[Haskell-cafe] Calling Haskell from other languages?

Don Stewart dons at galois.com
Fri Nov 14 03:06:10 EST 2008

> >>>>> "Colin" == Colin Paul Adams <colin at colina.demon.co.uk> writes:
>     Colin> And thanks everyone for your help. I have enough to go on
>     Colin> now.
> I followed the example at
> http://www.haskell.org/haskellwiki/Calling_Haskell_from_C
> (and renamed the files from A* to fib1*, as I want to pursue this
> further).
> But I get:
> fib1.o: In function `main':
> fib1.c:(.text+0x0): multiple definition of `main'
> fib1.o:fib1.c:(.text+0x0): first defined here
> fib1_stub.o: In function `stginit_export_Safe_zdffibonaccizuhszuaDN':
> fib1_stub.c:(.text+0x5): undefined reference to `Safe_zdffibonaccizuhszuaDN_closure'
> fib1_stub.o: In function `fibonacci_hs':
> fib1_stub.c:(.text+0x32): undefined reference to `Safe_zdffibonaccizuhszuaDN_closure'
> collect2: ld returned 1 exit status

Not linking in the 'Safe' module on the command line?

-- Don

More information about the Haskell-Cafe mailing list