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* Better explanation of commit message vs ChangeLog distinction.

* Fix the name of the ChangeLog make task.

* Make instructions WRT NEWS, etc, ChangeLog entries clearer.

Fixes: debbugs:20328

* configure.ac (emacs_cv_prog_cc_nopie): Port to pre-4.6 GCC.
Fixes: bug#20338

* doc/lispref/searching.texi (Char Classes):
* lisp/emacs-lisp/rx.el (rx): Document [:graph:] to be [:print:]
sans whitespace (not sans space).
* src/character.c (graphicp): Exclude all Unicode whitespace chars,
not just space.
* src/regex.c (ISGRAPH): Exclude U+00A0 (NO-BREAK SPACE).

* lisp/subr.el (substitute-key-definition-key, special-form-p)
(macrop): Drop deprecated second arg to indirect-function.
(looking-back): Make the second arg non-optional.

command is actually sent to the shell.

* configure.ac: Check for jpeglib 6b by trying to link it, instead
of relying on cpp magic that has problems in practice.  Check for
both jpeglib.h and jerror.h features.  Remove special case for
mingw32, which should no longer be needed (and if it were needed,
should now be addressable by hotwiring emacs_cv_jpeglib).
Fixes: bug#20332

* lisp/emacs-lisp/lisp-mode.el (lisp--el-font-lock-flush-elisp-buffers):
Move to elisp-mode.el.
(lisp-mode-variables): (Re)move elisp-specific settings.

* lisp/progmodes/elisp-mode.el (emacs-lisp-mode): Add settings removed
from lisp-mode-variables.
(elisp--font-lock-flush-elisp-buffers): New function, moved from
lisp-mode.el.

Avoid pathological slowdown at top-level in large file.

Suggested by Glenn Morris in:
http://lists.gnu.org/archive/html/emacs-devel/2015-04/msg00678.html
* Makefile.in (install-man): Don't treat ChangeLog.1 as a man page.
* doc/man/ChangeLog.1: Rename back from doc/man/ChangeLog.01.
* lisp/erc/ChangeLog.1: New file, containing the old contents of ...
* lisp/erc/ChangeLog.01, lisp/erc/ChangeLog.02, lisp/erc/ChangeLog.03:
* lisp/erc/ChangeLog.04, lisp/erc/ChangeLog.05, lisp/erc/ChangeLog.06:
* lisp/erc/ChangeLog.07, lisp/erc/ChangeLog.08, lisp/erc/ChangeLog.09:
Remove.

This more clearly distingiushes pre-April-7 ChangeLog entries (which
are for top-level files only) from post-April-7 entries (which are
about files at all levels.  Problem reported by Glenn Morris in:
http://lists.gnu.org/archive/html/emacs-devel/2015-04/msg00678.html
* ChangeLog.1: Move post-April-7 entries from here ...
* ChangeLog.2: ... to this new file.
* Makefile.in (CHANGELOG_HISTORY_INDEX_MAX): Bump to 2.

* lisp/cus-start.el (custom-delayed-init-variables): Initialize the
vars early.
* lisp/loadup.el ("cus-start"): Move to the end to reduce customize-rogue.

* lisp/emacs-lisp/cl-extra.el (cl-concatenate): Removes duplicated
  code by making cl-concatenate an alias to seq-concatenate.

Fixes: debbugs:20334

* src/xfaces.c (resolve_face_name): Don't use `intern' with Lisp_Strings.

* gnus-uu.el (gnus-uu-save-article): Make the
save-restriction/widen calls make more sense.

In POSIX [[:print:]] is equivalent to [ [:graph:]], so change
[:graph:] so that it matches everything that [:print:] does,
except for space.
* doc/lispref/searching.texi (Char Classes):
* etc/NEWS:
* lisp/emacs-lisp/rx.el (rx):
Document [:graph:] to be [:print:] sans ' '.
* src/character.c, src/character.h (graphicp): New function.
* src/regex.c (ISGRAPH) [emacs]: Use it.
(BIT_GRAPH): New macro.
(BIT_PRINT): Increase to 0x200, to make room for BIT_GRAPH.
(re_wctype_to_bit) [! WIDE_CHAR_SUPPORT]:
Return BIT_GRAPH for RECC_GRAPH.
(re_match_2_internal) [emacs]: Use ISGRAPH if BIT_GRAPH,
and ISPRINT if BIT_PRINT.

Don't use call-next-method in a cl-defmethod.

(eieio--class-p): Remove, provided by cl-defstruct.

* lisp/emacs-lisp/seq.el (seq-intersection, seq-difference): New
functions.

* test/automated/seq-tests.el: Add tests for seq-intersection and
seq-difference.

* doc/lispref/sequences.texi: Add documentation for seq-intersection
and seq-difference.

Fixes: debbugs:20328

Fixes: debbugs:20328

Fixes: bug#20323

* build-aux/git-hooks/commit-msg: Set LC_ALL=C, before running Awk
in unibyte environments.  (Suggested by Paul Eggert
<eggert@cs.ucla.edu>.)  Use a more accurate approximation to
[:print:], based on UTF-8 sequences of the unprintable characters.

* etc/PROBLEMS: Describe the problem with cursor shape on
MS-Windows due to Windows Magnifier.

Fixes: Bug#20271

* src/regex.c (ISPRINT): Call 'printablep' for multibyte characters.
(BIT_PRINT): New bit mask.
(re_wctype_to_bit): Return BIT_PRINT for RECC_PRINT.
* src/character.c (printablep): New function.
* src/character.h (printablep): Add prototype.

* lisp/emacs-lisp/rx.el (rx): Doc fix: document the new behavior
of 'print', 'alnum', and 'alphabetic'.

* doc/lispref/searching.texi (Char Classes): Document the new
behavior of [:print:].

* etc/NEWS: Mention the new behavior of [:print:].

* admin/unidata/unidata-gen.el (unidata-setup-list): Don't ignore
surrogates.  This avoids assigning them the default
general-category of 'Cn', i.e. unassigned codepoints.
(unidata-get-name): Give surrogates synthetic names.

* lwlib/xlwmenu.c (offset):
* src/xterm.c (cvt_string_to_pixel_args):
Use offsetof, not XtOffset.

* src/widget.c (XtOffset): Remove; no longer needed.
(offset): Implement via offsetof instead of via pre-C89 XtOffset hack.

* src/window.c (count_windows, get_leaf_windows):
Don't optimize count_windows incorrectly.

* src/print.c (print_object):
* src/window.c (sequence_number):
* src/window.h (struct window.sequence_number):
Don't assume window sequence number fits in int.
* src/window.c (window_select_count):
* src/window.h (struct window.use_time, window_select_count):
Don't assume window use time fits in int.
* src/window.c (Fsplit_window_internal):
Don't assume user-supplied integer, or sum, fits in int.
(Fset_window_configuration, count_windows, get_leaf_windows)
(save_window_save, Fcurrent_window_configuration):
Use ptrdiff_t for object counts.
(Fset_window_configuration): Omit unused local 'n'.
(count_windows): Simplify by writing in terms of get_leaf_windows.
(get_leaf_windows): Don't store through FLAT if it's null.
(extract_dimension): New static function.
(set_window_margins, set_window_fringes, set_window_scroll_bars):
Use it to avoid undefined behavior when converting user-supplied
integer to 'int'.

* doc/emacs/custom.texi (Init Examples): Tweak example, replace typo.

* doc/lispintro/emacs-lisp-intro.texi (condition-case): Typo fix.

* lisp/gnus/gnus-art.el (gnus-use-idna):
* lisp/gnus/gnus-sum.el (gnus-summary-idna-message):
* lisp/gnus/message.el (message-use-idna):
Catch the invalid-operation that idna.el will issue.

Fixes: debbugs:20290

* doc/emacs/files.texi (Comparing Files): Document the new default
value of `diff-switches'.

* doc/emacs/trouble.texi (Sending Patches): Document the preference
for unified diff format.  Escape the plus in the suggested `-F' regexp
value.

* lisp/vc/diff.el (diff-switches): Change the default to `-u'.

* lisp/gnus/gnus-group.el (gnus-group--setup-tool-bar-update):
cursor-sensor-functions should be a list of functions.