GHC-8.8.1 is pickier about unneeded imports

Author: phadej

generics-sop/src/Generics/SOP/Type/Metadata.hs

@@ -33,7 +33,9 @@ module Generics.SOP.Type.Metadata
   , Associativity(..)
   ) where
 
+#if __GLASGOW_HASKELL__ <802
 import Data.Kind (Type)
+#endif
 import Data.Proxy (Proxy (..))
 import GHC.Generics
   ( Associativity(..)

sop-core/src/Data/SOP/BasicFunctors.hs

@@ -43,7 +43,9 @@ module Data.SOP.BasicFunctors
   , mapKKK
   ) where
 
+#if !MIN_VERSION_base(4,11,0)
 import Data.Semigroup (Semigroup (..))
+#endif
 import Data.Kind (Type)
 import qualified GHC.Generics as GHC
 

sop-core/src/Data/SOP/NP.hs

@@ -91,7 +91,9 @@ import Data.Coerce
 import Data.Kind (Type)
 import Data.Proxy (Proxy(..))
 import Unsafe.Coerce
+#if !MIN_VERSION_base(4,11,0)
 import Data.Semigroup (Semigroup (..))
+#endif
 
 import Control.DeepSeq (NFData(..))