Better

chaselev-deque/Data/Concurrent/Deque/ChaseLev.hs

@@ -30,7 +30,6 @@ import qualified Data.Concurrent.Deque.Class as PC
 -- import Data.Vector
 import Control.Monad.Primitive
 import Data.Primitive.Array
-import Data.Primitive.UnliftedArray (PrimUnlifted (..))
 import Data.Primitive.MutVar
 import Text.Printf (printf)
 import Control.Exception (catch, SomeException, throw, evaluate,try)

chaselev-deque/chaselev-deque.cabal

@@ -47,7 +47,7 @@ Library
 
   build-depends:     base >= 4.4.0.0 && < 5, array, transformers, 
                      abstract-deque >= 0.3 && < 0.4, vector, ghc-prim,
-                     atomic-primops >= 0.5.0.2, primitive
+                     atomic-primops >= 0.5.0.2, primitive >= 0.6.2.0
 -- This was for reactordeque:
 --		     bits-atomic,
   build-depends: ghc-prim
@@ -65,7 +65,7 @@ Test-Suite test-chaselev-deque
     build-depends: base >= 4.4.0.0 && < 5, 
                    abstract-deque >= 0.3 && < 0.4, abstract-deque-tests >= 0.3,
                    HUnit, test-framework, test-framework-hunit,
-                   atomic-primops >= 0.5.0.2, vector, ghc-prim, array, primitive
+                   atomic-primops >= 0.5.0.2, vector, ghc-prim, array, primitive >= 0.6.2.0
     build-depends: containers
     ghc-options: -O2 -threaded 
     ghc-options: -rtsopts -with-rtsopts=-N4

stack.yaml

@@ -11,4 +11,4 @@ packages:
   - mega-deque/
 extra-deps:
   - bits-atomic-0.1.3
-resolver: lts-2.22
+resolver: lts-12.2