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Otherwise leaks could be missed.

Every program starts in __libc_start_main, so this would suppress
everything. This doesn't happen in practice because asan by default
is unable to unwind the stack. Setting
ASAN_OPTIONS=fast_unwind_on_malloc=0,malloc_context_size=15 can unwind
the stack, and if malloc_context_size is large enough it will indeed
suppress everything.

Without this, kwin correctly assumes that we are
using client-side decorations. This is a port
of 32ae97f1 from GTK 3.24.

Fixes: #3609

Lazier accessibility

See merge request !3102

Inspector controllers

See merge request !3101

We only realize the ATContext on the top level, which will create an
GtkAtSpiRoot object and the corresponding GtkAtSpiCache object. Whenever
an AT connects to the accessibility bus, and asks for the various
objects, all the ATContext will be realized on demand.

If we're responding to a request to get all the cached items, there's no
need to emit signals when adding an ATContext to the cache.

Don't create widgets in bind, instead just set
the new action on the action-editor, and let it
recreate the parts that need to be recreated.

Prepare the action editor for being able to change its
actions after creation.

We are not using the size group anymore, so drop it.

Use a column view here.

Use a column view, and only show the widgets own
controllers.

Ebassi/for master

Closes #3607

See merge request !3100

Use a column view, and only show the widgets own
controllers.

If we cannot allocate memory, we cannot create any windowing system
surface. There's no coming back from that.

Fixes: #3607

docs: Update getting started section

Closes #3601

See merge request !3099

The vector-based variant should shadow the variadic arguments function
in bindings.

Let's hope people read them.

We were still talking about draw signals here,
which don't exist anymore.

Fixes: #3601

Redo arrow icons in various widgets

Closes #3577

See merge request !3097

Use the same approach as GtkTreeViewColumn for sort
indicators. Luckily, the same css works for both.

Instead of hardcoding icon names in the widget, use
arrow.none, arrow.up, arrow.down, arrow.left, arrow.right
styles and set the icon to use with -gtk-icon-source. This
lets themes change the icons that are used here, without
forcing all uses of pan-up/down/start/end-symbolic to be
treated the same.

Document this in the menubutton CSS docs.

Instead of hardcoding icon names in the widget, use
sort-indicator.ascending and sort-indicator.descending styles
and set the icon to use with -gtk-icon-source. This lets themes
change the icon that is used here, without forcing all uses of
pan-up/down-symbolic to be treated the same.

Document this in the treeview CSS docs.

Fixes: #3577

dist: Fix css theme disting after HighContrast-dark changes

See merge request !3095

macOS: fix #2436 raise transient window on focus

Closes #2436

See merge request !3094

Split NEWS for pre-4.0 changes

See merge request !3096

Commit f60d245e renamed it from
HighContrast-inverse.css to HighContrast-dark.css.

Similar to commit 87e9f089 that did the
same for older releases, this commit splits out pre-4.0 changes to
separate NEWS.pre-4.0 file.

Ported from gtk-3-24 e278f389

Fixes #2436

Version bump

See merge request !3093

These will be needed for adding new API.

master is now open for 4.2 API additions.

Includes an update for the one test we have that
has the version number in its expected output.

Add activate signal to GtkCheckButton

Closes #3525 and #3550

See merge request !3012

build: Use Meson’s module for building .pc files

Closes #3517

See merge request !3005