Hi! As for 5.x notes about -O2 (libalias, gcc) were removed at revision 1.229.2.7 of /usr/src/share/examples/etc/make.conf. But for 6.0-BETA3 we do have these warnings. Should they be removed as for 5.x? Is it safe to use -O2 to build/install kernel, world, ports fro 6.0? WBR -- bsam