[Haskell-cafe] Haskell on Debian

[Alex Rozenshteyn]

I did try that; after adding a bunch of packages to the .cabal file and
trying to build i get this:
[ 1 of 81] Compiling Plugin.Dict.DictLookup ( Plugin/Dict/DictLookup.hs,
dist/build/lambdabot/lambdabot-tmp/Plugin/Dict/DictLookup.o )

Plugin/Dict/DictLookup.hs:33:4:
    Ambiguous type variable `e' in the constraint:
      `GHC.Exception.Exception e'
        arising from a use of `handle' at Plugin/Dict/DictLookup.hs:33:4-42
    Probable fix: add a type signature that fixes these type variable(s)
cabal: Error: some packages failed to install:
lambdabot-4.2.2.1 failed during the building phase. The exception was:
ExitFailure 1

On Mon, Apr 5, 2010 at 11:25 AM, Daniel Fischer <daniel.is.fischer at web.de>wrote:

> Am Montag 05 April 2010 17:19:35 schrieb Alex Rozenshteyn:
> > Anyone?
>
> "base" isn't listed among the build-depends of the executable, so the
> obvious thing is to add base to the build-depends and see what happens then
> (might also be necessary for some other packages).
>
> I'm not sure whether iterating that strategy will get lambdabot to build or
> it's too bit-rotted, so prepare to dive into the sources if you really want
> it to build.
>
> >
> > On Wed, Mar 31, 2010 at 9:18 PM, Alex Rozenshteyn
> <rpglover64 at gmail.com>wrote:
> > > $ ghc-pkg check
> > >
> > > outputs nothing
> > >
> > > $ ghc-pkg list unix
> > > /var/lib/ghc-6.12.1/package.conf.d
> > >    unix-2.4.0.0
> > > /home/alex/.ghc/x86_64-linux-6.12.1/package.conf.d
> > >
> > > "unix" appears to be in the build-depends of the "Library", but not in
> > > the build-depends of "Executable lambdabot"
> > > Adding "unix" to the second build-depends appears to fix the error
> > > (but now it complains that base is hidden).
> > >
> > > On Wed, Mar 31, 2010 at 8:48 PM, Ivan Miljenovic <
> > >
> > > ivan.miljenovic at gmail.com> wrote:
> > >> On 1 April 2010 11:42, Alex Rozenshteyn <rpglover64 at gmail.com> wrote:
> > >> > Main.hs:11:7:
> > >> >     Could not find module `System.Posix.Signals':
> > >> >       It is a member of the hidden package `unix-2.4.0.0'.
> > >> >       Perhaps you need to add `unix' to the build-depends in your
> > >> > .cabal file.
> > >>
> > >> Interesting, because unix _is_ listed in build-depends in the .cabal
> > >> file for lambdabot.
> > >>
> > >> Does "ghc-pkg check" complain about unix?  Does "ghc-pkg list unix"
> > >> say it's there?
> > >>
> > >> > I have a feeling this has something to do with the interaction
> > >> > between
> > >>
> > >> cabal
> > >>
> > >> > and apt...
> > >>
> > >> Highly unlikely unless there's an inconsistency in the packages on
> > >> your system.
> > >>
> > >> --
> > >> Ivan Lazar Miljenovic
> > >> Ivan.Miljenovic at gmail.com
> > >> IvanMiljenovic.wordpress.com
> > >
> > > --
> > >          Alex R
>
>


-- 
         Alex R
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