From 7a1d0f01e94d115f361ead110b60174bfc732033 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Tue, 9 Mar 2021 12:34:01 -0800
Subject: Use -Wunused-packages on ghc >= 8.10.

---
 pandoc.cabal | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pandoc.cabal b/pandoc.cabal
index d6c463786..5df9f734e 100644
--- a/pandoc.cabal
+++ b/pandoc.cabal
@@ -404,6 +404,8 @@ common common-options
                     -Wincomplete-record-updates
                     -Wnoncanonical-monad-instances
 
+  if impl(ghc >= 8.10)
+    ghc-options:      -Wunused-packages
   if impl(ghc < 8.4)
     hs-source-dirs:   prelude
     other-modules:    Prelude
-- 
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