Can't install Criterion package on ghc ..

Roman Leshchinskiy rl at
Wed Apr 14 13:07:05 EDT 2010

On 15/04/2010, at 02:55, John Lato wrote:

> 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.

As a matter of fact, this particular problem is easy to fix by adding a couple of type signatures. I used to run into it frequently back when I was still working with 6.10. I'll send a patch.


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