Use NoImplicitPrelude and explicitly import Prelude.

This seems to be necessary if we are to use our custom Prelude
with ghci.

Closes #4464.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/Text/Pandoc/Writers/Haddock.hs b/src/Text/Pandoc/Writers/Haddock.hs
index dfa1d8b57..75b8c78dc 100644
--- a/src/Text/Pandoc/Writers/Haddock.hs
+++ b/src/Text/Pandoc/Writers/Haddock.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE NoImplicitPrelude #-}
 {-# LANGUAGE OverloadedStrings   #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 
@@ -33,6 +34,7 @@ Conversion of 'Pandoc' documents to haddock markup.
 Haddock:  <http://www.haskell.org/haddock/doc/html/>
 -}
 module Text.Pandoc.Writers.Haddock (writeHaddock) where
+import Prelude
 import Control.Monad.State.Strict
 import Data.Default
 import Data.Text (Text)