Adding in new software construction toolkit version.

site_scons/site_tools/replicate.py

 #!/usr/bin/python2.4
 # Copyright 2008, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
@@ skipping 87 matching lines @@
           # match dot files, also glob('.*').
           dest_nodes += env.Replicate(
               target_name, [s.abspath + '/*', s.abspath + '/.*'],
               REPLICATE_REPLACE=replace_list)
         else:
           # Apply replacement strings, if any
           for r in replace_list:
             target_name = re.sub(r[0], r[1], target_name)
           target = env.File(target_name)
           if (target.has_builder()
+              and hasattr(target.get_builder(), 'name')
               and target.get_builder().name == 'InstallBuilder'
               and target.sources == [s]):
             # Already installed that file, so pass through the destination node
+            # TODO(rspangler): Is there a better way to determine if this is a
+            # duplicate install?
             dest_nodes += [target]
           else:
             dest_nodes += env.InstallAs(target_name, s)
 
   # Return list of destination nodes
   return dest_nodes
 
 
 def generate(env):
   # NOTE: SCons requires the use of this name, which fails gpylint.
   """SCons entry point for this tool."""
 
   env.AddMethod(Replicate)