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-rw-r--r--compiler/utils/Binary.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/utils/Binary.hs b/compiler/utils/Binary.hs
index e9b71236f2..166a94850b 100644
--- a/compiler/utils/Binary.hs
+++ b/compiler/utils/Binary.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS -cpp #-}
+{-# LANGUAGE CPP, MagicHash, UnboxedTuples #-}
{-# OPTIONS_GHC -O -funbox-strict-fields #-}
-- We always optimise this, otherwise performance of a non-optimised
-- compiler is severely affected