el (mouse-yank-primary): Use gui-get-primary-selection.
* src/nsselect.m (ns-own-selection-internal, ns-disown-selection-internal):
Rename from the "x-" prefix.
