Broken `cabal haddock --hoogle` with GHC 7.10

Ben Gamari ben at
Wed Feb 25 17:00:49 UTC 2015

Michael Snoyman <michael at> writes:

> I'm not really able to follow the details of this, but I wanted to raise to
> everyone's attention a serious bug with the current GHC 7.10 RC, Cabal
> 1.22, and/or Haddock. Currently, running `cabal haddock --hoogle` does not
> work. There seem to be two different issues open about it:
> I really don't understand the issues here, but I'd claim that the severity
> of this should probably be a blocker for a GHC 7.10 release.

There may be more to this issue that I am seeing at the moment but I
believe I have a fix here [1]. There's also a patch improving the error
handling in Haddock here [2].


- Ben

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