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+What steps will reproduce the problem?
+
+* Start with Ubuntu 12.04
+* sudo apt-get install haskell-platform libgsasl7-dev gsasl g2hs
+* cabal install git-annex --bindir=$HOME/bin
+
+What is the expected output? What do you see instead?
+
+Expected omething like "installation successful"
+
+Actual output, after build notices:
+
+
+Loading package IfElse-0.85 ... linking ... done.
+Loading object (static) dist/build/git-annex/git-annex-tmp/Utility/libdiskfree.o ... done
+Loading object (static) dist/build/git-annex/git-annex-tmp/Utility/libmounts.o ... done
+final link ... done
+[157 of 279] Compiling Assistant.Types.DaemonStatus ( Assistant/Types/DaemonStatus.hs, dist/build/git-annex/git-annex-tmp/Assistant/Types/DaemonStatus.o )
+[158 of 279] Compiling Assistant.Monad  ( Assistant/Monad.hs, dist/build/git-annex/git-annex-tmp/Assistant/Monad.o )
+
+Assistant/Monad.hs:86:16:
+    Couldn't match expected type `Assistant a'
+                with actual type `Reader AssistantData a'
+    Expected type: (AssistantData -> a) -> Assistant a
+      Actual type: (AssistantData -> a) -> Reader AssistantData a
+    In the expression: reader
+    In an equation for `getAssistant': getAssistant = reader
+
+Assistant/Monad.hs:93:15:
+    Couldn't match expected type `Assistant t0'
+                with actual type `Reader r0 a0'
+    In the return type of a call of `reader'
+    In a stmt of a 'do' block: st <- reader threadState
+    In the expression:
+      do { st <- reader threadState;
+           liftIO $ runThreadState st a }
+
+Assistant/Monad.hs:99:14:
+    Couldn't match expected type `Assistant t0'
+                with actual type `Reader r0 a0'
+    In the return type of a call of `reader'
+    In a stmt of a 'do' block: d <- reader id
+    In the expression:
+      do { d <- reader id;
+           liftIO $ io $ runAssistant d a }
+
+Assistant/Monad.hs:105:14:
+    Couldn't match expected type `Assistant t0'
+                with actual type `Reader r0 a0'
+    In the return type of a call of `reader'
+    In a stmt of a 'do' block: d <- reader id
+    In the expression:
+      do { d <- reader id;
+           return $ runAssistant d a }
+
+Assistant/Monad.hs:110:14:
+    Couldn't match expected type `Assistant t0'
+                with actual type `Reader r0 a0'
+    In the return type of a call of `reader'
+    In a stmt of a 'do' block: d <- reader id
+    In the expression:
+      do { d <- reader id;
+           return $ \ v -> runAssistant d $ a v }
+
+Assistant/Monad.hs:115:14:
+    Couldn't match expected type `Assistant t0'
+                with actual type `Reader r0 a0'
+    In the return type of a call of `reader'
+    In a stmt of a 'do' block: d <- reader id
+    In the expression:
+      do { d <- reader id;
+           return $ \ v1 v2 -> runAssistant d (a v1 v2) }
+
+Assistant/Monad.hs:120:12:
+    Couldn't match expected type `Assistant a0'
+                with actual type `Reader r0 a1'
+    In the return type of a call of `reader'
+    In the first argument of `(>>=)', namely `reader v'
+    In the expression: reader v >>= liftIO . io
+cabal: Error: some packages failed to install:
+git-annex-3.20121112 failed during the building phase. The exception was:
+ExitFailure 1
+
+
+What version of git-annex are you using? On what operating system?
+
+git annex 3.20121112
+Ubuntu 12.04 (current "long term support", all packages up to date)
+
+Please provide any additional information below.
+
+No idea how important this is for git-annex in general but reporting in case it is. Thank you for working on git annex!