Haddock build failure under GHC-6.8.3

[oddron@…]

Haddock 2.1.0 fails to build under ghc-6.8.3. Here is the error I'm getting:

[15 of 24] Compiling Haddock.GHC.Typecheck ( src/Haddock/GHC/Typecheck.hs, dist/build/haddock/haddock-tmp/Haddock/GHC/Typecheck.o )

src/Haddock/GHC/Typecheck.hs:82:4:

Constructor `HsModule?' should have 7 arguments, but has been given 8 In the pattern: HsModule? _ _ _ _ _ mbOpts _ _ In a pattern binding: HsModule? _ _ _ _ _ mbOpts _ _ = unLoc parsed In the definition of `mkGhcModule':

mkGhcModule (mod, file, checkedMod) dynflags

= GhcModule?

{ghcModule = mod, ghcFilename = file,

ghcMbDocOpts = mbOpts,

ghcHaddockModInfo = info, ghcMbDoc = mbDoc,

ghcGroup = group,

ghcMbExports = mbExports, ghcExportedNames = modInfoExports modInfo, ghcNamesInScope = fromJust $

modInfoTopLevelScope modInfo,

ghcInstances = modInfoInstances modInfo}

where

HsModule? _ _ _ _ _ mbOpts _ _ = unLoc parsed (group, _, mbExports, mbDoc, info) = renamed (parsed, renamed, _, modInfo) = checkedMod

[ak47]

following worked for me :

1) add "import FastString?" to the top of the file 2) remove one of the _'s before mbOpts on that line that gives the error 3) on line 72 of the original file (probably 73 after step 1), insert 'fmap unpackFS' before 'mbOpts'.

(fix by Matti Niemenmaa, http://www.nabble.com/Haddock-compilationproblem-td18022005.html , no linking problems on my install)

[EricKow]

Another simple workaround is just to delete the line with mbOpts in it, and set ghcMbDocOpts to Nothing

Not sure what I lose in the process, though.

[anonymous]

Milestone 2.2.0 deleted