gnus-art.el, mm-uu.el: Misc improvements for displaying MIME parts

* gnus-art.el (gnus-mime-inline-part, gnus-mm-display-part):
Work for the last MIME part in an article.
(gnus-mime-display-single): Suppress excessive newlines between parts.

* mm-uu.el (mm-uu-dissect): Assume that separators may be accompanied
by leading or trailing newline.

Optimize away some compat-cruft in printing.el

* lisp/printing.el (subst-char-in-string, make-temp-file, pr-get-symbol):
Optimize on Emacs, which has the relevant functions for ages.

* texinfo.tex: Update from gnulib.

* merge-gnulib: Defer to autogen.sh for ACLOCAL_PATH computation.

* keyboard.c (Qdeactivate_mark): Now static.

* lisp/simple.el (undo-make-selective-list): Obey undo-no-redo.

If available, use Xfixes extension to do pointer blanking.

* configure.ac (HAVE_XFIXES): Define if available.
(XFIXES_CFLAGS, XFIXES_LIBS): New AC_SUBSTs.
* src/Makefile.in (XFIXES_CFLAGS, XFIXES_LIBS): New var.
* src/xfns.c (x_set_mouse_color): Do not call make_invisible_cursor here.
(make_invisible_cursor): Move to...
* src/xterm.c (make_invisible_cursor): ...here.
(x_probe_xfixes_extension, xfixes_toggle_visible_pointer)
(x_toggle_visible_pointer, x_setup_pointer_blanking): New functions.
(x_term_init): Call to x_setup_pointer_blanking.
(XTtoggle_invisible_pointer): Use blanking specific to this display.
* src/xterm.h (struct x_display_info): New member toggle_visible_pointer.

* configure.ac (--enable-link-time-optimization): Add clang support.
* INSTALL: Mention it.
* etc/PROBLEMS: Mention potential problems with
--enable-link-time-optimization and clang on Fedora 20.

avoid function from `cl'

(seconds-to-string): New function to pretty print time delay in seconds.

* lisp/net/rcirc.el (rcirc-reconnect-delay): Add :version.
Defcustoms docs do not need leading "*", for some years.

* lisp/mpc.el (mpc-format): Trim Date to the year.
(mpc-songs-hashcons): Shorten the Date field.

* xdisp.c (draw_glyphs): Set clipping to highlight boundaries.

Merge from emacs-24; up to 2014-05-12T06:15:47Z!rgm@gnu.org

Regenerate AUTHORS and ldefs-boot.el

Bump version to 24.3.91

ob-screen tempfile fixes

* lisp/org/ob-screen.el (org-babel-screen-session-write-temp-file)
(org-babel-screen-test): Use unpredictable names for temporary files.

Fixes: debbugs:17416

* configure.ac (EMACS_CHECK_MODULES): Fix typo in previous change.

* lisp/emacs-lisp/nadvice.el (advice--interactive-form): Don't get fooled
into autoloading just because of a silly indirection.

Work around bug in pkg-config before 0.26.

* configure.ac (EMACS_CHECK_MODULES): Check for failed exit status
of pkg-config, on older pkg-config versions that don't do it
properly.

Fixes: debbugs:17438

* lisp/mouse.el: Use the normal toplevel loop while dragging.
(mouse-set-point): Handle multi-clicks.
(mouse-set-region): Handle multi-clicks for drags.
(mouse-drag-region): Update call accordingly.
(mouse-drag-track): Remove `do-mouse-drag-region-post-process' hack.
Use the normal event loop instead of a local while/read-event loop.
(global-map): Remove redundant bindings for double/triple-mouse-1.
* lisp/xt-mouse.el (xterm-mouse-translate-1): Only process one event at a time.
Generate synthetic down events when the protocol only sends up events.
(xterm-mouse-last): Remove.
(xterm-mouse--read-event-sequence-1000): Use xterm-mouse-last-down
terminal parameter instead.
(xterm-mouse--set-click-count): New function.
(xterm-mouse-event): Detect/generate double/triple clicks.
* lisp/reveal.el (reveal-close-old-overlays): Don't close while dragging.

* lisp/info.el (Info-quoted): New face.
(Info-mode-font-lock-keywords): New var.
(Info-mode): Use it.

* lisp/emacs-lisp/lisp-mode.el (preceding-sexp): Exclude leading "," which
are a hindrance for C-x C-e.

Revert last two changes.

Fixes: debbugs:17438

Require pkg-config 0.26 or later in autogen.sh only.

* autogen.sh (pkg_config_min): Make this at least 0.26.
* configure.ac (PKG_PROG_PKG_CONFIG): Revert back to 0.9.0.

Fixes: debbugs:17438

* src/fileio.c (Ffile_executable_p): Doc tweak.

Require pkg-config 0.26 or later.

Earlier versions are buggy, as pkg-config --libs can output
nothing, which causes xrandr link failures.
* configure.ac (PKG_PROG_PKG_CONFIG): Bump from 0.9.0 to 0.26.

Fixes: debbugs:17438

* lisp/vc/vc-hg.el (vc-hg-unregister): New function (tiny change)

Fixes: debbugs:17454

Move lisp/emacs-lisp/find-gc.el to admin/

Ref: http://lists.gnu.org/archive/html/emacs-devel/2014-05/msg00118.html

* net/rcirc.el (rcirc-sentinel): Fix last change.

Fix ChangeLog typo

admin.el tweaks

* admin/admin.el (set-version-in-file): Don't set identical version.
(set-version): Provide default version number.
(set-version, set-copyright): Give start/end messages.

Also mention bug-gnu-emacs in (ps-)print.el version strings

* printing.el (pr-version):
* ps-print.el (ps-print-version): Also mention bug-gnu-emacs.

* browse-url.el (browse-url-mosaic): Create /tmp/Mosaic.PID as a private file.

* lisp/emacs-lisp/nadvice.el: Support adding a given function multiple times.
(advice--member-p): If name is given, only compare the name.
(advice--remove-function): Don't stop at the first match.
(advice--normalize-place): New function.
(add-function, remove-function): Use it.
(advice--add-function): Pass the name, if any, to
advice--remove-function.

* xsettings.c (init_gsettings): Use g_settings_schema_source_lookup
instead of deprecated g_settings_list_schemas if possible.

Fixes: debbugs:17434

* lisp/electric.el (electric-indent-post-self-insert-function): Don't use
`pos' after modifying the buffer.

Fixes: debbugs:17449

Optionally auto-reconnect depending on `rcirc-reconnect-delay'.

* net/rcirc.el (rcirc-reconnect-delay): New user option.
(rcirc-sentinel): Auto-reconnect to the server if `rcirc-reconnect-delay'
is non-0 (but not more often than its value in case the host is off-line).

* lisp/subr.el (function-put): Add function.

* url-handlers.el (url-file-handler-load-in-progress): New defvar.
(url-file-handler): Use it, in order to avoid recursive load.

gnus-art.el: Misc improvements for displaying MIME parts

* gnus-art.el (gnus-mm-display-part): Don't put article out of sight
while prompting a user for a file name, etc.
(gnus-mime-display-single): Display part with a common appearance no
matter whether MIME button is omitted or not; don't add duplicate entry
to gnus-article-mime-handle-alist.
(gnus-mime-buttonize-attachments-in-header): Use copied buttons.

lisp/progmodes/grep.el (lgrep): Fix a typo in last commit.

* calendar/todo-mode.el (todo-insert-item-from-calendar):
Correct argument list to conform to todo-insert-item--basic.

Use file-accessible-directory-p in some more places

* lisp/files.el (file-expand-wildcards):
* lisp/man.el (Man-support-local-filenames):
* lisp/printing.el (pr-i-directory, pr-interface-directory):
* lisp/progmodes/grep.el (lgrep, rgrep):
* lisp/textmodes/ispell.el (ispell-call-process)
(ispell-call-process-region, ispell-start-process)
(ispell-init-process):
* lisp/mh-e/mh-e.el (mh-variants):
Use file-accessible-directory-p.

* files.el (cd-absolute): Test if directory is accessible
rather than executable.

This can't be any worse, and may be better in some situations.
It may or may not fix bug#17330.

* gnus/mml2015.el (mml2015-display-key-image): Fix :version tag in previous.

* compile.el (recompile): Handle C-u M-x recompile from non-compilation buffer

Fixes: debbugs:17444

lisp/gnus/mml2015.el (mml2015-display-key-image): New variable

Backport dired-check-switches from trunk.
* lisp/dired.el (dired-check-switches, dired-switches-recursive-p): New functions.
(dired-switches-escape-p, dired-move-to-end-of-filename):
Use `dired-check-switches'.
(dired-insert-old-subdirs, dired-build-subdir-alist)
(dired-sort-R-check): Use `dired-switches-recursive-p'.

Fixes: debbugs:17218

Add CVE numbers for recent issues to ChangeLogs

* browse-url.el (browse-url-mosaic): Be careful when writing /tmp/Mosaic.PID.
This is CVE-2014-3423.

Fixes: debbugs:17428

nt/INSTALL: Minor rearrangement of text for clarity.

nt/INSTALL: More details about creating the build environment.

* test/automated/vc-bzr.el: Tweak previous to use BZR_HOME rather than HOME

Fix comment typo in previous

Merge from emacs-24; up to 2014-05-08T06:58:46Z!rgm@gnu.org

test/automated/vc-bzr.el: revise previous change

* test/automated/vc-bzr.el (vc-bzr-test-bug9726, vc-bzr-test-bug9781)
(vc-bzr-test-faulty-bzr-autoloads):
Give bzr a temporary home-directory, in case the real one is missing.
Simply disabling logging wasn't enough.

Merge from emacs-24; up to 2014-05-08T03:34:20Z!rgm@gnu.org

test/automated/vc-bzr.el: disable bzr's logging

This is for systems like hydra, where HOME can be read-only/absent.
See e.g. <http://hydra.nixos.org/build/10870893>.

* test/automated/vc-bzr.el (vc-bzr-test-bug9726, vc-bzr-test-bug9781)
(vc-bzr-test-faulty-bzr-autoloads): Disable bzr logging.

* lisp/xt-mouse.el: Drop spurious/oddly shaped events.
(xterm-mouse--read-event-sequence-1000): Return nil if something looks fishy.
(xterm-mouse-event): Propagate it.
(xterm-mouse-translate-1): Handle it.

Fixes: debbugs:17378

* internals.texi (C Dialect): New section.

(C Integer Types): Mention bool_bf.

* minibuf.c (read_minibuf): Avoid C99ism in previous patch.

Fixes: debbugs:17430

* image.c: Include <png.h> before <setjmp.h>.

Fixes: debbugs:17429

Standardize case of "Front-Cover Texts" in texi file permissions notices.

Ref: http://lists.gnu.org/archive/html/bug-texinfo/2014-05/msg00015.html

* autogen.sh: Check for failing aclocal.

Fix initialization of minibuffer history variable, bug #17430.

* minibuf.c (read_minibuf): Initialize histval to Qnil if unbound.
Move the initialization up to prevent any "value void" message.

todo-mode.el: Don't drop full parameter list.

* calendar/todo-mode.el (todo-insert-item--apply-args): When all
four slots of the parameter list are filled, make sure to pass it
to the argument list of todo-insert-item--basic.

* image.c: Do not use libpng if HAVE_NS, as NS does its own thing.

[HAVE_NS]: Do not include png.h.
(x_query_frame_background_color): New function.
(png_load_body, imagemagick_load_image, svg_load_image): Use it.
(png_load_body): Coalesce duplicate code.

* configure.ac: Comment.

* lisp/emacs-lisp/package.el (package-compute-transaction): Topological sort.
Add optional `seen' argument to detect and break infinite loops.

Fixes: debbugs:16994

* src/keyboard.c (Frecursive_edit): Ensure inc&dec of command_loop_level
are matched.

Fixes: debbugs:17413

* etc/MACHINES: Misc small edits.
Update Irix info.  Remove details of obsoleted platforms.

Fix tooltips pulling Emacs window to front on windows-nt, bug #17408.

  * w32fns.c (Fx_show_tip): Add SWP_NOOWNERZORDER flag to
  SetWindowPos invocations.

Minor stylistic changes in find-gc.el.

 lisp/emacs-lisp/find-gc.el (find-gc-unsafe, find-unsafe-funcs)
 (trace-unsafe, trace-use-tree): Make parentheses style be
 according to Emacs style.

Fix Bug#17415.

* net/tramp-sh.el (tramp-uudecode): Replace the hard-coded temporary
file name by a format specifier.
(tramp-remote-coding-commands): Enhance docstring.
(tramp-find-inline-encoding): Replace "%t" by a temporary file name.

* tramp.texi (Frequently Asked Questions): Mention HISTFILE
setting in ~/.ssh/environment.

Fix Bug#17295.
* net/tramp-sh.el (tramp-remote-process-environment): Remove
HISTFILE and HISTSIZE; it's too late to set them here.  Add
:version entry.
(tramp-open-shell): Do not let-bind `tramp-end-of-output'.  Add
"HISTSIZE=/dev/null" to the shell's env arguments.  Do not send
extra "PSx=..." commands.
(tramp-maybe-open-connection): Setenv HISTFILE to /dev/null.

browse-url.el comment

find-gc.el misc fixes

The whole file looks obsolete and/or broken.

* lisp/emacs-lisp/find-gc.el (find-gc-source-directory): Give it a value.
(find-gc-source-files): Update some names.
(trace-call-tree): Simplify and update.  Avoid predictable temp-file names.

* gnus-fun.el (gnus-grab-cam-face): Do not use predictable temp-file name.

* lisp/minibuffer.el (completion--try-word-completion): Revert fix for
Bug#15980.

Fixes: debbugs:17375

* lisp/xt-mouse.el (xterm-mouse--read-event-sequence-1000):
Always store button numbers in the same way in xterm-mouse-last;
Don't burp is xterm-mouse-last is not set as expected.
Never return negative indices.

Fixes: debbugs:17378

* lisp/progmodes/ruby-mode.el (ruby-syntax-propertize-function):
Backtrack one char if the global/char-literal var matcher hits
inside a string.  The next char could be the beginning of an
expression expansion.

* test/automated/ruby-mode-tests.el
(ruby-interpolation-after-dollar-sign): New test.

* lisp/help-fns.el (describe-function-1): Test for an autoload before a macro
since `macrop' works on autoloads.

* test/automated/help-fns.el: New file.

Fixes: debbugs:17410

* lisp/electric.el (electric-indent-functions-without-reindent): Add yaml.

* nsselect.m (Fx_selection_exists_p): Just return Qnil if window system
not initialized.

Fixes: debbugs:17398

* autogen.sh: Check any pre-existing ACLOCAL_PATH.

Use rx for `gnu' compile.el pattern

* progmodes/compile.el (compilation-error-regexp-alist-alist):
Port `gnu' pattern to rx.

Use rx for `gnu' compile pattern

* progmodes/compile.el (compilation-error-regexp-alist-alist):
Port `gnu' pattern to rx.

Update nt/INSTALL for the latest changes in configury.

 nt/INSTALL: Update to the effect that pkg-config is now required
 for building from the repository.

Remove unneeded prompt "Buffer ... still has clients"

* server.el (server-start): Remove the only call to:
(server-kill-buffer-query-function): Remove.

Fixes: debbugs:16548

* lisp/minibuffer.el (completion-table-with-quoting) <completion--unquote>:
Make sure the new point we return is within the new string.

Fixes: debbugs:17239

Auto-commit of loaddefs files.

* etc/NEWS: Correct spelling.

* lisp/calendar/diary-lib.el (calendar-chinese-month-name-array):
Defvar to pacify compiler.

Consult libpng-config more consistently.

This is mainly for simplicity, but it should also avoid
some future problems like the ones we recently had with NetBSD.
* configure.ac (LIBPNG): Configure after LIBZ.  Use libpng-config
for cflags, too.  Append -lz if we're not already doing that with
LIBZ.  Do not bother appending -lm, since we always append that.
Coalesce some duplicate code.
* src/Makefile.in (PNG_CFLAGS): New var.
(ALL_CFLAGS): Use it.
* src/image.c [HAVE_PNG]: Don't worry about <libpng/png.h>, as
CFLAGS now handles this.

Fixes: debbugs:17339

* autogen.sh: Use ‘"’ to quote a message that often contains ‘'’.

Merge from emacs-24; up to 2014-05-04T21:18:30Z!eggert@cs.ucla.edu

Revert recent libpng changes.

They fix only bugs that aren't being reported, so it may be better
to do them on the trunk.
* configure.ac (PNG_CFLAGS): Remove.  All uses removed.
(LIBPNG): Don't be consistent about -lpng16 versus -lpng.
Ignore libpng-config's exit status.  Always append -lz -lm.
* src/Makefile.in (PNG_CFLAGS): Remove; all uses removed.
* src/image.c [HAVE_LIBPNG_PNG_H]: Include <libpng/png.h>, not <png.h>.

Fixes: debbugs:17339

* configure.ac (LIBPNG): Add -lz -lm on platforms where they're needed

but libpng-config --libs omits them.  Problem reported by Glenn
Morris.

Support Chinese diary entries in calendar and diary

* doc/emacs/cal-xtra.texi (Non-Gregorian Diary): Document new features for
Chinese calendar and diary.

* etc/NEWS: Mention support for Chinese dates in calendar and diary.

* lisp/calendar/cal-china.el (calendar-chinese-month-name-array): New var.
(calendar-chinese-from-absolute-for-diary)
(calendar-chinese-to-absolute-for-diary)
(calendar-chinese-mark-date-pattern, diary-chinese-mark-entries)
(diary-chinese-list-entries): New functions to list and mark
Chinese diary entries in the calendar window.
(diary-chinese-anniversary)
(diary-chinese-insert-anniversary-entry)
(diary-chinese-insert-entry, diary-chinese-insert-monthly-entry)
(diary-chinese-insert-yearly-entry): New commands to insert
Chinese diary entries.

* lisp/calendar/cal-menu.el (cal-menu-diary-menu): Add entries for
inserting Chinese diary entries.

* lisp/calendar/calendar.el (diary-chinese-entry-symbol): New
customizable variable.
(calendar-mode-map): Add bindings for inserting Chinese diary
entries.

* lisp/calendar/diary-lib.el (diary-font-lock-keywords): Support
font-locking Chinese dates.

Fixes: debbugs:17393