Hi, Looks like debian testing is using bison-1.75 now (was using 1.35 previously) which has some minor problems parsing some of the yacc files. The attached patch got gdb to compile for me using bison 1.75 and 1.35 on a debian system. The missing semicolons seem obvious fixes to me, but the new setup rule I added I'm not sure about since I can't test this myself and don't have a good understanding of yacc grammar. For what it's worth, here's my configure options: --target=avr --enable-build-warnings=-Werror Ted Roth