[Haskell-cafe] foreign libraries, dylibs, OS X Mavericks and GHC 7.8.3 woes

Alfredo Di Napoli alfredo.dinapoli at gmail.com
Wed Oct 15 06:19:09 UTC 2014

Hi Sean,

I suspected sandboxing was involved!
Thanks for the pointer :)


On Tuesday, 14 October 2014, Sean Leather <sean.leather at gmail.com> wrote:
> Hi Alfredo,
>> I will let this gist talk for me:
>> https://gist.github.com/adinapoli/d4c33a9d1ea85bcaebdf
>> 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
> [1]
> [2]
> Regards,
> Sean
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