Resolving dependencies... Configuring cereal-0.5.4.0... Configuring extensible-exceptions-0.1.1.4... Building extensible-exceptions-0.1.1.4... Building cereal-0.5.4.0... Installed extensible-exceptions-0.1.1.4 Installed cereal-0.5.4.0 Configuring haskell-mpi-1.4.0... Building haskell-mpi-1.4.0... Failed to install haskell-mpi-1.4.0 Build log ( /home/builder/.cabal/logs/haskell-mpi-1.4.0.log ): cabal: Entering directory '/tmp/cabal-tmp-7238/haskell-mpi-1.4.0' Configuring haskell-mpi-1.4.0... Building haskell-mpi-1.4.0... Preprocessing library haskell-mpi-1.4.0... dist/build/Control/Parallel/MPI/Internal.chs.h:2:17: fatal error: mpi.h: No such file or directory #include ^ compilation terminated. c2hs: Error during preprocessing custom header file cabal: Leaving directory '/tmp/cabal-tmp-7238/haskell-mpi-1.4.0' cabal: Error: some packages failed to install: haskell-mpi-1.4.0 failed during the building phase. The exception was: ExitFailure 1