Last gyp patch for cross-platform Unix support

testing/gtest.gyp

 # Copyright (c) 2009 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',
       'msvs_guid': 'BFE8E2A7-3B3B-43B0-A994-3058B852DB8B',
@@ skipping 44 matching lines @@
             'gtest_mac.h',
             'gtest_mac.mm',
             'platform_test_mac.mm'
           ],
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
             ],
           },
         }],
-        ['OS == "mac" or OS == "linux" or OS == "freebsd" or OS == "openbsd"', {
+        ['os_posix == 1', {
           'defines': [
             # gtest isn't able to figure out when RTTI is disabled for gcc
             # versions older than 4.3.2, and assumes it's enabled.  Our Mac
             # and Linux builds disable RTTI, and cannot guarantee that the
             # compiler will be 4.3.2. or newer.  The Mac, for example, uses
             # 4.2.1 as that is the latest available on that platform.  gtest
             # must be instructed that RTTI is disabled here, and for any
             # direct dependents that might include gtest headers.
             'GTEST_HAS_RTTI=0',
           ],
@@ skipping 56 matching lines @@
       ],
     },
   ],
 }
 
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