haskell · mergify · Jan 26, 2025 · Jan 12, 2025
diff --git a/Cabal-QuickCheck/src/Test/QuickCheck/Instances/Cabal.hs b/Cabal-QuickCheck/src/Test/QuickCheck/Instances/Cabal.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE CPP           #-}
 {-# LANGUAGE FlexibleInstances #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module Test.QuickCheck.Instances.Cabal () where
 
 #if !MIN_VERSION_base(4,18,0)

diff --git a/Cabal-hooks/Cabal-hooks.cabal b/Cabal-hooks/Cabal-hooks.cabal
@@ -33,7 +33,7 @@ library
     , containers      >= 0.5.0.0   && < 0.8
     , transformers    >= 0.5.6.0   && < 0.7
 
-  ghc-options: -Wall -fno-ignore-asserts -fwarn-tabs -fwarn-incomplete-uni-patterns -fwarn-incomplete-record-updates
+  ghc-options: -Wall -fno-ignore-asserts -Wtabs -Wincomplete-uni-patterns -Wincomplete-record-updates
 
   exposed-modules:
     Distribution.Simple.SetupHooks

diff --git a/Cabal-syntax/Cabal-syntax.cabal b/Cabal-syntax/Cabal-syntax.cabal
@@ -48,10 +48,10 @@ library
   ghc-options:
     -Wall
     -fno-ignore-asserts
-    -fwarn-tabs
-    -fwarn-incomplete-uni-patterns
-    -fwarn-incomplete-record-updates
-    -fno-warn-unticked-promoted-constructors
+    -Wtabs
+    -Wincomplete-uni-patterns
+    -Wincomplete-record-updates
+    -Wno-unticked-promoted-constructors
 
   if impl(ghc >= 8.0)
     ghc-options: -Wcompat -Wnoncanonical-monad-instances

diff --git a/Cabal-syntax/src/Distribution/PackageDescription/Configuration.hs b/Cabal-syntax/src/Distribution/PackageDescription/Configuration.hs
@@ -1,5 +1,5 @@
--- -fno-warn-deprecations for use of Map.foldWithKey
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+-- -Wno-deprecations for use of Map.foldWithKey
+{-# OPTIONS_GHC -Wno-deprecations #-}
 
 -----------------------------------------------------------------------------
 

diff --git a/Cabal-tests/tests/HackageTests.hs b/Cabal-tests/tests/HackageTests.hs
@@ -3,7 +3,7 @@
 {-# LANGUAGE Rank2Types          #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 #if !MIN_VERSION_deepseq(1,4,0)
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 #endif
 
 module Main where

diff --git a/Cabal-tests/tests/Test/Laws.hs b/Cabal-tests/tests/Test/Laws.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-missing-signatures #-}
+{-# OPTIONS_GHC -Wno-missing-signatures #-}
 module Test.Laws where
 
 import Prelude hiding (Num((+), (*)))

diff --git a/Cabal-tests/tests/UnitTests/Distribution/CabalSpecVersion.hs b/Cabal-tests/tests/UnitTests/Distribution/CabalSpecVersion.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 module UnitTests.Distribution.CabalSpecVersion (tests) where
 
 import Distribution.Compat.Prelude.Internal

diff --git a/Cabal-tests/tests/UnitTests/Distribution/Compat/Graph.hs b/Cabal-tests/tests/UnitTests/Distribution/Compat/Graph.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE PatternGuards #-}
 {-# LANGUAGE FlexibleInstances #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module UnitTests.Distribution.Compat.Graph
     ( tests
     , arbitraryGraph

diff --git a/Cabal-tests/tests/UnitTests/Distribution/Described.hs b/Cabal-tests/tests/UnitTests/Distribution/Described.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE OverloadedStrings   #-}
 {-# LANGUAGE ScopedTypeVariables #-}
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 module UnitTests.Distribution.Described where
 
 import Distribution.Compat.Prelude.Internal

diff --git a/Cabal-tests/tests/UnitTests/Distribution/SPDX.hs b/Cabal-tests/tests/UnitTests/Distribution/SPDX.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 module UnitTests.Distribution.SPDX (spdxTests) where
 
 import Distribution.Compat.Prelude.Internal

diff --git a/Cabal-tests/tests/UnitTests/Distribution/System.hs b/Cabal-tests/tests/UnitTests/Distribution/System.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module UnitTests.Distribution.System
     ( tests
     ) where

diff --git a/Cabal-tests/tests/UnitTests/Distribution/Types/GenericPackageDescription.hs b/Cabal-tests/tests/UnitTests/Distribution/Types/GenericPackageDescription.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-deprecations #-}   -- for importing "Distribution.Compat.Prelude.Internal"
+{-# OPTIONS_GHC -Wno-deprecations #-}   -- for importing "Distribution.Compat.Prelude.Internal"
 
 module UnitTests.Distribution.Types.GenericPackageDescription where
 

diff --git a/Cabal-tests/tests/UnitTests/Distribution/Utils/Generic.hs b/Cabal-tests/tests/UnitTests/Distribution/Utils/Generic.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 
 -- to suppress WARNING in "Distribution.Compat.Prelude.Internal"
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 
 module UnitTests.Distribution.Utils.Generic ( tests ) where
 

diff --git a/Cabal-tests/tests/UnitTests/Distribution/Utils/NubList.hs b/Cabal-tests/tests/UnitTests/Distribution/Utils/NubList.hs
@@ -1,5 +1,5 @@
 -- to suppress WARNING in "Distribution.Compat.Prelude.Internal"
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 module UnitTests.Distribution.Utils.NubList
     ( tests
     ) where

diff --git a/Cabal-tests/tests/UnitTests/Distribution/Version.hs b/Cabal-tests/tests/UnitTests/Distribution/Version.hs
@@ -1,6 +1,6 @@
-{-# OPTIONS_GHC -fno-warn-incomplete-patterns
-                -fno-warn-deprecations
-                -fno-warn-unused-binds #-} --FIXME
+{-# OPTIONS_GHC -Wno-incomplete-patterns
+                -Wno-deprecations
+                -Wno-unused-binds #-} --FIXME
 module UnitTests.Distribution.Version (versionTests) where
 
 import Distribution.Compat.Prelude.Internal

diff --git a/Cabal-tree-diff/src/Data/TreeDiff/Instances/Cabal.hs b/Cabal-tree-diff/src/Data/TreeDiff/Instances/Cabal.hs
@@ -1,5 +1,5 @@
 {-# OPTIONS_GHC -freduction-depth=0 #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module Data.TreeDiff.Instances.Cabal () where
 
 import Data.TreeDiff

diff --git a/Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalLanguage.hs b/Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalLanguage.hs
@@ -1,5 +1,5 @@
 {-# OPTIONS_GHC -freduction-depth=0 #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module Data.TreeDiff.Instances.CabalLanguage () where
 
 import Data.TreeDiff

diff --git a/Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalSPDX.hs b/Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalSPDX.hs
@@ -1,5 +1,5 @@
 {-# OPTIONS_GHC -freduction-depth=0 #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module Data.TreeDiff.Instances.CabalSPDX () where
 
 import Data.TreeDiff

diff --git a/Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalVersion.hs b/Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalVersion.hs
@@ -1,5 +1,5 @@
 {-# OPTIONS_GHC -freduction-depth=0 #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 module Data.TreeDiff.Instances.CabalVersion where
 
 import Data.TreeDiff

diff --git a/Cabal/Cabal.cabal b/Cabal/Cabal.cabal
@@ -66,10 +66,10 @@ library
   ghc-options:
     -Wall
     -fno-ignore-asserts
-    -fwarn-tabs
-    -fwarn-incomplete-uni-patterns
-    -fwarn-incomplete-record-updates
-    -fno-warn-unticked-promoted-constructors
+    -Wtabs
+    -Wincomplete-uni-patterns
+    -Wincomplete-record-updates
+    -Wno-unticked-promoted-constructors
 
   if impl(ghc >= 8.0)
     ghc-options: -Wcompat -Wnoncanonical-monad-instances

diff --git a/Cabal/src/Distribution/Compat/FilePath.hs b/Cabal/src/Distribution/Compat/FilePath.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE CPP #-}
-{-# OPTIONS_GHC -fno-warn-unused-imports #-}
+{-# OPTIONS_GHC -Wno-unused-imports #-}
 
 module Distribution.Compat.FilePath
   ( isExtensionOf

diff --git a/Cabal/src/Distribution/Simple.hs b/Cabal/src/Distribution/Simple.hs
@@ -4,7 +4,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
-{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
 -----------------------------------------------------------------------------
 {-
 Work around this warning:
@@ -13,7 +12,8 @@ libraries/Cabal/Distribution/Simple.hs:78:0:
              (imported from Distribution.Simple.UserHooks):
              Deprecated: "Please use the new testing interface instead!"
 -}
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
+{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
 
 -- |
 -- Module      :  Distribution.Simple

diff --git a/Cabal/src/Distribution/Simple/Build/PackageInfoModule/Z.hs b/Cabal/src/Distribution/Simple/Build/PackageInfoModule/Z.hs
@@ -22,7 +22,7 @@ render z_root = execWriter $ do
       return ()
     else do
       return ()
-  tell "{-# OPTIONS_GHC -fno-warn-missing-import-lists #-}\n"
+  tell "{-# OPTIONS_GHC -Wno-missing-import-lists #-}\n"
   tell "{-# OPTIONS_GHC -w #-}\n"
   tell "module PackageInfo_"
   tell (zPackageName z_root)

diff --git a/Cabal/src/Distribution/Simple/Build/PathsModule/Z.hs b/Cabal/src/Distribution/Simple/Build/PathsModule/Z.hs
@@ -51,7 +51,7 @@ render z_root = execWriter $ do
     return ()
   else do
     return ()
-  tell "{-# OPTIONS_GHC -fno-warn-missing-import-lists #-}\n"
+  tell "{-# OPTIONS_GHC -Wno-missing-import-lists #-}\n"
   tell "{-# OPTIONS_GHC -w #-}\n"
   tell "module Paths_"
   tell (zManglePkgName z_root (zPackageName z_root))

diff --git a/Cabal/src/Distribution/Simple/ConfigureScript.hs b/Cabal/src/Distribution/Simple/ConfigureScript.hs
@@ -5,7 +5,7 @@
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 -----------------------------------------------------------------------------
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 
 -- |
 -- Module      :  Distribution.Simple.ConfigureScript

diff --git a/cabal-benchmarks/bench/CabalBenchmarks.hs b/cabal-benchmarks/bench/CabalBenchmarks.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 module Main where
 
 import Test.Tasty.Bench                       (bench, bgroup, defaultMain, env, nf, whnf)

diff --git a/cabal-benchmarks/cabal-benchmarks.cabal b/cabal-benchmarks/cabal-benchmarks.cabal
@@ -26,7 +26,7 @@ test-suite cabal-benchmarks
   type:             exitcode-stdio-1.0
   main-is:          CabalBenchmarks.hs
   hs-source-dirs:   bench
-  ghc-options:      -threaded -Wall -fwarn-tabs
+  ghc-options:      -threaded -Wall -Wtabs
   build-depends:
       base
     , bytestring

diff --git a/cabal-install-solver/cabal-install-solver.cabal b/cabal-install-solver/cabal-install-solver.cabal
@@ -38,7 +38,7 @@ library
   hs-source-dirs:   src-assertion
   ghc-options:
     -Wall -Wcompat -Wnoncanonical-monad-instances
-    -fwarn-tabs -fwarn-incomplete-uni-patterns
+    -Wtabs -Wincomplete-uni-patterns
 
   if impl(ghc < 8.8)
     ghc-options: -Wnoncanonical-monadfail-instances

diff --git a/cabal-install-solver/src/Distribution/Solver/Compat/Prelude.hs b/cabal-install-solver/src/Distribution/Solver/Compat/Prelude.hs
@@ -1,5 +1,5 @@
 -- to suppress WARNING in "Distribution.Compat.Prelude.Internal"
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 
 -- | This module does two things:
 --

diff --git a/cabal-install-solver/src/Distribution/Solver/Modular/Linking.hs b/cabal-install-solver/src/Distribution/Solver/Modular/Linking.hs
@@ -2,7 +2,7 @@
 {-# LANGUAGE MultiParamTypeClasses #-}
 
 -- TODO: remove this
-{-# OPTIONS -fno-warn-incomplete-uni-patterns #-}
+{-# OPTIONS -Wno-incomplete-uni-patterns #-}
 module Distribution.Solver.Modular.Linking (
     validateLinking
   ) where

diff --git a/cabal-install-solver/src/Distribution/Solver/Modular/Solver.hs b/cabal-install-solver/src/Distribution/Solver/Modular/Solver.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE CPP #-}
 #ifdef DEBUG_TRACETREE
 {-# LANGUAGE FlexibleInstances #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 #endif
 module Distribution.Solver.Modular.Solver
     ( SolverConfig(..)

diff --git a/cabal-install/src/Distribution/Client/BuildReports/Storage.hs b/cabal-install/src/Distribution/Client/BuildReports/Storage.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-incomplete-uni-patterns #-}
+{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
 
 -----------------------------------------------------------------------------
 

diff --git a/cabal-install/src/Distribution/Client/Compat/Orphans.hs b/cabal-install/src/Distribution/Client/Compat/Orphans.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE BangPatterns #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Distribution.Client.Compat.Orphans () where
 

diff --git a/cabal-install/src/Distribution/Client/Compat/Prelude.hs b/cabal-install/src/Distribution/Client/Compat/Prelude.hs
@@ -1,5 +1,5 @@
 -- to suppress WARNING in "Distribution.Compat.Prelude.Internal"
-{-# OPTIONS_GHC -fno-warn-deprecations #-}
+{-# OPTIONS_GHC -Wno-deprecations #-}
 
 -- | This module does two things:
 --

diff --git a/cabal-install/src/Distribution/Client/Compat/Tar.hs b/cabal-install/src/Distribution/Client/Compat/Tar.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE CPP #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 {- FOURMOLU_DISABLE -}
 module Distribution.Client.Compat.Tar

diff --git a/cabal-install/src/Distribution/Client/Errors.hs b/cabal-install/src/Distribution/Client/Errors.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE ConstraintKinds #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE InstanceSigs #-}
-{-# OPTIONS_GHC -fno-warn-incomplete-uni-patterns #-}
+{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
 
 -----------------------------------------------------------------------------
 

diff --git a/cabal-install/src/Distribution/Client/FileMonitor.hs b/cabal-install/src/Distribution/Client/FileMonitor.hs
@@ -4,7 +4,7 @@
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE NamedFieldPuns #-}
 {-# LANGUAGE ScopedTypeVariables #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 -- | An abstraction to help with re-running actions when files or other
 -- input values they depend on have changed.

diff --git a/cabal-install/src/Distribution/Client/Tar.hs b/cabal-install/src/Distribution/Client/Tar.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 -----------------------------------------------------------------------------
 

diff --git a/cabal-install/src/Distribution/Client/TargetSelector.hs b/cabal-install/src/Distribution/Client/TargetSelector.hs
@@ -4,7 +4,7 @@
 {-# LANGUAGE RecordWildCards #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 -- TODO
-{-# OPTIONS_GHC -fno-warn-incomplete-uni-patterns #-}
+{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
 
 -----------------------------------------------------------------------------
 

diff --git a/cabal-install/tests/IntegrationTests2.hs b/cabal-install/tests/IntegrationTests2.hs
@@ -3,7 +3,7 @@
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 -- For the handy instance IsString PackageIdentifier
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Main where
 

diff --git a/cabal-install/tests/UnitTests/Distribution/Client/ArbitraryInstances.hs b/cabal-install/tests/UnitTests/Distribution/Client/ArbitraryInstances.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE GADTs #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module UnitTests.Distribution.Client.ArbitraryInstances
   ( adjustSize

diff --git a/cabal-install/tests/UnitTests/Distribution/Client/DescribedInstances.hs b/cabal-install/tests/UnitTests/Distribution/Client/DescribedInstances.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module UnitTests.Distribution.Client.DescribedInstances where
 

diff --git a/cabal-install/tests/UnitTests/Distribution/Client/Glob.hs b/cabal-install/tests/UnitTests/Distribution/Client/Glob.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module UnitTests.Distribution.Client.Glob (tests) where
 

diff --git a/cabal-install/tests/UnitTests/Distribution/Client/ProjectConfig.hs b/cabal-install/tests/UnitTests/Distribution/Client/ProjectConfig.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE RecordWildCards #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 -- simplifier goes nuts otherwise
 #if __GLASGOW_HASKELL__ < 806

diff --git a/cabal-install/tests/UnitTests/Distribution/Client/TreeDiffInstances.hs b/cabal-install/tests/UnitTests/Distribution/Client/TreeDiffInstances.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE UndecidableInstances #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module UnitTests.Distribution.Client.TreeDiffInstances () where
 

diff --git a/cabal-install/tests/UnitTests/Distribution/Solver/Modular/QuickCheck.hs b/cabal-install/tests/UnitTests/Distribution/Solver/Modular/QuickCheck.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE StandaloneDeriving #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module UnitTests.Distribution.Solver.Modular.QuickCheck (tests) where
 

diff --git a/cabal-install/tests/UnitTests/Distribution/Solver/Modular/RetryLog.hs b/cabal-install/tests/UnitTests/Distribution/Solver/Modular/RetryLog.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE StandaloneDeriving #-}
-{-# OPTIONS_GHC -fno-warn-orphans #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module UnitTests.Distribution.Solver.Modular.RetryLog
   ( tests

diff --git a/cabal-testsuite/cabal-testsuite.cabal b/cabal-testsuite/cabal-testsuite.cabal
@@ -32,9 +32,9 @@ common shared
 
   ghc-options:
     -Wall
-    -fwarn-tabs
-    -fwarn-incomplete-uni-patterns
-    -fno-warn-unticked-promoted-constructors
+    -Wtabs
+    -Wincomplete-uni-patterns
+    -Wno-unticked-promoted-constructors
 
 
 library