Resolving dependencies...
Configuring integer-pure-1.0...
Building integer-pure-1.0...
Preprocessing library integer-pure-1.0...

Data/Integer.hs:18:18:
    Could not find module ‘Prelude’
    It is a member of the hidden package ‘base-4.8.1.0’.
    Perhaps you need to add ‘base’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.

Data/Integer.hs:19:18:
    Could not find module ‘Data.Char’
    It is a member of the hidden package ‘base-4.8.1.0’.
    Perhaps you need to add ‘base’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.

Data/Integer.hs:21:18:
    Could not find module ‘Data.Maybe’
    It is a member of the hidden package ‘base-4.8.1.0’.
    Perhaps you need to add ‘base’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.

Data/Integer.hs:22:18:
    Could not find module ‘Data.Ratio’
    It is a member of the hidden package ‘base-4.8.1.0’.
    Perhaps you need to add ‘base’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
Failed to install integer-pure-1.0
cabal: Error: some packages failed to install:
integer-pure-1.0 failed during the building phase. The exception was:
ExitFailure 1