GNU bug report logs - #41451
Haskell packages retain references to bootstrap variants

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Message #14 received at 41451 <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <rekado <at> elephly.net>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 41451 <at> debbugs.gnu.org
Subject: Re: bug#41451: Haskell packages retain references to bootstrap
 variants
Date: Tue, 26 May 2020 08:49:43 +0200

Ludovic Courtès <ludo <at> gnu.org> writes:

> Ricardo Wurmus <rekado <at> elephly.net> skribis:
>
>> Ricardo Wurmus <rekado <at> elephly.net> writes:
>>
>>> Some Haskell packages have a “-bootstrap” variant to cut dependency
>>> cycles.  Unfortunately, these bootstrap variants remain in the reference
>>> graph alongside their non-bootstrap counterparts.
>>
>> On a related note, Haskell packages retain needless references to *all*
>> other Haskell packages at build time.  That’s because we *copy* their
>> .conf files at build time to create a package cache, and these .conf
>> files thus propagate even to unrelated packages.
>
> Weren’t these files eventually superseded by the
> ‘ghc-package-cache-file’ profile hook?  Or are these two different
> things?

That hook also operates on the .conf.d directory containing all .conf
files that have been copied from Haskell inputs.

-- 
Ricardo

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