Re: How to use Control.Monad.State?

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On 11/14/08 06:22, Malcolm Wallace wrote:
> Larry,
>
> Sorry for the delay in response - I have only just seen your messages.
>   
No problem.  Thanks,  Malcolm.
> I think your first approach, using a Makefile, was sound.  The only
> thing missing was the specification of the package in which the module
> Control.Monad.State lives.  I.e. you need to add "-package mtl" to the
> compilation commands.
>   
[snip]

I tried with the attached Makefile (including your suggested -package 
mtl flag);
however, I still got:
{--cut here--
Compilation started at Fri Nov 14 07:47:34

make -k hat
hmake -hat -package mtl 
-P/usr/lib/haskell-packages/ghc6/lib/hat-2.05/ghc-6.8.2/Hat 
-XMultiParamTypeClasses -XFunctionalDependencies -XFlexibleInstances 
tickSimple
hat-trans   -P/usr/lib/haskell-packages/ghc6/lib/hat-2.05/ghc-6.8.2/Hat 
tickSimple.hs
Wrote Hat/tickSimple.hs
/usr/bin/haskell-compiler   -package mtl -XMultiParamTypeClasses 
-XFunctionalDependencies -XFlexibleInstances   
-i/usr/lib/haskell-packages/ghc6/lib/hat-2.05/ghc-6.8.2/Hat  -c -package 
hat -o Hat/tickSimple.o Hat/tickSimple.hs

Hat/tickSimple.hs:4:0:
    Bad interface file: 
/usr/lib/haskell-packages/ghc6/lib/hat-2.05/ghc-6.8.2/Hat/Prelude.hi
        Something is amiss; requested module  main:Prelude differs from 
name found in the interface file hat-2.5:Hat.Prelude
make: *** [hat] Error 1

Compilation exited abnormally with code 2 at Fri Nov 14 07:47:37

}--cut here--

I'd appreciate any further help you could provide.

-regards,
Larry


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 filename="Makefile"

MAIN=Insort
MAIN=tickSimple

HAT.dir=/usr/lib/haskell-packages/ghc6/lib/hat-2.05/ghc-6.8.2/Hat

INCS=$(HAT.dir)

GHC.FLAGS=-P$(INCS)
GHC.LANG=-XMultiParamTypeClasses -XFunctionalDependencies -XFlexibleInstances
GHC.OPTS=$(GHC.FLAGS) $(GHC.LANG)

run:
	runghc $(GHC.LANG) $(MAIN).hs

hat:
	hmake -hat -package mtl $(GHC.OPTS) $(MAIN)

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