[Haskell-cafe] What is a good way to test library on several ghc's?

Anton Kholomiov anton.kholomiov at gmail.com
Mon Mar 13 07:27:15 UTC 2017

Someone asked to add support in my lib for older version of GHC.
I know that there are GHC-version specific pragmas to
activate the code on specific version.

I'm not quite sure how to setup the environment to use several GHCs.
How do you do that kind of thing?

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