Update boost to 1.47.0 and, with glibc, build more boost libraries.

libraries/boost_1_47_0/nacl-boost_1_47_0.sh

+#!/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.
+#
+
+# nacl-boost_1_47_0.sh
+#
+# usage:  nacl-boost_1_47_0.sh
+#
+# this script downloads, patches, and builds boost for Native Client
+#
+
+readonly URL=http://commondatastorage.googleapis.com/nativeclient-mirror/nacl/boost_1_47_0.tar.bz2
+#readonly PATCH_FILE=nacl-SDL_net-1.2.7.patch
+readonly PACKAGE_NAME=boost_1_47_0
+
+source ../../build_tools/common.sh
+
+CustomConfigureStep() {
+  ChangeDir ${NACL_PACKAGES_REPOSITORY}/${PACKAGE_NAME}
+  echo "using gcc : 4.4.3 : ${NACLCXX} ;" > tools/build/v2/user-config.jam
+}
+
+CustomBuildStep() {
+  ./bootstrap.sh
+
+  # TODO(eugenis): build dynamic libraries, too
+  if [ $NACL_GLIBC = "1" ] ; then
+    ./bjam install \
+      --prefix=${NACL_SDK_USR} \
+      link=static \
+      -d+2 \
+      --without-python \
+      --without-signals \
+      --without-mpi
+  else
+    ./bjam install \
+      --prefix=${NACL_SDK_USR} \
+      -d+2 \
+      --with-date_time \
+      --with-program_options
+  fi
+}
+
+CustomPackageInstall() {
+  DefaultPreInstallStep
+  DefaultDownloadBzipStep
+  DefaultExtractBzipStep
+  # No patch needed.
+  CustomConfigureStep
+  CustomBuildStep
+  # Installation is done in the build step.
+  DefaultCleanUpStep
+}
+
+
+CustomPackageInstall
+exit 0