[Haskell-cafe] how to write an haskell binding

hi, hopefully (well, i liked the discussions) this message will not spawn so much messages :) i'd like to know if there exist some general guidelines/information about writing an haskell (or is it *a* haskell ?) binding for a c or a c++ library. i worry about : * implementation tools : use tools like c2hs or others, or do that bare hands * haskell idioms/usage : make good use of monads, type classes and other haskell related things * for c++, is it better to first write a c api for the c++ code before writing the binding * maybe advice about the c api knowing there will be haskell binding * any thing i forgot thanks a lot, thu