Specify dependences correctly when building mac tools for iOS.

breakpad/breakpad.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.
 
 {
   'includes': [
     'breakpad_sender.gypi',
     'breakpad_handler.gypi',
   ],
   'conditions': [
@@ skipping 700 matching lines @@
           ],
 
           'include_dirs': [
             '..',
             'src',
           ],
         },
       ],
     }],
     [ 'OS=="ios"', {
+      'variables': {
+        'ninja_output_dir': 'ninja-breakpad',
+        'ninja_product_dir':
+          '<(DEPTH)/xcodebuild/<(ninja_output_dir)/<(CONFIGURATION_NAME)',
+      },
+      # Generation is done via two actions: (1) compiling the executable with
+      # ninja, and (2) copying the executable into a location that is shared
+      # with other projects. These actions are separated into two targets in
+      # order to be able to specify that the second action should not run until
+      # the first action finishes (since the ordering of multiple actions in
+      # one target is defined only by inputs and outputs, and it's impossible
+      # to set correct inputs for the ninja build, so setting all the inputs
+      # and outputs isn't an option).
       'targets': [
         {
-          'target_name': 'breakpad_utilities',
+          'target_name': 'compile_breakpad_utilities',
           'type': 'none',
           'variables': {
-            'ninja_output_dir': 'ninja-breakpad',
             # Gyp to rerun
             're_run_targets': [
               'breakpad/breakpad.gyp',
             ],
           },
           'includes': ['../build/ios/mac_build.gypi'],
           'actions': [
             {
               'action_name': 'compile breakpad utilities',
               'inputs': [],
               'outputs': [],
               'action': [
                 '<@(ninja_cmd)',
                 'dump_syms',
                 'symupload',
               ],
               'message': 'Generating the breakpad executables',
             },
+          ],
+        },
+        {
+          'target_name': 'breakpad_utilities',
+          'type': 'none',
+          'dependencies': [
+            'compile_breakpad_utilities',
+          ],
+          'actions': [
             {
               'action_name': 'copy dump_syms',
               'inputs': [
                 '<(ninja_product_dir)/dump_syms',
               ],
               'outputs': [
                 '<(PRODUCT_DIR)/dump_syms',
               ],
               'action': [
                 'cp',
@@ skipping 99 matching lines @@
             'include_dirs': [
               '<(DEPTH)/third_party/GTM',
               '<(DEPTH)/third_party/GTM/Foundation',
             ],
           },
         },
       ],
     }],
   ],
 }