Re: Can't install Criterion package on ghc ..

I'm not the original reporter, but I can confirm that I am able to install Criterion-0.5.0 with ghc-6.12.1 on OSX 10.6. One datum, anyway. The problem isn't with criterion itself, but with vector-algorithms. The vector library relies heavily on type families, which have dodgy support in ghc-6.10. John On Wed, Apr 14, 2010 at 3:24 PM, Simon Peyton-Jones wrote:

Can you check?  If it still happens with 6.12, please submit a bug report. If 6.10 can't compile criterion, you might want to add a constraint to the Cabal meta-data.

Simon

| -----Original Message----- | From: glasgow-haskell-users-bounces@haskell.org [mailto:glasgow-haskell- | users-bounces@haskell.org] On Behalf Of John Lato | Sent: 13 April 2010 16:15 | To: Mozhgan kabiri | Cc: glasgow-haskell-users@haskell.org | Subject: Re: Can't install Criterion package on ghc .. | | > From: Mozhgan kabiri | > | > Hi, | > | > I am trying to install Criterion package, but I keep getting an error and I | > can't figure it out why it is like this !! | > | > mozhgan@Mozhgan-KCh:~$ cabal install Criterion | > Resolving dependencies... | > Configuring vector-algorithms-0.3... | > Preprocessing library vector-algorithms-0.3... | > Building vector-algorithms-0.3... | ... | | > [8 of 9] Compiling Data.Vector.Algorithms.Intro ( | > Data/Vector/Algorithms/Intro.hs, dist/build/Data/Vector/Algorithms/Intro.o | ) | > ghc: panic! (the 'impossible' happened) | >  (GHC version 6.10.4 for i386-unknown-linux): | >    idInfo co{v a9WB} [tv] | | This is definitely a bug in GHC, most likely related to type families | and fixed in GHC-6.12.x | | If you can upgrade to ghc-6.12.1, that should solve this problem.  If | you need to remain on ghc-6.10.4, try installing an older version of | criterion.  You can do this with 'cabal install criterion-0.4.1.0' | Criterion-0.5 is the first version to depend upon vector-algorithms, | so any previous version has a chance of working. | | John | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users@haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users