4 files changed, 9 insertions, 4 deletions
diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index ccd0a75297..52982c1185 100644
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -976,7 +976,7 @@ defaultLogAction :: LogAction
 defaultLogAction dflags severity srcSpan style msg
     = case severity of
       SevOutput -> printSDoc msg style
-      SevDump   -> hPrintDump stdout msg
+      SevDump   -> hPrintDump dflags stdout msg
       SevInfo   -> printErrs msg style
       SevFatal  -> printErrs msg style
       _         -> do hPutChar stderr '\n'
diff --git a/compiler/main/DynFlags.hs-boot b/compiler/main/DynFlags.hs-boot
new file mode 100644
index 0000000000..f7d17f496b
--- /dev/null
+++ b/compiler/main/DynFlags.hs-boot
@@ -0,0 +1,4 @@
+
+module DynFlags where
+
+data DynFlags
diff --git a/compiler/main/ErrUtils.lhs b/compiler/main/ErrUtils.lhs
index eeb5e91c8a..c97ab2aef2 100644
--- a/compiler/main/ErrUtils.lhs
+++ b/compiler/main/ErrUtils.lhs
@@ -247,7 +247,7 @@ dumpSDoc dflags dflag hdr doc
                             writeIORef gdref (Set.insert fileName gd)
                         createDirectoryIfMissing True (takeDirectory fileName)
                         handle <- openFile fileName mode
-                        hPrintDump handle doc
+                        hPrintDump dflags handle doc
                         hClose handle
 
             -- write the dump to stdout
diff --git a/compiler/utils/Outputable.lhs b/compiler/utils/Outputable.lhs
index 5f4b1ff493..738b835537 100644
--- a/compiler/utils/Outputable.lhs
+++ b/compiler/utils/Outputable.lhs
@@ -71,6 +71,7 @@ module Outputable (
         pprDebugAndThen,
     ) where
 
+import {-# SOURCE #-}   DynFlags( DynFlags )
 import {-# SOURCE #-}   Module( Module, ModuleName, moduleName )
 import {-# SOURCE #-}   Name( Name, nameModule )
 
@@ -319,8 +320,8 @@ ifPprDebug d = SDoc $ \ctx ->
 \end{code}
 
 \begin{code}
-hPrintDump :: Handle -> SDoc -> IO ()
-hPrintDump h doc = do
+hPrintDump :: DynFlags -> Handle -> SDoc -> IO ()
+hPrintDump _ h doc = do
    Pretty.printDoc PageMode h
      (runSDoc better_doc (initSDocContext defaultDumpStyle))
    hFlush h