[Haskell-beginners] How to build a package?

[John M. Dlugosz]

On 4/23/2014 8:01 AM, Henk-Jan van Tuyl wrote:
>
> Go to the directory where the .cabal file is, and type
>    cabal install
> without a package name.

Ah, I see.  I was looking for a makefile or something that was part of the package.

But won't that "install" it, overwriting the normal one?

>
>> A related issue: what should I do about the local copy of a module name that is also
>> installed?  Can I make my project use that instead, without having to globally change
>> the name in all the files?
>
> You can use a GHC extension, to specify the package to use, see
>    http://www.haskell.org/ghc/docs/latest/html/users_guide/syntax-extns.html
> look for
>    Package-qualified imports
>
> Regards,
> Henk-Jan van Tuyl
>
>