[bug#50843] [PATCHES] Stackage update to 18.10.

[Xinglu Chen]

On Mon, Sep 27 2021, Lars-Dominik Braun wrote:

> Hi everyone,
>
> I just pushed to the wip-haskell branch (it’s based on master),
> which now contains various changes to haskell-build-system as well
> as an update to Stackage 18.10 or the latest Hackage package version
> where applicable. CI is currently building the changes[1], but from
> local building I know all but three packages using haskell-build-system
> build. These are ngless, cabal-install and idris. I need your help to
> fix them!  There are also packages that cannot be updated via `guix
> refresh` currently. They have been left mostly untouched.
>
> I was also thinking about unconditionally adding
> --allow-newer/--allow-older to haskell-build-system, so patching
> .cabal-files is not necessary any more. Thoughs?
>
> Let’s use this issue to track/review the changes and provide feedback
> on them.

Below is a list of questions/things-that-should-be-fixed that I found.

* What exacty does the TODO comment for ‘ghc-hsyaml’ mean?  The
  ‘native-inputs’ comment should also be removed if tests aren’t
  enabled.  This applies to ‘ghc-stmonadtrans’ as well

* The ‘inputs’ comments for ‘ghc-silently’ should probably be removed.

I noticed that a lot of new packages have been auto-generated and added
as-is, without checking licenses and fixing descriptions.  I have
attached a patch that fixes these (I hope I didn’t miss any packages).

0001-fixup-gnu-Update-Haskell-ecosystem.patch
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