The W3C Reference Library

http://www.w3.org/Library/

The X protocol C-language Binding (XCB) library

https://xcb.freedesktop.org/

Implementation of the XDG Base Directory specification

https://github.com/devnev/libxdg-basedir/

Extension library for the Xfce desktop environment

https://www.xfce.org/

XKB file library

https://www.freedesktop.org/Software/xorg

The xkbui library

http://www.freedesktop.org/Software/xorg

Utility library to make XKB stuff easier

http://gswitchit.sourceforge.net/

XML API for C++

http://libxmlplusplus.sourceforge.net/

XML parser library for GNOME

http://xmlsoft.org/

Shared memory 'SyncFence' synchronization primitive

http://www.freedesktop.org/Software/xlibs

The XSLT C library for GNOME

http://xmlsoft.org/XSLT/

YAML 1.1 parser and emitter written in C

https://pyyaml.org/wiki/LibYAML

C library for reading, creating, and modifying ZIP archives

https://libzip.org/

Secure, fast, compliant, and flexible Web Server

https://www.lighttpd.net/

Rich city simulation game for X

http://lincity.sourceforge.net/

Lynx-like text WWW browser

http://links.twibright.com/

Lynx-like text WWW browser

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

The Adobe SVG browser plugin (Linux version)

http://www.adobe.com/svg/

Cross-platform game programming library (Linux Fedora 10)

http://www.talula.demon.co.uk/allegro/

Advanced Linux Sound Architecture libraries (Linux Fedora 10)

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

OSS plugin for ALSA (Linux Fedora 10)

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

Audio system for the KDE integrated X11 desktop (Linux Fedora 10)

Spelling checker with better logic than ispell (Linux Fedora 10)

http://aspell.sourceforge.net/

Accessibility Toolkit, Linux/i386 binary (Linux Fedora 10)

http://gtk.org

BLT widget extension to Tcl/Tk scripting language development (Linux Fedora 10)

Vector graphics library Cairo (Linux Fedora 10)

http://www.cairographics.org/

Common UNIX Printing System libraries

https://cups.org/

Command line tool for transferring files with URL syntax (Linux Fedora 10)

http://curl.haxx.se/

RFC 2222 SASL (Simple Authentication and Security Layer) (Linux Fedora 10)

http://cyrusimap.web.cmu.edu/

GLib bindings for D-Bus (Linux Fedora 10)

http://www.freedesktop.org/wiki/Software/DBusBindings

Libraries for accessing D-BUS (Linux Fedora 10)

http://www.freedesktop.org/Software/dbus

Linux compilers and base libraries

http://gcc.gnu.org/

Mesa libGL runtime libraries and DRI drivers (Linux Fedora 10)

RPM of esound (Linux Fedora 10)

http://www.tux.org/~ricdude/EsounD.html

Linux/i386 binary port of Expat XML-parsing library (Linux Fedora 10)

http://sourceforge.net/projects/expat/

Adobe Flash Player NPAPI Plugin

http://www.adobe.com/

XML-based font configuration API for X Windows (Linux Fedora 10)

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

A free implementation of OpenAL's ALUT standard (Linux Fedora 10)

http://connect.creativelabs.com/openal/default.aspx

Image loading library for GTK+ (Linux Fedora 10)

OpenGL Extension Wrangler Library (Linux Fedora 10)

http://glew.sourceforge.net/

GNU Transport Layer Security library

http://www.gnutls.org/

GTK+ library, version 2.X (Linux Fedora 10)

http://www.gtk.org/

A high-color icon theme shell from the FreeDesktop project

http://www.freedesktop.org/Standards/icon-theme-spec

RPM of imlib (Linux Fedora 10)

RPM of the JPEG lib (Linux Fedora 10)

http://www.ijg.org/

Mesa libGLU runtime library (Linux Fedora 10)

http://www.freedesktop.org/Software/xorg

Implementation of the Audio File Library from SGI (Linux Fedora 10)

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

Fortran 77 shared library (Linux Fedora 10)

General purpose crypto library based on code used in GnuPG

http://www.gnupg.org/

RPM of libglade (Linux Fedora 10)