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Test for an up-to-date Custom library when byte-compiling, and issue

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an informative message when one cannot be found, as is the case with a
vanilla Emacs 19.34 (and NTEmacs 19.34).
This commit is contained in:
Barry Warsaw 1997-12-02 21:51:57 +00:00
parent 08052c7bb6
commit 673d05f0ee
1 changed files with 20 additions and 1 deletions
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21
Misc/python-mode.el
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@ -30,6 +30,8 @@
;; you may need to acquire the Custom library. Please see
;; <http://www.python.org/ftp/emacs/> for details.
;; You will want to byte-compile this file.
;; python-mode.el is currently distributed with XEmacs 19 and XEmacs
;; 20. Since this file is not GPL'd it is not distributed with Emacs,
;; but it is compatible with 19.34 and the current 20 series Emacsen.
@ -80,7 +82,24 @@
(require 'custom)
(eval-when-compile
(require 'cl))
(require 'cl)
(require 'custom)
;; Stock Emacs 19.34 has a broken/old Custom library that does more
;; harm than good
(or (fboundp 'defcustom)
(error "STOP! STOP! STOP! STOP!
The Custom library was not found or is out of date. A more current
version is required. Please download and install the latest version
of the Custom library from:
<http://www.dina.kvl.dk/~abraham/custom/>
See the Python Mode home page for details:
<http://www.python.org/ftp/emacs/>
")))
;; user definable variables