GNAT is a compiler for the Ada programming language. It produces optimized code on platforms supported by the GNU Compiler Collection (GCC).

2Geom is a C++ 2D geometry library geared towards robust processing of computational geometry data associated with vector graphics. The primary design consideration is ease of use and clarity. It is dual-licensed under LGPL 2.1 and MPL 1.1.

Recursive directory iterator supporting:

This is the GNU Objective-C compiler, which compiles Objective-C on platforms supported by the gcc compiler.

Telethon is an asyncio Python 3 MTProto library to interact with Telegram's API as a user or through a bot account (bot API alternative).

QEPCAD is an implementation of quantifier elimination by partial cylindrical algebraic decomposition due originally to Hoon Hong, and subsequently added on to by many others. It is an interactive command-line program written in C/C++, and based on the SACLIB library. Presented here is QEPCAD B version 1.x, the "B" designating a substantial departure from the original QEPCAD and distinguishing it from any development of the original that may proceed in a different direction. QEPCAD and the SACLIB library are the result of a program of research by George Collins and his PhD students that has spanned several decades ... and continues still!