Enable building for ARM with nacl-clang

build_tools/buildbot_common.sh

 #!/bin/bash
 # Copyright (c) 2014 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.
 
 RESULT=0
 MESSAGES=
 
 # SCRIPT_DIR must be defined by the including script
 readonly BASE_DIR="$(dirname ${SCRIPT_DIR})"
@@ skipping 55 matching lines @@
     if [ "${TOOLCHAIN}" = "pnacl" -a "${NACL_ARCH}" != "pnacl" ]; then
       continue
     fi
     if [ "${TOOLCHAIN}" != "pnacl" -a "${NACL_ARCH}" = "pnacl" ]; then
       continue
     fi
     # glibc doesn't work on arm for now.
     if [ "${TOOLCHAIN}" = "glibc" -a "${NACL_ARCH}" = "arm" ]; then
       continue
     fi
-    # nacl-clang doesn't work on arm for now (SDK libs not yet built)
-    # TODO(sbc): remove this once arm-nacl-clang support is in the SDK.
-    if [ "${TOOLCHAIN}" = "clang-newlib" -a "${NACL_ARCH}" = "arm" ]; then
-      continue
-    fi
     # i686-nacl-clang doesn't reference the i686-nacl/usr/include or
     # i686-nacl/usr/lib.
     # TODO(sbc): remove this once nacl-clang works with i686-nacl
     if [ "${TOOLCHAIN}" = "clang-newlib" -a "${NACL_ARCH}" = "i686" ]; then
       continue
     fi
     # bionic only works on arm for now.
     if [ "${TOOLCHAIN}" = "bionic" -a "${NACL_ARCH}" != "arm" ]; then
       continue
     fi
@@ skipping 44 matching lines @@
   echo "@@@BUILD_STEP clean@@@"
   CleanToolchain ${TOOLCHAIN}
 }
 
 CleanAllToolchains() {
   echo "@@@BUILD_STEP clean all@@@"
   for TC in ${TOOLCHAIN_LIST}; do
     CleanToolchain ${TC}
   done
 }