GNU bug report logs - #67896
[PATCH] gnu: ghc-9.2: Make Cabal respect GHC_PACKAGE_PATH

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Package: guix-patches;

Reported by: soeren <at> soeren-tempel.net

Date: Tue, 19 Dec 2023 10:08:02 UTC

Severity: normal

Tags: patch

Done: Lars-Dominik Braun <lars <at> 6xq.net>

Bug is archived. No further changes may be made.

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Message #14 received at 67896 <at> debbugs.gnu.org (full text, mbox):

From: Sören Tempel <soeren <at> soeren-tempel.net>
To: Lars-Dominik Braun <lars <at> 6xq.net>
Cc: 67896 <at> debbugs.gnu.org
Subject: Re: [PATCH] gnu: ghc-9.2: Make Cabal respect GHC_PACKAGE_PATH
Date: Sat, 06 Jan 2024 16:07:05 +0100
Hi,

Lars-Dominik Braun <lars <at> 6xq.net> wrote:
> sorry for the delay, I just tried your patch and it works well combining
> a local cabal project and libraries/GHC from Guix. I’d say this is a
> massive improvement, so I’d like to ship it with Guix. However this
> is a world rebuilding change, so I’ll push it to the haskell-team
> branch and probably wait for #67921 to be ready before it can hit master.

Yea, glad to hear that. Waiting for #67921 is fine by me. Should I also
prepare a patch for the GHC 9.4 package then? Currently this is only GHC
9.2.

> One minor issue: If you add a patch file, also add it to gnu/local.mk.

Oh, I wasn't aware. Thanks for pointing that out, will keep it in mind
for future patches!

> > However, given that Setup.hs also uses
> > Distribution.Simple and that there are several places in Guix itself
> > where we need to unset GHC_PACKAGE_PATH atm, I personally believe it
> > to be preferable to fix the vendored version.
> 
> Which locations are you referring to?

I just grep'ed for GHC_PACKAGE_PATH, e.g.:

* https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/virtualization.scm#n784
* https://git.savannah.gnu.org/cgit/guix.git/tree/guix/build/haskell-build-system.scm#n111
* https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/haskell.scm#n963

Greetings
Sören




This bug report was last modified 1 year and 21 days ago.

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