CDDB client bundle GNUstep

http://gsburn.sourceforge.net/

Diff readability enhancher for color terminals

https://github.com/ymattw/cdiff

Compare directories and select files to copy

http://home.hccnet.nl/paul.schuurmans/linux/index.html#xdircmp

CDDA extraction tool (also known as ripper)

https://www.xiph.org/paranoia/

Record CD-R[W]s in disk-at-once mode

http://cdrdao.sourceforge.net/

The CELT ultra-low delay audio codec

https://www.celt-codec.org/

Vector graphics tool for GNUstep

http://www.cenon.info/dLinux_gb.html

Library for reading and writing files in FITS data format

https://heasarc.gsfc.nasa.gov/docs/software/fitsio/

Unit test framework for C

https://libcheck.github.io/check/

Photobooth-inspired app for taking pictures and videos from webcam

https://www.gnome.org/projects/cheese/

Feelter thet cunferts Ingleesh text tu Muck Cheenese-a

http://mysite.verizon.net/ebrowne72/chef/index.html

A utility to quickly check multiple folders for new email

Library for dealing with Microsoft ITSS/CHM format files

http://www.jedrea.com/chmlib/

AcoustID audio fingerprinting library

https://acoustid.org/chromaprint

Tool to chroot softwares easily

https://sourceforge.net/projects/chrootsafe/

Tool to modify DT_RPATH in existing ELF binaries

Synchronise computer clock to CHU radio station

https://www.rossi.com/chu/

Tool to compress ISO images to CSO format

https://github.com/laffer1/ciso-maker

Open-source (GPL) anti-virus engine (Regular Feature Release)

https://www.clamav.net/

Command line virus scanner written entirely in C

http://www.clamav.net/

Update script for third-party ClamAV databases

https://github.com/extremeshok/clamav-unofficial-sigs

GNU project to create a free Java class library

http://www.classpath.org/

Emoji annotation files in CLDR

https://github.com/fujiwarat/cldr-emoji-annotation

GTK+ 2.x engine based on Bluecurve

http://clearlooks.sourceforge.net/

Clearlooks Metacity theme

http://clearlooks.sourceforge.net/

Clearlooks themes with the engine coming from gtk-engines2

http://clearlooks.sourceforge.net/

Command line video extraction tool for YouTube and others

http://clive.sourceforge.net

Class Library for Numbers

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

CLucene is a C++ port of Lucene

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

OpenGL based interactive canvas library

http://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

CMake modules needed to build WebOS components

https://freewebos.github.io/

Unit testing framework for C with support for mock objects

https://cmocka.org/

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

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

Convenience package to install the FreeBSD compat9x libraries

Compiler runtime library with Blocks support

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

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/