Link applications with -Wl,-ObjC to keep Objective-C implementations availabl...

build/common.gypi

 # 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.
 
 {
   'variables': {
     'chromium_code%': 0,
   },
   'target_defaults': {
     # TODO(bradnelson): This should really be able to be either:
@@ skipping 72 matching lines @@
           'USE_HEADERMAP': 'NO',
           'WARNING_CFLAGS': ['-Wall', '-Wendif-labels'],
         },
         'target_conditions': [
           ['_type=="shared_library"', {
             'xcode_settings': {'GCC_DYNAMIC_NO_PIC': 'NO'},
           }],
           ['_type!="static_library"', {
             'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
           }],
+          ['_type=="application"', {
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-ObjC']},
+          }],
           ['_type=="application" or _type=="executable"', {
             'postbuilds': [
               {
                 'variables': {
                   # Define strip_from_xcode in a variable ending in _path so
                   # that gyp understands it's a path and performs proper
                   # relativization during dict merging.
                   'strip_from_xcode_path': 'mac/strip_from_xcode',
                 },
                 'postbuild_name': 'Strip If Needed',
@@ skipping 99 matching lines @@
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     #
     # xcodebuild_gyp is a temporary name to avoid colliding with the xcodebuild
     # directory used by the non-gyp Xcode build system.  When the gyp-based
     # Xcode build system replaces the older system, this should be changed to
     # simply "xcodebuild" or some other suitable name.
     'SYMROOT': '<(DEPTH)/xcodebuild_gyp',
   },
 }