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authorAaron Allen <aaron@flipstone.com>2021-05-04 21:35:11 -0500
committerMarge Bot <ben+marge-bot@smart-cactus.org>2021-05-06 12:44:43 -0400
commit0281dae8b3fe3384939c415ae72ca2440b3cafb3 (patch)
treee4dd89beaa5ba386fd11d719ea15d1f4bde35cea /configure.ac
parent87d8c008eeb8ff733ac0bfcfdbb0f1a758a417b9 (diff)
downloadhaskell-0281dae8b3fe3384939c415ae72ca2440b3cafb3.tar.gz
Disallow -XDerivingVia when -XSafe is on (#19786)
Since `GeneralizedNewtypeDeriving` is considered unsafe, `DerivingVia` should be as well.
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