reproducible FreeBSD: Clean object dir before build

We want to avoid issues caused by old artifacts left by earlier builds.

Signed-off-by: Ed Maste <emaste@FreeBSD.org>
Signed-off-by: Holger Levsen <holger@layer-acht.org>

bin/reproducible_freebsd.sh

@@ -98,7 +98,7 @@ for FREEBSD_TARGET in ${FREEBSD_TARGETS} ;do
 	RSSH="ssh -o Batchmode=yes freebsd-jenkins.debian.net"
 	RSCP="scp -r freebsd-jenkins.debian.net"
 	TMPBUILDDIR=/usr/src
-	$RSSH 'sudo rm -rf /usr/src ; sudo mkdir /usr/src ; sudo chown jenkins /usr/src'  ### this is tmpfs on linux, we should move this to tmpfs on FreeBSD too
+	$RSSH 'sudo rm -rf /usr/src /usr/obj/usr/src ; sudo mkdir /usr/src ; sudo chown jenkins /usr/src'  ### this is tmpfs on linux, we should move this to tmpfs on FreeBSD too
 	# Ensure we start with the correct time on the target
 	$RSSH 'sudo service ntpd stop ; sudo ntpdate -b pool.ntp.org ; sudo service ntpd start'
 	$RSSH 'sudo service ntpd status ; date -u'