XML API for C++

http://libxmlplusplus.sourceforge.net/

XML parser library for GNOME

http://xmlsoft.org/

Shared memory 'SyncFence' synchronization primitive

https://gitlab.freedesktop.org/xorg/lib/libxshmfence

XML stylesheet transformation library

https://gitlab.gnome.org/GNOME/libxslt/

YAML 1.1 parser and emitter written in C

https://pyyaml.org/wiki/LibYAML

Library for decrypting and parsing YubiKey One-Time Passwords

https://developers.yubico.com/yubico-c/

GLib/GObject wrapper for the Skydrive and Hotmail API

https://github.com/GNOME/libzapojit

C library for reading, creating, and modifying ZIP archives

https://libzip.org/

C client interface to Zookeeper server

https://zookeeper.apache.org/

GNU ZRTP library

https://github.com/wernerd/ZRTPCPP

Routines to access raw VBI capture devices

https://zapping.sourceforge.net/doc/libzvbi/

Simple RSS/RDF feed reader

https://lzone.de/liferea/

Gnome ligthsoff

https://wiki.gnome.org/Lightsoff

Secure, fast, compliant, and flexible Web Server

https://www.lighttpd.net/

Rich city simulation game for X

https://lincity.sourceforge.net/

Digital version of Frederic Goudy's Deepdene

https://www.theleagueofmoveabletype.com/linden-hill

Lynx-like text WWW browser

http://links.twibright.com/

Lynx-like text WWW browser

http://www.jikos.cz/~mikulas/links/

Advanced Linux Sound Architecture libraries (Linux CentOS 7.9.2009)

http://www.alsa-project.org/

Advanced Linux Sound Architecture headers (Linux CentOS 7.9.2009)

https://www.alsa-project.org/

PulseAudio plugin for ALSA (Linux CentOS 7.9.2009)

http://www.alsa-project.org/

Spelling checker with better logic than ispell (Linux CentOS 7.9.2009)

Assistive technology ATK bridge (Linux CentOS 7.9.2009)

https://gitlab.gnome.org/GNOME/at-spi2-atk

Assistive technology service provider interface (Linux CentOS 7.9.2009)

https://gitlab.gnome.org/GNOME/at-spi2-core

Accessibility Toolkit (Linux CentOS 7.9.2009)

https://developer.gnome.org/atk/

Implementation of the Audio File Library (Linux CentOS 7.9.2009)

http://www.68k.org/~michael/audiofile/

Libraries for Avahi (Linux CentOS 7.9.2009)

http://www.avahi.org/

Common UNIX Printing System libraries

https://www.cups.org/

Tool for transferring files with URL syntax (Linux CentOS 7.9.2009)

https://curl.se/

RFC 2222 SASL (Simple Authentication and Security Layer) (Linux CentOS 7.9.2009)

https://www.cyrusimap.org/sasl/

GLib bindings for D-Bus (Linux CentOS 7.9.2009)

Libraries for accessing D-BUS (Linux CentOS 7.9.2009)

Linux compilers and base libraries (CentOS 7.9.2009)

https://gcc.gnu.org/

Utilities for MS-DOS FAT filesystems (CentOS 7.9.2009)

https://github.com/dosfstools/dosfstools

ELF file handling library (CentOS 7.9.2009)

https://sourceware.org/elfutils/

ELF file handling libraries (CentOS 7.9.2009)

https://sourceware.org/elfutils/

XML 1.0 parser written in C (Linux CentOS 7.9.2009)

https://github.com/libexpat/libexpat

Free lossless audio codec (Linux CentOS 7.9.2009)

https://www.xiph.org/flac/

XML-based font configuration API for X Windows (Linux CentOS 7.9.2009)

https://www.freedesktop.org/wiki/Software/fontconfig/

Font rendering engine (Linux CentOS 7.9.2009)

https://www.freetype.org/

Unicode Bidirectional Algorithm (Linux CentOS 7.9.2009)

http://fribidi.org/

Graphic library for GTK+ (Linux CentOS 7.9.2009)

https://developer.gnome.org/gdk-pixbuf/

GNU Transport Layer Security library (Linux CentOS 7.9.2009)

Rendering capabilities for complex non-Roman writing systems (Linux CentOS 7.9.2009)

http://graphite.sil.org

GSM audio codec (CentOS 7.9.2009)

http://kbs.cs.tu-berlin.de/~jutta/toast.html

OpenType text shaping engine (Linux CentOS 7.9.2009)

International Components for Unicode (Linux CentOS 7.9.2009)

JPEG-2000 reference implementation (Linux CentOS 7.9.2009)

Lossless compression for bi-level images (Linux CentOS 7.9.2009)

https://www.cl.cam.ac.uk/~mgk25/jbigkit/

SIMD-accelerated JPEG codec (Linux CentOS 7.9.2009)