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-rw-r--r--compiler/GHC/HsToCore/Match/Literal.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/GHC/HsToCore/Match/Literal.hs b/compiler/GHC/HsToCore/Match/Literal.hs
index f4021d2e29..42075c6d4e 100644
--- a/compiler/GHC/HsToCore/Match/Literal.hs
+++ b/compiler/GHC/HsToCore/Match/Literal.hs
@@ -5,6 +5,8 @@
{-# LANGUAGE AllowAmbiguousTypes #-}
{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
+-- WW causes DynFlags to be reboxed (see #19407)
+{-# OPTIONS_GHC -fno-worker-wrapper #-}
{-
(c) The University of Glasgow 2006