[arch-haskell] ghc-vis

[stef204]

13.10.2015, 13:55, "Barry Fishman" <barry_fishman at acm.org>:

>
> Arch runs the new GHC 7.10 release. When GHC went from 7.8 to 7.10
> there were incompatible changes made to the base packages. ghc-vis
> has issues with the updated base packages, described in its bug report
> list (with possible workarounds):
>
>   https://github.com/def-/ghc-vis/issues/7
>

yes, saw that when digging some more and this <https://github.com/FranklinChen/ghc-vis/tree/update-for-710> but fails as well.

> Your builds are failing when trying to build old versions
> of glib and cairo (prior to their ghc 7.10 fixes).
>

I believe I do have the new versions but cabal wants to pull in the old version based on the deps listed by ghc-vis, I imagine.

> It also seem graphviz has also not yet been updated:
>
>   http://hub.darcs.net/ivanm/graphviz/issue/5
>

I see that now, thanks.

All of this is very frustrating for someone eager to lean Haskell and running into this.

I have now looked at stack and stackage and better understand the differences and similarities and will probably try to favor stack over cabal.

As well I have looked further into cblrepo and the ability to create an Arch package to install via pacman, but I guess that\s further down the line.

As an alternative to ghc-vis, I looked at vacuum but running into similar problems.

I was basically looking at a way both to visualize data and so stepwise evaluation in Haskell, to help me better understand the language, functions and expressions, etc.

I guess I will focus on the debugger for that and see if I can find my way around.

Any other suggestions, please feel free.