CodeLite is an open-source, cross platform IDE for the C/C++ programming languages (build and tested on Windows XP SP3, Windows Vista, Windows 7, Ubuntu 10.04, and Mac OSX 10.5.8). CodeLite is distributed under the terms of the GPLv2 license with an exception:
License exception:
The only exception is that plugins developed for CodeLite (other than the ones that comes with the official installer provided by the CodeLite team), are allowed to remain closed sourced and can be distributed under any license
KeePass is a free/open-source password manager or safe which helps you to manage your passwords in a secure way. You can put all your passwords in one database, which is locked with one master key or a key-disk.
the Open Watcom is a joint effort between SciTech Software, Sybase®, and a select team of developers, which will bring the Sybase Watcom C/C++ and Fortran compiler products to the Open Source community.
comprises the GNU C compiler targeted at the ARM processor of ARM-based HP calculators (like the HP49g+), HP specific libraries, a tool (ELF2HP) that converts the gcc produced binary to the appropriate format for the HP calculator, and an emulator
an open source, high performance library for simulating rigid body dynamics. It is fully featured, stable, mature and platform independent with an easy to use C/C++ API. It has advanced joint types and integrated collision detection with friction.
a game programming library for C/C++ developers distributed freely, supporting the following platforms: DOS, Unix (Linux, FreeBSD, Irix, Solaris, Darwin), Windows, QNX, BeOS and MacOS X. It provides many functions for graphics, sounds, player input, etc..