Define os_posix in gyp files to get new Unix platforms added quickly

build/temp_gyp/googleurl.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.
 
 # TODO(mark): Upstream this file to googleurl.
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
@@ skipping 68 matching lines @@
         '../../googleurl/src/gurl_unittest.cc',
         '../../googleurl/src/url_canon_unittest.cc',
         '../../googleurl/src/url_parse_unittest.cc',
         '../../googleurl/src/url_test_utils.h',
         '../../googleurl/src/url_util_unittest.cc',
         # Make sure base and ICU are started up the 'Chromium way' since the
         # build is using the Chromium base & ICU.
         '../../base/test/run_all_unittests.cc',
       ],
       'conditions': [
-        ['OS=="linux" or OS=="freebsd"', {
+        ['os_posix==1 and OS!="mac"', {
           'conditions': [
             ['linux_use_tcmalloc==1', {
               'dependencies': [
                 '../../base/allocator/allocator.gyp:allocator',
               ],
             }],
           ],
         }],
         # TODO(victorw): The unittest code uses inline functions that access
         # global variables, it also uses internal functions that we may not want
         # to export, so skip building unittests for windows multi dll build.
         # The googleurl functions are tested by the static library build.
         ['OS=="win" and component=="shared_library"', {
           'type': 'none',
         }, {
           'type': 'executable',
         }],
       ],
     },
   ],
 }
 
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