* configure.in (ATTRIBUTE_FORMAT, ATTRIBUTE_FORMAT_PRINTF): New macros.

Merge changes from gnulib.

Merge from mainline.

* coding.c (DECODE_COMPOSITION_RULE): If the rule is invalid, goto invalid_code

directly, rather than having caller test rule sign.  This avoids
some unnecessary tests.
* composite.h (COMPOSITION_ENCODE_RULE_VALID): New macro.
(COMPOSITION_ENCODE_RULE): Arguments now must be valid.  This
affects only one use, in DECODE_COMPOSITION_RULE, which is changed.

* coding.c (EMIT_ONE_BYTE, EMIT_TWO_BYTES): Use unsigned, not int.

This avoids several warnings with gcc -Wstrict-overflow.

* xfont.c (xfont_open): Avoid unnecessary tests.

* xfont.c (xfont_text_extents): Remove var that was set but not used.

* composite.c (composition_gstring_put_cache): Use unsigned integer.

* lisp/net/rcirc.el: Update my e-mail address.

* lisp/net/rcirc.el (rcirc-mode-map): Remove M-o binding.

Fix theme and X-resource interactions for the cursor face.

* 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/help-fns.el: Fix mistake in previous change.

lisp/help-fns.el (describe-variable): Fix completion.

http://lists.gnu.org/archive/html/emacs-devel/2011-04/msg00112.html

* composite.h, composite.c (composition_gstring_put_cache):

Use EMACS_INT, not int, for length.

* composite.h (COMPOSITION_DECODE_REFS): New macro,

breaking out part of COMPOSITION_DECODE_RULE.
(COMPOSITION_DECODE_RULE): Use it.
* composite.c (get_composition_id): Remove unused local vars,
by using the new macro.

* textprop.c (set_text_properties_1): Change while to do-while,

since the condition is always true at first.

* intervals.c (interval_deletion_adjustment): Return unsigned value.

All uses changed.

gnus-sum.el (gnus-update-marks): Reinstate the code to not alter marks on non-selected articles.
gnus-start.el (gnus-get-unread-articles): Don't try to contact denied servers.

Convert some .el files to lexical scoping.

* bs.el (bs-refresh, bs-sort-buffer-interns-are-last)
  (bs--get-marked-string, bs--get-modified-string)
  (bs--get-readonly-string, bs--get-size-string, bs--get-name)
  (bs--get-mode-name, bs--get-file-name): Mark unused arguments.
  (bs--configuration-name-for-prefix-arg): Rename argument PREFIX-ARG.

* ehelp.el (electric-help-execute-extended)
  (electric-help-ctrl-x-prefix):
* hexl.el (hexl-revert-buffer-function):
* linum.el (linum-after-change, linum-after-scroll):
* emacs-lisp/re-builder.el (reb-auto-update): Mark unused arguments.

* help-fns.el (help-describe-category-set): Remove unused ERR variable.

lisp/dired.el: Update autoloads.

* intervals.c (graft_intervals_into_buffer): Mark var as used.

* process.c (read_process_output): Simplify nbytes computation if buffered.

* process.c (read_process_output): Do adaptive read buffering even if carryover.

* process.c (Fnetwork_interface_info): Avoid possibility of int overflow.

* process.c (create_pty): Remove unnecessary "volatile"s.

* process.c (list_processes_1, create_pty, read_process_output):

(exec_sentinel): Remove vars that were set but not used.

* bytecode.c (exec_byte_code): Rename local to avoid shadowing.

* syntax.c (update_syntax_table): Use unsigned instead of int.

* syntax.c (scan_words): Remove var that was set but not used.

* lread.c (safe_to_load_p): Make the end-of-loop test the inverse of the in-loop.

* lread.c (lisp_file_lexically_bound_p, read1): Use unsigned instead of int.

* lread.c (lisp_file_lexically_bound_p): Use ints rather than endptrs.

* print.c (print_error_message): Avoid int overflow.

* font.c (font_list_entities): Redo for clarity,

so that reader need not know FONT_DPI_INDEX + 1 == FONT_SPACING_INDEX.

Use lexical binding in ep[ga]*.el.

* epa-dired.el:
* epa-mail.el:
* epa-hook.el:
* epa-file.el:
* epa.el:
* epg.el: Use lexical binding.

* src/keyboard.c (safe_run_hook_funcall): Fix last change (don't stop at the
first non-nil return value).

* lisp/dired-aux.el (dired-create-files): Add docstring (Bug#7970).

Add changes to lisp/url/ChangeLog omitted from 2011-04-02T23:41:03Z!cyd@stupidchicken.com.

Improvements to flyspell-mark-duplications-exceptions.

* lisp/textmodes/flyspell.el (flyspell-word): Recognize default
dictionary case for flyspell-mark-duplications-exceptions.  Use
regexp matching for languages.
(flyspell-mark-duplications-exceptions): Add "that" and "had" for
default dictionary (Bug#7926).

* nsterm.m (ns_update_auto_hide_menu_bar): Define MAC_OS_X_VERSION_10_6
if not defined.

Fixes: debbugs:8403

* font.c (font_score): Avoid potential overflow in diff calculation.

* font.c (font_find_for_lface, Ffont_get_glyphs): Remove unused vars.

* fns.c (sxhash): Redo loop for clarity and to avoid wraparound warning.

* fns.c (substring_both): Remove var that is set but not used.

* eval.c (funcall_lambda): Rename local to avoid shadowing.

* alloc.c (mark_object_loop_halt, mark_object): Use size_t, not int.

Otherwise, GCC 4.6.0 optimizes the loop check away since the check
can always succeed if overflow has undefined behavior.

* search.c (wordify): Omit three unnecessary tests.

* search.c (boyer_moore, wordify): Remove vars set but not used.

* indent.c (MULTIBYTE_BYTES_WIDTH): Don't compute wide_column.

All callers changed.  This avoids the need for an unused var.

Fix missing NEWS subentry (Bug#8400).

* casefiddle.c (casify_region): Remove var that is set but not used.

* dired.c (file_name_completion): Remove var that is set but not used.

* fileio.c (Finsert_file_contents): Make EOF condition clearer.

src/xdisp.c: Remove some unused parameters.

* xdisp.c (display_count_lines): Remove parameter `start',
  unused since 1998-01-01T02:27:27Z!rms@gnu.org.  All callers changed.
  (get_char_face_and_encoding): Remove parameter `multibyte_p',
  unused since 2008-05-14T01:40:23Z!handa@m17n.org.  All callers changed.
  (fill_stretch_glyph_string): Remove parameters `row' and `area',
  unused at least since Kim's GUI unification at 2003-03-16T20:45:46Z!storm@cua.dk
  and thereabouts.  All callers changed.
  (get_per_char_metric): Remove parameter `f', unused since
  2008-05-14T01:40:23Z!handa@m17n.org.  All callers changed.

Merge open-protocol-stream into open-network-stream.

* lisp/subr.el (open-network-stream): Move to net/network-stream.el.

* lisp/gnus/proto-stream.el: Move to net/network-stream.el.

* lisp/net/network-stream.el: Move from gnus/proto-stream.el.
Change prefix to network-stream throughout.
(open-protocol-stream): Merge into open-network-stream, leaving
open-protocol-stream as an alias.  Handle nil BUFFER args.

* lisp/gnus/nnimap.el (nnimap-open-connection-1): Pass explicit :end-of-command
parameter to open-protocol-stream.

* lisp/emacs-lisp/package.el (package--with-work-buffer): Recognize
https URLs.

* lisp/url/url-gw.el (url-open-stream): Use new open-network-stream
functionality to perform encryption.

find-dired improvements for bug#4403.

* lisp/find-dired.el (find-exec-terminator): New option.
(find-ls-option): Test for -ls support.
(find-ls-subdir-switches): Test for -b in find-ls-option.
(find-dired, find-grep-dired): Doc fixes.
(find-dired): Use find-exec-terminator.

Remove some unnecessary purecopy's from find-dired.

* lisp/find-dired.el (find-ls-option, find-ls-subdir-switches)
(find-grep-options, find-name-arg): Remove purecopy.

Remove some autoload cookies on defcustoms in find-dired.

* lisp/find-dired.el (find-ls-option, find-ls-subdir-switches)
(find-grep-options): Do not autoload these defcustoms.

ChangeLog fix.

Use find -exec with '+' for grep-find if supported.

* lisp/progmodes/grep.el (grep-find-use-xargs): Doc fix.
(grep-compute-defaults): Check for `-exec COMMAND +' support.
Set grep-find-use-xargs, grep-find-command, and grep-find-template
accordingly.  Don't add the null-device if not needed.

* lisp/files.el (save-some-buffers): Doc fix.

do not dereference NULL upon failed strdup

* nsfont.m (ns_descriptor_to_entity): Use xstrdup, not strdup.
(ns_get_family): Likewise.

src/eval.c (unwind_to_catch) [DEBUG_GCPRO]: Remove redundant assignment.

A better default for $(EMACS) in lisp/makefile.w32-in.

 lisp/makefile.w32-in (EMACS): Default to ../src/$(BLD)/emacs.exe.

* fileio.c (Finsert_file_contents): Remove unnecessary code checking fd.

* fileio.c (Finsert_file_contents): Avoid signed integer overflow.

* minibuf.c (read_minibuf_noninteractive): Use size_t for sizes.

Check for integer overflow on size calculations.

* buffer.c (Fprevious_overlay_change): Remove var that is set

but not used.

* keyboard.c (timer_check_2): Mark vars as initialized.

* keyboard.c (timer_check_2): Don't assume timer-list and idle-timer-list are lists.

* nsterm.m (ns_update_auto_hide_menu_bar): Only for OSX 10.6 or later.

Fixes: debbugs:8403

Add Bug#.

* keyboard.c (menu_bar_items, read_char_minibuf_menu_prompt):

Remove vars that are set but not used.

* gtkutil.c (xg_get_file_with_chooser): Mark var as initialized.

* image.c (xbm_load): Use parse_p, for gcc -Werror=unused-but-set-variable.

* image.c (lookup_image): Remove var that is set but not used.

* fontset.c (Finternal_char_font, Ffontset_info): Remove vars

that are set but not used.

* xfns.c (make_invisible_cursor): Don't return garbage

if XCreateBitmapFromData fails.

* xselect.c (x_get_local_selection, x_handle_property_notify):

Remove vars that are set but not used.

(make_invisible_cursor): Initialize a possibly-uninitialized variable.

lisp/url/url-cookie.el: Use `dolist' rather than `mapcar'.

lisp/progmodes/idlwave.el: Use `dolist' rather than `mapcar'.

* xfns.c (x_create_tip_frame): Remove var that is set but not used.

* make-docfile.c (IF_LINT): New macro, copied from emacsclient.c.

(write_c_args): Use it to suppress GCC warning.

Merge from mainline.

* xterm.c (scroll_bar_windows_size): Now size_t, not int.

(x_send_scroll_bar_event): Use size_t, not int, for sizes.
Check for overflow.

* xterm.c (x_scroll_bar_to_input_event) [!USE_GTK]:

Remove var that is set but not used.

* xfaces.c (realize_named_face): Remove vars that are set but not used.

(map_tty_color) [!defined MSDOS]: Likewise.

* term.c (tty_write_glyphs): Use size_t; this avoids overflow warning.

* coding.c: Remove vars that are set but not used.

(DECODE_COMPOSITION_RULE): Remove 2nd arg, which is unused.
All callers changed.
(decode_coding_utf_8, decode_coding_utf_16 decode_coding_emacs_mule):
(decode_coding_iso_2022, encode_coding_sjis, encode_coding_big5):
(decode_coding_charset): Remove vars that are set but not used.

Merge from lexical-binding branch.
* doc/lispref/eval.texi (Eval): Discourage the use of `eval'.
Document its new `lexical' argument.

* doc/lispref/variables.texi (Defining Variables): Mention the new meaning of `defvar'.
(Lexical Binding): New sub-section.

* lisp/Makefile.in (BIG_STACK_DEPTH, BIG_STACK_OPTS, BYTE_COMPILE_FLAGS):
New variables.
(compile-onefile, .el.elc, compile-calc, recompile): Use them.
(COMPILE_FIRST): Add macroexp and cconv.
* lisp/makefile.w32-in: Mirror changes in Makefile.in.

* lisp/vc/cvs-status.el:
* lisp/vc/diff-mode.el:
* lisp/vc/log-edit.el:
* lisp/vc/log-view.el:
* lisp/vc/smerge-mode.el:
* lisp/textmodes/bibtex-style.el:
* textmodes/css.el:
* lisp/startup.el:
* lisp/uniquify.el:
* lisp/minibuffer.el:
* lisp/newcomment.el:
* lisp/reveal.el:
* lisp/server.el:
* lisp/mpc.el:
* lisp/emacs-lisp/smie.el:
* lisp/doc-view.el:
* lisp/dired.el:
* lisp/abbrev.el: Use lexical binding.

* lisp/custom.el (custom-initialize-default, custom-declare-variable):
Use `defvar'.

* lisp/files.el (lexical-binding): Declare safe.

* lisp/help-fns.el (help-split-fundoc): Return nil if there's nothing else
than the arglist.
(help-add-fundoc-usage): Don't add `Not documented'.
(help-function-arglist): Handle closures, subroutines, and new
byte-code-functions.
(help-make-usage): Remove leading underscores.
(describe-function-1): Handle closures.
(describe-variable): Use special-variable-p for completion.

* lisp/simple.el (with-wrapper-hook, apply-partially): Move to subr.el.

* lisp/subr.el (apply-partially): Use new closures rather than CL.
(--dolist-tail--, --dotimes-limit--): Don't declare dynamic.
(dolist, dotimes): Use slightly different expansion for lexical code.
(functionp): Move to C.
(letrec): New macro.
(with-wrapper-hook): Use it and apply-partially instead of CL.
(eval-after-load): Preserve lexical-binding.
(save-window-excursion, with-output-to-temp-buffer): Turn them
into macros.

* lisp/emacs-lisp/advice.el (ad-arglist): Use help-function-arglist.

* lisp/emacs-lisp/autoload.el (make-autoload): Don't burp on trivial macros.

* lisp/emacs-lisp/byte-opt.el: Use lexical binding.
(byte-inline-lapcode): Remove (to bytecomp).
(byte-compile-inline-expand): Pay attention to inlining to/from
lexically bound code.
(byte-compile-unfold-lambda): Don't handle byte-code-functions
any more.
(byte-optimize-form-code-walker): Don't handle save-window-excursion
any more and don't call compiler-macros.
(byte-compile-splice-in-already-compiled-code): Remove.
(byte-code): Don't inline any more.
(disassemble-offset): Receive `bytes' as argument rather than via
dynamic scoping.
(byte-compile-tag-number): Declare before first use.
(byte-decompile-bytecode-1): Handle new byte-codes, don't change
`return' even if make-spliceable.
(byte-compile-side-effect-and-error-free-ops): Add stack-ref, remove
obsolete interactive-p.
(byte-optimize-lapcode): Optimize new lap-codes.
Don't trip up on new form of `byte-constant' lap code.

* lisp/emacs-lisp/byte-run.el (make-obsolete): Don't set the `byte-compile'
handler any more.

* lisp/emacs-lisp/bytecomp.el: Use lexical binding instead of
a "bytecomp-" prefix.  Macroexpand everything as a separate phase.
(byte-compile-initial-macro-environment):
Handle declare-function here.
(byte-compile--lexical-environment): New var.
(byte-stack-ref, byte-stack-set, byte-discardN)
(byte-discardN-preserve-tos): New lap codes.
(byte-interactive-p): Don't use any more.
(byte-compile-push-bytecodes, byte-compile-push-bytecode-const2):
New macros.
(byte-compile-lapcode): Use them and handle new lap codes.
(byte-compile-obsolete): Remove.
(byte-compile-arglist-signature): Handle new byte-code arg"lists".
(byte-compile-arglist-warn): Check late def of inlinable funs.
(byte-compile-cl-warn): Don't silence warnings for compiler-macros
since they should have been expanded by now.
(byte-compile--outbuffer): Rename from bytecomp-outbuffer.
(byte-compile-from-buffer): Remove unused second arg.
(byte-compile-preprocess): New function.
(byte-compile-toplevel-file-form): New function to distinguish
file-form calls from outside from file-form calls from hunk-handlers.
(byte-compile-file-form): Simplify.
(byte-compile-file-form-defsubst): Remove.
(byte-compile-file-form-defmumble): Simplify now that
byte-compile-lambda always returns a byte-code-function.
(byte-compile): Preprocess.
(byte-compile-byte-code-maker, byte-compile-byte-code-unmake):
Remove, not used any more.
(byte-compile-arglist-vars, byte-compile-make-lambda-lexenv)
(byte-compile-make-args-desc): New funs.
(byte-compile-lambda): Handle lexical functions.  Always return
a byte-code-function.
(byte-compile-reserved-constants): New var, to make up room for
closed-over variables.
(byte-compile-constants-vector): Obey it.
(byte-compile-top-level): New args `lexenv' and `reserved-csts'.
(byte-compile-macroexpand-declare-function): New function.
(byte-compile-form): Call byte-compile-unfold-bcf to inline immediate
byte-code-functions.
(byte-compile-form): Check obsolescence here.
(byte-compile-inline-lapcode, byte-compile-unfold-bcf): New functions.
(byte-compile-variable-ref): Remove.
(byte-compile-dynamic-variable-op): New fun.
(byte-compile-dynamic-variable-bind, byte-compile-variable-ref)
(byte-compile-variable-set): New funs.
(byte-compile-discard): Add 2 args.
(byte-compile-stack-ref, byte-compile-stack-set)
(byte-compile-make-closure, byte-compile-get-closed-var): New funs.
(byte-compile-funarg, byte-compile-funarg-2): Remove, handled in
macroexpand-all instead.
(byte-compile-quote-form): Remove.
(byte-compile-push-binding-init, byte-compile-not-lexical-var-p)
(byte-compile-bind, byte-compile-unbind): New funs.
(byte-compile-let): Handle let* and lexical binding.
(byte-compile-let*): Remove.
(byte-compile-catch, byte-compile-unwind-protect)
(byte-compile-track-mouse, byte-compile-condition-case):
Handle a new :fun-body form, used for lexical scoping.
(byte-compile-save-window-excursion)
(byte-compile-with-output-to-temp-buffer): Remove.
(byte-compile-defun): Simplify.
(byte-compile-stack-adjustment): New fun.
(byte-compile-out): Use it.
(byte-compile-refresh-preloaded): Don't reload byte-compiler files.

* lisp/emacs-lisp/cconv.el: New file.

* lisp/emacs-lisp/cl-extra.el (cl-macroexpand-all): Properly quote CL
closures.

* lisp/emacs-lisp/cl-macs.el (cl-byte-compile-block)
(cl-byte-compile-throw): Remove.
(cl-block-wrapper, cl-block-throw): Use compiler-macros instead.

* lisp/emacs-lisp/cl.el (pushnew): Silence warning.

* lisp/emacs-lisp/disass.el (disassemble-internal): Handle new
`closure' objects.
(disassemble-1): Handle new byte codes.

* lisp/emacs-lisp/edebug.el (edebug-eval-defun)
(edebug-eval-top-level-form): Use eval-sexp-add-defvars.
(edebug-toggle): Avoid `eval'.

* lisp/emacs-lisp/eieio-comp.el: Remove.

* lisp/emacs-lisp/eieio.el (byte-compile-file-form-defmethod):
Don't autoload.
(eieio-defgeneric-form-primary-only-one): Use `byte-compile' rather
than the internal `byte-compile-lambda'.
(defmethod): Don't hide code under quotes.
(eieio-defmethod): New `code' argument.

* lisp/emacs-lisp/float-sup.el (pi): Don't declare as dynamically bound.

* lisp/emacs-lisp/lisp-mode.el (eval-last-sexp-1):
Use eval-sexp-add-defvars.
(eval-sexp-add-defvars): New fun.

* lisp/emacs-lisp/macroexp.el: Use lexical binding.
(macroexpand-all-1): Check obsolete macros.  Expand compiler-macros.
Don't convert ' to #' without checking that it's indeed quoting
a lambda.

* lisp/emacs-lisp/pcase.el: Don't use destructuring-bind.
(pcase--memoize): Rename from pcase-memoize.  Change weakness.
(pcase): Add `let' pattern.
Change memoization so it actually works.
(pcase-mutually-exclusive-predicates): Add byte-code-function-p.
(pcase--u1) <guard, pred>: Fix possible shadowing problem.
<let>: New case.

* src/alloc.c (Fmake_symbol): Init new `declared_special' field.

* src/buffer.c (defvar_per_buffer): Set new `declared_special' field.

* src/bytecode.c (Bstack_ref, Bstack_set, Bstack_set2, BdiscardN):
New byte-codes.
(exec_byte_code): New function extracted from Fbyte_code to handle new
calling convention for byte-code-functions.  Add new byte-codes.

* src/callint.c (Fcall_interactively): Preserve lexical-binding mode for
interactive spec.

* src/doc.c (Fdocumentation, store_function_docstring):
* src/data.c (Finteractive_form): Handle closures.

* src/eval.c (Fsetq): Handle lexical vars.
(Fdefun, Fdefmacro, Ffunction): Make closures when needed.
(Fdefconst, Fdefvaralias, Fdefvar): Mark as dynamic.
(FletX, Flet): Obey lexical binding.
(Fcommandp): Handle closures.
(Feval): New `lexical' arg.
(eval_sub): New function extracted from Feval.  Use it almost
everywhere where Feval was used.  Look up vars in lexical env.
Handle closures.
(Ffunctionp): Move from subr.el.
(Ffuncall): Handle closures.
(apply_lambda): Remove `eval_flags'.
(funcall_lambda): Handle closures and new byte-code-functions.
(Fspecial_variable_p): New function.
(syms_of_eval): Initialize the Vinternal_interpreter_environment var,
but without exporting it to Lisp.

* src/fns.c (concat, mapcar1): Accept byte-code-functions.

* src/image.c (parse_image_spec): Use Ffunctionp.

* src/keyboard.c (eval_dyn): New fun.
(menu_item_eval_property): Use it.

* src/lisp.h (struct Lisp_Symbol): New field `declared_special'.

* src/lread.c (lisp_file_lexically_bound_p): New function.
(Fload): Bind Qlexical_binding.
(readevalloop): Remove `evalfun' arg.
Bind Qinternal_interpreter_environment.
(Feval_buffer): Bind Qlexical_binding.
(defvar_int, defvar_bool, defvar_lisp_nopro, defvar_kboard):
Mark as dynamic.
(syms_of_lread): Declare `lexical-binding'.

* src/window.c (Ftemp_output_buffer_show): New fun.
(Fsave_window_excursion):
* src/print.c (Fwith_output_to_temp_buffer): Move to subr.el.

Miscellanous cleanups in preparation for the merge.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
Remove debug statement.
* lisp/emacs-lisp/bytecomp.el (byte-compile-single-version)
(byte-compile-version-cond, byte-compile-delay-out)
(byte-compile-delayed-out): Remove, unused.
* src/bytecode.c (Fbyte_code): Revert to old calling convention.
* src/lisp.h (COMPILED_PUSH_ARGS): Remove, unused.

mm-view.el (mm-display-inline-fontify): Do not fontify with fundamental-mode.

Add a new command `info-display-manual'.

 lisp/info.el (info-display-manual): New function.

* bytecode.c (Fbyte_code) [!defined BYTE_CODE_SAFE]: Remove var

that is set but not used.

Add Bug#.

* print.c (print_object): Remove var that is set but not used.

Fix dependencies.

Replace two copies of readlink code with single gnulib version.

lib/stdio.in.h, m4/gnulib-common.m4: Regenerate from latest gnulib.

src/xdisp.c (redisplay_internal): Fix prototype.