[GHC] #1712: unknown symbol “glutGet”

[Manuel M T Chakravarty]

Wolfgang Jeltsch schrieb:
> Am Mittwoch, 24. Oktober 2007 11:49 schrieb Simon Peyton-Jones:
>> However, as you know indexed type families aren't supported in 6.8.  (They
>> will be in 6.10.)   So while Grapefruit may, just, *work* with 6.8, it's
>> likely to be fragile, and we may well end up saying "wont-fix" to bugs that
>> subsequently show up.
[..]
> this is not as I understood it originally but meanwhile I understand that this 
> is just the way it is.  At the moment, Grapefruit “just works” with 
> GHC 6.8.0.20071019 (after including some workarounds which don’t always have 
> something to do with type-family-related bugs).  I hope that Grapefruit will 
> still work with 6.8.1 and the further versions of the 6.8 branch.

I am sorry about that misunderstanding and, if there are any 
critical problems, I'll at least try to fix them, as long as the 
needed changes are not disruptive to the rest of the 6.8 branch.

> I need a suitable record system for Grapefruit (which supports defaulting for 
> input record fields and leaving out fields in output records).  Since I 
> failed to implement one based on functional dependencies in the first place, 
> I switched to type families.  They make certain things possible which seem to 
> be impossible with functional dependencies.

Could you elaborate on that?

Manuel