ok i have found it
my mk.conf (no in /etc) was not read.
i change the following lines in $base/share/mk/bsd.own.mk

.if defined(MAKECONF) && exists(${MAKECONF})
.include "${MAKECONF}"
.elif exists(/etc/mk.conf)
.include "/etc/mk.conf"
.endif

according to my localbase but why boostrap doesn't do it ?



regards

	julien