Bug#676858: tuareg-mode: emacs21 require 'derived

[Kevin Ryde <user42@zip.com.au>]

Package: tuareg-mode
Version: 1:2.0.6-1
Severity: wishlist
File: /usr/lib/emacsen-common/packages/install/tuareg-mode

I've still got emacs21 installed and tuareg-mode 2.0.6 fails to install
with

While compiling toplevel forms in file /usr/share/emacs21/site-lisp/tuareg-mode/ocamldebug-tuareg.el:
  !! Symbol's function definition is void ((derived-mode-p))


It looks like this is not from ocamldebug-tuareg.el but instead from
tuareg.el, which ocamldebug-tuareg.el loads.  tuareg.el calls
derived-mode-p in its defcustom tuareg-support-metaocaml default value.

It works for me to add to tuareg.el

    (require 'derived)  ;; for `derived-mode-p' in emacs21

ocamldebug-tuareg.el has the same (require 'derived) for its own use of
derived-mode things.  In newer emacs it's autoloaded or pre-loaded or
some such, but compatibility with past emacs can be had with that
explicit require.



-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (990, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-486
Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/dash

Versions of packages tuareg-mode depends on:
ii  emacs21 [emacsen]        21.4a+1-5.7
ii  emacs22-gtk [emacsen]    22.3+1-1.2
ii  emacs23 [emacsen]        23.4+1-3
ii  xemacs21-mule [emacsen]  21.4.22-3.2

Versions of packages tuareg-mode recommends:
ii  ocaml-interp  <none>
ii  ocaml-mode    4.00.0~~dev15+12379-1

tuareg-mode suggests no packages.

-- no debconf information