[NaCl SDK] Add arm-nacl-clang support to the SDK

native_client_sdk/src/tools/nacl_config.py

 #!/usr/bin/env python
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """A helper script to print paths of NaCl binaries, includes, libs, etc.
 
 It is similar in behavior to pkg-config or sdl-config.
 """
 
@@ skipping 101 matching lines @@
            'Use the -a or --arch flags to specify one.\n' % (
                ', '.join(VALID_ARCHES), toolchain))
 
   if arch:
     if toolchain == 'pnacl':
       ExpectArch(arch, VALID_PNACL_ARCHES)
     else:
       ExpectArch(arch, VALID_ARCHES)
 
     if arch == 'arm':
-      Expect(toolchain in ['newlib', 'bionic'],
+      Expect(toolchain in ['newlib', 'bionic', 'clang-newlib'],
              'The arm arch only supports newlib.')
 
 
 def GetArchName(arch):
   return ARCH_NAME.get(arch)
 
 
 def GetArchAltName(arch):
   return ARCH_ALT_NAME.get(arch)
 
@@ skipping 134 matching lines @@
 
   return 0
 
 
 if __name__ == '__main__':
   try:
     sys.exit(main(sys.argv[1:]))
   except Error as e:
     sys.stderr.write(str(e) + '\n')
     sys.exit(1)