SPELL=haskell-data-fix
         VERSION=0.3.4
          SOURCE="data-fix-${VERSION}.tar.gz"
   SOURCE_URL[0]=https://hackage.haskell.org/package/data-fix-${VERSION}/${SOURCE}
     SOURCE_HASH=sha512:108051feb64062526aaec0792bc0a81f5c79a11c4d7995647837f5f1e7086afec1c80804c1485123b08c2206d8a5fe9d11a5d30fd31477f201a545f240a2c744
         SOURCE2="data-fix-${VERSION}-rev2.cabal"
  SOURCE2_URL[0]=https://hackage.haskell.org/package/data-fix-${VERSION}/revision/2.cabal
    SOURCE2_HASH=sha512:e821e7898d25f80dd79021d02c133ac1c0fc77cc8cb3ce617c3665c6ce540235d8c299c7f3fdb267fbda153a3b7f0607814a6ee346853ca651187037d28a1bcf
SOURCE_DIRECTORY="${BUILD_DIRECTORY}/data-fix-${VERSION}"
        WEB_SITE="https://github.com/spell-music/data-fix"
      LICENSE[0]=BSD3
         ENTERED=20260818
           SHORT="Fixpoint data types"
cat << EOF
Fixpoint types and recursion schemes. If you define your AST as fixpoint type,
you get fold and unfold operations for free.

Thanks for contribution to: Matej Kollar, Herbert Valerio Riedel
EOF