Variable: rcirc-fill-column
rcirc-fill-column is a customizable variable defined in rcirc.el.gz.
Value
nil
Documentation
Column beyond which automatic line-wrapping should happen.
If nil, use value of fill-column.
If a function (e.g., frame-text-width or window-text-width),
call it to compute the number of columns.
Source Code
;; Defined in /usr/src/emacs/lisp/net/rcirc.el.gz
(defcustom rcirc-fill-column nil
"Column beyond which automatic line-wrapping should happen.
If nil, use value of `fill-column'.
If a function (e.g., `frame-text-width' or `window-text-width'),
call it to compute the number of columns."
:risky t ; can get funcalled
:type '(choice (const :tag "Value of `fill-column'" nil)
(integer :tag "Number of columns")
(function :tag "Function returning the number of columns")))