Commit 69c82de7 authored by Simon Peyton Jones's avatar Simon Peyton Jones
Browse files

Accept output change

parent 994a9db6
No instance for (Show (v (v a)))
arising from the 'deriving' clause of a data type declaration at drvfail003.hs:13:5
Possible fix: add an instance declaration for (Show (v (v a)))
When deriving the `Show' instance for type `Square_'
Variable occurs more often in a constraint than in the instance head
in the constraint: Show (v (v a))
(Use -fallow-undecidable-instances to permit this)
In the derived instance
instance (Show (v (v a))) => Show (Square_ v w a)
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