3 files changed, 10 insertions, 0 deletions
diff --git a/src/Haddock/Exception.hs b/src/Haddock/Exception.hs
index 385f36a9..a1886ba2 100644
--- a/src/Haddock/Exception.hs
+++ b/src/Haddock/Exception.hs
@@ -5,6 +5,9 @@
 --
 
 
+{-# LANGUAGE DeriveDataTypeable #-}
+
+
 module Haddock.Exception (
   HaddockException,
   throwE
diff --git a/src/Haddock/Interface/AttachInstances.hs b/src/Haddock/Interface/AttachInstances.hs
index e3acc6cf..7356b9be 100644
--- a/src/Haddock/Interface/AttachInstances.hs
+++ b/src/Haddock/Interface/AttachInstances.hs
@@ -5,6 +5,9 @@
 --
 
 
+{-# LANGUAGE MagicHash #-}
+
+
 module Haddock.Interface.AttachInstances (attachInstances) where
 
 
diff --git a/src/Haddock/Utils.hs b/src/Haddock/Utils.hs
index ca21c020..8f5b087c 100644
--- a/src/Haddock/Utils.hs
+++ b/src/Haddock/Utils.hs
@@ -5,6 +5,10 @@
 -- (c) Simon Marlow 2003
 --
 
+
+{-# LANGUAGE PatternSignatures #-}
+
+
 module Haddock.Utils (
 
   -- * Misc utilities