[bug#44174] [PATCH v2 00/15] Add hledger and its dependencies.

[Carlo Holl]

On 01.11.2020 19:22, Ricardo Wurmus wrote:
> Christopher Baines <mail@cbaines.net> writes:
>
> > > Carlo Holl (15):
> > >   gnu: Add ghc-control-monad-free.
> > >   gnu: Add ghc-csv.
> > >   gnu: Add ghc-decimal.
> > >   gnu: ghc-doctest: Update to 0.16.3.
> > >   gnu: Add ghc-hspec-megaparsec.
> > >   gnu: Add ghc-lucid.
> > >   gnu: Add ghc-only.
> > >   gnu: Add ghc-text-short.
> > >   gnu: Add ghc-tabular.
> > >   gnu: Add ghc-uglymemo.
> > >   gnu: Add ghc-wizards.
> > >   gnu: Add ghc-cassava.
> > >   gnu: Add ghc-cassava-megaparsec.
> > >   gnu: Add ghc-hledger-lib.
> > >   gnu: Add hledger.
> > >
> > >  gnu/packages/finance.scm     |  63 ++++
> > >  gnu/packages/haskell-xyz.scm | 557 ++++++++++++++++++++++++++++++++++-
> > >  2 files changed, 608 insertions(+), 12 deletions(-)
> >
> > Awesome! I went through and tweaked some descriptions and wrapping and
> > pushed to master as e6bfb02eb79777b760031384d4a3c14239f7fb55.
>
> Unfortunately, some of these packages are the latest versions on
> Hackage, but we need to ensure that all Haskell packages are picked at
> versions corresponding to the currently supported version of LTSHaskell
> in Guix.  We are behind the current LTSHaskell with our packages, so now
> we have the situation where we have packages that are *newer* than the
> latest LTSHaskell release and packages that are *older* than what the
> latest LTSHaskell release prescribes.
>
> We should fix this soon, because mixing Haskell packages from different
> LTS releases (or even ignoring the LTS releases in favour of the latest
> versions on Hackage) results in dependency hell for those users who want
> to use Guix for Haskell development.
>
> --
> Ricardo

Ricardo,

Thanks for the heads-up. I can have a go at submitting a patch series to deal 
with this if you like. Since this would involve a downgrade, is there anything 
I need to watch out for?

--
Carlo Holl
carloholl@gmail.com