libghc-uulib-dev 0.9.23-3build1 (riscv64 binary) in ubuntu focal

 The uulib Haskell library contains fast, error repairing parser
 combinators (UU.Parsing), pretty print combinators (UU.Pretty) and a
 set of data structures and algorithms for working with sets and
 sequences (UU.DData) for Haskell.
 .
 The library is developed at Utrecht University and is part of the
 Haskell Utrecht Tools.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.