Resolving dependencies...
Downloading open-union-0.1.0.1...
Configuring open-union-0.1.0.1...
Building open-union-0.1.0.1...
Preprocessing library open-union-0.1.0.1...
[1 of 2] Compiling Data.OpenUnion.Internal ( Data/OpenUnion/Internal.hs, dist/build/Data/OpenUnion/Internal.o )

Data/OpenUnion/Internal.hs:35:20: parse error on input `where'
Failed to install open-union-0.1.0.1
cabal: Error: some packages failed to install:
open-union-0.1.0.1 failed during the building phase. The exception was:
ExitFailure 1