Resolving dependencies...
Downloading proteaaudio-0.6.4...
Configuring proteaaudio-0.6.4...
cabal: The program 'c2hs' is required but it could not be found.
Failed to install proteaaudio-0.6.4
cabal: Error: some packages failed to install:
proteaaudio-0.6.4 failed during the configure step. The exception was:
ExitFailure 1