Instances imported multiple times about doctest

[sol]

@robinp I can't reproduce this. Can you please add the output of doctest --version?

BTW: Sorry for the slow turnaround ;)

[robinp]

Hello, just cabal-installed doctest and retried, same message. Versions:

$ doctest --version
doctest version 0.9.5.1
using version 7.4.1 of the GHC API
using /usr/lib/ghc/bin/ghc-7.4.1

[sol]

This seems to be a bug in ghc-7.4.1/ghc-7.4.2. Doctest uses GHCi under the hood, so things that do not work in GHCi won't work with Doctest.

If you upgrade to ghc-7.6.1 or ghc-7.6.2 then your example will work both in GHCi and with Doctest.

[sol]

I'm closing this because I think there is nothing we can do about this in Doctest.

@robinp If you have any ideas how to address this then please open a pull request ;)