ghc 6.8.1 windows link issue ?

[Simon Marlow]

Fernand wrote:
> Fernand a écrit :
>> Dear all,
>>
>> Giving a try to GHC 6.8.1 under Windows, I stumble upon the following 
>> issue (yes, I'm struggling with HDirect), which did not occur with the 
>> 6.6 version : the linking phase of my project fails with
> Actually, the issue appears with the following program :
> 
>  > module Oops where
>  > import Data.Graph
>  >
>  > ds_groups :: [SCC String]
>  > ds_groups  = stronglyConnComp ([] :: [(String, Int, [Int])])
>  >
>  > main = do
>  >  putStrLn "Oops!"
>  >  return ()
> 
> $ C:/ghc/ghc-6.8.1/bin/ghc.exe -main-is Oops Oops.hs -o oops.exe
> Oops.o(.text+0x46):fake: undefined reference to 
> `containerszm0zi1zi0zi0_DataziGraph_stronglyConnComp_closure'
> Oops.o(.text+0x2db):fake: undefined reference to 
> `__stginit_containerszm0zi1zi0zi0_DataziGraph_'
> Oops.o(.data+0x0):fake: undefined reference to 
> `containerszm0zi1zi0zi0_DataziGraph_stronglyConnComp_closure'
> collect2: ld returned 1 exit status
> 
> Compiling that same program with GHC-6.6 (same command line) works fine.
> 
> Do I need to submit a bug or did something changed in the librairies' 
> structure that I missed somewhere ?

You haven't told GHC that you want to link the containers package.  Try 
adding -package containers, or using --make which does this automatically.

Cheers,
	Simon