bug#53655: haskell build system cannot build attoparsec

[zimoun]

Hi,

On Wed, 23 Feb 2022 at 12:27, Philip Munksgaard <philip@munksgaard.me> wrote:

> The relevant section states:
>
> > This option outputs a directory if the package requires multiple 
> > registrations: this can occur if internal/convenience libraries are used. 
> > These configuration file names are sorted so that they can be registered in 
> > order.
>
> 0: 
> https://downloads.haskell.org/cabal/Cabal-3.0.0.0/doc/users-guide/installing-packages.html#cmdoption-setup-register-gen-pkg-config

Thanks.  Indeed, it may be the issue.


> I think we need to amend `haskell-build-system.scm` to be able to handle such 
> cases.

Well, such change is a core-updates change because it will rebuild the
world.  Let see if in the meantime, the attoparsec package could be
patched.


Cheers,
simon