further support deriving instances Typeable1, Typeable2, etc
ghc-7.8.20140130 complains with
Not in scope: type constructor or class ‛Typeable2’
Perhaps you meant ‛Typeable’ (imported from Data.Typeable)
changing Typeable2 to Typeable fixes it but is incompatible with ghc-7.6:
Expecting two more arguments to `Gr'
In the stand-alone deriving instance for `Typeable Gr'
Trac metadata
Trac field | Value |
---|---|
Version | 7.8.1-rc1 |
Type | Task |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | simonpj |
Operating system | |
Architecture |