2009/2/6 Duncan Coutts
Yes, against my better judgement the code in Cabal for haddock-2.x does not run cpp or unliting like it does for haddock-0.x. Instead it assumes that haddock-2.x will do all the cpp and unliting itself. Obviously this mean the special unliting mode that Cabal provides is not usable with haddock-2.x.
The solution is to do the pre-processing the same for haddock-0.x and 2.x. Generally the haddock code in Cabal is a horrible inconsistent mess. I believe Andrea Vezzosi has been looking at rewriting it, which is good news.
In Distribution.Simple.Haddock, in the haddock function we have: withLib pkg_descr () $ \lib -> do let bi = libBuildInfo lib modules = PD.exposedModules lib ++ otherModules bi inFiles <- getLibSourceFiles lbi lib unless isVersion2 $ mockAll bi inFiles So I guess the easiest thing to do right now is remove the "unless isVersion2 $" . I'm testing this at the moment, so when I get it working (or not) I'll let you know, and maybe send a patch. Alistair