Create a build_config header file.

src/trusted/service_runtime/mmap_unittest.cc

 /*
  * Copyright (c) 2012 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.
  */
 
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "native_client/src/include/nacl_defines.h"
+
 #if NACL_LINUX
 # include <sys/mman.h>
 #elif NACL_OSX
 # include <mach/mach.h>
 #endif
 
 #include "gtest/gtest.h"
 
 #include "native_client/src/include/portability_io.h"
 #include "native_client/src/trusted/desc/nacl_desc_effector_trusted_mem.h"
@@ skipping 440 matching lines @@
     // graceful.
     ASSERT_TRUE(NaClPtrIsNegErrno(&map_result));
     ASSERT_EQ(-(intptr_t) map_result, NACL_ABI_EACCES);
   } else {
     // On Unix, the Map() should succeed.
     ASSERT_FALSE(NaClPtrIsNegErrno(&map_result));
     AssertArrayFilled((char *) map_result, file_size);
     NaClDescUnmapUnsafe(desc, (void *) map_result, file_size_rounded_up);
   }
 }