diff --git a/Data/Concurrent/Queue/MichaelScott.hs b/Data/Concurrent/Queue/MichaelScott.hs
--- a/Data/Concurrent/Queue/MichaelScott.hs
+++ b/Data/Concurrent/Queue/MichaelScott.hs
@@ -31,6 +31,19 @@
 import qualified Data.Concurrent.Deque.Class as C
 import Data.Atomics (readForCAS, casIORef, Ticket, peekTicket)
 
+-- GHC 7.8 changed some primops
+#if MIN_VERSION_base(4,7,0)
+import GHC.Base  hiding ((==#))
+import GHC.Prim hiding ((==#))
+import qualified GHC.PrimopWrappers as GPW
+(==#) :: Int# -> Int# -> Bool
+(==#) x y = case x GPW.==# y of { 0# -> False; _ -> True }
+#else
+import GHC.Base
+import GHC.Prim
+#endif
+
+
 -- Considering using the Queue class definition:
 -- import Data.MQueue.Class
 
diff --git a/Test.hs b/Test.hs
--- a/Test.hs
+++ b/Test.hs
@@ -5,13 +5,27 @@
 module Main where
 import Test.Framework                     (defaultMain)
 import Test.Framework.Providers.HUnit     (hUnitTestToTests)
-import Data.Concurrent.Deque.Tests        (tests_fifo)
-import Data.Concurrent.Queue.MichaelScott (newQ)
-import System.Environment (withArgs)
-import Test.HUnit (Test(TestLabel))
+import Data.Concurrent.Deque.Tests        (tests_fifo, numElems, getNumAgents)
+import System.Environment (getArgs, withArgs)
+import Test.HUnit 
 
-main =
-  withArgs ["-j1","--jxml=test-results.xml"] $ 
-  defaultMain$ hUnitTestToTests$
-  TestLabel "MichaelScott" $
-  tests_fifo newQ
+-- import Data.Concurrent.Queue.MichaelScott (newQ)
+import Data.Concurrent.Queue.MichaelScott (LinkedQueue)
+import Data.Concurrent.Deque.Class        (newQ)
+import Data.Concurrent.Deque.Debugger
+
+main = do
+  numAgents <- getNumAgents
+  putStrLn$ "Running with numElems "++show numElems++" and numAgents "++ show numAgents
+  putStrLn "Use NUMELEMS and +RTS to control the size of this benchmark."
+  args <- getArgs
+  -- Don't allow concurent tests (the tests are concurrent!):
+  withArgs (args ++ ["-j1","--jxml=test-results.xml"]) $ 
+    defaultMain$ hUnitTestToTests$
+    TestList
+    [ TestLabel "MichaelScott" $ tests_fifo (newQ :: IO (LinkedQueue a))
+    , TestLabel "MichaelScott(DbgWrapper)" $
+        tests_fifo (newQ :: IO (DebugDeque LinkedQueue a))
+    ]
+
+  
diff --git a/lockfree-queue.cabal b/lockfree-queue.cabal
--- a/lockfree-queue.cabal
+++ b/lockfree-queue.cabal
@@ -1,5 +1,5 @@
 Name:                lockfree-queue
-Version:             0.2.0.2
+Version:             0.2.3
 License:             BSD3
 License-file:        LICENSE
 Author:              Ryan R. Newton
@@ -8,13 +8,15 @@
 Build-type:          Simple
 Cabal-version:       >=1.8
 
-Homepage: https://github.com/rrnewton/haskell-lockfree-queue/wiki
+Homepage: https://github.com/rrnewton/haskell-lockfree/wiki
+Bug-Reports: https://github.com/rrnewton/haskell-lockfree/issues
 
 -- Version History:
 -- 0.1 -- initial version
 -- 0.2 -- switched to MutVar 
 -- 0.2.0.1 -- use ticketed CAS internally; add support for -prof mode
 -- 0.2.0.2 -- minor: fix for upstream change
+-- 0.2.3   -- bump for upstream change
 
 Synopsis: Michael and Scott lock-free queues.
 
@@ -36,29 +38,29 @@
   exposed-modules:   Data.Concurrent.Queue.MichaelScott,
                      Data.Concurrent.Queue.MichaelScott.DequeInstance
   build-depends:     base >= 4.4.0.0 && < 5,
-                     ghc-prim, IORefCAS >= 0.2, abstract-deque, bytestring,
-                     atomic-primops
+                     ghc-prim, abstract-deque >= 0.3, bytestring,
+                     atomic-primops >= 0.6
   -- Build failure on GHC 7.2:
   --                     queuelike
   ghc-options: -O2
 
 Source-Repository head
     Type:         git
-    Location:     git://github.com/rrnewton/haskell-lockfree-queue.git
+    Location:     git://github.com/rrnewton/haskell-lockfree.git
 
 
 Test-Suite test-lockfree-queue
     type:       exitcode-stdio-1.0
     main-is:    Test.hs
-    build-depends: base >= 4.4.0.0 && < 5, IORefCAS >= 0.2, abstract-deque, bytestring,
+    build-depends: base >= 4.4.0.0 && < 5, bytestring, 
+                   abstract-deque >= 0.3, abstract-deque-tests >= 0.3, 
                    HUnit, test-framework, test-framework-hunit,
-                   ghc-prim, atomic-primops
+                   ghc-prim, atomic-primops >= 0.6
 
     ghc-options: -O2 -threaded -rtsopts 
     -- Debugging generated code:
-    ghc-options: -keep-tmp-files -dsuppress-module-prefixes -ddump-to-file -ddump-core-stats -ddump-simpl-stats -dcore-lint -dcmm-lint
-    ghc-options: -ddump-ds -ddump-simpl -ddump-stg -ddump-asm -ddump-bcos -ddump-cmm -ddump-opt-cmm -ddump-inlinings
-
+    -- ghc-options: -keep-tmp-files -dsuppress-module-prefixes -ddump-to-file -ddump-core-stats -ddump-simpl-stats -dcore-lint -dcmm-lint
+    -- ghc-options: -ddump-ds -ddump-simpl -ddump-stg -ddump-asm -ddump-bcos -ddump-cmm -ddump-opt-cmm -ddump-inlinings
 
 
 -- Executable benchmark-lockfree-queue