Beyond Linux® From Scratch (System V Edition) - Version r12.3-1348

Chapter 25. Graphical Environment Libraries

at-spi2-core-2.56.4

Introduction to At-Spi2 Core

The At-Spi2 Core package contains a comprehensive accessibility framework for the Assistive Technologies available on the GNOME platform. This includes a set of interfaces which are implemented by other toolkits and applications.

This package is known to build and work properly using an LFS 12.4 platform.

Package Information

At-Spi2 Core Dependencies

Required

dbus-1.16.2, GLib-2.84.4 (GObject Introspection required for GNOME), gsettings-desktop-schemas-48.0 (Runtime), and Xorg Libraries

Optional

Gi-DocGen-2025.4 and sphinx-8.2.3

Installation of At-Spi2 Core

Install At-Spi2 Core by running the following commands: 

mkdir build &&
cd    build &&

meson setup ..                  \
      --prefix=/usr             \
      --buildtype=release       \
      -D gtk2_atk_adaptor=false \
      -D systemd_user_dir=/tmp  &&
ninja

Now, as the root user: 

ninja install &&
rm /tmp/at-spi-dbus-bus.service

The test suite requires the glib schemas of the package to be installed already. The tests also need to run in a graphical environment. Now that the package is installed, test the results by issuing: dbus-run-session ninja test.

Command Explanations

--buildtype=release: Specify a buildtype suitable for stable releases of the package, as the default may produce unoptimized binaries.

-D systemd_user_dir=/tmp: This flag puts the systemd unit file in /tmp where it will be removed. SysV is unable to use this file.

-D docs=true: Use this switch if you want to build the documentation. Note that you must have both Gi-DocGen-2025.4 and sphinx-8.2.3 installed on your system.

-D gtk2_atk_adaptor=false: This switch disables building the GTK+-2 module for this package.

Contents

Installed Programs: None
Installed Library: libatk-1.0.so, libatk-bridge-2.0.so, and libatspi.so
Installed Directories: /usr/include/atk-1.0, /usr/include/at-spi-2.0, /usr/include/at-spi2-atk, /usr/lib/gnome-settings-daemon-3.0, /usr/share/defaults/at-spi2, and /usr/share/gtk-doc/html/libatspi (optional)

Short Descriptions

libatk-1.0.so

contains functions that are used by assistive technologies to interact with desktop applications

libatk-bridge-2.0.so

contains the Accessibility Toolkit GTK+ module

libatspi.so

contains the At-Spi2 API functions