[Haskell-cafe] portable arrow instances

[Conal Elliott]

Done!  Thanks for the suggestion.  - Conal

On Wed, Nov 19, 2008 at 9:43 PM, Don Stewart <dons at galois.com> wrote:

> Could you add this info/link to the upgrading page?
>
>    http://www.haskell.org/haskellwiki/Upgrading_packages#Arrow_instances>,
>
> Using social/community processes to parallelise the job of finding all
> the upgrade routes -- I like it :-)
>
> -- Don
>
>
> conal:
> >    Hi Wolfgang,
> >
> >    I use CPP to manage such differences between 6.8, 6.9, and 6.10.  As
> an
> >    example, see
> >    [1]
> http://hackage.haskell.org/packages/archive/TypeCompose/latest/doc/html/src/Control-Compose.html
> >    .
> >
> >    Regards, - Conal
> >
> >    On Tue, Nov 18, 2008 at 6:01 AM, Wolfgang Jeltsch
> >    <[2]g9ks157k at acme.softbase.org> wrote:
> >
> >      Hello,
> >
> >      how do I make a library work with both GHC 6.8 and GHC 6.10?
>  According
> >      to
> >      <[3]
> http://www.haskell.org/haskellwiki/Upgrading_packages#Arrow_instances>,
> >      I
> >      should change all my Arrow instances but then they don't work with
> GHC
> >      6.8
> >      anymore, do they?  Or is the solution to force GHC 6.8 users to use
> >      base-4.0.0.0?
> >
> >      Best wishes,
> >      Wolfgang
> >      _______________________________________________
> >      Haskell-Cafe mailing list
> >      [4]Haskell-Cafe at haskell.org
> >      [5]http://www.haskell.org/mailman/listinfo/haskell-cafe
> >
> > References
> >
> >    Visible links
> >    1.
> http://hackage.haskell.org/packages/archive/TypeCompose/latest/doc/html/src/Control-Compose.html
> >    2. mailto:g9ks157k at acme.softbase.org
> >    3.
> http://www.haskell.org/haskellwiki/Upgrading_packages#Arrow_instances
> >    4. mailto:Haskell-Cafe at haskell.org
> >    5. http://www.haskell.org/mailman/listinfo/haskell-cafe
>
> > _______________________________________________
> > Haskell-Cafe mailing list
> > Haskell-Cafe at haskell.org
> > http://www.haskell.org/mailman/listinfo/haskell-cafe
>
>
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