[arch-haskell] Re: [extra] haskell-parallel
phercek at gmail.com
Thu Nov 11 11:31:27 EST 2010
On 11/11/2010 04:20 PM, Peter Simons wrote:
> > http://linode3.kiwilight.com/~magnus.therning/archhaskell/x86_64/
> I completely agree that the naming scheme is sound. I don't see, however,
> how other packages are going to use it. Could you show us a concrete
> example, please? What does a package like, say haskell-pandoc, depend on?
Well, I may be wrong (I'm not a pacman expert), but the haskell-hp-...
packages contain "provides fields" for the corresponding versions of
So it depends whether your version of pandoc package is expected to be
used with the last haskell platform version, in which case it should
require haskell-hp-... as a dependency, or whether it is supposed to be
used with the latest versions of all of its dependencies, in which case
it would require haskell-... package (with specified usable version range).
If your last haskell platform has recent enough versions of libs then
your haskel-pandoc package which depends only on haskell-... packages
(if you wanted it to be bleeding edge) will compile and install just
fine thanks to the provide fields in the haskel-hp... packages.
My opinion is that everything bleeding edge (aur source code (self
compile) versions) should depend only on haskell-... packages and not on
haskel-hp-... packages. The only thing which can depend on
haskell-hp-... packages are haskell platform packages themselves or
something you want to provide in binary form and don't want to update it
every time some dependency is updated.
Since the latest versions are updated often and not everything compiles
with them, it does not look useful to try to keep binary versions up to
date for things which do not depend on haskell platform only. Of course
it is possible to create a system which can answer a question like:
"I want the latest possible version of pandoc, gtk2hs-gtk and
gtk2hs-glade. Find the latest versions of these packages and the latest
versions of all the packages these depend on recursively so that it all
With a bit of luck one can answer this from the cabal files (provided
their version dependency info is correct). Whether it would actually
compile is another problem. And whether the result would work is
something completely different.
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