[Haskell-cafe] Fwd: hackage compile failure with QuickCheck 2.5

[Antoine Latter]

Cabal doesn't play well with version constraints on the template-haskell
package - it doesn't know it can't reinstall template-haskell.

The workaround is to figure out why QuickCheck has version constraints on
template-haskell and solve that problem in the QuickCheck package a
different way - perhaps with CPP conditonal compilation macros - and then
remove the problematic version constraints.
On Jul 17, 2012 11:44 AM, "Alexander Foremny" <alexanderforemny at gmail.com>
wrote:

> Dear Levent,
>
> unfortunately I am at a loss here. As far as I understand it this
> should be fixed in QuickCheck's .cabal file or on Hackage. But I am
> not experienced enough to decide.
>
> You best wait for someone else to comment on this. Depending on
> template-haskell in your .cabal file is not the way to go as far as I
> understand it. But maybe it's a possible work-around in case you
> depend on the package being available on Hackage timely.
>
> Regards,
> Alexander Foremny
>
> 2012/7/17 Levent Erkok <erkokl at gmail.com>:
> > It builds fine locally on my box; but not on hackage. Here's the page:
> > http://hackage.haskell.org/package/sbv-2.2
> >
> > Thanks for looking into this Alexander, I appreciate your help.
> >
> > -Levent.
> >
> >
> > On Tue, Jul 17, 2012 at 9:09 AM, Alexander Foremny
> > <alexanderforemny at gmail.com> wrote:
> >>
> >> Which package are you trying to build? Is it a local package that
> >> fails to build or something on Hackage? Its .cabal file or at least
> >> full dependencies would be of interest.
> >>
> >> Regards,
> >> Alexander Foremny
> >>
> >> 2012/7/17 Levent Erkok <erkokl at gmail.com>:
> >> > Thanks Alexander. However, I'm not sure how to use the workaround
> >> > described
> >> > so I can get hackage to properly compile my package. It sounds like I
> >> > have
> >> > to add a "template-haskell >= 2.7.0.0"  dependency to my own cabal
> file,
> >> > which sounds like the wrong thing to do in the long-run.
> >> >
> >> > Is there something that can be done on the hackage/ghc side to avoid
> >> > this
> >> > issue? Or something less drastic than adding a template-haskell
> >> > dependency
> >> > on my own package's cabal file?
> >> >
> >> > Thanks,
> >> >
> >> > -Levent.
> >> >
> >> >
> >> > On Tue, Jul 17, 2012 at 7:31 AM, Alexander Foremny
> >> > <alexanderforemny at gmail.com> wrote:
> >> >>
> >> >> Dear Levent,
> >> >>
> >> >> I think this [1] could be related.
> >> >>
> >> >> Regards,
> >> >> Alexander Foremny
> >> >>
> >> >> PS. Sent this to Levent directly. Here's a copy for the mailing list.
> >> >> Sorry for the noise.
> >> >>
> >> >> [1]
> >> >>
> >> >>
> http://haskell.1045720.n5.nabble.com/Bad-interface-problem-td5714184.html
> >> >>
> >> >> ---------- Forwarded message ----------
> >> >> From: Alexander Foremny <alexanderforemny at gmail.com>
> >> >> Date: 2012/7/17
> >> >> Subject: Re: [Haskell-cafe] hackage compile failure with QuickCheck
> 2.5
> >> >> To: Levent Erkok <erkokl at gmail.com>
> >> >>
> >> >>
> >> >> Dear Levent,
> >> >>
> >> >> I think this [1] could be related.
> >> >>
> >> >> Regards,
> >> >> Alexander Foremny
> >> >>
> >> >> [1]
> >> >>
> >> >>
> http://haskell.1045720.n5.nabble.com/Bad-interface-problem-td5714184.html
> >> >>
> >> >> 2012/7/17 Levent Erkok <erkokl at gmail.com>:
> >> >> > [This message is more appropriate for a hackage mailing list I
> >> >> > presume,
> >> >> > but
> >> >> > that doesn't seem to exist. Let me know if there's a better place
> to
> >> >> > send
> >> >> > it.]
> >> >> >
> >> >> > I'm having a hackage compile failure for a newly uplodaded package
> >> >> > that
> >> >> > has
> >> >> > a QuickCheck 2.5 dependence. The error message is:
> >> >> >
> >> >> > [13 of 13] Compiling Test.QuickCheck.All ( Test/QuickCheck/All.hs,
> >> >> > dist/build/Test/QuickCheck/All.o )
> >> >> >
> >> >> > Test/QuickCheck/All.hs:15:1:
> >> >> >     Bad interface file:
> >> >> >
> >> >> >
> >> >> >
> /usr/local/tmp/archive/install/lib/template-haskell-2.6.0.0/ghc-7.4.1/Language/Haskell/TH.hi
> >> >> >         Something is amiss; requested module
> >> >> > template-haskell-2.6.0.0:Language.Haskell.TH differs from name
> found
> >> >> > in
> >> >> > the
> >> >> > interface file template-haskell:Language.Haskell.TH
> >> >> >
> >> >> >
> >> >> > The full log file is at (search for "Something is a miss" in it):
> >> >> >
> >> >> >
> http://hackage.haskell.org/packages/archive/sbv/2.2/logs/failure/ghc-7.4
> >> >> >
> >> >> > Needless to say, I don't see this problem when I compile this
> package
> >> >> > at
> >> >> > home with the same compiler (ghc 7.4.1) as hackage is using; also
> >> >> > Hackage
> >> >> > has a successfully compiled QuickCheck 2.5 package.
> >> >> >
> >> >> > Could it be something related to the particular cabal/ghc
> >> >> > installation
> >> >> > on
> >> >> > the hackage server? In particular, I don't understand why it picks
> >> >> > template-haskell 2.6.0.0 when there's a newer version (2.7.0.0). As
> >> >> > far
> >> >> > as I
> >> >> > can see, QuickCheck doesn't put an upper limit on its template
> >> >> > haskell
> >> >> > version dependency.
> >> >> >
> >> >> > I'd appreciate any pointers with this. (Googling and questions on
> the
> >> >> > #haskell irc channel didn't help much, unfortunately.)
> >> >> >
> >> >> > -Levent.
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > Haskell-Cafe mailing list
> >> >> > Haskell-Cafe at haskell.org
> >> >> > http://www.haskell.org/mailman/listinfo/haskell-cafe
> >> >> >
> >> >>
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> >> >
> >> >
> >>
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> >
>
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