libghc-errors-dev 2.3.0-3build2 (riscv64 binary) in ubuntu groovy

 This library encourages an error-handling style that directly uses the
 type system, rather than out-of-band exceptions.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.