Make ninja build on mac work

runtime/bin/net/ssl.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.
 
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # This file is a modified copy of Chromium's src/net/third_party/nss/ssl.gyp.
 # Revision 169195 (this should agree with "nss_rev" in DEPS).
+
+# The following modification was made to make sure we have the same
+# xcode_settings on all configurations (otherwise we can't build with ninja):
+#   'configurations': {
+#     'Debug_Base': {
+# +     'inherit_from': ['Dart_Base'],
+#       'defines': [
+#         'DEBUG',
+#       ],
+#    },
+#  },
+
 {
   # Conditions section for ssl-bodge (Compiling SSL on linux using system
   # NSS and NSPR libraries) removed:
   # 'conditions': [
   #   [ 'os_posix == 1 and OS != "mac" and OS != "ios"', {
   #   ...
   #   }]],
 
   # Added by Dart. All Dart comments refer to the following block or line.
   'includes': [
@@ skipping 131 matching lines @@
         # Dart: Conditions sections for ssl/bodge removed.
         #       [ 'os_posix == 1 and OS != "mac" and OS != "ios", {
         #         ...
         #       ],
         #       [ 'OS == "mac" or OS == "ios" or OS == "win"', {
         #         ...
         #       ],
       ],
       'configurations': {
         'Debug_Base': {
+          'inherit_from': ['Dart_Base'],
           'defines': [
             'DEBUG',
           ],
         },
       },
     },
   ],
   }]],
 }