Linux: use -Wl,--no-as-needed on 32-bit builders.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 2518 matching lines @@
                   '-fomit-frame-pointer',
                   '-fdata-sections',
                   '-ffunction-sections',
                 ],
                 'ldflags': [
                   '-Wl,-O1',
                   '-Wl,--as-needed',
                   '-Wl,--gc-sections',
                 ],
               }],
+              ['OS=="linux" and target_arch=="ia32"', {

[Lei Zhang, 2013/03/12 01:19:22]

This should be conditioned on linux_use_gold_binary, rather than by
OS/target_arch.

This is also needed in release builds, but we may not have a bot that builds
that configuration. Perhaps the right condition is:

linux_use_gold_binary==1 and component=="shared_library"

+                'ldflags': [
+                  '-Wl,--no-as-needed',
+                ],
+              }],
             ],
           },
           'Release_Base': {
             'variables': {
               'release_optimize%': '2',
               # Binaries become big and gold is unable to perform GC
               # and remove unused sections for some of test targets
               # on 32 bit platform.
               # (This is currently observed only in chromeos valgrind bots)
               # The following flag is to disable --gc-sections linker
@@ skipping 1562 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }