Linking to Haskell code from an external program

Simon Marlow marlowsd at
Tue Nov 25 03:43:36 EST 2008

Colin Paul Adams wrote:
>>>>>> "Simon" == Simon Marlow <marlowsd at> writes:
>     Simon> Colin Paul Adams wrote:
>     >>>>>>> "Simon" == Simon Peyton-Jones <simonpj at>
>     >>>>>>> writes:
>     >> 
>     Simon> It looks as if you are somehow failing to link your binary
>     Simon> with package 'base'. (Are you using 'ghc' as your linker;
>     Simon> you should be.)  But others are better than I at this kind
>     Simon> of stuff.
>     >> 
>     >> I have base- specified.
>     >> 
>     >> No, I am not using ghc as the linker. Since I am calling the
>     >> Haskell routine from an Eiffel program, I don't see how I could
>     >> do that with any sort of ease.
>     Simon> I think you'll have to post complete instructions to
>     Simon> reproduce the problem you're having; it's hard to piece it
>     Simon> together from the information you've given.  The problem
>     Simon> will be in the details somewhere.
> It seems it was some complication when switching from 6.8 to 6.10. I
> didn't clean up properly.
> Links now, but I'm still getting the crash in the garbage collector. :-(

Perhaps try reducing the example until the problem goes away, so we can see 
at which stage it gets introduced?  Or can you boil down your example to 
something we can reproduce?


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