* test/lisp/gnus/mml-sec-tests.el
(mml-secure-en-decrypt-sign-1-1-single): Mark the test as unstable
(bug#42720). It sometimes fails on some systems (Fedora?) when
run with "-j5", so there may be a race condition in the code somewhere.
* lisp/whitespace.el (whitespace-missing-newline-at-eof): Change
the colours to not be as angry.
(whitespace-color-on): Don't mark the end of the buffer if point
is there.
* lisp/buff-menu.el (Buffer-menu--dynamic-name-width): New
function (bug#30692).
(Buffer-menu-name-width): Default to using it.
(list-buffers--refresh): Call it.
* lisp/emacs-lisp/seq.el (seq-max): Add autoload cookie.
* lisp/net/browse-url.el: Turn on lexical-binding.
(browse-url--mailto, browse-url--man, browse-url--browser): Use
imperative form in docstrings.
(browse-url-delete-temp-file): Turn comment into a proper docstring.
* test/lisp/net/browse-url-tests.el: New file with tests for
browse-url.el.
* lisp/net/browse-url.el (browse-url-mosaic-program)
(browse-url-mosaic-arguments, browse-url-mosaic-pidfile)
(browse-url-CCI-port, browse-url-CCI-host)
(browse-url-default-browser, browse-url-mosaic, browse-url-cci):
Remove support for the Mosaic browser, which saw its last release in
1997, or 23 years ago.
* etc/NEWS: Announce its removal.
* lisp/help-fns.el (describe-widget-functions): New variable, used by
describe-widget.
(describe-widget): New command, to display information about a widget.
* lisp/button.el (button-describe): New command, for describing a button.
(button--describe): Helper function for button-describe.
* lisp/wid-edit.el (widget-describe): New command, for describing a
widget.
(widget--resolve-parent-action): Helper function, to allow
widget-describe to display more useful information (bug#139).
* lisp/arc-mode.el (archive-copy-file): New command, keystroke and
menu bar entry (bug#26192).
(archive-extract): Refactored out code from here...
(archive--extract-file): ... to here for use in archive-copy-file.
* lisp/thingatpt.el (thing-at-point-bounds-of-url-at-point): Don't
include trailing ' in the URL, because it's more likely to be a
punctuation character (bug#29410).
* lisp/emacs-lisp/byte-opt.el (byte-optimize-associative-math)
(byte-optimize-min-max): Transform 3-arg min/max call into two 2-arg
calls, which is faster.
* lisp/emacs-lisp/bytecomp.el (byte-compile-associative): Rename to...
(byte-compile-variadic-numeric): ...this function and simplify,
fixing incorrect comments. The 3-arg strength reduction is now
always done in the optimisers and is no longer needed here.
(byte-compile-min-max): New function.
(byte-compile-minus): Simplify, remove incorrect comment, and use
byte-compile-variadic-numeric.
(byte-compile-quo): Simplify and fix comment.
* lisp/emacs-lisp/bytecomp.el (byte-compile-associative):
Translate numerical identity expressions, such as (+ x) and (* x),
into (* x 1) since the previous translation (+ x 0) gets it wrong
for x = -0.0.
* test/lisp/emacs-lisp/bytecomp-tests.el
(byte-opt-testsuite-arith-data): Add test cases.
* lisp/whitespace.el (whitespace-missing-newline-at-eof): New face
(bug#34952).
(whitespace-report-region): Add a test for
end-of-buffer-without-newline.
(whitespace-color-on): Ditto.
* doc/emacs/display.texi (Useless Whitespace): Document it.
This incorporates:
2020-08-06 libgmp: add <gmp/gmp.h> support
2020-08-06 Consider that clang defines __OPTIMIZE__ like GCC does
2020-08-06 Use __builtin_expect with clang everywhere
2020-08-05 Use __builtin_clz{,l,ll} with clang, also on Windows
2020-08-05 Use __builtin_ctz{,l,ll} and __builtin_ffs{,l,ll} with clang
2020-07-31 _GL_CMP: Improve documentation
2020-07-30 alloca, largefile: sync with Autoconf master
* lib/c++defs.h, lib/cdefs.h, lib/count-leading-zeros.h:
* lib/count-trailing-zeros.h, m4/alloca.m4, m4/gnulib-common.m4:
* m4/largefile.m4, m4/libgmp.m4:
Copy from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
