This starts to fix the scripts so that they load from /usr/lib/crosutils

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 $0)/../common.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils "$(dirname "$(readlink -f "$0")")/..")
+  local path
+
+  SCRIPT_ROOT=
+  for path in "${common_paths[@]}"; do
+    if [ -r "${path}/common.sh" ]; then
+      SCRIPT_ROOT=${path}
+      break
+    fi
+  done
+}
+
+find_common_sh
+. "${SCRIPT_ROOT}/common.sh" || (echo "Unable to load common.sh" && exit 1)
+# --- END COMMON.SH BOILERPLATE ---
 
 # Script must be run inside the chroot.
 restart_in_chroot_if_needed "$@"
 
 get_default_board
 
 DEFINE_string board "${DEFAULT_BOARD}" \
     "Board for which to build the package."
 DEFINE_boolean test "${FLAGS_FALSE}" \
   "Compile and run tests as well."
@@ skipping 70 matching lines @@
 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}"