cups: parse cups-config output to reduce flags spew

printing/printing.gyp

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 200 matching lines @@
             'conditions': [
               ['OS=="mac"', {
                 'link_settings': {
                   'libraries': [
                     '$(SDKROOT)/usr/lib/libcups.dylib',
                   ]
                 },
               }, {
                 'link_settings': {
                   'libraries': [
-                    '<!@(cups-config --libs)',
+                    '<!@(python cups_config_helper.py --libs)',
                   ],
                 },
               }],
             ],
           },
         }],
       ],
     },
   ],
 }