* doc/lispref/frames.texi (Window System Selections): Rename "x-*"
functions into the corresponding "gui-*" functions. Make the
description slightly less X-centric.
* configure.ac: Check for "/dev/urandom".
* src/sysdep.c (init_random) [HAVE_DEV_URANDOM]: Read the stream
for the seed from "/dev/urandom".
[WINDOWSNT]: Obtain the stream for the seed from w32 APIs.
* src/fns.c (Frandom): Update the doc string to indicate that
system entropy is used when available.
* src/w32.c: Include wincrypt.h.
(w32_init_crypt_random, w32_init_random): New functions, use the
CryptGenRandom API.
(globals_of_w32): Initialize w32_crypto_hprov handle to zero.
* src/w32.h (w32_init_random): Add prototype.
* doc/lispref/numbers.texi (Random Numbers): Document more details
about 't' as the argument to 'random'.
* etc/NEWS: Mention that '(random t)' now uses a cryptographically
strong seed if possible.
(Bug#22202)
* doc/lispref/text.texi (Special Properties): Document the new
properties 'cursor-intangible' and 'cursor-sensor-functions'.
Document the obsolete status of 'intangible', 'pointer-left',
and 'point-entered' properties, and of 'inhibit-point-motion-hooks'.
* doc/lispref/display.texi (Overlay Properties): Document that
'intangible' overlay property is obsolete.
* lisp/emacs-lisp/cursor-sensor.el (cursor-sensor-mode): Doc fix.
* src/w32.c (sys_write): Don't write to a pipe more stuff than its
buffer can hold. Don't return -1 if something has been written to
the pipe. Zero out 'errno' before calling '_write', to avoid
returning a stale value. (Bug#22344)
* src/w32proc.c (syms_of_ntproc) <w32-pipe-buffer-size>: New variable.
* src/w32.c (pipe2): Use it to request a user-defined size for the
pipe being created.
* etc/NEWS: Mention 'w32-pipe-buffer-size'.
* doc/emacs/msdos.texi (Windows Processes): Document
'w32-pipe-buffer-size'.
* doc/misc/eshell.texi (Input/Output): Document the new
'#<bufname>' syntax.
(Input/Output): Document 'eshell-destroy-buffer-when-process-dies'.
Disable "Key Index" generation, as there are no @kindex entries in
this manual.
* doc/emacs/maintaining.texi (Maintaining): Add a list of
described features.
(Xref): New section, made out of thoroughly rewritten "Tags"
section.
(Find Identifiers, Looking Up Identifiers, Xref Commands)
(Identifier Search, List Identifiers): New subsections,
incorporating the old tags commands and the new xref commands.
(Tags Tables, Tag Syntax, Create Tags Table, Etags Regexps):
Section and subsections demoted to a lower level.
* doc/emacs/search.texi (Search):
* doc/emacs/windows.texi (Pop Up Window):
* doc/emacs/frames.texi (Creating Frames):
* doc/emacs/programs.texi (Imenu, Symbol Completion):
* doc/emacs/building.texi (Grep Searching):
* doc/emacs/dired.texi (Operating on Files):
* doc/emacs/glossary.texi (Glossary): All references to tags changed.
* CONTRIBUTE : Encourage use of ":tags '(:expensive-test)".
Explain make target `check-expensive'.
* etc/NEWS: Mention new make target `check-expensive'.
* test/automated/Makefile.in (check-doit): New target.
(check, check-expensive): Use it.
* doc/emacs/display.texi (Useless Whitespace): Document
'whitespace-toggle-options' and the new 'big-indent' style.
Document 'whitespace-big-indent-regexp'. Document the Global
Whitespace mode.
