mac ninja&make: Support GCC_ENABLE_SSE3_EXTENSIONS and friends.

pylib/gyp/xcode_emulation.py

 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 This module contains classes that help to emulate xcodebuild behavior on top of
 other build systems, such as make and ninja.
 """
 
 import gyp.common
@@ skipping 276 matching lines @@
     self._WarnUnimplemented('MACH_O_TYPE')
     self._WarnUnimplemented('PRODUCT_TYPE')
 
     archs = self._Settings().get('ARCHS', ['i386'])
     if len(archs) != 1:
       # TODO: Supporting fat binaries will be annoying.
       self._WarnUnimplemented('ARCHS')
       archs = ['i386']
     cflags.append('-arch ' + archs[0])
 
+    if archs[0] in ('i386', 'x86_64'):
+      if self._Test('GCC_ENABLE_SSE3_EXTENSIONS', 'YES', default='NO'):
+        cflags.append('-msse3')
+      if self._Test('GCC_ENABLE_SUPPLEMENTAL_SSE3_INSTRUCTIONS', 'YES',
+                    default='NO'):
+        cflags.append('-mssse3')  # Note 3rd 's'.
+      if self._Test('GCC_ENABLE_SSE41_EXTENSIONS', 'YES', default='NO'):
+        cflags.append('-msse4.1')
+      if self._Test('GCC_ENABLE_SSE42_EXTENSIONS', 'YES', default='NO'):
+        cflags.append('-msse4.2')
+
     cflags += self._Settings().get('OTHER_CFLAGS', [])
     cflags += self._Settings().get('WARNING_CFLAGS', [])
 
     config = self.spec['configurations'][self.configname]
     framework_dirs = config.get('mac_framework_dirs', [])
     for directory in framework_dirs:
       cflags.append('-F ' + directory.replace('$(SDKROOT)', sdk_root))
 
     self.configname = None
     return cflags
@@ skipping 645 matching lines @@
     # absolutified. Else, it's in the PATH (e.g. install_name_tool, ln).
     if os.path.sep in shell_list[0]:
       shell_list[0] = gyp_path_to_build_path(shell_list[0])
 
       # "script.sh" -> "./script.sh"
       if not os.path.sep in shell_list[0]:
         shell_list[0] = os.path.join('.', shell_list[0])
     postbuilds.append(gyp.common.EncodePOSIXShellList(shell_list))
 
   return postbuilds