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.
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
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.
a source code analysis tool. With it, you can edit your source code, display relationships between classes and functions and members, and display call trees.