Define ARCH_X86_32 and ARCH_X86_64

media/media.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 1314 matching lines @@
                 # fail to link when it creates an empty file list.  So add a
                 # dummy file keep the linker happy.  See http://crbug.com/157073
                 'base/simd/xcode_hack.c',
               ],
             }],
             ['os_posix==1 and OS!="mac"', {
               'variables': {
                 'conditions': [
                   ['target_arch=="ia32"', {
                     'yasm_flags': [
-                      '-DX86_32',
+                      '-DARCH_X86_32',
                       '-DELF',
                     ],
-                  }, {
+                  }, { # target_arch=="x64"
                     'yasm_flags': [
+                      '-DARCH_X86_64',
                       '-DELF',
                       '-DPIC',
                     ],
                   }],
                 ],
               },
             }],
           ],
           'variables': {
             'yasm_output_path': '<(SHARED_INTERMEDIATE_DIR)/media',
@@ skipping 319 matching lines @@
                   ],
                 }],
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }