Make gtest always use simple internal regex engine.

testing/gtest.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.
 
 {
   'targets': [
     {
       'target_name': 'gtest',
       'type': 'static_library',
       'sources': [
@@ skipping 32 matching lines @@
       'sources!': [
         'gtest/src/gtest-all.cc',  # Not needed by our build.
       ],
       'include_dirs': [
         'gtest',
         'gtest/include',
       ],
       'dependencies': [
         'gtest_prod',
       ],
+      'defines': [
+        # In order to allow regex matches in gtest to be shared between Windows
+        # and other systems, we tell gtest to always use it's internal engine.
+        'GTEST_HAS_POSIX_RE=0',
+      ],
+      'all_dependent_settings': {
+        'defines': [
+          'GTEST_HAS_POSIX_RE=0',
+        ],
+      },
       'conditions': [
         ['OS == "mac" or OS == "ios"', {
           'sources': [
             'gtest_mac.h',
             'gtest_mac.mm',
             'platform_test_mac.mm'
           ],
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
@@ skipping 164 matching lines @@
     {
       'target_name': 'gtest_prod',
       'toolsets': ['host', 'target'],
       'type': 'none',
       'sources': [
         'gtest/include/gtest/gtest_prod.h',
       ],
     },
   ],
 }