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Diffstat (limited to 'compiler/Language/Haskell/Syntax/Decls.hs')
| -rw-r--r-- | compiler/Language/Haskell/Syntax/Decls.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/Language/Haskell/Syntax/Decls.hs b/compiler/Language/Haskell/Syntax/Decls.hs index 21a03c9c22..50ab1fd6be 100644 --- a/compiler/Language/Haskell/Syntax/Decls.hs +++ b/compiler/Language/Haskell/Syntax/Decls.hs @@ -580,7 +580,8 @@ declaration before checking all of the others, supporting polymorphic recursion. See https://gitlab.haskell.org/ghc/ghc/wikis/ghc-kinds/kind-inference#proposed-new-strategy and #9200 for lots of discussion of how we got here. -The detection of CUSKs is enabled by the -XCUSKs extension, switched on by default. +The detection of CUSKs is enabled by the -XCUSKs extension, switched off by default +in GHC2021 and on in Haskell98/2010. Under -XNoCUSKs, all declarations are treated as if they have no CUSK. See https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0036-kind-signatures.rst |