hippie-exp customization breaks ESK in emacs-snapshot

[akaihola]

I'm using an up-to-date Emacs from Damien Cassou's emacs-snapshot PPA. After a recent upgrade to version 2:20121004-1ppa1precise1, emacs24-starter-kit fails to start. With the --debug-init option, I get the following traceback (file paths un-prefixed for brevity):

Debugger entered--Lisp error: (void-variable hippie-expand-try-functions-list)
  (delete (quote try-expand-line) hippie-expand-try-functions-list)
  eval-buffer(#<buffer  *load*-217193> nil "starter-kit-misc.el" nil t)  ; Reading at buffer position 1999
  load-with-code-conversion("starter-kit-misc.el" "starter-kit-misc.el" nil nil)
  load("starter-kit-misc.el" nil nil t)
  load-file("starter-kit-misc.el")
  org-babel-load-file("starter-kit-misc.org")
  (let ((file (expand-file-name (if (string-match "starter-kit-.+.org" file) file (format "starter-kit-%s.org" file)) starter-kit-dir))) (org-babel-load-file (if header-or-tag (let* ((base (file-name-nondirectory file)) (dir (file-name-directory file)) (partial-file (expand-file-name (concat "." ... ".part." header-or-tag ".org") dir))) (if (file-exists-p partial-file) nil (let ((temp-file partial-file) (temp-buffer ...)) (unwind-protect (prog1 ... ...) (and ... ...)))) partial-file) file)))
  starter-kit-load("starter-kit-misc.org")
  eval-buffer(#<buffer  *load*-922140> nil "starter-kit.el" nil t)  ; Reading at buffer position 3319
  load-with-code-conversion("starter-kit.el" "starter-kit.el" nil nil)
  load("starter-kit.el" nil nil t)
  load-file("starter-kit.el")
  org-babel-load-file("starter-kit.org")
  eval-buffer(#<buffer  *load*> nil "init.el" nil t)  ; Reading at buffer position 348
  load-with-code-conversion("init.el" "init.el" t t)
  load("init" t t)
  #[0 "�\205\262

If I insert (require 'hippie-exp) at the top of init.el, it works.

I should probably just use a Emacs 24 release, but consider this as a heads-up for possible future breakage.

[nathanleclaire]

I can confirm that this is happening for me on an install of Emacs 24 from ppa:cassou on Linux Mint 13 with xmonad. Exact same stuff: My init.el file makes no mention of hippie-expand-try-functions-list, yet emacs spits out an error almost exactly like this on startup, complaining about the symbol's definition being void.

Kind of odd, since I don't remember this happening before, but I haven't used Emacs in a while.

The (require 'hippie-exp) workaround works for me as well.

Thanks.

[eschulte]

This should now be fixed, as we test to see if hippie-expand-try-functions-list is bound before manipulating it.