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Fix -Wnoncanonical-monoid-instances warnings

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This commit is contained in:
Tomas Janousek
2021-10-31 17:17:37 +00:00
parent d2f0a0586c
commit d8faed6ad2
5 changed files with 13 additions and 18 deletions
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XMonad/Util/PureX.hs
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@@ -115,7 +115,6 @@ instance Semigroup a => Semigroup (PureX a) where
(<>) = liftA2 (<>)
instance Monoid a => Monoid (PureX a) where
mappend = liftA2 mappend
mempty = return mempty
-- | The @XLike@ typeclass over monads reading @XConf@ values and tracking