Problem reported by David Caldwell (bug#79879).
* configure.ac: When configuring for GNUstep and the
Objective C compiler does not support even C99 features,
use the first flag of -std=gnu23, -std=gnu17, -std=gnu11, -std=gnu99
that works, instead of insisting on -std=c99 which (a) is too
strict and (b) can override another -std= option in an
undesirable way.
* lisp/treesit.el (treesit-auto-install-grammar): Add the value 'ask-dir'.
(treesit-ensure-installed): When 'treesit-auto-install-grammar' is
'ask' or 'ask-dir', ask for the directory to install the grammar library
using the first writable directory of 'treesit-extra-load-path' as default.
Also add the provided directory to 'treesit-extra-load-path' afterwards.
* src/treesit.c (treesit-extra-load-path): In the docstring
mention the fact that the first directory is special (bug#79862).
Problem reported by John Paul Adrian Glaubitz (bug#79876).
* src/data.c (Fash): Don’t assume stdc_leading_zeros, which
returns an unsigned integer of unspecified width, returns
a value narrower than EMACS_INT. Also, don’t munge the code to
worry about stdc_leading_zeros (0); unlike GCC’s __builtin_clz,
stdc_leading_zeros works fine on 0. And use a temporary to
avoid a cast.
Make completing-read-multiple do eager display of *Completions*
when the table requests it.
As a side-effect of the implementation, we now check again if
eager-display is enabled if we have to retry doing eager-display
due to being interrupted by user input. This is mildly nicer
since it gives the completion table a little more control: for
example, maybe the table only wants to do eager-display if the
minibuffer is empty; this change makes that work better.
* lisp/minibuffer.el (completions--start-eager-display)
(completing-read-default): Move the code for checking whether to
do eager-display into completions--start-eager-display.
* lisp/emacs-lisp/crm.el (completing-read-multiple): Call
completions--start-eager-display (bug#79858).
This patch adds tests for the following scenarios:
- Every element is handled (basic functionality)
- Result specified in SPEC is returned
- Bindings named "tail" are not shadowed by 'dolist'
* test/lisp/subr-tests.el (subr-tests--dolist--every-element-is-handled)
(subr-tests--dolist--returns-spec-result)
(subr-tests--dolist--does-not-shadow-tail-binding): New tests.
(Bug#79778)
Problem reported by Helmut Eller (bug#79886).
* src/lisp.h (USE_LSB_TAG): Adjust to alignas changes.
(alignas): For GCC and Clang, prefer __attribute__ ((__aligned__ (A)))
to alignas (A) even if the compiler claims to support the latter.
This works around a bug in GCC 14 i386 C23 alignas.
No need to worry about whether __alignas_is_defined is defined.
We dropped support for MSVC long ago, and nowadays only support
MinGW for the MS-Windows builds of Emacs.
* src/w32term.h:
* src/w32fns.c:
* src/w32.c:
* nt/inc/sys/socket.h:
* nt/inc/stdalign.h:
* nt/inc/ms-w32.h: Remove MSVC-specific code and preprocessor
conditions.
* nt/inc/ms-w32.h: Don't redirect Posix functions to MS _FOO
equivalents, as MinGW headers do that nowadays better, not
necessarily via functions, and do not disable that when __STDC__
is defined.
The core of the problem is that `completion-pcm--prepare-delim-re`
is designed to match a "delimiter" in the pattern but was misused
to match a sequence of delimiter chars in the completions.
* lisp/minibuffer.el (completion-pcm--delim-re): Rename from
`completion-pcm--prepare-delim-re` and change its calling convention.
(completion-pcm--segments->regex): Use it.
(completion-pcm-word-delimiters): Adjust accordingly.
* test/lisp/minibuffer-tests.el (completion-pcm--test-zerowidth-delim):
New test.
Port to planned glibc 2.43 (scheduled for February 2026),
which will support qualifier-generic standard functions; see:
https://sourceware.org/git/?p=glibc.git;a=commit;h=cd748a63ab1a7ae846175c532a3daab341c62690
For example, strchr (P, C) will return pointer to const if P is
pointer to const. The idea is to catch dumb programming errors when a
program mistakenly uses strchr to convert a pointer to const
to an unrestricted pointer. This feature is required by C23,
and will be enabled by default in GCC 15.
* src/callint.c (Fcall_interactively):
Respect constness of pointer when calling memchr.
* src/gtkutil.c (xg_get_font):
2nd arg is char *, not const char *.
* src/xfaces.c (parse_float_color_comp): Return bool, not double.
New arg DST. All callers changed. This makes it easier for
callers to use char const *.
(parse_color_spec): Respect constness of pointer when calling strchr.
* lisp/progmodes/ruby-mode.el (ruby-smie-rules): Check for ':' and
'=>' as previous tokens, and handle symbols ending with ':' to
properly indent keyword argument arrays and hashes when
ruby-bracketed-args-indent is nil.
* lisp/progmodes/ruby-ts-mode.el (ruby-ts--parent-call-or-bol):
Handle arrays/hashes that are children of 'pair' nodes (keyword
arguments) to ensure consistent indentation.
* test/lisp/progmodes/ruby-mode-resources/ruby-bracketed-args-indent.rb:
Add test cases for keyword argument arrays and hashes with both
symbol-colon and hash-rocket syntax.
When ruby-bracketed-args-indent is nil, arrays and hashes used as
keyword argument values now indent by ruby-indent-level from the
line start, matching the documented behavior and fixing inconsistent
indentation (bug#74517).
(https://lists.gnu.org/archive/html/emacs-devel/2025-11/msg00939.html)
* lisp/cus-start.el: Make 'abbrev-mode' customizable.
* doc/emacs/abbrevs.texi (Abbrev Concepts):
* etc/NEWS:
* src/buffer.c (syms_of_buffer): <abbrev-mode>: Document
enabling Abbrev mode by default in all buffers by customizing
'abbrev-mode' to a non-nil value.
* lisp/vc/vc-dir.el (vc-dir-mark-file): Prompt before unmarking
all subitems. Use y-or-n-p and user-error instead of
yes-or-no-p and error.
(vc-dir-unmark-file): Use y-or-n-p instead of yes-or-no-p.
(vc-dir-allow-mass-mark-changes): Update docs.
* lisp/vc/diff-mode.el (diff-revert-and-kill-hunk): When the
region is active, operate on all hunks it overlaps.
* doc/emacs/files.texi (Diff Mode):
* etc/NEWS: Document the change.
* lisp/vc/diff-mode.el (diff-apply-buffer): New 'no-save'
meaning for fourth optional argument. Reserve other non-nil
values for this argument. Use ngettext for one message.
(diff-apply-hunk): If the region is active, apply all hunks that
the region overlaps, like diff-apply-buffer.
* doc/emacs/files.texi (Diff Mode):
* etc/NEWS: Document the change to diff-apply-hunk.
* lisp/progmodes/cc-defs.el (c-version): Add a comment
encouraging maintainers to keep cc-mode.el's Version: header
the same.
* lisp/progmodes/cc-mode.el (top level): Update the Version:
header to 5.35.2.
* lisp/mouse.el (mouse-position-for-drag-line): New function;
return position of active touch screen tool if a sequence is
being translated into mouse movement events, and the last mouse
position otherwise.
(mouse-drag-line): Invoke `mouse-position-for-drag-line' rather
than reading the mouse position manually.
* lisp/touch-screen.el (touch-screen-current-tool): New 10th
field holding the frame-relative last attested position of this
tool.
(touch-screen-relative-xy): Clarify doc string.
(touch-screen-handle-point-update): Update the said field with
POSN's position relative to its frame.
(touch-screen-handle-touch): Initialize the 10th field of new
tool lists with such a position.
(touch-screen-last-drag-position): New function.
* lisp/emacs-lisp/package.el (package-dir-info, package-unpack):
Force Dired to return list of packages explicitly marked for
installation. Without the optional argument, Dired will return
the file under the current point if no files are selected.
* lisp/emacs-lisp/cond-star.el (cond*-convert-condition): Bind
unused values to fresh symbols, to avoid the compiler warning
that a symbol starting with an underscore is accessed later on.
This mirrors the behaviour of `if-let*' and family.
* lisp/replace.el (replace--push-stack): Add new args
'next-replacement' and 'match-again' and push them to the stack.
(perform-replace): Restore the previous already calculated values
of 'next-replacement' and 'match-again' from the stack for the
'backup' ('^') key (bug#79811).
* test/lisp/replace-tests.el (query-replace-tests): Add tests.
See https://github.com/editorconfig/editorconfig-emacs/issues/380
* lisp/editorconfig-core-handle.el (editorconfig-core-handle--parse-file):
Fix regexp to not inadvertently match LF. Remove an O(N²) complexity.
Use `line-number-at-pos`.
* lisp/editorconfig.el (editorconfig--get-coding-system): Don't let
errors propagate.
* java/org/gnu/emacs/EmacsNative.java (setEmacsParams): New arg
UIMODE.
(sendConfigurationChanged): New args DETAIL and UI_MODE.
* java/org/gnu/emacs/EmacsNoninteractive.java (main1): Provide
an undefined UI mode.
* java/org/gnu/emacs/EmacsService.java (EmacsService): New field
uiMode.
(onCreate): Initialize this field at start-up and provide the
same to setEmacsParams.
(onConfigurationChanged): If the UI mode has been altered,
generate a configuration changed event to match.
* src/android.c (android_ui_mode): New variable.
(setEmacsParams): New argument UI_MODE. Initialize the same
from this variable.
* src/androidgui.h (enum android_configuration_changed): New
enum.
(struct android_configuration_changed_event): New field
`DETAIL'. Convert fields providing specifics into a union of
display density information and a UI mode integer.
* src/androidterm.c (handle_one_android_event): Handle both
manners of configuration change events.
(android_term_init): Initialize Vtoolkit_theme from UI mode
provided at start-up.
* src/frame.c (syms_of_frame): Always define Vtoolkit_theme.
Define Qtoolkit_theme_set_functions.
* src/gtkutil.c (xg_update_dark_mode_for_all_displays):
* src/w32term.c (w32_read_socket): Generate special toolkit
theme events, rather than executing hooks directly within the
read_socket callback.
* src/keyboard.c (kbd_buffer_get_event)
<TOOLKIT_THEME_CHANGED_EVENT>: Run Qtoolkit_theme_set_functions
and set Vtoolkit_theme from event->ie.arg.
* src/termhooks.h (enum event_kind): New event
TOOLKIT_THEME_CHANGED_EVENT.
* lisp/vc/diff.el (diff-file-local-copy): Use proper coding-system
when writing a local copy of a non-file visiting buffer.
* lisp/misearch.el (coding-system--for-buffer-diff): New variable.
(multi-file-replace-as-diff): Bind it to 'utf-8-emacs'.
(multi-file-diff-no-select): Use proper coding-system when reading
output of Diff. (Bug#79761)
