[xmonad] Issue 563 in xmonad: xmonad-contrib build fails on MultiToggle.hs

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Status: New
Owner: ----

New issue 563 by Ian... at gmail.com: xmonad-contrib build fails on  
MultiToggle.hs
http://code.google.com/p/xmonad/issues/detail?id=563

What steps will reproduce the problem?
1.cabal install --gobal xmonad-contrib

[ 10 of 226] Compiling XMonad.Layout.MultiToggle (  
XMonad/Layout/MultiToggle.hs, dist/build/XMonad/Layout/MultiToggle.o )

XMonad/Layout/MultiToggle.hs:162:9:
     Could not deduce (HList b w0)
       arising from the ambiguity check for '??'
     from the context (HList b w)
       bound by the type signature for
                  (??) :: HList b w => a -> b -> HCons a b
       at XMonad/Layout/MultiToggle.hs:162:9-42
     The type variable 'w0' is ambiguous
     In the ambiguity check for:
       forall a b w. HList b w => a -> b -> HCons a b
     To defer the ambiguity check to use sites, enable AllowAmbiguousTypes
     In the type signature for '??':
       (??) :: HList b w => a -> b -> HCons a b
Failed to install xmonad-contrib-0.11.2
cabal: Error: some packages failed to install:
xmonad-contrib-0.11.2 failed during the building phase. The exception was:
ExitFailure 1


What version of the product are you using? On what operating system?
Ubuntu 13.10
ghc 7.7.20131127
xmonad-contrib-0.11.2




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