From cdb9334d61bcfe970ccda62e34795ecde729ff50 Mon Sep 17 00:00:00 2001
From: Galen Huntington <galenhuntington@gmail.com>
Date: Mon, 27 Aug 2018 20:40:01 -0700
Subject: [PATCH] Language extension needed for GHC 8.6. (#317)

---
 Text/Megaparsec/Error.hs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Text/Megaparsec/Error.hs b/Text/Megaparsec/Error.hs
index 87b7ca0..92a345a 100644
--- a/Text/Megaparsec/Error.hs
+++ b/Text/Megaparsec/Error.hs
@@ -26,6 +26,7 @@
 {-# LANGUAGE RecordWildCards     #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE StandaloneDeriving  #-}
+{-# LANGUAGE UndecidableInstances#-}
 
 module Text.Megaparsec.Error
   ( -- * Parse error type