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From: Mark H Weaver <mhw@netris.org>
To: Julien Lepiller <julien@lepiller.eu>
Cc: 31216@debbugs.gnu.org
Subject: bug#31216: commit 217b8c2e0 produces 'Can't locate Date/Parse.pm in @INC Error' perl error
Date: Sat, 21 Apr 2018 01:04:33 -0400	[thread overview]
Message-ID: <87vaclxi8u.fsf@netris.org> (raw)
In-Reply-To: <87zi1xxmh8.fsf@netris.org> (Mark H. Weaver's message of "Fri, 20 Apr 2018 23:33:07 -0400")

Unfortunately, the compatibility symlinks are not sufficient.  The
problem is that other perl packages such a po4a are installing their
modules into $out/lib/perl5/site_perl/5.26.1, which conflicts with the
compatibility symlink that we're installing in perl.

When perl and po4a are put together into a profile, po4a has a directory
<PO4A>/lib/perl5/site_perl/5.26.1 and perl has its compatibility symlink
in the same relative location.  The (guix build union) code follows
perl's symlink to its target directory <PERL>/lib/perl5/site_perl/5.26.2
and merges that with <PO4A>/lib/perl5/site_perl/5.26.1 to form
<PROFILE>/lib/perl5/site_perl/5.26.1, but that not in any of the paths.

I'm now trying a different approach: hack the replacement perl to think
it is version 5.26.1, although it is actually 5.26.2.  I'll report back
soon.

       Mark

  reply	other threads:[~2018-04-21  5:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-19  3:14 bug#31216: commit 217b8c2e0 produces 'Can't locate Date/Parse.pm in @INC Error' perl error George myglc2 Clemmer
2018-04-19 14:39 ` Leo Famulari
2018-04-20 12:41   ` Julien Lepiller
2018-04-20 23:46     ` Leo Famulari
2018-04-20 23:51       ` Leo Famulari
2018-04-21  3:15     ` Mark H Weaver
2018-04-21  3:33     ` Mark H Weaver
2018-04-21  5:04       ` Mark H Weaver [this message]
2018-04-21  5:24       ` Mark H Weaver
2018-04-22 17:42         ` Leo Famulari
2018-04-25  1:36         ` Mark H Weaver
2018-04-25 13:34           ` myglc2
2018-04-26 10:54             ` Marius Bakke
2018-04-26 12:51               ` George myglc2 Clemmer
2018-04-19 16:06 ` Marius Bakke

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