#810: GHC complains about missing instance in conjunction with GADTs
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Reporter: [EMAIL PROTECTED] | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.4.1
Severity: normal | Resolution:
Keywords: | Os: Linux
Difficulty: Unknown | Architecture: x86
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Comment (by simonpj):
The odd thing is that it works with 6.4.2 (batch, not GHCi). Maybe Chris
can try again?
My comment about luck is simply that GHC is badly broken when it comes to
a mixture of type classes and GADTs. It's something high on my priority
list, but for you can't rely on it to behave well, or even predictably.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/810>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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