How to use a precompiled library in stack

[Rodolpho Pueyrredón]

Hi guys.

I took the RethinkDB 2.2 library from Hackage and compiled it on the stack. As a result I now have these various hi files.

I was wondering how I can use this within another stack project.

I wanted to use import Database.RethinkDB normally like any other module.

[IC Rainbow]

Add the package to your project dependencies. No need to compile it yourself.

https://docs.haskellstack.org/en/stable/GUIDE/#adding-dependencies

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[Rodolpho Pueyrredón]

I tried this, but incompatibilities appear. The rethinkdb package is a little old.

I tried to use 'allow-newer', but it gives error. The rethinkdb-2.2.0.10 package requires another, older version of the GHC. I don't know how to get around this. So when I compile separately it works because it uses the right version.

That is, I would have to compile the code with a newer version of the GHC and only for that package to use an old version. But I don't think that can be done.

[IC Rainbow]

According to its configuration[1] you can use

resolver: nightly-2017-05-07

https://github.com/AtnNn/haskell-rethinkdb/blob/master/stack.yaml

That's kinda old, yes. Maybe it wouldn't even work after all the protocol updates.

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[Rodolpho Pueyrredón]

Thanks for the tip. But I decided to adapt the driver and found it was easy. Now I can work with a more recent lts. Even so thanks brother