Shared version of the support library, a library of internal subroutines that GCC uses to overcome shortcomings of particular machines, or special needs for some languages.

Free, secure, production-quality and standard-conformant FTP server. Features include chrooted home directories, virtual domains, built-in 'ls', anti-warez system, configurable ports for passive downloads, FXP protocol, bandwidth throttling, ratios, fortune files, Apache-like log files, fast standalone mode, atomic uploads, text / HTML / XML real-time status report, virtual users, virtual quotas, privilege separation, SSL/TLS and more.

SSH's (secure shell) most common authentication mode is called "interactive keyboard password authentication", so called both because it is typically done via keyboard, and because openssh takes active measures to make sure that the password is, indeed, typed interactively by the keyboard. Sometimes, however, it is necessary to fool ssh into accepting an interactive password non-interactively. This is where sshpass comes in.

The APCu is userland caching: APC (Alternative PHP Cache) stripped of opcode caching after the deployment of Zend OpCache in PHP 5.5 as the primary solution to opcode caching in future versions of PHP.

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.

Tesseract is an open source Optical Character Recognition (OCR) Engine. It can be used directly, or (for programmers) using an API to extract printed text from images. This package contains the data needed for processing images in English language.