>>>>> Katsumi Yamaoka <yamaoka@jpl.org> writes:
>>>>> On Tue, 30 Dec 2014 19:45:57 +0000, Ivan Shmakov wrote:

[…]

 >> * lisp/files.el (dir-locals-collect-variables): Use
 >> default-directory in place of the file name while working on
 >> non-file buffers (as hack-dir-local-variables already does.)

 > After this change, I got to get unknown errors[1] when building
 > Ma Gnus.  To reproduce the same result, try the following in the
 > Emacs source tree:

 > % cd lisp/gnus 
 > % emacs -batch -Q --eval FORM 

 > where FORM is:

 > '(with-temp-buffer (let ((default-directory (expand-file-name ".")))
 > (insert-file-contents "./auth-source.el") (hack-local-variables)))'

 > And you will see

 > (args-out-of-range "/DIR/emacs/lisp/gnus" 21 nil)

 > or something similar (where 21 is 1+ the number of letters of the dir
 > name).

 > The FORM above is what `custom-make-dependencies' does.

	ACK, thanks.  Indeed, this change assumes that the result for
	(expand-file-name default-directory) ends with a ‘/’, yet that’s
	only the case when default-directory itself ends with a ‘/’,
	which I believe it should; consider, e. g.:

(defun cd-absolute (dir)
  "Change current directory to given absolute file name DIR."
  ;; Put the name into directory syntax now,
  ;; because otherwise expand-file-name may give some bad results.
  (setq dir (file-name-as-directory dir))
  …)

	The issue at hand could be solved by using the first of the
	patches MIMEd.  However, I believe that such a change may easily
	mask bugs in the other parts of the code, so the proper solution
	would probably be a fix to custom-make-dependencies, as per the
	second patch MIMEd.

	Could you please check if both indeed resolve the issue at hand?

	TIA.

[…]

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