I've been trying to get the example in
working.
I have a cabal file
name: test-via-c
version: 0.1.0.0
homepage: TBD
license: MIT
author: Dominic Steinitz
category: System
build-type: Simple
cabal-version: >=1.10
executable Foo.dylib
main-is: Foo.hs
other-extensions: ForeignFunctionInterface
build-depends: base >=4.7 && <4.10,
primitive >=0.6 && <0.7
hs-source-dirs: src
default-language: Haskell2010
include-dirs: src
ghc-options: -O2 -shared -fPIC -dynamic
extra-libraries: HSrts-ghc8.0.1
which installs
/Users/dom/Library/Haskell/ghc-8.0.1/lib/test-via-c-0.1.0.0/bin/Foo.dylib
I then compile the C with
gcc-6 Bar.c
/Users/dom/Library/Haskell/ghc-8.0.1/lib/test-via-c-0.1.0.0/bin/Foo.dylib
-I/Library/Frameworks/GHC.framework/Versions/8.0.1-x86_64/usr/lib/ghc-8.0.1/include
-L/Library/Frameworks/GHC.framework/Versions/8.0.1-x86_64/usr/lib/ghc-8.0.1/rts
-lHSrts-ghc8.0.1
Sadly when I try to run the executable I get
~/Dropbox/Private/TestU01-1.2.3/examples/src $ ./a.out
dyld: Library not loaded: @rpath/Foo.dylib
Referenced from: /Users/dom/Dropbox/Private/TestU01-1.2.3/examples/src/./a.out
Reason: image not found
Trace/BPT trap: 5
I am guessing the executable is looking for the dynamic library. I
copied Foo.dylib to the current directory but still get the same
error.
I know this is really an OS X question but I am hoping someone who has
done before will be able to help.