Fix NaCl build.

src/globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 48 matching lines @@
 # define V8_OS_WIN32 1
 # define V8_OS_WIN64 1
 #elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || \
     (defined(__MWERKS__) && defined(__INTEL__))
 # define V8_OS_WIN32 1
 #elif defined(__sun) || defined(sun)
 # define V8_OS_SOLARIS 1
 # define V8_OS_UNIX 1
 #elif defined(__native_client__)
 # define V8_OS_NACL 1
+# define V8_OS_UNIX 1
 #elif defined(__linux__) || defined(__linux)
 # define V8_OS_LINUX 1
 # define V8_OS_UNIX 1
 #elif defined(__FreeBSD__) || defined(__DragonFly__)
 # define V8_OS_FREEBSD 1
 # define V8_OS_BSD4 1
 # define V8_OS_UNIX 1
 #elif defined(__NetBSD__)
 # define V8_OS_NETBSD 1
 # define V8_OS_BSD4 1
@@ skipping 477 matching lines @@
 // the backend, so both modes are represented by the kStrictMode value.
 enum StrictModeFlag {
   kNonStrictMode,
   kStrictMode
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_GLOBALS_H_