Re: Newbish building question

2008/11/13 J. Garrett Morris :

(addToUFM_C add inst_env cls_nm (ClsIE [ins_item] ins_tyvar))

Did you try make distclean and building again? This often fixes things, it could also be that extendInstEnv was inlined somewhere, though that should not lead to the error, either. No idea what else could have happened. -- Push the envelope. Watch it bend.