Fix StarIsType deprecation warning (#248)

Author: dpwiz

sdl2.cabal

@@ -138,6 +138,9 @@ library
     build-depends:
       linear >= 1.10.1.2 && < 1.22
 
+  if impl(ghc >= 8.6)
+    default-extensions: NoStarIsType
+
   default-language:
     Haskell2010
 

src/SDL/Audio.hs

@@ -98,6 +98,12 @@ import Data.Foldable (Foldable)
 import Data.Traversable (Traversable)
 #endif
 
+#if MIN_VERSION_base(4,12,0)
+import Data.Kind (Type)
+#else
+# define Type *
+#endif
+
 {-
 
 $audioDevice
@@ -213,7 +219,7 @@ openAudioDevice OpenDeviceSpec{..} = liftIO $
   audioFormatStorable FloatingBEAudio = Dict
   audioFormatStorable FloatingNativeAudio = Dict
 
-data Dict :: Constraint -> * where
+data Dict :: Constraint -> Type where
   Dict :: c => Dict c
 
 -- |

src/SDL/Hint.hs

@@ -141,7 +141,7 @@ data VideoWinD3DCompilerOptions
 -- the 'HasSetter' interface is fairly relaxed - if a hint cannot be set, the
 -- failure will be silently discarded. For more feedback and control when setting
 -- hints, see 'setHintWithPriority'.
-data Hint :: * -> * where
+data Hint v where
   HintAccelerometerAsJoystick :: Hint AccelerometerJoystickOptions
   HintFramebufferAcceleration :: Hint FramebufferAccelerationOptions
   HintMacCTRLClick :: Hint MacCTRLClickOptions