Class Library for Numbers

https://www.ginac.de/CLN/

CLucene is a C++ port of Lucene

https://sourceforge.net/projects/clucene/

Qt bindings for the CLucene full-text search library

http://qt-project.org

Qt bindings for the CLucene full-text search library

http://qt-project.org

OpenGL based interactive canvas library

http://clutter-project.org/

Clutter GStreamer integration

https://clutter-project.org/

Clutter GStreamer integration

https://clutter-project.org/

GTK+ Integration library for Clutter

http://clutter-project.org/

GTK+ Integration library for Clutter

https://blogs.gnome.org/clutter/

Meta-port to connect all CMake bits

https://www.cmake.org/

Set of cmake modules for fedora developers

https://pagure.io/cmake-fedora

GUI for cmake

https://www.cmake.org

Modules and Templates for CMake

http://www.cmake.org/

Framework for developing PHP web applications

https://codeigniter.com/

Clutter OpenGL abstraction library

http://clutter-project.org/

Optimization library with support for COIN-OR CLP, CBC, and CGL

https://projects.coin-or.org/CoinMP

Manage color profiles to accurately color input/output devices

https://www.freedesktop.org/software/colord

Manage color profiles to accurately color input/output devices

https://www.freedesktop.org/software/colord

MidnightBSD Common Services

http://www.midnightbsd.org/

Convenience package to install the compat4x libraries

A convenience package to install the compat5x libraries

Convenience package to install the FreeBSD 6.x compat libraries

Convenience package to install the FreeBSD compat7x libraries

Convenience package to install the FreeBSD compat8x libraries

Compiler runtime library with Blocks support

http://compiler-rt.llvm.org/

Compiz Composite/Window Manager

http://www.compiz.org/

Composite extension headers

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

Feature-rich compositing window manager for X11

https://github.com/chjj/compton

Provide network access to local serial ports and make remote ports appear local

https://BSDforge.com/projects/comms/comserv/

Console based hardware monitor for BSD

Framework for defining and tracking users

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

Free Software Foundation's core utilities

http://www.gnu.org/software/coreutils/

The O\x27Reilly package of utility classes for servlet developers

http://www.servlets.com/cos/index.html

Document database server, accessible via a RESTful JSON API

http://couchdb.org/

Meta-port for the courier authentication library

http://www.Courier-MTA.org/authlib/

Courier authentication library base

http://www.Courier-MTA.org/authlib/

Userdb support for the Courier authentication library

http://www.Courier-MTA.org/authlib/

IMAP (and POP3) server that provides access to Maildir mailboxes

http://www.courier-mta.org/imap/

RRDtool frontend for Courier statistics

https://www.arschkrebs.de/postfix/couriergraph/

User authentication and password changing daemon utility

http://www.arda.homeunix.net/store/

User account information retrieval utility

http://www.arda.homeunix.net/store/

Configurable talking characters in ASCII art

http://www.nog.net/~tony/warez/cowsay.shtml

C++ port of the JUnit framework for unit testing

http://cppunit.sourceforge.net

CPU identification utility

http://www.ka9q.net/code/cpuid/

Password-checking library

https://sourceforge.net/projects/cracklib/

Interactive C program browser

http://cscope.sourceforge.net/

Feature-filled tagfile generator for vi and emacs clones

http://ctags.sourceforge.net/

BitTorrent Client written in C for FreeBSD and Linux

http://www.rahul.net/dholmes/ctorrent/

Automated unit testing framework for C

http://cunit.sourceforge.net/

Common UNIX Printing System

https://github.com/OpenPrinting/cups