GNU bug report logs - #37361
GHCI fails to run for ghc@8.6.5

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Jacob MacDonald <jaccarmac <at> gmail.com>
Subject: bug#37361: closed (Re: bug#37361: GHCI fails to run for ghc <at> 8.6.5)
Date: Tue, 10 Sep 2019 04:59:02 +0000

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Your bug report

#37361: GHCI fails to run for ghc <at> 8.6.5

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 37361 <at> debbugs.gnu.org.

-- 
37361: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=37361
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Timothy Sample <samplet <at> ngyro.com>
To: Jacob MacDonald <jaccarmac <at> gmail.com>
Cc: 37361-done <at> debbugs.gnu.org
Subject: Re: bug#37361: GHCI fails to run for ghc <at> 8.6.5
Date: Tue, 10 Sep 2019 00:58:47 -0400

Hi Jacob,

Jacob MacDonald <jaccarmac <at> gmail.com> writes:

>> I believe this should be fixed by 83aa656217.
>
> That does indeed fix both bugs. In my specific case I'm still running
> into an issue with dependency shadowing, but it seems like a separate
> issue and I'll open a new one if it's not on my side.
>
> Thanks.

Thanks for checking so quickly.  :)


-- Tim

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From: Jacob MacDonald <jaccarmac <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: GHCI fails to run for ghc <at> 8.6.5
Date: Mon, 9 Sep 2019 15:37:24 -0500

To reproduce, just guix environment --ad-hoc ghc -- ghci. ghc <at> 8.4.3
works. Seems like this may be related to some Prelude changes upstream
(https://gitlab.haskell.org/ghc/ghc/issues/16563), but I'm not
familiar enough with GHC internals to really tell what's going on.
Interestingly, when I try to run plain old GHC on some source files
with 8.6.5 I get another seemingly unrelated error:

    Bad interface file:
/gnu/store/8v1sn5ns7r5n02aip0b0ypyyzb2y1i1a-ghc-8.4.3/lib/ghc-8.4.3/base-4.11.1.0/Prelude.hi
            mismatched interface file versions (wanted "8065", got "8043")
      |
    1 | import Test.Hspec        (Spec, it, shouldBe)
      | ^

Again, I'm afraid I'm not entirely familiar with GHC internals and the
function of interfaces files. Nevertheless, it seems not all is well
in Guix-Haskell-land.

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