align comments and macro pf multiple lines

align.el

;; align-regexp with space instead tab
(defadvice align-regexp (around align-regexp-with-spaces activate)
  (let ((indent-tabs-mode nil))
    ad-do-it))
(defalias 'ar #'align-regexp)
(defadvice align (around align-with-spaces activate)
  (let ((indent-tabs-mode nil))
    ad-do-it))
(defun align-c-comments (beginning end)
"Align instances of // or /* */ within marked region."
  (interactive "*r")
  (let (indent-tabs-mode align-to-tab-stop)
    (align-regexp beginning end "\\(\\s-*\\)[//|/*]")))
(defun align-c-macros (beginning end)
  "Align macros within marked region"
  (interactive "*r")
  (progn
        (align beginning end)
        (untabify beginning end)))
(require 'cc-mode)                                              ;; c-mode-map
(dolist (m (list c-mode-map c++-mode-map))
  (bind-keys :map m
           :prefix-map align-prefix-map
           :prefix "C-c a"
           ("c" . align-c-comments)
           ("m" . align-c-macros)))

("a" . align)
("r" . align-regexp)