LLVM is a collection of libraries and tools that make it easy to build compilers, optimizers, just-in-time code generators, and many other compiler-related programs.

Java Compiler-Compiler (JavaCC) is (according to sun) "the most popular parser generator" for use with Java [tm] applications.

This package contains the OpenCV (Open Computer Vision) computational photography runtime libraries.

This package contains the OpenCV (Open Computer Vision) shape descriptors and matchers runtime libraries.

This library is a powerful templating engine with inheritance, asynchronous control, and more (jinja2 inspired).

Ground-up implementation of a Fortran front end written in modern C++.