ActivePerl is the industry-standard Perl distribution, available for Windows, Linux, Mac OS X, Solaris, AIX, and HP-UX. Complete and ready-to-install, the ActivePerl distribution includes core Perl, popular modules, the Perl Package Manager (PPM), and complete documentation. The Windows version provides additional features that have made ActivePerl the worldwide standard for Perl on Windows.
ActivePython is the industry-standard Python distribution, available for Windows, Linux, Mac OS X, Solaris, AIX, and HP-UX. It is 100% compatible with the reference distribution of Python. Code tested with ActivePython will run on any Python installation that has the appropriate extensions installed.
Argtable is an ANSI C library for parsing GNU style command line arguments, as in "foo -abc -o myfile --help --count=7". It enables a program's command line syntax to be defined in the source code as an array of argtable structs. The command line is then parsed according to that specification, and the resulting values are returned in those same structs where they are accessible to the main program. The default parsing, validation, and error reporting routines may be replaced by user-defined callbacks if desired, and new argtable data types may be created to parse user-defined argument types. The parsing itself is done using GNU getopt and so is 100% GNU compatible.
BlueJ is an interactive Java development environment. It provides a unique user interface that presents a graphical display of the application classes and their relationships, and it lets users interactively create objects of any class. Once objects have been created, users can interact with them directly. This interaction mechanism allows for much greater testing and experimentation than in conventional environments. BlueJ is suited for teaching and learning OO and Java.
BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.
Bugzilla is the leading open-source/free software bug tracking system, with high-profile installations at mozilla.org, GNOME, Red Hat, and NASA, among others. It features a comprehensive set of fields, attachment management, inter-bug dependencies, email notification of changes, a powerful query interface, reporting, and Web, XML, email, and console interfaces. It can be managed entirely using a Web-based UI. The user UI is customizable using templates.
ClanLib is a cross-platform game SDK currently supporting Windows and Linux. It provides easy-to-use interfaces for 2D graphics, input, sound, resources, networking, GUI, OpenGL, and more. The goal is to provide a game SDK that does all the dirty work that all modern games need to implement anyway, thus making the game developer concentrate on the gameplay instead of reinventing the wheel over and over again.
Common C++ is a highly portable C++ class library meant primarily for the development of portable threaded applications. Support is provided both for POSIX platforms and native builds under Win32. The goal is to provide a truly common C++ framework for writing portable threaded applications that do not require a huge amount of runtime overhead to support, and hence can make C++ and threads suitable even for the development of trivial servers and applications.
CUPS is a standards-based printing system for Mac OS X and other Unix-like operating systems. It provides the System V and Berkeley command line interfaces, and uses the Internet Printing Protocol ("IPP") as the basis for managing print jobs and queues. The Line Printer Daemon (LPD) Server Message Block (SMB), and AppSocket (a.k.a. JetDirect) protocols are also supported with reduced functionality. CUPS adds network printer browsing and PostScript Printer Description ("PPD") based printing options to support real world printing.