cabal-version: 2.4 name: mixin version: 0 -- mixin field: -- in 2.2 we got leading/trailing commas -- in 3.0 we got lax space parsing -- -- This should fail executable str-example main-is: Main.hs build-depends: base, str-string, str-bytestring mixins: str-string ( Str as Str.String ), str-bytestring ( Str as Str.ByteString ), hs-source-dirs: str-example