Source: hedgewars Version: 0.9.22-dfsg-7 hedgewars build-depends on dataenc, which has been deprecated in favor of sandi[0]. dataenc is broken with GHC 8, which should mean that upstream hedgewars already won't build with GHC 8. I imagine that switching to sandi will make everyone happy. [0] https://hackage.haskell.org/package/dataenc