GNU bug report logs - #31210
Perl graft breakage

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From: Mark H Weaver <mhw <at> netris.org>
To: Leo Famulari <leo <at> famulari.name>
Cc: 31210 <at> debbugs.gnu.org
Subject: bug#31210: Perl graft breakage
Date: Thu, 19 Apr 2018 07:57:32 -0400

Hi Leo,

One more thing:

Leo Famulari <leo <at> famulari.name> writes:
> +           (add-after 'install 'workaround-grafting-version-bug
> +             (lambda* (#:key outputs #:allow-other-keys)
> +               (let* ((out (assoc-ref outputs "out"))
> +                      (new (string-append out "/lib/perl5/5.26.2"))
> +                      (old (string-append out "/lib/perl5/5.26.1")))
> +                 (symlink new old)
> +                 #t)))))))))

It would be better for 'new' to be simply "5.26.2" instead of an
absolute file name.  If I'm not mistaken, on ext4, files (including
symlinks) smaller than 60 bytes are stored entirely within the inode,
saving both a disk block and a seek operation when accessing it.

      Mark

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