Remove execute bit from binaries install in the toolchain

lib/naclports/source_package.py

 # Copyright (c) 2014 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import contextlib
 import os
 import re
 import subprocess
 import sys
 import tempfile
@@ skipping 264 matching lines @@
         from_source = True
 
     if from_source:
       self.Build(build_deps, force)
 
     if self.IsAnyVersionInstalled():
       installed_pkg = self.GetInstalledPackage()
       installed_pkg.LogStatus('Uninstalling existing')
       installed_pkg.DoUninstall()
 
-    binary_package.BinaryPackage(package_file).Install()
+    binary_package.BinaryPackage(package_file).Install(force)
 
   def GetInstalledPackage(self):
     return package.CreateInstalledPackage(self.NAME, self.config)
 
   def CreatePkgFile(self):
     """Create and pkg file for use with the FreeBSD pkg tool.
 
     This step is designed to run after the build scripts and will
     package up any files published by the PublishByArchForDevEnv
     step.
@@ skipping 474 matching lines @@
   if os.path.isdir(package_name):
     return SourcePackage(package_name, config)
 
   for subdir in DEFAULT_LOCATIONS:
     pkg_root = os.path.join(paths.NACLPORTS_ROOT, subdir, package_name)
     info = os.path.join(pkg_root, 'pkg_info')
     if os.path.exists(info):
       return SourcePackage(pkg_root, config)
 
   raise Error("Package not found: %s" % package_name)