Re: automake's .el support vs. recent loss of byte-compile-dest-file

[Jim Meyering <jim@meyering.net>]

On Wed, Nov 29, 2017 at 10:23 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Jim Meyering <jim@meyering.net>
>> Date: Tue, 28 Nov 2017 19:35:04 -0800
>> Cc: emacs-devel <emacs-devel@gnu.org>, Paul Eggert <eggert@cs.ucla.edu>
>>
>> $ (export TMPDIR=/tmp; mkdir sub && : > sub/x.el && emacs --batch -l
>> bytecomp --eval '(defun byte-compile-dest-file (f) "sub/x.elc")'
>> --eval "(unless (byte-compile-file \"sub/x.el\") (kill-emacs 1))" )
>> Creating file with prefix: No such file or directory, /tmp/sub/x.elc
>
> Does the patch below fix this?
>
> diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
> index e4d8a20..fa6b789 100644
> --- a/lisp/emacs-lisp/bytecomp.el
> +++ b/lisp/emacs-lisp/bytecomp.el
> @@ -1924,7 +1924,8 @@ byte-compile-file
>                        ;; process is trying to load target-file (eg in a
>                        ;; parallel bootstrap), it does not risk getting a
>                        ;; half-finished file.  (Bug#4196)
> -                      (tempfile (make-temp-file target-file))
> +                      (tempfile
> +                        (make-temp-file (file-name-nondirectory target-file)))
>                        (default-modes (default-file-modes))
>                        (temp-modes (logand default-modes #o600))
>                        (desired-modes (logand default-modes #o666))

Hi Eli,
Yes, with emacs built from latest master plus your patch, running
automake's lisp-related tests now (with my in-preparation patch)
succeeds. I.e., these passed:

  make check TESTS="$(echo t/lisp*.sh)"