travis: use ethereal.

Closes: #9396 [via git-merge-pr]

common/travis/build.sh

@@ -2,16 +2,20 @@
 #
 # build.sh
 
-[ "$XLINT" ] && exit 0 
-
 if [ "$1" != "$2" ]; then
 	arch="-a $2"
 fi
 
-PKGS=$(./xbps-src sort-dependencies $(cat /tmp/templates))
+# Tell xbps-src what is our arch, this is done when doing
+# binary-bootstrap, but we need to do it every time since
+# our masterdir is ethereal.
+/bin/echo -e '\x1b[32mWriting bootstrap arch into .xbps_chroot_init of masterdir\x1b[0m'
+echo "$1" > /hostrepo/masterdir/.xbps_chroot_init
+
+PKGS=$(/hostrepo/xbps-src sort-dependencies $(cat /tmp/templates))
 
 for pkg in ${PKGS}; do
-	./xbps-src -H $HOME/hostdir $arch pkg "$pkg"
+	/hostrepo/xbps-src -H "$HOME"/hostdir $arch pkg "$pkg"
 	[ $? -eq 1 ] && exit 1
 done