#9348: "Symbol not found" when using a shared library -----------------------------------+----------------------------------- Reporter: alex.davis | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: Component: Runtime System | Version: 7.8.3 Keywords: | Differential Revisions: Operating System: MacOS X | Architecture: x86 Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -----------------------------------+----------------------------------- I'm trying to make a shared library from a simple program. It works fine on my Windows box, but gives an error on Mac OS X. Furthermore, the error seems to be generated from one of GHC's shared libraries. What happens is this. I compile my shared library with GHC, which works fine. But when I try to use it from another program (specifically, R), I get an error message containing the following: Symbol not found: _stg_IND_STATIC_info Referenced from: /usr/local/lib/ghc-7.8.3/ghc-prim-0.3.1.0/libHSghc- prim-0.3.1.0-ghc7.8.3.dylib Expected in: flat namespace in /usr/local/lib/ghc-7.8.3/ghc-prim-0.3.1.0/libHSghc- prim-0.3.1.0-ghc7.8.3.dylib More details: The program I'm trying to use is R. In R, you load a shared library with the command "dyn.load". When I try this, the command I use is "dyn.load('final.dylib')", and the full error message is what follows: --- Error in dyn.load("final.dylib") : unable to load shared object '/Users/alexanderdavis/Desktop/illustrate bug copy/final.dylib': dlopen(/Users/alexanderdavis/Desktop/illustrate bug copy/final.dylib, 6): Symbol not found: _stg_IND_STATIC_info Referenced from: /usr/local/lib/ghc-7.8.3/ghc-prim-0.3.1.0/libHSghc- prim-0.3.1.0-ghc7.8.3.dylib Expected in: flat namespace in /usr/local/lib/ghc-7.8.3/ghc-prim-0.3.1.0/libHSghc- prim-0.3.1.0-ghc7.8.3.dylib --- As I said, I have done all of this with no trouble on Windows. I compiled into a DLL, loaded the program into R, and was able to use the functions in it. My Mac OS version is 10.9.4. My R version is 3.0.2. When loaded, it displays "Platform: x86_64-apple- darwin10.8.0 (64-bit)", but Sys.getev("R_ARCH") returns the empty string. Command used for compiler: ghc --make -dynamic -fPIC -shared SumRoots.hs StartEnd.c -o final.dylib The code is attached. It is from a blog post by Neil Mitchelll (author of HLint) about calling Haskell from R: http://neilmitchell.blogspot.com/2011/10/calling-haskell-from-r.html -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9348 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler