Function: compilation--set-up-margin
compilation--set-up-margin is a byte-compiled function defined in
compile.el.gz.
Signature
(compilation--set-up-margin W)
Documentation
Setup the margin for "=>" in window W if it isn't already set up.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/compile.el.gz
(defun compilation--set-up-margin (w)
"Setup the margin for \"=>\" in window W if it isn't already set up."
(when (eq (window-buffer w) (current-buffer))
(set-window-margins w (+ (or (car (window-margins w)) 0) 2))))