src/platform-linux.cc in v8_base now seems to need '-lrt' for...

build/temp_gyp/v8.gyp

 # 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.
 
 # TODO(mark): Upstream this file to v8.
 {
   'variables': {
     'chromium_code': 1,
     'base_source_files': [
       '../../v8/src/third_party/dtoa/dtoa.c',
@@ skipping 317 matching lines @@
         '<@(base_source_files)',
       ],
       'sources!': [
         '<@(not_base_source_files)',
       ],
       'sources/': [
         ['exclude', '-arm\\.cc$'],
         ['exclude', 'src/platform-.*\\.cc$' ],
       ],
       'conditions': [
-        ['OS=="linux"', 
+        ['OS=="linux"',
           {
+            'link_settings': {
+              'libraries': [
+                # Needed for clock_gettime() used by src/platform-linux.cc.
+                '-lrt',
+              ],
+            },
             'sources/': [
               ['include', 'src/platform-linux\\.cc$'],
               ['include', 'src/platform-posix\\.cc$']
             ]
           }
         ],
         ['OS=="mac"', 
           {
             'sources/': [
               ['include', 'src/platform-macos\\.cc$'],
@@ skipping 22 matching lines @@
         'js2c',
         'v8_base',
       ],
       'include_dirs': [
         '../../v8/src',
       ],
       'sources': [
         '<(SHARED_INTERMEDIATE_DIR)/v8/libraries.cc',
         '../../v8/src/snapshot-empty.cc',
       ],
+      'export_dependent_settings': [
+        'v8_base',
+      ],
     },
     {
       'target_name': 'mksnapshot',
       'type': 'executable',
       'dependencies': [
         'v8_nosnapshot',
       ],
       'msvs_guid': '865575D0-37E2-405E-8CBA-5F6C485B5A26',
       'sources': [
         '../../v8/src/mksnapshot.cc',
@@ skipping 25 matching lines @@
       ],
       'sources': [
         '<(SHARED_INTERMEDIATE_DIR)/v8/libraries-empty.cc',
         '<(INTERMEDIATE_DIR)/snapshot.cc',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../../v8/include',
         ],
       },
+      'export_dependent_settings': [
+        'v8_base',
+      ],
     },
     {
       'target_name': 'v8_shell',
       'type': 'executable',
       'dependencies': [
         'v8',
       ],
       'sources': [
         '../../v8/samples/shell.cc',
       ],
@@ skipping 144 matching lines @@
           ]},
         }],
         [ 'OS=="win"', {
           'sources!': [ '../../v8/src/d8-readline.cc' ],
         }],
       ],
     },
   ]}], # OS != "linux" (temporary, TODO(sgk))
   ],
 }