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use -Wunused-packages for ghc >= 8.10

Open juhp opened this issue 3 years ago • 0 comments

This is useful for spotting unused dependencies:

  if impl(ghc >= 8.10)
    ghc-options:       -Wunused-packages

It might be slightly more involved for hpack.

juhp avatar Apr 10 '21 02:04 juhp