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Diffstat (limited to 'compiler/GHC/Driver/Session.hs')
| -rw-r--r-- | compiler/GHC/Driver/Session.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/GHC/Driver/Session.hs b/compiler/GHC/Driver/Session.hs index b0b37a822c..780a38e3d7 100644 --- a/compiler/GHC/Driver/Session.hs +++ b/compiler/GHC/Driver/Session.hs @@ -3851,6 +3851,10 @@ impliedXFlags , (LangExt.TemplateHaskell, turnOn, LangExt.TemplateHaskellQuotes) , (LangExt.Strict, turnOn, LangExt.StrictData) + -- Historically only UnboxedTuples was required for unboxed sums to work. + -- To avoid breaking code, we make UnboxedTuples imply UnboxedSums. + , (LangExt.UnboxedTuples, turnOn, LangExt.UnboxedSums) + -- The extensions needed to declare an H98 unlifted data type , (LangExt.UnliftedDatatypes, turnOn, LangExt.DataKinds) , (LangExt.UnliftedDatatypes, turnOn, LangExt.StandaloneKindSignatures) |