> I am going to install hmake and upgrade to ghc 5 but in the
> meantime I decided to use make.
>
> I am puzzled however. Presumably building a module that
> imports a module needs the .hi file and therefore the
> makefile should be something like this:
>
> Tagsv1.o : Tagsv1.hs
> ghc -c Tagsv1.hs -package lang
>
> Basev1.o : Tagsv1.hi Basev1.hs
> ghc -c Basev1.hs -package lang
>
> But if I do this then make complains if I want to see what it
> will generate
>
> [dom@lhrtba8fd85 maketest]$ make -n
> ghc -c Tagsv1.hs -package lang
> make: *** No rule to make target `Tagsv1.hi', needed by
> `Basev1.o'. Stop.
>
> Running make works as by the time the rule gets executed the
> .hi file exists.
>
> Can anyone suggest something better?
GHC's documentation has some useful tips on using make with Haskell:
http://www.haskell.org/ghc/docs/latest/set/separate-compilation.html#USI
NG-MAKE
Chees,
Simon
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