Resolving dependencies...
Downloading DSTM-0.1...
Configuring DSTM-0.1...
Building DSTM-0.1...
Preprocessing library DSTM-0.1...

Control/Distributed/STM/DSTM.hs:25:8:
    Ambiguous module name `Prelude':
      it was found in multiple packages: base haskell98-2.0.0.2
Failed to install DSTM-0.1
cabal: Error: some packages failed to install:
DSTM-0.1 failed during the building phase. The exception was:
ExitFailure 1