On Sun, Jan 07, 2007 at 02:39:46AM -0800, Yang wrote: > > /usr/local/bin/ghc -H16m -O -cpp -fglasgow-exts -O -c LALR.lhs -o > LALR.o -ohi LALR.hi > > LALR.lhs:626:34: Not in scope: `bounds' You need to either get happy from its darcs repo or build a 1.16 release candidate: http://haskell.org/happy/happy-1.16rc2.tar.gz Thanks Ian