bug#18616: nlinum error on multiple emacsclient instances

[Kaushal]

I finally got a successful workaround for this problem.

I was facing this problem probably since emacs 24.3 and also on 24.4 and the master head builds from emacs git for version 25.0.50.0.

I was getting "*ERROR*: Invalid face: linum" when trying to start emacs with "emacsclient -a '' -c" with my init.el having "(require 'nlinum)".

Workaround:

(if (daemonp)

    (add-hook 'window-setup-hook

              (lambda ()

                (message ">> Daemon mode")

                 ;; It is mandatory to load linum AFTER the frames are set up

                 ;; Else, I get "*ERROR*: Invalid face: linum"

                 (require 'nlinum)))

  (progn

    (message ">> Non daemon mode")

    (require 'nlinum)))

Actual snippet in my init.el: https://github.com/kaushalmodi/.emacs.d/blob/a0955aeead27bf6ccdb0219edfbfade10a823728/init.el#L220-228