Weechat - a CLI IRC client

WeeChat is a fast, light and extensible chat client. It runs on many platforms
like Linux, Unix, BSD, GNU Hurd, Mac OS X and Windows (Bash/Ubuntu and Cygwin).

WeeChat is:
modular: a lightweight core with optional plugins
multi-protocols architecture (mainly IRC)
extensible with C, Python, Perl, Ruby, Lua, Tcl, Scheme, Javascript and PHP
fully documented and translated into several languages
a free program released under the GPLv3 license
an active project with a large community for scripts.

This slackuild builds from git.