Resolving dependencies...
Downloading swf-1.0...
Configuring swf-1.0...
Building swf-1.0...
Preprocessing library swf-1.0...

Swf/Bin.hs:1:12: Warning:
    -fglasgow-exts is deprecated: Use individual extensions instead
[1 of 5] Compiling Swf.Assembly     ( Swf/Assembly.hs, dist/build/Swf/Assembly.o )
[2 of 5] Compiling Swf.Bin          ( Swf/Bin.hs, dist/build/Swf/Bin.o )

Swf/Bin.hs:63:69:
    Could not deduce (Num a) arising from the literal `0'
    from the context (Ord a, Bits a)
      bound by the type signature for
                 nuBits :: (Ord a, Bits a) => a -> Word8
      at Swf/Bin.hs:62:11-39
    Possible fix:
      add (Num a) to the context of
        the type signature for nuBits :: (Ord a, Bits a) => a -> Word8
    In the second argument of `(>)', namely `0'
    In the expression: n `shiftR` y > 0
    In a stmt of a list comprehension: n `shiftR` y > 0

Swf/Bin.hs:67:12:
    Could not deduce (Num a) arising from the literal `0'
    from the context (Ord a, Bits a)
      bound by the type signature for
                 nsBits :: (Ord a, Bits a) => a -> Word8
      at Swf/Bin.hs:65:11-39
    Possible fix:
      add (Num a) to the context of
        the type signature for nsBits :: (Ord a, Bits a) => a -> Word8
    In the second argument of `(>)', namely `0'
    In the expression: n > 0
    In a stmt of a pattern guard for
                   an equation for `nsBits':
      n > 0
Failed to install swf-1.0
cabal: Error: some packages failed to install:
swf-1.0 failed during the building phase. The exception was:
ExitFailure 1