5 files changed, 8 insertions, 4 deletions
diff --git a/haddock-api/src/Haddock/Backends/Hoogle.hs b/haddock-api/src/Haddock/Backends/Hoogle.hs
index 9a15c7b3..1c3dea7c 100644
--- a/haddock-api/src/Haddock/Backends/Hoogle.hs
+++ b/haddock-api/src/Haddock/Backends/Hoogle.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE FlexibleContexts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Haddock.Backends.Hoogle
@@ -84,7 +85,8 @@ dropHsDocTy = f
         f (HsDocTy a _) = f $ unL a
         f x = x
 
-outHsType :: OutputableBndr a => DynFlags -> HsType a -> String
+outHsType :: (OutputableBndr a, OutputableBndr (NameOrRdrName a))
+          => DynFlags -> HsType a -> String
 outHsType dflags = out dflags . dropHsDocTy
 
 
diff --git a/haddock-api/src/Haddock/Backends/LaTeX.hs b/haddock-api/src/Haddock/Backends/LaTeX.hs
index 81a23a1b..85716f33 100644
--- a/haddock-api/src/Haddock/Backends/LaTeX.hs
+++ b/haddock-api/src/Haddock/Backends/LaTeX.hs
@@ -300,6 +300,7 @@ ppDecl (L loc decl) (doc, fnArgsDoc) instances subdocs _fixities = case decl of
       ppLPatSig loc (doc, fnArgsDoc) lname ty unicode
   ForD d                         -> ppFor loc (doc, fnArgsDoc) d unicode
   InstD _                        -> empty
+  DerivD _                       -> empty
   _                              -> error "declaration not supported by ppDecl"
   where
     unicode = False
diff --git a/haddock-api/src/Haddock/Backends/Xhtml.hs b/haddock-api/src/Haddock/Backends/Xhtml.hs
index f7284062..8e9fd7ae 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml.hs
@@ -47,7 +47,7 @@ import Data.Function
 import Data.Ord              ( comparing )
 
 import DynFlags (Language(..))
-import GHC hiding ( NoLink, moduleInfo )
+import GHC hiding ( NoLink, moduleInfo,FunctionFixity(..) )
 import Name
 import Module
 
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
index fab6bf8d..e6dfce67 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
@@ -34,7 +34,7 @@ import qualified Data.Map as Map
 import           Data.Maybe
 import           Text.XHtml hiding     ( name, title, p, quote )
 
-import GHC
+import GHC hiding (FunctionFixity(..))
 import GHC.Exts
 import Name
 import BooleanFormula
@@ -54,6 +54,7 @@ ppDecl summ links (L loc decl) (mbDoc, fnArgsDoc) instances fixities subdocs spl
                                          ty fixities splice unicode qual
   ForD d                         -> ppFor summ links loc (mbDoc, fnArgsDoc) d fixities splice unicode qual
   InstD _                        -> noHtml
+  DerivD _                       -> noHtml
   _                              -> error "declaration not supported by ppDecl"
 
 
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs
index 5492178b..0f4dd51a 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs
@@ -26,7 +26,7 @@ import Text.XHtml hiding ( name, title, p, quote )
 import qualified Data.Map as M
 import qualified Data.List as List
 
-import GHC
+import GHC hiding (FunctionFixity(..))
 import Name
 import RdrName
 import FastString (unpackFS)