Last gyp patch for cross-platform Unix support

third_party/expat/expat.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.
 
 {
   'target_defaults': {
     'defines': [
       '_LIB',
       'XML_STATIC',  # Compile for static linkage.
     ],
     'include_dirs': [
       'files/lib',
     ],
     'dependencies': [
     ]
   },
   'conditions': [
-    ['OS=="linux" or OS=="freebsd" or OS=="openbsd"', {
+    ['os_posix == 1 and OS != "mac"', {
       # On Linux, we implicitly already depend on expat via fontconfig;
       # let's not pull it in twice.
       'targets': [
         {
           'target_name': 'expat',
           'type': 'settings',
           'link_settings': {
             'libraries': [
               '-lexpat',
             ],
@@ skipping 40 matching lines @@
       ],
     }],
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: