[Haskell-cafe] impoosible dependencies

[Carter Schonwald]

Kevin,
what version of cabal install are you using?

I ask because prior to the 1.10.* version series, cabal would have a much
harder time "correctly" choosing versions of dependencies, which at least
for me often manifested as such confusions in caba regarding selecting
versions. Prior to said cabal version the solution I'd often do is figure
out what the "transitive " dependencies were, recompile them together,
iterate that, and that would eventually make the problems  go away.

point being: the issue is probably conflicting versions of the same
libraries are being used by different libraries that are among the
dependencies, and cabal is getting confused

On Wed, Apr 20, 2011 at 7:34 PM, Rogan Creswick <creswick at gmail.com> wrote:

> On Wed, Apr 20, 2011 at 4:18 PM, Kevin Quick <quick at sparq.org> wrote:
> >
> > With --verbose=3 this appears to be post-link running cabal-dev itself:
> >
> > $ cabal install cabal-dev --verbose=3
> >
>
> Could you send me (or post to hpaste) the complete output of 'cabal
> install cabal-dev --verbose=3' ?
>
> --Rogan
>
> > ...
> >
> > *** Deleting temp files:
> > Deleting:
> > link: linkables are ...
> > LinkableM (Wed Apr 20 16:14:58 MST 2011) main:Main
> >   [DotO /tmp/cabal-dev-0.7.4.113193/cabal-dev-0.7.4.1/dist/setup/Main.o]
> > Linking /tmp/cabal-dev-0.7.4.113193/cabal-dev-0.7.4.1/dist/setup/setup
> ...
> > *** Linker:
> > ...[verbose GCC output elided]...
> > rtend.o
> /nix/store/l8x3fdy1r6zf441vnqa87lzsvxrjbdz9-glibc-2.11.1/lib/crtn.o
> > link: done
> > *** Deleting temp files:
> > Deleting:
> > *** Deleting temp dirs:
> > Deleting: /tmp/ghc13224_0
> > /tmp/cabal-dev-0.7.4.113193/cabal-dev-0.7.4.1/dist/setup/setup configure
> > --verbose=3 --ghc --prefix=/home/kquick/.cabal --user
> --flags=-build-tests
> > --flags=-no-cabal-dev
> --extra-include-dirs=/home/kquick/.nix-profile/include
> > --extra-lib-dirs=/home/kquick/.nix-profile/lib --constraint=Cabal
> ==1.10.1.0
> > --constraint=HTTP ==4000.1.1 --constraint=base ==4.2.0.2
> > --constraint=bytestring ==0.9.1.9 --constraint=directory ==1.0.1.1
> > --constraint=filepath ==1.1.0.4 --constraint=mtl ==2.0.1.0
> > --constraint=network ==2.3.0.2 --constraint=pretty ==1.0.1.1
> > --constraint=process ==1.0.1.3 --constraint=tar ==0.3.1.0
> --constraint=zlib
> > ==0.5.3.1
> > cabal: Error: some packages failed to install:
> > cabal-dev-0.7.4.1 failed during the configure step. The exception was:
> > ExitFailure 11
> > $
> >
> >
> > --
> > -KQ
> >
>
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