WeeChat is a light & fast multilingual curses-based multiplatform IRC client.

WeeChat supports:
    DCC files and chats, multi-server connections, background connections,
    IPv6, SSL, proxy, auto-reconnection, DCC2, nicklist, window splitting,
    FIFO pipe for remote control, aspell, perl, python, ruby, nick auto-
    completion, lag indication, auto-logging, client upgrades without
    dropping connections.

WeeChat will build with support for:
    aspell, perl scripting, python scripting, ruby scripting, lua scripting,
    guile scripting, and gnutls depending on whether or not they are installed 
    on the system on which WeeChat is built.