Fix Mac ObjC PeerConnection API compilation.

talk/libjingle_tests.gyp

 #
 # libjingle
 # Copyright 2012 Google Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  1. Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.
 #  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 314 matching lines @@
             'java_in_dir': 'app/webrtc/androidtests',
             'resource_dir': 'app/webrtc/androidtests/res',
             'additional_src_dirs': ['app/webrtc/java/testcommon'],
             'native_lib_target': 'libjingle_peerconnection_so',
             'is_test_apk': 1,
           },
           'includes': [ '../build/java_apk.gypi' ],
         },
       ],  # targets
     }],  # OS=="android"
-    ['OS=="ios" or (OS=="mac" and target_arch!="ia32" and mac_sdk>="10.7")', {
+    ['OS=="ios" or (OS=="mac" and target_arch!="ia32")', {
       # The >=10.7 above is required to make ARC link cleanly (e.g. as
       # opposed to _compile_ cleanly, which the library under test
       # does just fine on 10.6 too).
       'targets': [
         {
           'target_name': 'libjingle_peerconnection_objc_test',
           'type': 'executable',
           'includes': [ 'build/objc_app.gypi' ],
           'dependencies': [
             '<(webrtc_root)/base/base_tests.gyp:rtc_base_tests_utils',
@@ skipping 85 matching lines @@
             'build/isolate.gypi',
           ],
           'sources': [
             'libjingle_peerconnection_unittest.isolate',
           ],
         },
       ],
     }],
   ],
 }