[Haskell-cafe] Hint causes GHCi linker error under Windows

[Daniel Gorín]

Hi, Martin

Do you have a complete example one can use to reproduce this behavior?  
(preferably a short one! :P)

In any case, I'm resending your message to the glasgow-haskell-users  
list to see if a ghc guru recognize the error message. It is strange  
that the problem only manifests on Windows....

Daniel


On Dec 11, 2009, at 7:04 AM, Martin Hofmann wrote:

> The following hint code causes GHCi to crash under Windows:
>
>> runInterpreter $ loadModules ["SomeModule.hs"]
>
> The error message is:
>
> GHCi runtime linker: fatal error: I found a duplicate definition for
> symbol _hs_gtWord64 whilst processing object file
>   C:\Programme\Haskell Platform\2009.2.0.2\ghc-prim-0.1.0.0
> HSghc-prim-0.1.0.o
> This could be caused by:
>   * Loading two different object files which export the same symbol
>   * Specifying the same object file twice on the GHCi command line
>   * An incorrect `package.conf' entry, causing some object to be
>     loaded twice.
> GHCi cannot safely continue in this situation.  Exiting now.  Sorry.
>
> The problem does not occur under Unix or with a compiled program. IMHO
> hint tries to start a second instance of GHCi which is not
> allowed/possible under Windows. If this is the case a more telling  
> error
> message would be helpful.
>
> I used the Haskell Platform, version 2009.2.0.2 under Windows XP. My
> package.conf is:
>
> C:/Programme/Haskell Platform/2009.2.0.2\package.conf:
>    Cabal-1.6.0.3, GHood-0.0.3, GLUT-2.1.1.2, HTTP-4000.0.6,
>    HUnit-1.2.0.3, MonadCatchIO-mtl-0.2.0.0, OpenGL-2.2.1.1,
>    QuickCheck-1.2.0.0, Win32-2.2.0.0, ansi-terminal-0.5.0,
>    ansi-wl-pprint-0.5.1, array-0.2.0.0, base-3.0.3.1, base-4.1.0.0,
>    bimap-0.2.4, bytestring-0.9.1.4, cgi-3001.1.7.1,
>    containers-0.2.0.1, cpphs-1.9, directory-1.0.0.3, (dph-base-0.3),
>    (dph-par-0.3), (dph-prim-interface-0.3), (dph-prim-par-0.3),
>    (dph-prim-seq-0.3), (dph-seq-0.3), extensible-exceptions-0.1.1.0,
>    fgl-5.4.2.2, filepath-1.1.0.2, (ghc-6.10.4), ghc-mtl-1.0.1.0,
>    ghc-paths-0.1.0.6, ghc-prim-0.1.0.0, haddock-2.4.2,
>    haskeline-0.6.2.2, haskell-src-1.0.1.3, haskell-src-exts-1.3.4,
>    haskell98-1.0.1.0, hint-0.3.2.1, hpc-0.5.0.3, html-1.0.1.2,
>    integer-0.1.0.1, mtl-1.1.0.2, network-2.2.1.4, old-locale-1.0.0.1,
>    old-time-1.0.0.2, packedstring-0.1.0.1, parallel-1.1.0.1,
>    parsec-2.1.0.1, pointless-haskell-0.0.1, pretty-1.0.1.0,
>    process-1.0.1.1, random-1.0.0.1, regex-base-0.72.0.2,
>    regex-compat-0.71.0.1, regex-posix-0.72.0.3, rts-1.0, stm-2.1.1.2,
>    syb-0.1.0.1, template-haskell-2.3.0.1, time-1.1.2.4,
>    utf8-string-0.3.6, xhtml-3000.2.0.1, zlib-0.5.0.0
>
> Thanks,
>
> Martin
>
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