[jhc] odd bug

22:40 ~/projects/Hubris/lib % cat Crasher.hs module RubyMap where qtrue = 2 22:40 ~/projects/Hubris/lib % jhci Crasher.hs jhci Crasher.hs jhc 0.7.1 (-n 0.7.1-0 ) Finding Dependencies... Using Ho Cache: '/Users/mwotton/.jhc/cache' RubyMap [Crasher.hs] Typechecking... [1 of 1] RubyMap (.............................................) Compiling... [1 of 1] RubyMap <..................................................> jhci: src/FrontEnd/Representation.hs:98:9-24: No instance nor default method for class operation Data.Binary.put this is a much cut-down version of a real problem. I've not used Binary anywhere, so I'm a bit confused - any tips? this is with the latest darcs sources. mark