(setq erc-post-extensions
  '(
    erc-tex
    erc-yank
    erc-sasl
    ))

(defun erc/init-erc-sasl ()
  (use-package erc-sasl
    ;; Following http://www.emacswiki.org/emacs/ErcSASL
    ;; Maybe an advice would be better?
    :config
    ;; Add any server like this
    ;; (add-to-list 'erc-sasl-server-regexp-list "host\\.server\\.com")
    (add-to-list 'erc-sasl-server-regexp-list "irc\\.freenode\\.net")
    (defun erc-login ()
      "Perform user authentication at the IRC server."
      (erc-log (format "login: nick: %s, user: %s %s %s :%s"
                       (erc-current-nick)
                       (user-login-name)
                       (or erc-system-name (system-name))
                       erc-session-server
                       erc-session-user-full-name))
      (if erc-session-password
          (erc-server-send (format "PASS %s" erc-session-password))
        (message "Logging in without password"))
      (when (and (featurep 'erc-sasl) (erc-sasl-use-sasl-p))
        (erc-server-send "CAP REQ :sasl"))
      (erc-server-send (format "NICK %s" (erc-current-nick)))
      (erc-server-send
       (format "USER %s %s %s :%s"
               ;; hacked - S.B.
               (if erc-anonymous-login erc-email-userid (user-login-name))
               "0" "*"
               erc-session-user-full-name))
      (erc-update-mode-line))))

(defun erc/init-erc-tex ()
  (require 'erc-tex))

(defun erc/init-erc-yank ()
  (use-package erc-yank
    :if (configuration-layer/package-usedp 'gist)
    :init
    (evil-define-key 'normal erc-mode-map
      "p" 'erc-yank)))