Update v8 to 1.3.2, same as chrome. That version has a fix for Linux.

DEPS_gyp

 vars = {
   "chromium_trunk": "http://src.chromium.org/svn/trunk",
   "nixysa_rev": "29",
   "chromium_rev": "21287",
   "o3d_code_rev": "109",
   "skia_rev": "279",
   "gyp_rev": "563",
   "gtest_rev": "267",
   "gflags_rev": "30",
   "breakpad_rev": "346",
-  "v8_rev": "2507",
+  "v8_rev": "2624",
   "icu38_rev": "20192",
 }
 
 deps = {
   "o3d/o3d_assets":
     "http://o3d.googlecode.com/svn/trunk/googleclient/o3d_assets@" + Var("o3d_code_rev"),
 
   "third_party/antlr3":
     "http://o3d.googlecode.com/svn/trunk/googleclient/third_party/antlr3@" + Var("o3d_code_rev"),
 
@@ skipping 47 matching lines @@
   "third_party/libjpeg":
     Var("chromium_trunk") + "/src/third_party/libjpeg@" + Var("chromium_rev"),
 
   "third_party/libpng":
     Var("chromium_trunk") + "/src/third_party/libpng@" + Var("chromium_rev"),
 
   "third_party/zlib":
     Var("chromium_trunk") + "/src/third_party/zlib@" + Var("chromium_rev"),
 
   "v8":
-    "http://v8.googlecode.com/svn/branches/1.2@" + Var("v8_rev"),
+    "http://v8.googlecode.com/svn/trunk@" + Var("v8_rev"),
 
   "testing":
     Var("chromium_trunk") + "/src/testing@" + Var("chromium_rev"),
 
   "skia":
     Var("chromium_trunk") + "/src/skia@" + Var("chromium_rev"),
 
   "breakpad":
     Var("chromium_trunk") + "/src/breakpad@" + Var("chromium_rev"),
 
@@ skipping 45 matching lines @@
   },
 }
 
 hooks = [
   {
     # A change to a .gyp, .gypi, or to GYP itself shound run the generator.
     "pattern": "\\.gypi?$|[/\\\\]src[/\\\\]tools[/\\\\]gyp[/\\\\]",
     "action": ["python", "tools/gyp/gyp", "o3d/build/all.gyp", "--depth", ".."],
   },
 ]