[arch-haskell] [jgm@berkeley.edu: Re: Pandoc restriction for Parsec <3]

Magnus Therning magnus at therning.org
Tue Feb 16 01:58:48 EST 2010

On 16/02/10 01:09, Don Stewart wrote:
> The main user of parsec -- pandoc -- is *not* going to move to parsec 3,
> since it is twice as slow.
> That means that neither is the Haskell Platform
> That means that we should downgrade to parsec 2 on arch and *not move to
> parsec 3 for the foreseeable future*.

Is there any plan to still provide parsec 3 in Arch?

As we all know, GHC is capable of having several versions of one package
installed.  Pacman needs separate names for the packages, but that feels like
a minor issue.  The only issue I see is with cabal2arch (since we want it as
automated as possible).  Can cabal2arch handle it?

A possibly naive idea would be the following:

 - pacman package "parsec" is parsec 2
 - pacman package "parsec3" is parsec 3
 - cabal2arch maps dependencies on "parsec >2" to "parsec3", and all other to


Magnus Therning                        (OpenPGP: 0xAB4DFBA4)
magnus@therning.org          Jabber: magnus@therning.org
http://therning.org/magnus         identi.ca|twitter: magthe

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