I get the same error, the enabled options are dbus, pgo and optimized_cflags. I build with access to X. My uname -a is: FreeBSD beastie 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #15: Thu Dec 1 22:33:44 CET 2011 root at beastie:/usr/obj/usr/src/sys/BEASTIE amd64