[Haskell-beginners] not able to compile Happy GLR files

I'm unable to compile the GLR examples (in the 'glr' directory) provided with Happy, version 1.16. I'm using ghc version 6.6.1. I've looked at the version of Happy currently in darcs and the pertinent part of the examples has not been updated there, either. This Happy seems out of date because it uses the flag "-package data"; my searching indicates that the 'data' package is old. Other errors remained after I removed the flag. Would someone please verify the error? Also, does anyone know of or have a GLR example that works? Thank you for reading or helping.