Merge pull request #1477 from josephcsible/ghc92

Enable FlexibleContexts in Servant.API.ContentTypes
haskell-servant · Oct 31, 2021 · 70b3721 · 70b3721
2 parents bd9e4b1 + fea40bd
commit 70b3721
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diff --git a/changelog.d/1477 b/changelog.d/1477
@@ -0,0 +1,9 @@
+synopsis: Enable FlexibleContexts in Servant.API.ContentTypes
+prs: #1477
+
+description: {
+
+Starting with GHC 9.2, UndecidableInstances no longer implies FlexibleContexts.
+Add this extension where it's needed to make compilation succeed.
+
+}
diff --git a/servant/src/Servant/API/ContentTypes.hs b/servant/src/Servant/API/ContentTypes.hs
@@ -2,6 +2,7 @@
 {-# LANGUAGE DataKinds             #-}
 {-# LANGUAGE DeriveDataTypeable    #-}
 {-# LANGUAGE DeriveGeneric         #-}
+{-# LANGUAGE FlexibleContexts      #-}
 {-# LANGUAGE FlexibleInstances     #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE OverloadedStrings     #-}