You didn't use a clean sys-dir to start from. This error happens when you have old module/altq/XXX in your sys-dir. Please make sure, that you don't have any old garbage lying around (cvs up -dPA) > cc1: -I- specified twice > mkdep: compile failed > *** Error code 1 > > Stop in /space/src/sys/modules/altq/altq_blue. > *** Error code 1