Add X32 port into V8

Makefile

 # 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 202 matching lines @@
 # - "nacl" : cross-compile for Native Client (ia32 and x64)
 # - default (no target specified): build all DEFAULT_ARCHES and MODES
 # - "check": build all targets and run all tests
 # - "<arch>.clean" for any <arch> in ARCHES
 # - "clean": clean all ARCHES
 
 # ----------------- internal stuff ------------------------
 
 # Architectures and modes to be compiled. Consider these to be internal
 # variables, don't override them (use the targets instead).
-ARCHES = ia32 x64 arm arm64 mips mipsel x87
+ARCHES = ia32 x64 x32 arm arm64 mips mipsel x87
 DEFAULT_ARCHES = ia32 x64 arm
 MODES = release debug optdebug
 DEFAULT_MODES = release debug
 ANDROID_ARCHES = android_ia32 android_arm android_arm64 android_mipsel android_x87
 NACL_ARCHES = nacl_ia32 nacl_x64
 
 # List of files that trigger Makefile regeneration:
 GYPFILES = build/all.gyp build/features.gypi build/standalone.gypi \
            build/toolchain.gypi samples/samples.gyp src/d8.gyp \
            test/cctest/cctest.gyp tools/gyp/v8.gyp
@@ skipping 235 matching lines @@
         svn checkout --force http://gyp.googlecode.com/svn/trunk build/gyp \
             --revision 1831
         svn checkout --force \
             https://src.chromium.org/chrome/trunk/deps/third_party/icu46 \
             third_party/icu --revision 258359
         ( test -d buildtools || \
           git clone https://chromium.googlesource.com/chromium/buildtools.git; \
           cd buildtools; \
           git fetch origin; \
           git checkout 5d89977ce55240995d1596fe420b818468f5ec37 )