Minor changes, additional files.

experimental/hex/scons

+#!/bin/bash
+#
+# Copyright (c) 2011 The Native Client Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+readonly SCRIPT_DIR="$(dirname "$0")"
+readonly SCRIPT_DIR_ABS="$(cd "${SCRIPT_DIR}" ; pwd -P)"
+
+# NACL_SDK_ROOT must be set.
+if [ x"${NACL_SDK_ROOT}"x == "xx" ] ; then
+  echo "Error: NACL_SDK_ROOT is not set."
+  exit 1;
+fi
+
+# NACL_TARGET_PLATFORM is really the name of a folder with the base dir -
+# usually nacl-sdk-root - within which the toolchain for the target platform
+# are found.
+export NACL_TARGET_PLATFORM=pepper_16
+
+readonly NACL_PLATFORM_DIR="${NACL_SDK_ROOT}/${NACL_TARGET_PLATFORM}"
+readonly BASE_SCRIPT="${NACL_PLATFORM_DIR}/third_party/scons-2.0.1/script/scons"
+
+export SCONS_LIB_DIR="${NACL_PLATFORM_DIR}/third_party/scons-2.0.1/engine"
+export PYTHONPATH="${NACL_PLATFORM_DIR}/third_party/scons-2.0.1/engine"
+# We have to do this because scons overrides PYTHONPATH and does not preserve
+# what is provided by the OS.  The custom variable name won't be overwritten.
+export PYMOX="${NACL_PLATFORM_DIR}/third_party/pymox"
+
+"${BASE_SCRIPT}" --file=build.scons \
+                 --site-dir="${NACL_PLATFORM_DIR}/build_tools/nacl_sdk_scons" \
+                 $*
+