unknown type name namespace in xcode (Awesomium)

Why does Xcode insist on "Unknown type name 'namespace'" in this C++ header ?!!

Bascially i am trying to use "Awesomium" http://awesomium.com/ sdk in my mac application and i keep getting

"Unk开发者_开发百科nown type name 'namespace" in their hearder files

#ifndef __KEYBOARDCODES_H__
#define __KEYBOARDCODES_H__

namespace Awesomium {

any ideas?

If you wish to use Awesomium with Objective-C, you will need to use the ANSI C API instead. More information: http://support.awesomium.com/kb/wrappers-integration/ansi-c-api

If you have any other questions, please drop us a line in our support forum: http://support.awesomium.com

Using identifiers with leading double underscores is illegal in user code.