cros_workon_place: actually inplace when doing an install

bin/cros_workon_make

 #!/bin/bash
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # Simple wrapper script to build a cros_workon package incrementally.
 # You must already be cros_workon'ing the package in question.
 
 . "$(dirname $0)/../common.sh"
@@ skipping 67 matching lines @@
     echo "${pkgfile}" | \
         awk -F '/' '{ print $(NF-2) "/" $(NF-1) }')-"${unstable_suffix}"
 
 emerge_features=
 to_do="compile"
 if [ "${FLAGS_test}" = "${FLAGS_TRUE}" ]; then
   to_do="test"
   emerge_features="test"
 fi
 if [ "${FLAGS_install}" = "${FLAGS_TRUE}" ]; then
-  FEATURES="${emerge_features}" "${EMERGECMD}" "${1}"
+  SANDBOX_WRITE=~/trunk CROS_WORKON_INPLACE=1 \
+    FEATURES="${emerge_features} ${FEATURES}" "${EMERGECMD}" "${1}"
   exit $?
 fi
 
 clean=
 if [ "${FLAGS_reconf}" = "${FLAGS_TRUE}" ]; then
   clean="clean"
 else
   rm -f "/build/${BOARD_STR}/tmp/portage/${workpath}/.compiled"
 fi
 SANDBOX_WRITE=~/trunk CROS_WORKON_INPLACE=1 \
   "${EBUILDCMD}" "${pkgfile}" ${clean} "${to_do}"