Hi Alfredo, I will let this gist talk for me:
1) Shed some light on my specific use case: Can I do better here? (aka have
GHC figure out automatically all the nitty gritty details)
You're installing into a cabal sandbox and compiling directly with ghc (not cabal), but ghc doesn't know anything about the sandbox. You need to point it to the package database with -package-db and tell it the package for linking with -package [2]. $ ghc -package-db .cabal-sandbox/x86_64-osx-ghc-7.8.3-packages.conf.d -package snappy HelloSnappy.hs Linking HelloSnappy ... $ ./HelloSnappy HelloSnappy: foo.jpg: openBinaryFile: does not exist (No such file or directory) [1] http://www.haskell.org/ghc/docs/latest/html/users_guide/packages.html#packag... [2] http://www.haskell.org/ghc/docs/latest/html/users_guide/options-phases.html#... Regards, Sean