Use gold from third_party/binutils rather then third_party/gold.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 68a4316b3c4bcfca9e46c1ed8e2f6f78e5f683b6..2e91b33463136ec98b6554311a02fd33ad1a1591 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -1339,7 +1339,30 @@
       }, {
         'syzygy_optimize%': 0,
       }],
-
+      # Get binutils version so we can enable debug fission if we can.
+      ['os_posix==1 and OS!="mac" and OS!="ios"', {
+        'binutils_version%': '<!(python <(DEPTH)/build/compiler_version.py assembler)',
+        'conditions': [
+          # On Android we know the binutils version in the toolchain.
+          ['OS=="android"', {
+            'binutils_version%': 222,

[Lei Zhang, 2014/04/03 23:00:01]

In this case, since we already know, should this omit the '%', or do you still
want binutils_version to be overwritable from GYP_DEFINES?

Same for binutils_version and binutils_dir below.

[mithro-old, 2014/04/04 03:36:28]

Done.

+          }],
+          # Our version of binutils in third_party/binutils
+          ['linux_use_gold_binary==1', {
+            'binutils_version%': 224,
+            'conditions': [
+              ['host_arch=="x64"', {
+                'binutils_dir%': 'third_party/binutils/Linux_x64/Release',

[Lei Zhang, 2014/04/03 23:00:01]

Since there will always be a Release component in the path, move it down to line
3866/3869. Alternatively, specify path/to/Release/bin here and just use
<(binutils_dir) below?

[mithro-old, 2014/04/04 03:36:28]

Done.

+              }],
+              ['host_arch=="ia32"', {
+                'binutils_dir%': 'third_party/binutils/Linux_ia32/Release',
+              }],
+            ],
+          }],
+        ],
+      }, {
+        'binutils_version%': 0,
+      }],
       # The version of GCC in use, set later in platforms that use GCC and have
       # not explicitly chosen to build with clang. Currently, this means all
       # platforms except Windows, Mac and iOS.
@@ -1356,15 +1379,12 @@
                 'gcc_version%': 46,
               }],
             ],
-            'binutils_version%': 222,
           }, {
             'gcc_version%': '<!(python <(DEPTH)/build/compiler_version.py)',
-            'binutils_version%': '<!(python <(DEPTH)/build/compiler_version.py assembler)',
           }],
         ],
       }, {
         'gcc_version%': 0,
-        'binutils_version%': 0,
       }],
       ['OS=="win" and "<!(python <(DEPTH)/build/dir_exists.py <(windows_sdk_default_path))"=="True"', {
         'windows_sdk_path%': '<(windows_sdk_default_path)',
@@ -3838,13 +3858,15 @@
             ],
           }],
           ['linux_use_gold_binary==1', {
+	    # Put our binutils, which contains gold in the search path. We pass
+	    # the path to gold to the compiler. gyp leaves unspecified what the
+	    # cwd is when running the compiler, so the normal gyp path-munging
+	    # fails us. This hack gets the right path.
+            'cflags': [
+              '-B<!(cd <(DEPTH) && pwd -P)/<(binutils_dir)/bin',
+            ],
             'ldflags': [
-              # Put our gold binary in the search path for the linker.
-              # We pass the path to gold to the compiler.  gyp leaves
-              # unspecified what the cwd is when running the compiler,
-              # so the normal gyp path-munging fails us.  This hack
-              # gets the right path.
-              '-B<!(cd <(DEPTH) && pwd -P)/third_party/gold',
+              '-B<!(cd <(DEPTH) && pwd -P)/<(binutils_dir)/bin',
             ],
           }],
         ],