Add migration guide for #9718 (#10578)

[cabal.git] / cabal-testsuite / PackageTests / Backpack / Includes2 / cabal-external-target.test.hs

import Test.Cabal.Prelude

main = cabalTest $ do
    skipUnlessGhcVersion ">= 8.1"
    withProjectFile "cabal.external.project" $ do
        cabal "v2-build" ["mylib"]