Re: [Haskell-cafe] change in overlapping instance behavior between GHC 6.12 and GHC 7 causes compilation failure

2010-11-03 Thread David Fox
I would love to know the answer to this. On Tue, Nov 2, 2010 at 3:36 PM, Jeremy Shaw jer...@n-heptane.com wrote: Hello, I have a module, XMLGenerator, which has some overlapping instances. I have a second module, Test, which imports that module and also adds some more overlapping instances.

[Haskell-cafe] change in overlapping instance behavior between GHC 6.12 and GHC 7 causes compilation failure

2010-11-02 Thread Jeremy Shaw
Hello, I have a module, XMLGenerator, which has some overlapping instances. I have a second module, Test, which imports that module and also adds some more overlapping instances. Both modules contain {-# LANGUAGE OverlappingInstances #-} at the top. Under some old version of 6.13 (and probably