Restore compatibility with retry-0.6 (commercialhaskell/stackage#975)

Author: borsboom

src/Network/HTTP/Download/Verified.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP                   #-}
 {-# LANGUAGE DeriveDataTypeable    #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE OverloadedStrings     #-}
@@ -201,7 +202,11 @@ verifiedDownload DownloadRequest{..} destpath progressSink = do
     liftIO $ whenM' getShouldDownload $ do
         createDirectoryIfMissing True dir
         withBinaryFile fptmp WriteMode $ \h ->
+#if MIN_VERSION_retry(0,7,0)
             recovering drRetryPolicy handlers $ const $
+#else
+            recovering drRetryPolicy handlers $
+#endif
                 flip runReaderT env $
                     withResponse req (go h)
         renameFile fptmp fp

stack.cabal

@@ -173,7 +173,7 @@ library
                    , pretty
                    , process >= 1.2.0.0
                    , resourcet >= 1.1.4.1
-                   , retry >= 0.7
+                   , retry >= 0.6 && < 0.8
                    , safe >= 0.3
                    , semigroups >= 0.5
                    , split
@@ -280,7 +280,7 @@ test-suite stack-test
                 , optparse-applicative
                 , bytestring
                 , QuickCheck
-                , retry >= 0.7
+                , retry >= 0.6 && < 0.8
   default-language:    Haskell2010
 
 test-suite stack-integration-test

stack.yaml

@@ -1,7 +1,6 @@
 resolver: lts-3.7
 extra-deps:
 - binary-tagged-0.1.1.0
-- retry-0.7.0.1
 image:
   container:
     base: "fpco/ubuntu-with-libgmp:14.04"