Imported Upstream version 2.4.0upstream/2.4.0

192 files changed, 1334 insertions, 700 deletions

diff --git a/engine/SCons/Action.py b/engine/SCons/Action.py
index 11fd5f7..7acde46 100644
--- a/engine/SCons/Action.py
+++ b/engine/SCons/Action.py
@@ -97,7 +97,7 @@ way for wrapping up the functions.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Action.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Action.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import dis
 import os
@@ -540,7 +540,7 @@ class _ActionAction(ActionBase):
         if chdir:
             save_cwd = os.getcwd()
             try:
-                chdir = str(chdir.abspath)
+                chdir = str(chdir.get_abspath())
             except AttributeError:
                 if not is_String(chdir):
                     if executor:
diff --git a/engine/SCons/Builder.py b/engine/SCons/Builder.py
index 9231d94..4c68d5c 100644
--- a/engine/SCons/Builder.py
+++ b/engine/SCons/Builder.py
@@ -97,7 +97,7 @@ There are the following methods for internal use within this module:
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Builder.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Builder.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import collections
 
@@ -352,11 +352,6 @@ class BuilderBase(object):
     nodes (files) from input nodes (files).
     """
 
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
-    memoizer_counters = []
-
     def __init__(self,  action = None,
                         prefix = '',
                         suffix = '',
@@ -758,8 +753,7 @@ class BuilderBase(object):
     def _get_src_builders_key(self, env):
         return id(env)
 
-    memoizer_counters.append(SCons.Memoize.CountDict('get_src_builders', _get_src_builders_key))
-
+    @SCons.Memoize.CountDictCall(_get_src_builders_key)
     def get_src_builders(self, env):
         """
         Returns the list of source Builders for this Builder.
@@ -795,8 +789,7 @@ class BuilderBase(object):
     def _subst_src_suffixes_key(self, env):
         return id(env)
 
-    memoizer_counters.append(SCons.Memoize.CountDict('subst_src_suffixes', _subst_src_suffixes_key))
-
+    @SCons.Memoize.CountDictCall(_subst_src_suffixes_key)
     def subst_src_suffixes(self, env):
         """
         The suffix list may contain construction variable expansions,
diff --git a/engine/SCons/CacheDir.py b/engine/SCons/CacheDir.py
index 1e100c1..9e3ec6b 100644
--- a/engine/SCons/CacheDir.py
+++ b/engine/SCons/CacheDir.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/CacheDir.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/CacheDir.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """
 CacheDir support
@@ -50,11 +50,11 @@ def CacheRetrieveFunc(target, source, env):
     cd.CacheDebug('CacheRetrieve(%s):  retrieving from %s\n', t, cachefile)
     if SCons.Action.execute_actions:
         if fs.islink(cachefile):
-            fs.symlink(fs.readlink(cachefile), t.path)
+            fs.symlink(fs.readlink(cachefile), t.get_internal_path())
         else:
-            env.copy_from_cache(cachefile, t.path)
+            env.copy_from_cache(cachefile, t.get_internal_path())
         st = fs.stat(cachefile)
-        fs.chmod(t.path, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
+        fs.chmod(t.get_internal_path(), stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
     return 0
 
 def CacheRetrieveString(target, source, env):
@@ -63,7 +63,7 @@ def CacheRetrieveString(target, source, env):
     cd = env.get_CacheDir()
     cachedir, cachefile = cd.cachepath(t)
     if t.fs.exists(cachefile):
-        return "Retrieved `%s' from cache" % t.path
+        return "Retrieved `%s' from cache" % t.get_internal_path()
     return None
 
 CacheRetrieve = SCons.Action.Action(CacheRetrieveFunc, CacheRetrieveString)
@@ -106,12 +106,12 @@ def CachePushFunc(target, source, env):
                 raise SCons.Errors.EnvironmentError(msg)
 
     try:
-        if fs.islink(t.path):
-            fs.symlink(fs.readlink(t.path), tempfile)
+        if fs.islink(t.get_internal_path()):
+            fs.symlink(fs.readlink(t.get_internal_path()), tempfile)
         else:
-            fs.copy2(t.path, tempfile)
+            fs.copy2(t.get_internal_path(), tempfile)
         fs.rename(tempfile, cachefile)
-        st = fs.stat(t.path)
+        st = fs.stat(t.get_internal_path())
         fs.chmod(cachefile, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
     except EnvironmentError:
         # It's possible someone else tried writing the file at the
diff --git a/engine/SCons/Debug.py b/engine/SCons/Debug.py
index 8adf7ca..0aa077d 100644
--- a/engine/SCons/Debug.py
+++ b/engine/SCons/Debug.py
@@ -28,12 +28,13 @@ needed by most users.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Debug.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Debug.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import sys
 import time
 import weakref
+import inspect
 
 # Global variable that gets set to 'True' by the Main script,
 # when the creation of class instances should get tracked.
@@ -46,7 +47,12 @@ def logInstanceCreation(instance, name=None):
         name = instance.__class__.__name__
     if name not in tracked_classes:
         tracked_classes[name] = []
-    tracked_classes[name].append(weakref.ref(instance))
+    if hasattr(instance, '__dict__'):
+        tracked_classes[name].append(weakref.ref(instance))
+    else:
+        # weakref doesn't seem to work when the instance
+        # contains only slots...
+        tracked_classes[name].append(instance)
 
 def string_to_classes(s):
     if s == '*':
@@ -66,7 +72,10 @@ def listLoggedInstances(classes, file=sys.stdout):
     for classname in string_to_classes(classes):
         file.write('\n%s:\n' % classname)
         for ref in tracked_classes[classname]:
-            obj = ref()
+            if inspect.isclass(ref):
+                obj = ref()
+            else:
+                obj = ref
             if obj is not None:
                 file.write('    %s\n' % repr(obj))
 
diff --git a/engine/SCons/Defaults.py b/engine/SCons/Defaults.py
index 8a3fbb6..b4cbb9a 100644
--- a/engine/SCons/Defaults.py
+++ b/engine/SCons/Defaults.py
@@ -33,7 +33,7 @@ from distutils.msvccompiler.
 #
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Defaults.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Defaults.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 
 import os
diff --git a/engine/SCons/Environment.py b/engine/SCons/Environment.py
index f5f9b6a..865c821 100644
--- a/engine/SCons/Environment.py
+++ b/engine/SCons/Environment.py
@@ -31,7 +31,7 @@ Environment
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Environment.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Environment.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 
 import copy
@@ -365,9 +365,6 @@ class SubstitutionEnvironment(object):
     class actually becomes useful.)
     """
 
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
     def __init__(self, **kw):
         """Initialization of an underlying SubstitutionEnvironment class.
         """
@@ -902,8 +899,6 @@ class Base(SubstitutionEnvironment):
     Environment.
     """
 
-    memoizer_counters = []
-
     #######################################################################
     # This is THE class for interacting with the SCons build engine,
     # and it contains a lot of stuff, so we're going to try to keep this
@@ -1071,8 +1066,7 @@ class Base(SubstitutionEnvironment):
             factory = getattr(self.fs, name)
         return factory
 
-    memoizer_counters.append(SCons.Memoize.CountValue('_gsm'))
-
+    @SCons.Memoize.CountMethodCall
     def _gsm(self):
         try:
             return self._memo['_gsm']
@@ -1802,7 +1796,7 @@ class Base(SubstitutionEnvironment):
         self.Replace(**kw)
 
     def _find_toolpath_dir(self, tp):
-        return self.fs.Dir(self.subst(tp)).srcnode().abspath
+        return self.fs.Dir(self.subst(tp)).srcnode().get_abspath()
 
     def Tool(self, tool, toolpath=None, **kw):
         if SCons.Util.is_String(tool):
diff --git a/engine/SCons/Errors.py b/engine/SCons/Errors.py
index 585c6d0..998a70d 100644
--- a/engine/SCons/Errors.py
+++ b/engine/SCons/Errors.py
@@ -28,7 +28,7 @@ and user errors in SCons.
 
 """
 
-__revision__ = "src/engine/SCons/Errors.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Errors.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Executor.py b/engine/SCons/Executor.py
index 062bc8d..3211fd1 100644
--- a/engine/SCons/Executor.py
+++ b/engine/SCons/Executor.py
@@ -27,7 +27,7 @@ Nodes.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Executor.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Executor.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import collections
 
@@ -40,6 +40,10 @@ import SCons.Memoize
 class Batch(object):
     """Remembers exact association between targets
     and sources of executor."""
+    
+    __slots__ = ('targets',
+                 'sources')
+    
     def __init__(self, targets=[], sources=[]):
         self.targets = targets
         self.sources = sources
@@ -109,6 +113,48 @@ def rfile(node):
         return rfile()
 
 
+def execute_nothing(obj, target, kw):
+    return 0
+
+def execute_action_list(obj, target, kw):
+    """Actually execute the action list."""
+    env = obj.get_build_env()
+    kw = obj.get_kw(kw)
+    status = 0
+    for act in obj.get_action_list():
+        #args = (self.get_all_targets(), self.get_all_sources(), env)
+        args = ([], [], env)
+        status = act(*args, **kw)
+        if isinstance(status, SCons.Errors.BuildError):
+            status.executor = obj
+            raise status
+        elif status:
+            msg = "Error %s" % status
+            raise SCons.Errors.BuildError(
+                errstr=msg, 
+                node=obj.batches[0].targets,
+                executor=obj, 
+                action=act)
+    return status
+
+_do_execute_map = {0 : execute_nothing,
+                   1 : execute_action_list}
+
+
+def execute_actions_str(obj):
+    env = obj.get_build_env()
+    return "\n".join([action.genstring(obj.get_all_targets(),
+                                       obj.get_all_sources(),
+                                       env)
+                      for action in obj.get_action_list()])
+
+def execute_null_str(obj):
+    return ''
+
+_execute_str_map = {0 : execute_null_str,
+                    1 : execute_actions_str}
+
+
 class Executor(object):
     """A class for controlling instances of executing an action.
 
@@ -117,10 +163,21 @@ class Executor(object):
     and sources for later processing as needed.
     """
 
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
-    memoizer_counters = []
+    __slots__ = ('pre_actions',
+                 'post_actions',
+                 'env',
+                 'overridelist',
+                 'batches',
+                 'builder_kw',
+                 '_memo',
+                 'lvars',
+                 '_changed_sources_list',
+                 '_changed_targets_list',
+                 '_unchanged_sources_list',
+                 '_unchanged_targets_list',
+                 'action_list',
+                 '_do_execute',
+                 '_execute_str')
 
     def __init__(self, action, env=None, overridelist=[{}],
                  targets=[], sources=[], builder_kw={}):
@@ -135,6 +192,8 @@ class Executor(object):
         else:
             self.batches = []
         self.builder_kw = builder_kw
+        self._do_execute = 1
+        self._execute_str = 1
         self._memo = {}
 
     def get_lvars(self):
@@ -284,8 +343,7 @@ class Executor(object):
             result.extend(target.side_effects)
         return result
 
-    memoizer_counters.append(SCons.Memoize.CountValue('get_build_env'))
-
+    @SCons.Memoize.CountMethodCall
     def get_build_env(self):
         """Fetch or create the appropriate build Environment
         for this Executor.
@@ -330,36 +388,12 @@ class Executor(object):
         result['executor'] = self
         return result
 
-    def do_nothing(self, target, kw):
-        return 0
-
-    def do_execute(self, target, kw):
-        """Actually execute the action list."""
-        env = self.get_build_env()
-        kw = self.get_kw(kw)
-        status = 0
-        for act in self.get_action_list():
-            #args = (self.get_all_targets(), self.get_all_sources(), env)
-            args = ([], [], env)
-            status = act(*args, **kw)
-            if isinstance(status, SCons.Errors.BuildError):
-                status.executor = self
-                raise status
-            elif status:
-                msg = "Error %s" % status
-                raise SCons.Errors.BuildError(
-                    errstr=msg, 
-                    node=self.batches[0].targets,
-                    executor=self, 
-                    action=act)
-        return status
-
     # use extra indirection because with new-style objects (Python 2.2
     # and above) we can't override special methods, and nullify() needs
     # to be able to do this.
 
     def __call__(self, target, **kw):
-        return self.do_execute(target, kw)
+        return _do_execute_map[self._do_execute](self, target, kw)
 
     def cleanup(self):
         self._memo = {}
@@ -403,24 +437,15 @@ class Executor(object):
 
     # another extra indirection for new-style objects and nullify...
 
-    def my_str(self):
-        env = self.get_build_env()
-        return "\n".join([action.genstring(self.get_all_targets(),
-                                           self.get_all_sources(),
-                                           env)
-                          for action in self.get_action_list()])
-
-
     def __str__(self):
-        return self.my_str()
+        return _execute_str_map[self._execute_str](self)
 
     def nullify(self):
         self.cleanup()
-        self.do_execute = self.do_nothing
-        self.my_str     = lambda: ''
-
-    memoizer_counters.append(SCons.Memoize.CountValue('get_contents'))
+        self._do_execute = 0
+        self._execute_str = 0
 
+    @SCons.Memoize.CountMethodCall
     def get_contents(self):
         """Fetch the signature contents.  This is the main reason this
         class exists, so we can compute this once and cache it regardless
@@ -493,8 +518,7 @@ class Executor(object):
     def _get_unignored_sources_key(self, node, ignore=()):
         return (node,) + tuple(ignore)
 
-    memoizer_counters.append(SCons.Memoize.CountDict('get_unignored_sources', _get_unignored_sources_key))
-
+    @SCons.Memoize.CountDictCall(_get_unignored_sources_key)
     def get_unignored_sources(self, node, ignore=()):
         key = (node,) + tuple(ignore)
         try:
@@ -579,6 +603,23 @@ class Null(object):
     disassociate Builders from Nodes entirely, so we're not
     going to worry about unit tests for this--at least for now.
     """
+    
+    __slots__ = ('pre_actions',
+                 'post_actions',
+                 'env',
+                 'overridelist',
+                 'batches',
+                 'builder_kw',
+                 '_memo',
+                 'lvars',
+                 '_changed_sources_list',
+                 '_changed_targets_list',
+                 '_unchanged_sources_list',
+                 '_unchanged_targets_list',
+                 'action_list',
+                 '_do_execute',
+                 '_execute_str')
+    
     def __init__(self, *args, **kw):
         if SCons.Debug.track_instances: logInstanceCreation(self, 'Executor.Null')
         self.batches = [Batch(kw['targets'][:], [])]
diff --git a/engine/SCons/Job.py b/engine/SCons/Job.py
index cdcd38e..60aa0ae 100644
--- a/engine/SCons/Job.py
+++ b/engine/SCons/Job.py
@@ -29,7 +29,7 @@ stop, and wait on jobs.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Job.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Job.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.compat
 
diff --git a/engine/SCons/Memoize.py b/engine/SCons/Memoize.py
index 2557faf..77a8e16 100644
--- a/engine/SCons/Memoize.py
+++ b/engine/SCons/Memoize.py
@@ -21,21 +21,21 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Memoize.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Memoize.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Memoizer
 
-A metaclass implementation to count hits and misses of the computed
+A decorator-based implementation to count hits and misses of the computed
 values that various methods cache in memory.
 
 Use of this modules assumes that wrapped methods be coded to cache their
-values in a consistent way.  Here is an example of wrapping a method
-that returns a computed value, with no input parameters:
+values in a consistent way. In particular, it requires that the class uses a
+dictionary named "_memo" to store the cached values.
 
-    memoizer_counters = []                                      # Memoization
-
-    memoizer_counters.append(SCons.Memoize.CountValue('foo'))   # Memoization
+Here is an example of wrapping a method that returns a computed value,
+with no input parameters:
 
+    @SCons.Memoize.CountMethodCall
     def foo(self):
 
         try:                                                    # Memoization
@@ -55,8 +55,7 @@ based on one or more input arguments:
     def _bar_key(self, argument):                               # Memoization
         return argument                                         # Memoization
 
-    memoizer_counters.append(SCons.Memoize.CountDict('bar', _bar_key)) # Memoization
-
+    @SCons.Memoize.CountDictCall(_bar_key)
     def bar(self, argument):
 
         memo_key = argument                                     # Memoization
@@ -77,10 +76,6 @@ based on one or more input arguments:
 
         return result
 
-At one point we avoided replicating this sort of logic in all the methods
-by putting it right into this module, but we've moved away from that at
-present (see the "Historical Note," below.).
-
 Deciding what to cache is tricky, because different configurations
 can have radically different performance tradeoffs, and because the
 tradeoffs involved are often so non-obvious.  Consequently, deciding
@@ -102,51 +97,37 @@ cache return values from a method that's being called a lot:
         input arguments, you don't need to use all of the arguments
         if some of them don't affect the return values.
 
-Historical Note:  The initial Memoizer implementation actually handled
-the caching of values for the wrapped methods, based on a set of generic
-algorithms for computing hashable values based on the method's arguments.
-This collected caching logic nicely, but had two drawbacks:
-
-    Running arguments through a generic key-conversion mechanism is slower
-    (and less flexible) than just coding these things directly.  Since the
-    methods that need memoized values are generally performance-critical,
-    slowing them down in order to collect the logic isn't the right
-    tradeoff.
-
-    Use of the memoizer really obscured what was being called, because
-    all the memoized methods were wrapped with re-used generic methods.
-    This made it more difficult, for example, to use the Python profiler
-    to figure out how to optimize the underlying methods.
 """
 
-import types
-
 # A flag controlling whether or not we actually use memoization.
 use_memoizer = None
 
-CounterList = []
+# Global list of counter objects
+CounterList = {}
 
 class Counter(object):
     """
     Base class for counting memoization hits and misses.
 
-    We expect that the metaclass initialization will have filled in
-    the .name attribute that represents the name of the function
-    being counted.
+    We expect that the initialization in a matching decorator will
+    fill in the correct class name and method name that represents
+    the name of the function being counted.
     """
-    def __init__(self, method_name):
+    def __init__(self, cls_name, method_name):
         """
         """
+        self.cls_name = cls_name
         self.method_name = method_name
         self.hit = 0
         self.miss = 0
-        CounterList.append(self)
+    def key(self):
+        return self.cls_name+'.'+self.method_name
     def display(self):
         fmt = "    %7d hits %7d misses    %s()"
-        print fmt % (self.hit, self.miss, self.name)
+        print fmt % (self.hit, self.miss, self.key())
     def __cmp__(self, other):
         try:
-            return cmp(self.name, other.name)
+            return cmp(self.key(), other.key())
         except AttributeError:
             return 0
 
@@ -154,45 +135,39 @@ class CountValue(Counter):
     """
     A counter class for simple, atomic memoized values.
 
-    A CountValue object should be instantiated in a class for each of
+    A CountValue object should be instantiated in a decorator for each of
     the class's methods that memoizes its return value by simply storing
     the return value in its _memo dictionary.
-
-    We expect that the metaclass initialization will fill in the
-    .underlying_method attribute with the method that we're wrapping.
-    We then call the underlying_method method after counting whether
-    its memoized value has already been set (a hit) or not (a miss).
     """
-    def __call__(self, *args, **kw):
+    def count(self, *args, **kw):
+        """ Counts whether the memoized value has already been
+            set (a hit) or not (a miss).
+        """
         obj = args[0]
         if self.method_name in obj._memo:
             self.hit = self.hit + 1
         else:
             self.miss = self.miss + 1
-        return self.underlying_method(*args, **kw)
 
 class CountDict(Counter):
     """
     A counter class for memoized values stored in a dictionary, with
     keys based on the method's input arguments.
 
-    A CountDict object is instantiated in a class for each of the
+    A CountDict object is instantiated in a decorator for each of the
     class's methods that memoizes its return value in a dictionary,
     indexed by some key that can be computed from one or more of
     its input arguments.
-
-    We expect that the metaclass initialization will fill in the
-    .underlying_method attribute with the method that we're wrapping.
-    We then call the underlying_method method after counting whether the
-    computed key value is already present in the memoization dictionary
-    (a hit) or not (a miss).
     """
-    def __init__(self, method_name, keymaker):
+    def __init__(self, cls_name, method_name, keymaker):
         """
         """
-        Counter.__init__(self, method_name)
+        Counter.__init__(self, cls_name, method_name)
         self.keymaker = keymaker
-    def __call__(self, *args, **kw):
+    def count(self, *args, **kw):
+        """ Counts whether the computed key value is already present
+           in the memoization dictionary (a hit) or not (a miss).
+        """
         obj = args[0]
         try:
             memo_dict = obj._memo[self.method_name]
@@ -204,39 +179,65 @@ class CountDict(Counter):
                 self.hit = self.hit + 1
             else:
                 self.miss = self.miss + 1
-        return self.underlying_method(*args, **kw)
-
-class Memoizer(object):
-    """Object which performs caching of method calls for its 'primary'
-    instance."""
-
-    def __init__(self):
-        pass
 
 def Dump(title=None):
+    """ Dump the hit/miss count for all the counters
+        collected so far.
+    """
     if title:
         print title
-    CounterList.sort()
-    for counter in CounterList:
-        counter.display()
-
-class Memoized_Metaclass(type):
-    def __init__(cls, name, bases, cls_dict):
-        super(Memoized_Metaclass, cls).__init__(name, bases, cls_dict)
-
-        for counter in cls_dict.get('memoizer_counters', []):
-            method_name = counter.method_name
-
-            counter.name = cls.__name__ + '.' + method_name
-            counter.underlying_method = cls_dict[method_name]
-
-            replacement_method = types.MethodType(counter, None, cls)
-            setattr(cls, method_name, replacement_method)
+    for counter in sorted(CounterList):
+        CounterList[counter].display()
 
 def EnableMemoization():
     global use_memoizer
     use_memoizer = 1
 
+def CountMethodCall(fn):
+    """ Decorator for counting memoizer hits/misses while retrieving
+        a simple value in a class method. It wraps the given method
+        fn and uses a CountValue object to keep track of the
+        caching statistics.
+        Wrapping gets enabled by calling EnableMemoization().
+    """
+    if use_memoizer:
+        def wrapper(self, *args, **kwargs):
+            global CounterList
+            key = self.__class__.__name__+'.'+fn.__name__
+            if key not in CounterList:
+                CounterList[key] = CountValue(self.__class__.__name__, fn.__name__)
+            CounterList[key].count(self, *args, **kwargs)
+            return fn(self, *args, **kwargs)
+        wrapper.__name__= fn.__name__
+        return wrapper
+    else:
+        return fn
+
+def CountDictCall(keyfunc):
+    """ Decorator for counting memoizer hits/misses while accessing
+        dictionary values with a key-generating function. Like
+        CountMethodCall above, it wraps the given method
+        fn and uses a CountDict object to keep track of the
+        caching statistics. The dict-key function keyfunc has to
+        get passed in the decorator call and gets stored in the
+        CountDict instance.
+        Wrapping gets enabled by calling EnableMemoization().
+    """
+    def decorator(fn):
+        if use_memoizer:
+            def wrapper(self, *args, **kwargs):
+                global CounterList
+                key = self.__class__.__name__+'.'+fn.__name__
+                if key not in CounterList:
+                    CounterList[key] = CountDict(self.__class__.__name__, fn.__name__, keyfunc)
+                CounterList[key].count(self, *args, **kwargs)
+                return fn(self, *args, **kwargs)
+            wrapper.__name__= fn.__name__
+            return wrapper
+        else:
+            return fn
+    return decorator
+
 # Local Variables:
 # tab-width:4
 # indent-tabs-mode:nil
diff --git a/engine/SCons/Node/Alias.py b/engine/SCons/Node/Alias.py
index 0bd6422..7e13b00 100644
--- a/engine/SCons/Node/Alias.py
+++ b/engine/SCons/Node/Alias.py
@@ -30,7 +30,7 @@ This creates a hash of global Aliases (dummy targets).
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Node/Alias.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Node/Alias.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import collections
 
@@ -56,13 +56,47 @@ class AliasNameSpace(collections.UserDict):
             return None
 
 class AliasNodeInfo(SCons.Node.NodeInfoBase):
-    current_version_id = 1
+    __slots__ = ('csig',)
+    current_version_id = 2
     field_list = ['csig']
     def str_to_node(self, s):
         return default_ans.Alias(s)
 
+    def __getstate__(self):
+        """
+        Return all fields that shall be pickled. Walk the slots in the class
+        hierarchy and add those to the state dictionary. If a '__dict__' slot is
+        available, copy all entries to the dictionary. Also include the version
+        id, which is fixed for all instances of a class.
+        """
+        state = getattr(self, '__dict__', {}).copy()
+        for obj in type(self).mro():
+            for name in getattr(obj,'__slots__',()):
+                if hasattr(self, name):
+                    state[name] = getattr(self, name)
+
+        state['_version_id'] = self.current_version_id
+        try:
+            del state['__weakref__']
+        except KeyError:
+            pass
+
+        return state
+
+    def __setstate__(self, state):
+        """
+        Restore the attributes from a pickled state.
+        """
+        # TODO check or discard version
+        del state['_version_id']
+        for key, value in state.items():
+            if key not in ('__weakref__',):
+                setattr(self, key, value)
+          
+
 class AliasBuildInfo(SCons.Node.BuildInfoBase):
-    current_version_id = 1
+    __slots__ = ()
+    current_version_id = 2
 
 class Alias(SCons.Node.Node):
 
@@ -72,7 +106,9 @@ class Alias(SCons.Node.Node):
     def __init__(self, name):
         SCons.Node.Node.__init__(self)
         self.name = name
-
+        self.changed_since_last_build = 1
+        self.store_info = 0
+        
     def str_for_display(self):
         return '"' + self.__str__() + '"'
 
@@ -105,13 +141,6 @@ class Alias(SCons.Node.Node):
     #
     #
 
-    def changed_since_last_build(self, target, prev_ni):
-        cur_csig = self.get_csig()
-        try:
-            return cur_csig != prev_ni.csig
-        except AttributeError:
-            return 1
-
     def build(self):
         """A "builder" for aliases."""
         pass
diff --git a/engine/SCons/Node/FS.py b/engine/SCons/Node/FS.py
index 8d71f7e..b6a1bb5 100644
--- a/engine/SCons/Node/FS.py
+++ b/engine/SCons/Node/FS.py
@@ -32,7 +32,7 @@ that can be used by scripts or modules looking for the canonical default.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Node/FS.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Node/FS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import fnmatch
 import os
@@ -56,10 +56,23 @@ import SCons.Warnings
 
 from SCons.Debug import Trace
 
-do_store_info = True
 print_duplicate = 0
 
 
+def sconsign_none(node):
+    raise NotImplementedError
+
+def sconsign_dir(node):
+    """Return the .sconsign file info for this directory,
+    creating it first if necessary."""
+    if not node._sconsign:
+        import SCons.SConsign
+        node._sconsign = SCons.SConsign.ForDirectory(node)
+    return node._sconsign
+
+_sconsign_map = {0 : sconsign_none,
+                 1 : sconsign_dir}
+
 class EntryProxyAttributeError(AttributeError):
     """
     An AttributeError subclass for recording and displaying the name
@@ -268,8 +281,8 @@ def LinkFunc(target, source, env):
     # who want to move their soft-linked src-trees around. Those
     # people should use the 'hard-copy' mode, softlinks cannot be
     # used for that; at least I have no idea how ...
-    src = source[0].abspath
-    dest = target[0].abspath
+    src = source[0].get_abspath()
+    dest = target[0].get_abspath()
     dir, file = os.path.split(dest)
     if dir and not target[0].fs.isdir(dir):
         os.makedirs(dir)
@@ -302,7 +315,7 @@ LocalCopy = SCons.Action.Action(LinkFunc, LocalString)
 
 def UnlinkFunc(target, source, env):
     t = target[0]
-    t.fs.unlink(t.abspath)
+    t.fs.unlink(t.get_abspath())
     return 0
 
 Unlink = SCons.Action.Action(UnlinkFunc, None)
@@ -310,7 +323,7 @@ Unlink = SCons.Action.Action(UnlinkFunc, None)
 def MkdirFunc(target, source, env):
     t = target[0]
     if not t.exists():
-        t.fs.mkdir(t.abspath)
+        t.fs.mkdir(t.get_abspath())
     return 0
 
 Mkdir = SCons.Action.Action(MkdirFunc, None, presub=None)
@@ -403,7 +416,7 @@ def do_diskcheck_match(node, predicate, errorfmt):
     except (AttributeError, KeyError):
         pass
     if result:
-        raise TypeError(errorfmt % node.abspath)
+        raise TypeError(errorfmt % node.get_abspath())
 
 def ignore_diskcheck_match(node, predicate, errorfmt):
     pass
@@ -573,7 +586,20 @@ class Base(SCons.Node.Node):
     object identity comparisons.
     """
 
-    memoizer_counters = []
+    __slots__ = ['name',
+                 'fs',
+                 '_abspath',
+                 '_labspath',
+                 '_path',
+                 '_tpath',
+                 '_path_elements',
+                 'dir',
+                 'cwd',
+                 'duplicate',
+                 '_local',
+                 'sbuilder',
+                 '_proxy',
+                 '_func_sconsign']
 
     def __init__(self, name, directory, fs):
         """Initialize a generic Node.FS.Base object.
@@ -591,27 +617,26 @@ class Base(SCons.Node.Node):
         #: Filename with extension as it was specified when the object was
         #: created; to obtain filesystem path, use Python str() function
         self.name = SCons.Util.silent_intern(name)
-        #: Cached filename extension
-        self.suffix = SCons.Util.silent_intern(SCons.Util.splitext(name)[1])
         self.fs = fs #: Reference to parent Node.FS object
 
         assert directory, "A directory must be provided"
 
-        self.abspath = SCons.Util.silent_intern(directory.entry_abspath(name))
-        self.labspath = SCons.Util.silent_intern(directory.entry_labspath(name))
-        if directory.path == '.':
-            self.path = SCons.Util.silent_intern(name)
-        else:
-            self.path = SCons.Util.silent_intern(directory.entry_path(name))
-        if directory.tpath == '.':
-            self.tpath = SCons.Util.silent_intern(name)
-        else:
-            self.tpath = SCons.Util.silent_intern(directory.entry_tpath(name))
-        self.path_elements = directory.path_elements + [self]
+        self._abspath = None
+        self._labspath = None
+        self._path = None
+        self._tpath = None
+        self._path_elements = None
 
         self.dir = directory
         self.cwd = None # will hold the SConscript directory for target nodes
         self.duplicate = directory.duplicate
+        self.changed_since_last_build = 2
+        self._func_sconsign = 0
+        self._func_exists = 2
+        self._func_rexists = 2
+        self._func_get_contents = 0
+        self._func_target_from_source = 1
+        self.store_info = 1
 
     def str_for_display(self):
         return '"' + self.__str__() + '"'
@@ -624,17 +649,38 @@ class Base(SCons.Node.Node):
         if isinstance(self, klass) or klass is Entry:
             return
         raise TypeError("Tried to lookup %s '%s' as a %s." %\
-              (self.__class__.__name__, self.path, klass.__name__))
+              (self.__class__.__name__, self.get_internal_path(), klass.__name__))
 
     def get_dir(self):
         return self.dir
 
     def get_suffix(self):
-        return self.suffix
+        return SCons.Util.splitext(self.name)[1]
 
     def rfile(self):
         return self
 
+    def __getattr__(self, attr):
+        """ Together with the node_bwcomp dict defined below,
+            this method provides a simple backward compatibility
+            layer for the Node attributes 'abspath', 'labspath',
+            'path', 'tpath', 'suffix' and 'path_elements'. These Node
+            attributes used to be directly available in v2.3 and earlier, but
+            have been replaced by getter methods that initialize the
+            single variables lazily when required, in order to save memory.
+            The redirection to the getters lets older Tools and
+            SConstruct continue to work without any additional changes,
+            fully transparent to the user. 
+            Note, that __getattr__ is only called as fallback when the
+            requested attribute can't be found, so there should be no
+            speed performance penalty involved for standard builds.
+        """
+        if attr in node_bwcomp:
+            return node_bwcomp[attr](self)
+        
+        raise AttributeError("%r object has no attribute %r" %
+                         (self.__class__, attr))
+
     def __str__(self):
         """A Node.FS.Base object's string representation is its path
         name."""
@@ -643,8 +689,7 @@ class Base(SCons.Node.Node):
             return self._save_str()
         return self._get_str()
 
-    memoizer_counters.append(SCons.Memoize.CountValue('_save_str'))
-
+    @SCons.Memoize.CountMethodCall
     def _save_str(self):
         try:
             return self._memo['_save_str']
@@ -681,21 +726,20 @@ class Base(SCons.Node.Node):
 
     rstr = __str__
 
-    memoizer_counters.append(SCons.Memoize.CountValue('stat'))
-
+    @SCons.Memoize.CountMethodCall
     def stat(self):
         try: return self._memo['stat']
         except KeyError: pass
-        try: result = self.fs.stat(self.abspath)
+        try: result = self.fs.stat(self.get_abspath())
         except os.error: result = None
         self._memo['stat'] = result
         return result
 
     def exists(self):
-        return self.stat() is not None
+        return SCons.Node._exists_map[self._func_exists](self)
 
     def rexists(self):
-        return self.rfile().exists()
+        return SCons.Node._rexists_map[self._func_rexists](self)
 
     def getmtime(self):
         st = self.stat()
@@ -717,7 +761,7 @@ class Base(SCons.Node.Node):
 
     if hasattr(os, 'symlink'):
         def islink(self):
-            try: st = self.fs.lstat(self.abspath)
+            try: st = self.fs.lstat(self.get_abspath())
             except os.error: return 0
             return stat.S_ISLNK(st[stat.ST_MODE])
     else:
@@ -752,7 +796,7 @@ class Base(SCons.Node.Node):
             dir = self.fs.getcwd()
         if self == dir:
             return '.'
-        path_elems = self.path_elements
+        path_elems = self.get_path_elements()
         pathname = ''
         try: i = path_elems.index(dir)
         except ValueError: 
@@ -785,7 +829,26 @@ class Base(SCons.Node.Node):
 
     def get_abspath(self):
         """Get the absolute path of the file."""
-        return self.abspath
+        return self.dir.entry_abspath(self.name)
+
+    def get_labspath(self):
+        """Get the absolute path of the file."""
+        return self.dir.entry_labspath(self.name)
+
+    def get_internal_path(self):
+        if self.dir._path == '.':
+            return self.name
+        else:
+            return self.dir.entry_path(self.name)
+        
+    def get_tpath(self):
+        if self.dir._tpath == '.':
+            return self.name
+        else:
+            return self.dir.entry_tpath(self.name)
+        
+    def get_path_elements(self):
+        return self.dir._path_elements + [self]
 
     def for_signature(self):
         # Return just our name.  Even an absolute path would not work,
@@ -811,13 +874,12 @@ class Base(SCons.Node.Node):
         files that need different behavior.  See Tool/swig.py for
         an example.
         """
-        return self.dir.Entry(prefix + splitext(self.name)[0] + suffix)
+        return SCons.Node._target_from_source_map[self._func_target_from_source](self, prefix, suffix, splitext)
 
     def _Rfindalldirs_key(self, pathlist):
         return pathlist
 
-    memoizer_counters.append(SCons.Memoize.CountDict('Rfindalldirs', _Rfindalldirs_key))
-
+    @SCons.Memoize.CountDictCall(_Rfindalldirs_key)
     def Rfindalldirs(self, pathlist):
         """
         Return all of the directories for a given path list, including
@@ -856,8 +918,7 @@ class Base(SCons.Node.Node):
         cwd = self.cwd or self.fs._cwd
         return cwd.Rfindalldirs(pathlist)
 
-    memoizer_counters.append(SCons.Memoize.CountValue('rentry'))
-
+    @SCons.Memoize.CountMethodCall
     def rentry(self):
         try:
             return self._memo['rentry']
@@ -878,6 +939,17 @@ class Base(SCons.Node.Node):
 
     def _glob1(self, pattern, ondisk=True, source=False, strings=False):
         return []
+    
+# Dict that provides a simple backward compatibility
+# layer for the Node attributes 'abspath', 'labspath',
+# 'path', 'tpath' and 'path_elements'.
+# @see Base.__getattr__ above
+node_bwcomp = {'abspath' : Base.get_abspath,
+               'labspath' : Base.get_labspath,
+               'path' : Base.get_internal_path,
+               'tpath' : Base.get_tpath,
+               'path_elements' : Base.get_path_elements,
+               'suffix' : Base.get_suffix}
 
 class Entry(Base):
     """This is the class for generic Node.FS entries--that is, things
@@ -887,6 +959,28 @@ class Entry(Base):
     time comes, and then call the same-named method in the transformed
     class."""
 
+    __slots__ = ['scanner_paths',
+                 'cachedir_csig',
+                 'cachesig',
+                 'repositories',
+                 'srcdir',
+                 'entries',
+                 'searched',
+                 '_sconsign',
+                 'variant_dirs',
+                 'root',
+                 'dirname',
+                 'on_disk_entries',
+                 'sccs_dir',
+                 'rcs_dir',
+                 'released_target_info',
+                 'contentsig']
+
+    def __init__(self, name, directory, fs):
+        Base.__init__(self, name, directory, fs)
+        self._func_exists = 3
+        self._func_get_contents = 1 
+
     def diskcheck_match(self):
         pass
 
@@ -917,7 +1011,7 @@ class Entry(Base):
                 self.__class__ = Dir
                 self._morph()
             elif must_exist:
-                msg = "No such file or directory: '%s'" % self.abspath
+                msg = "No such file or directory: '%s'" % self.get_abspath()
                 raise SCons.Errors.UserError(msg)
             else:
                 self.__class__ = File
@@ -939,17 +1033,7 @@ class Entry(Base):
     def get_contents(self):
         """Fetch the contents of the entry.  Returns the exact binary
         contents of the file."""
-        try:
-            self = self.disambiguate(must_exist=1)
-        except SCons.Errors.UserError:
-            # There was nothing on disk with which to disambiguate
-            # this entry.  Leave it as an Entry, but return a null
-            # string so calls to get_contents() in emitters and the
-            # like (e.g. in qt.py) don't have to disambiguate by hand
-            # or catch the exception.
-            return ''
-        else:
-            return self.get_contents()
+        return SCons.Node._get_contents_map[self._func_get_contents](self)
 
     def get_text_contents(self):
         """Fetch the decoded text contents of a Unicode encoded Entry.
@@ -989,10 +1073,7 @@ class Entry(Base):
     # to make various tests pass.
 
     def exists(self):
-        """Return if the Entry exists.  Check the file system to see
-        what we should turn into first.  Assume a file if there's no
-        directory."""
-        return self.disambiguate().exists()
+        return SCons.Node._exists_map[self._func_exists](self)
 
     def rel_path(self, other):
         d = self.disambiguate()
@@ -1003,9 +1084,6 @@ class Entry(Base):
     def new_ninfo(self):
         return self.disambiguate().new_ninfo()
 
-    def changed_since_last_build(self, target, prev_ni):
-        return self.disambiguate().changed_since_last_build(target, prev_ni)
-
     def _glob1(self, pattern, ondisk=True, source=False, strings=False):
         return self.disambiguate()._glob1(pattern, ondisk, source, strings)
 
@@ -1019,9 +1097,6 @@ _classEntry = Entry
 
 class LocalFS(object):
 
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
     # This class implements an abstraction layer for operations involving
     # a local file system.  Essentially, this wraps any function in
     # the os, os.path or shutil modules that we use to actually go do
@@ -1101,8 +1176,6 @@ class LocalFS(object):
 
 class FS(LocalFS):
 
-    memoizer_counters = []
-
     def __init__(self, path = None):
         """Initialize the Node.FS subsystem.
 
@@ -1128,8 +1201,8 @@ class FS(LocalFS):
         self.defaultDrive = _my_normcase(_my_splitdrive(self.pathTop)[0])
 
         self.Top = self.Dir(self.pathTop)
-        self.Top.path = '.'
-        self.Top.tpath = '.'
+        self.Top._path = '.'
+        self.Top._tpath = '.'
         self._cwd = self.Top
 
         DirNodeInfo.fs = self
@@ -1160,7 +1233,7 @@ class FS(LocalFS):
             if dir is not None:
                 self._cwd = dir
                 if change_os_dir:
-                    os.chdir(dir.abspath)
+                    os.chdir(dir.get_abspath())
         except OSError:
             self._cwd = curr
             raise
@@ -1249,9 +1322,9 @@ class FS(LocalFS):
             
             # The path is relative to the top-level SCons directory.
             if p in ('', '.'):
-                p = directory.labspath
+                p = directory.get_labspath()
             else:
-                p = directory.labspath + '/' + p
+                p = directory.get_labspath() + '/' + p
         else:
             if do_splitdrive:
                 drive, p = _my_splitdrive(p)
@@ -1285,9 +1358,9 @@ class FS(LocalFS):
                     directory = self._cwd
 
                 if p in ('', '.'):
-                    p = directory.labspath
+                    p = directory.get_labspath()
                 else:
-                    p = directory.labspath + '/' + p
+                    p = directory.get_labspath() + '/' + p
 
                 if drive:
                     root = self.get_root(drive)
@@ -1393,7 +1466,7 @@ class FS(LocalFS):
                 if start_dir.is_under(bd):
                     # If already in the build-dir location, don't reflect
                     return [orig], fmt % str(orig)
-                p = os.path.join(bd.path, *tail)
+                p = os.path.join(bd._path, *tail)
                 targets.append(self.Entry(p))
             tail = [dir.name] + tail
             dir = dir.up()
@@ -1412,8 +1485,9 @@ class FS(LocalFS):
         return cwd.glob(pathname, ondisk, source, strings, exclude)
 
 class DirNodeInfo(SCons.Node.NodeInfoBase):
+    __slots__ = ()
     # This should get reset by the FS initialization.
-    current_version_id = 1
+    current_version_id = 2
 
     fs = None
 
@@ -1425,11 +1499,12 @@ class DirNodeInfo(SCons.Node.NodeInfoBase):
             if drive:
                 root = self.fs.get_root(drive)
         if not os.path.isabs(s):
-            s = top.labspath + '/' + s
+            s = top.get_labspath() + '/' + s
         return root._lookup_abs(s, Entry)
 
 class DirBuildInfo(SCons.Node.BuildInfoBase):
-    current_version_id = 1
+    __slots__ = ()
+    current_version_id = 2
 
 glob_magic_check = re.compile('[*?[]')
 
@@ -1440,7 +1515,22 @@ class Dir(Base):
     """A class for directories in a file system.
     """
 
-    memoizer_counters = []
+    __slots__ = ['scanner_paths',
+                 'cachedir_csig',
+                 'cachesig',
+                 'repositories',
+                 'srcdir',
+                 'entries',
+                 'searched',
+                 '_sconsign',
+                 'variant_dirs',
+                 'root',
+                 'dirname',
+                 'on_disk_entries',
+                 'sccs_dir',
+                 'rcs_dir',
+                 'released_target_info',
+                 'contentsig']
 
     NodeInfo = DirNodeInfo
     BuildInfo = DirBuildInfo
@@ -1470,6 +1560,22 @@ class Dir(Base):
         self._sconsign = None
         self.variant_dirs = []
         self.root = self.dir.root
+        self.changed_since_last_build = 3
+        self._func_sconsign = 1
+        self._func_exists = 2
+        self._func_get_contents = 2
+        
+        self._abspath = SCons.Util.silent_intern(self.dir.entry_abspath(self.name))
+        self._labspath = SCons.Util.silent_intern(self.dir.entry_labspath(self.name))
+        if self.dir._path == '.':
+            self._path = SCons.Util.silent_intern(self.name)
+        else:
+            self._path = SCons.Util.silent_intern(self.dir.entry_path(self.name))
+        if self.dir._tpath == '.':
+            self._tpath = SCons.Util.silent_intern(self.name)
+        else:
+            self._tpath = SCons.Util.silent_intern(self.dir.entry_tpath(self.name))
+        self._path_elements = self.dir._path_elements + [self]
 
         # For directories, we make a difference between the directory
         # 'name' and the directory 'dirname'. The 'name' attribute is
@@ -1562,8 +1668,7 @@ class Dir(Base):
             return self.srcdir.get_all_rdirs() + self.repositories
         return self.repositories
 
-    memoizer_counters.append(SCons.Memoize.CountValue('get_all_rdirs'))
-
+    @SCons.Memoize.CountMethodCall
     def get_all_rdirs(self):
         try:
             return list(self._memo['get_all_rdirs'])
@@ -1589,7 +1694,7 @@ class Dir(Base):
     def addRepository(self, dir):
         if dir != self and not dir in self.repositories:
             self.repositories.append(dir)
-            dir.tpath = '.'
+            dir._tpath = '.'
             self.__clearRepositoryCache()
 
     def up(self):
@@ -1598,8 +1703,7 @@ class Dir(Base):
     def _rel_path_key(self, other):
         return str(other)
 
-    memoizer_counters.append(SCons.Memoize.CountDict('rel_path', _rel_path_key))
-
+    @SCons.Memoize.CountDictCall(_rel_path_key)
     def rel_path(self, other):
         """Return a path to "other" relative to this directory.
         """
@@ -1628,7 +1732,7 @@ class Dir(Base):
         if self is other:
             result = '.'
 
-        elif not other in self.path_elements:
+        elif not other in self._path_elements:
             try:
                 other_dir = other.get_dir()
             except AttributeError:
@@ -1643,10 +1747,10 @@ class Dir(Base):
                     else:
                         result = dir_rel_path + OS_SEP + other.name
         else:
-            i = self.path_elements.index(other) + 1
+            i = self._path_elements.index(other) + 1
 
-            path_elems = ['..'] * (len(self.path_elements) - i) \
-                         + [n.name for n in other.path_elements[i:]]
+            path_elems = ['..'] * (len(self._path_elements) - i) \
+                         + [n.name for n in other._path_elements[i:]]
              
             result = OS_SEP.join(path_elems)
 
@@ -1713,7 +1817,7 @@ class Dir(Base):
             if p is None:
                 # Don't use while: - else: for this condition because
                 # if so, then parent is None and has no .path attribute.
-                raise SCons.Errors.StopError(parent.path)
+                raise SCons.Errors.StopError(parent._path)
             parent = p
         listDirs.reverse()
         for dirnode in listDirs:
@@ -1753,10 +1857,7 @@ class Dir(Base):
     def get_contents(self):
         """Return content signatures and names of all our children
         separated by new-lines. Ensure that the nodes are sorted."""
-        contents = []
-        for node in sorted(self.children(), key=lambda t: t.name):
-            contents.append('%s %s\n' % (node.get_csig(), node.name))
-        return ''.join(contents)
+        return SCons.Node._get_contents_map[self._func_get_contents](self)
 
     def get_csig(self):
         """Compute the content signature for Directory nodes. In
@@ -1770,8 +1871,6 @@ class Dir(Base):
     def do_duplicate(self, src):
         pass
 
-    changed_since_last_build = SCons.Node.Node.state_has_changed
-
     def is_up_to_date(self):
         """If any child is not up-to-date, then this directory isn't,
         either."""
@@ -1795,12 +1894,8 @@ class Dir(Base):
         return self
 
     def sconsign(self):
-        """Return the .sconsign file info for this directory,
-        creating it first if necessary."""
-        if not self._sconsign:
-            import SCons.SConsign
-            self._sconsign = SCons.SConsign.ForDirectory(self)
-        return self._sconsign
+        """Return the .sconsign file info for this directory. """
+        return _sconsign_map[self._func_sconsign](self)
 
     def srcnode(self):
         """Dir has a special need for srcnode()...if we
@@ -1817,17 +1912,34 @@ class Dir(Base):
                 stamp = kid.get_timestamp()
         return stamp
 
+    def get_abspath(self):
+        """Get the absolute path of the file."""
+        return self._abspath
+
+    def get_labspath(self):
+        """Get the absolute path of the file."""
+        return self._labspath
+
+    def get_internal_path(self):
+        return self._path
+        
+    def get_tpath(self):
+        return self._tpath
+        
+    def get_path_elements(self):
+        return self._path_elements
+
     def entry_abspath(self, name):
-        return self.abspath + OS_SEP + name
+        return self._abspath + OS_SEP + name
 
     def entry_labspath(self, name):
-        return self.labspath + '/' + name
+        return self._labspath + '/' + name
 
     def entry_path(self, name):
-        return self.path + OS_SEP + name
+        return self._path + OS_SEP + name
 
     def entry_tpath(self, name):
-        return self.tpath + OS_SEP + name
+        return self._tpath + OS_SEP + name
 
     def entry_exists_on_disk(self, name):
         """ Searches through the file/dir entries of the current
@@ -1841,7 +1953,7 @@ class Dir(Base):
         except AttributeError:
             d = {}
             try:
-                entries = os.listdir(self.abspath)
+                entries = os.listdir(self._abspath)
             except OSError:
                 pass
             else:
@@ -1854,7 +1966,7 @@ class Dir(Base):
             if result is None:
                 # Belt-and-suspenders for Windows:  check directly for
                 # 8.3 file names that don't show up in os.listdir().
-                result = os.path.exists(self.abspath + OS_SEP + name)
+                result = os.path.exists(self._abspath + OS_SEP + name)
                 d[name] = result
             return result
         else:
@@ -1887,8 +1999,7 @@ class Dir(Base):
                         break
         return rentry_exists
 
-    memoizer_counters.append(SCons.Memoize.CountValue('srcdir_list'))
-
+    @SCons.Memoize.CountMethodCall
     def srcdir_list(self):
         try:
             return self._memo['srcdir_list']
@@ -1929,8 +2040,7 @@ class Dir(Base):
     def _srcdir_find_file_key(self, filename):
         return filename
 
-    memoizer_counters.append(SCons.Memoize.CountDict('srcdir_find_file', _srcdir_find_file_key))
-
+    @SCons.Memoize.CountDictCall(_srcdir_find_file_key)
     def srcdir_find_file(self, filename):
         try:
             memo_dict = self._memo['srcdir_find_file']
@@ -2105,7 +2215,7 @@ class Dir(Base):
                 for name in node_names: selfEntry(name)
             if ondisk:
                 try:
-                    disk_names = os.listdir(dir.abspath)
+                    disk_names = os.listdir(dir._abspath)
                 except os.error:
                     continue
                 names.extend(disk_names)
@@ -2151,18 +2261,12 @@ class RootDir(Dir):
     add a separator when creating the path names of entries within
     this directory.
     """
+    
+    __slots__ = ['_lookupDict']
+    
     def __init__(self, drive, fs):
         if SCons.Debug.track_instances: logInstanceCreation(self, 'Node.FS.RootDir')
-        # We're going to be our own parent directory (".." entry and .dir
-        # attribute) so we have to set up some values so Base.__init__()
-        # won't gag won't it calls some of our methods.
-        self.abspath = ''
-        self.labspath = ''
-        self.path = ''
-        self.tpath = ''
-        self.path_elements = []
-        self.duplicate = 0
-        self.root = self
+        SCons.Node.Node.__init__(self)
 
         # Handle all the types of drives:
         if drive == '':
@@ -2178,33 +2282,85 @@ class RootDir(Dir):
             name = drive
             dirname = drive + OS_SEP
 
-        Base.__init__(self, name, self, fs)
+        #: Filename with extension as it was specified when the object was
+        #: created; to obtain filesystem path, use Python str() function
+        self.name = SCons.Util.silent_intern(name)
+        self.fs = fs #: Reference to parent Node.FS object
+
+        self._path_elements = [self]
+        self.dir = self
+        self._func_rexists = 2
+        self._func_target_from_source = 1
+        self.store_info = 1
 
         # Now set our paths to what we really want them to be. The
         # name should already contain any necessary separators, such
         # as the initial drive letter (the name) plus the directory
         # separator, except for the "lookup abspath," which does not
         # have the drive letter.
-        self.abspath = dirname
-        self.labspath = ''
-        self.path = dirname
-        self.tpath = dirname
-        self._morph()
-
-        # Must be reset after Dir._morph() is invoked...
+        self._abspath = dirname
+        self._labspath = ''
+        self._path = dirname
+        self._tpath = dirname
         self.dirname = dirname
 
+        self._morph()
+
+        self.duplicate = 0
         self._lookupDict = {}
 
         self._lookupDict[''] = self
         self._lookupDict['/'] = self
-
+        self.root = self
         # The // entry is necessary because os.path.normpath()
         # preserves double slashes at the beginning of a path on Posix
         # platforms.
         if not has_unc:
             self._lookupDict['//'] = self
 
+    def _morph(self):
+        """Turn a file system Node (either a freshly initialized directory
+        object or a separate Entry object) into a proper directory object.
+
+        Set up this directory's entries and hook it into the file
+        system tree.  Specify that directories (this Node) don't use
+        signatures for calculating whether they're current.
+        """
+
+        self.repositories = []
+        self.srcdir = None
+
+        self.entries = {}
+        self.entries['.'] = self
+        self.entries['..'] = self.dir
+        self.cwd = self
+        self.searched = 0
+        self._sconsign = None
+        self.variant_dirs = []
+        self.changed_since_last_build = 3
+        self._func_sconsign = 1
+        self._func_exists = 2
+        self._func_get_contents = 2
+        
+        # Don't just reset the executor, replace its action list,
+        # because it might have some pre-or post-actions that need to
+        # be preserved.
+        #
+        # But don't reset the executor if there is a non-null executor
+        # attached already. The existing executor might have other
+        # targets, in which case replacing the action list with a
+        # Mkdir action is a big mistake.
+        if not hasattr(self, 'executor'):
+            self.builder = get_MkdirBuilder()
+            self.get_executor().set_action_list(self.builder.action)
+        else:
+            # Prepend MkdirBuilder action to existing action list
+            l = self.get_executor().action_list
+            a = get_MkdirBuilder().action
+            l.insert(0, a) 
+            self.get_executor().set_action_list(l)
+      
+
     def must_be_same(self, klass):
         if klass is Dir:
             return
@@ -2253,19 +2409,19 @@ class RootDir(Dir):
         return result
 
     def __str__(self):
-        return self.abspath
+        return self._abspath
 
     def entry_abspath(self, name):
-        return self.abspath + name
+        return self._abspath + name
 
     def entry_labspath(self, name):
         return '/' + name
 
     def entry_path(self, name):
-        return self.path + name
+        return self._path + name
 
     def entry_tpath(self, name):
-        return self.tpath + name
+        return self._tpath + name
 
     def is_under(self, dir):
         if self is dir:
@@ -2283,7 +2439,8 @@ class RootDir(Dir):
         return _null
 
 class FileNodeInfo(SCons.Node.NodeInfoBase):
-    current_version_id = 1
+    __slots__ = ('csig', 'timestamp', 'size')
+    current_version_id = 2
 
     field_list = ['csig', 'timestamp', 'size']
 
@@ -2298,11 +2455,43 @@ class FileNodeInfo(SCons.Node.NodeInfoBase):
             if drive:
                 root = self.fs.get_root(drive)
         if not os.path.isabs(s):
-            s = top.labspath + '/' + s
+            s = top.get_labspath() + '/' + s
         return root._lookup_abs(s, Entry)
 
+    def __getstate__(self):
+        """
+        Return all fields that shall be pickled. Walk the slots in the class
+        hierarchy and add those to the state dictionary. If a '__dict__' slot is
+        available, copy all entries to the dictionary. Also include the version
+        id, which is fixed for all instances of a class.
+        """
+        state = getattr(self, '__dict__', {}).copy()
+        for obj in type(self).mro():
+            for name in getattr(obj,'__slots__',()):
+                if hasattr(self, name):
+                    state[name] = getattr(self, name)
+
+        state['_version_id'] = self.current_version_id
+        try:
+            del state['__weakref__']
+        except KeyError:
+            pass
+
+        return state
+
+    def __setstate__(self, state):
+        """
+        Restore the attributes from a pickled state.
+        """
+        # TODO check or discard version
+        del state['_version_id']
+        for key, value in state.items():
+            if key not in ('__weakref__',):
+                setattr(self, key, value)
+
 class FileBuildInfo(SCons.Node.BuildInfoBase):
-    current_version_id = 1
+    __slots__ = ()
+    current_version_id = 2
 
     def convert_to_sconsign(self):
         """
@@ -2317,7 +2506,7 @@ class FileBuildInfo(SCons.Node.BuildInfoBase):
         else:
             def node_to_str(n):
                 try:
-                    s = n.path
+                    s = n.get_internal_path()
                 except AttributeError:
                     s = str(n)
                 else:
@@ -2358,6 +2547,8 @@ class FileBuildInfo(SCons.Node.BuildInfoBase):
                 nodeinfos = getattr(self, sattr)
             except AttributeError:
                 continue
+            if strings is None or nodeinfos is None:
+                continue
             nodes = []
             for s, ni in zip(strings, nodeinfos):
                 if not isinstance(s, SCons.Node.Node):
@@ -2371,6 +2562,8 @@ class FileBuildInfo(SCons.Node.BuildInfoBase):
         for bkid, bkidsig in zip(bkids, bkidsigs):
             result.append(str(bkid) + ': ' +
                           ' '.join(bkidsig.format(names=names)))
+        if not hasattr(self,'bact'):
+            self.bact = "none"
         result.append('%s [%s]' % (self.bactsig, self.bact))
         return '\n'.join(result)
 
@@ -2378,7 +2571,22 @@ class File(Base):
     """A class for files in a file system.
     """
 
-    memoizer_counters = []
+    __slots__ = ['scanner_paths',
+                 'cachedir_csig',
+                 'cachesig',
+                 'repositories',
+                 'srcdir',
+                 'entries',
+                 'searched',
+                 '_sconsign',
+                 'variant_dirs',
+                 'root',
+                 'dirname',
+                 'on_disk_entries',
+                 'sccs_dir',
+                 'rcs_dir',
+                 'released_target_info',
+                 'contentsig']
 
     NodeInfo = FileNodeInfo
     BuildInfo = FileBuildInfo
@@ -2429,6 +2637,14 @@ class File(Base):
         if not hasattr(self, 'released_target_info'):
             self.released_target_info = False
 
+        self.store_info = 1
+        self._func_exists = 4
+        self._func_get_contents = 3
+        
+        # Initialize this Node's decider function to decide_source() because
+        # every file is a source file until it has a Builder attached...
+        self.changed_since_last_build = 4
+        
         # If there was already a Builder set on this entry, then
         # we need to make sure we call the target-decider function,
         # not the source-decider.  Reaching in and doing this by hand
@@ -2440,22 +2656,13 @@ class File(Base):
         # not clear right now how to fix that, stick with what works
         # until it becomes clear...
         if self.has_builder():
-            self.changed_since_last_build = self.decide_target
+            self.changed_since_last_build = 5
 
     def scanner_key(self):
         return self.get_suffix()
 
     def get_contents(self):
-        if not self.rexists():
-            return ''
-        fname = self.rfile().abspath
-        try:
-            contents = open(fname, "rb").read()
-        except EnvironmentError, e:
-            if not e.filename:
-                e.filename = fname
-            raise
-        return contents
+        return SCons.Node._get_contents_map[self._func_get_contents](self)
 
     # This attempts to figure out what the encoding of the text is
     # based upon the BOM bytes, and then decodes the contents so that
@@ -2482,7 +2689,7 @@ class File(Base):
         """
         if not self.rexists():
             return SCons.Util.MD5signature('')
-        fname = self.rfile().abspath
+        fname = self.rfile().get_abspath()
         try:
             cs = SCons.Util.MD5filesignature(fname,
                 chunksize=SCons.Node.FS.File.md5_chunksize*1024)
@@ -2492,9 +2699,7 @@ class File(Base):
             raise
         return cs
         
-
-    memoizer_counters.append(SCons.Memoize.CountValue('get_size'))
-
+    @SCons.Memoize.CountMethodCall
     def get_size(self):
         try:
             return self._memo['get_size']
@@ -2510,8 +2715,7 @@ class File(Base):
 
         return size
 
-    memoizer_counters.append(SCons.Memoize.CountValue('get_timestamp'))
-
+    @SCons.Memoize.CountMethodCall
     def get_timestamp(self):
         try:
             return self._memo['get_timestamp']
@@ -2527,14 +2731,6 @@ class File(Base):
 
         return timestamp
 
-    def store_info(self):
-        # Merge our build information into the already-stored entry.
-        # This accomodates "chained builds" where a file that's a target
-        # in one build (SConstruct file) is a source in a different build.
-        # See test/chained-build.py for the use case.
-        if do_store_info:
-            self.dir.sconsign().store_info(self.name, self)
-
     convert_copy_attrs = [
         'bsources',
         'bimplicit',
@@ -2647,8 +2843,7 @@ class File(Base):
             delattr(old_entry, attr)
         return new_entry
 
-    memoizer_counters.append(SCons.Memoize.CountValue('get_stored_info'))
-
+    @SCons.Memoize.CountMethodCall
     def get_stored_info(self):
         try:
             return self._memo['get_stored_info']
@@ -2688,8 +2883,7 @@ class File(Base):
     def _get_found_includes_key(self, env, scanner, path):
         return (id(env), id(scanner), path)
 
-    memoizer_counters.append(SCons.Memoize.CountDict('get_found_includes', _get_found_includes_key))
-
+    @SCons.Memoize.CountDictCall(_get_found_includes_key)
     def get_found_includes(self, env, scanner, path):
         """Return the included implicit dependencies in this file.
         Cache results so we only scan the file once per path
@@ -2773,9 +2967,9 @@ class File(Base):
             # any build information that's stored in the .sconsign file
             # into our binfo object so it doesn't get lost.
             old = self.get_stored_info()
-            self.get_binfo().__dict__.update(old.binfo.__dict__)
+            self.get_binfo().merge(old.binfo)
 
-        self.store_info()
+        SCons.Node.store_info_map[self.store_info](self)
 
     def release_target_info(self):
         """Called just after this node has been marked
@@ -2875,7 +3069,7 @@ class File(Base):
 
     def _rmv_existing(self):
         self.clear_memoized_values()
-        if print_duplicate:
+        if SCons.Node.print_duplicate:
             print "dup: removing existing target %s"%self
         e = Unlink(self, [], None)
         if isinstance(e, SCons.Errors.BuildError):
@@ -2911,18 +3105,18 @@ class File(Base):
     def remove(self):
         """Remove this file."""
         if self.exists() or self.islink():
-            self.fs.unlink(self.path)
+            self.fs.unlink(self.get_internal_path())
             return 1
         return None
 
     def do_duplicate(self, src):
         self._createDir()
-        if print_duplicate:
+        if SCons.Node.print_duplicate:
             print "dup: relinking variant '%s' from '%s'"%(self, src)
         Unlink(self, None, None)
         e = Link(self, src, None)
         if isinstance(e, SCons.Errors.BuildError):
-            desc = "Cannot duplicate `%s' in `%s': %s." % (src.path, self.dir.path, e.errstr)
+            desc = "Cannot duplicate `%s' in `%s': %s." % (src.get_internal_path(), self.dir._path, e.errstr)
             raise SCons.Errors.StopError(desc)
         self.linked = 1
         # The Link() action may or may not have actually
@@ -2931,36 +3125,14 @@ class File(Base):
         # _rexists attributes so they can be reevaluated.
         self.clear()
 
-    memoizer_counters.append(SCons.Memoize.CountValue('exists'))
-
+    @SCons.Memoize.CountMethodCall
     def exists(self):
         try:
             return self._memo['exists']
         except KeyError:
             pass
-        # Duplicate from source path if we are set up to do this.
-        if self.duplicate and not self.is_derived() and not self.linked:
-            src = self.srcnode()
-            if src is not self:
-                # At this point, src is meant to be copied in a variant directory.
-                src = src.rfile()
-                if src.abspath != self.abspath:
-                    if src.exists():
-                        self.do_duplicate(src)
-                        # Can't return 1 here because the duplication might
-                        # not actually occur if the -n option is being used.
-                    else:
-                        # The source file does not exist.  Make sure no old
-                        # copy remains in the variant directory.
-                        if print_duplicate:
-                            print "dup: no src for %s, unlinking old variant copy"%self
-                        if Base.exists(self) or self.islink():
-                            self.fs.unlink(self.path)
-                        # Return None explicitly because the Base.exists() call
-                        # above will have cached its value if the file existed.
-                        self._memo['exists'] = None
-                        return None
-        result = Base.exists(self)
+        
+        result = SCons.Node._exists_map[self._func_exists](self)
         self._memo['exists'] = result
         return result
 
@@ -3037,7 +3209,7 @@ class File(Base):
 
     def builder_set(self, builder):
         SCons.Node.Node.builder_set(self, builder)
-        self.changed_since_last_build = self.decide_target
+        self.changed_since_last_build = 5
 
     def built(self):
         """Called just after this File node is successfully built.
@@ -3054,10 +3226,10 @@ class File(Base):
         if (not SCons.Node.interactive and 
             not hasattr(self.attributes, 'keep_targetinfo')):
             # Ensure that the build infos get computed and cached...        
-            self.store_info()
+            SCons.Node.store_info_map[self.store_info](self)
             # ... then release some more variables.
             self._specific_sources = False
-            self.labspath = None
+            self._labspath = None
             self._save_str()
             self.cwd = None
              
@@ -3116,16 +3288,6 @@ class File(Base):
         except AttributeError:
             return 1
 
-    def decide_source(self, target, prev_ni):
-        return target.get_build_env().decide_source(self, target, prev_ni)
-
-    def decide_target(self, target, prev_ni):
-        return target.get_build_env().decide_target(self, target, prev_ni)
-
-    # Initialize this Node's decider function to decide_source() because
-    # every file is a source file until it has a Builder attached...
-    changed_since_last_build = decide_source
-
     def is_up_to_date(self):
         T = 0
         if T: Trace('is_up_to_date(%s):' % self)
@@ -3143,7 +3305,7 @@ class File(Base):
                         e = LocalCopy(self, r, None)
                         if isinstance(e, SCons.Errors.BuildError):
                             raise 
-                        self.store_info()
+                        SCons.Node.store_info_map[self.store_info](self)
                     if T: Trace(' 1\n')
                     return 1
             self.changed()
@@ -3154,8 +3316,7 @@ class File(Base):
             if T: Trace(' self.exists():  %s\n' % r)
             return not r
 
-    memoizer_counters.append(SCons.Memoize.CountValue('rfile'))
-
+    @SCons.Memoize.CountMethodCall
     def rfile(self):
         try:
             return self._memo['rfile']
@@ -3257,7 +3418,7 @@ class File(Base):
         # Append this node's signature...
         sigs.append(self.get_contents_sig())
         # ...and it's path
-        sigs.append(self.path)
+        sigs.append(self.get_internal_path())
         # Merge this all into a single signature
         result = self.cachesig = SCons.Util.MD5collect(sigs)
         return result
@@ -3273,10 +3434,6 @@ def get_default_fs():
 class FileFinder(object):
     """
     """
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
-    memoizer_counters = []
 
     def __init__(self):
         self._memo = {}
@@ -3319,8 +3476,7 @@ class FileFinder(object):
     def _find_file_key(self, filename, paths, verbose=None):
         return (filename, paths)
         
-    memoizer_counters.append(SCons.Memoize.CountDict('find_file', _find_file_key))
-
+    @SCons.Memoize.CountDictCall(_find_file_key)
     def find_file(self, filename, paths, verbose=None):
         """
         find_file(str, [Dir()]) -> [nodes]
diff --git a/engine/SCons/Node/Python.py b/engine/SCons/Node/Python.py
index 99773ab..b247ff6 100644
--- a/engine/SCons/Node/Python.py
+++ b/engine/SCons/Node/Python.py
@@ -27,20 +27,54 @@ Python nodes.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Node/Python.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Node/Python.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Node
 
 class ValueNodeInfo(SCons.Node.NodeInfoBase):
-    current_version_id = 1
+    __slots__ = ('csig',)
+    current_version_id = 2
 
     field_list = ['csig']
 
     def str_to_node(self, s):
         return Value(s)
 
+    def __getstate__(self):
+        """
+        Return all fields that shall be pickled. Walk the slots in the class
+        hierarchy and add those to the state dictionary. If a '__dict__' slot is
+        available, copy all entries to the dictionary. Also include the version
+        id, which is fixed for all instances of a class.
+        """
+        state = getattr(self, '__dict__', {}).copy()
+        for obj in type(self).mro():
+            for name in getattr(obj,'__slots__',()):
+                if hasattr(self, name):
+                    state[name] = getattr(self, name)
+
+        state['_version_id'] = self.current_version_id
+        try:
+            del state['__weakref__']
+        except KeyError:
+            pass
+        
+        return state
+
+    def __setstate__(self, state):
+        """
+        Restore the attributes from a pickled state.
+        """
+        # TODO check or discard version
+        del state['_version_id']
+        for key, value in state.items():
+            if key not in ('__weakref__',):
+                setattr(self, key, value)
+
+
 class ValueBuildInfo(SCons.Node.BuildInfoBase):
-    current_version_id = 1
+    __slots__ = ()
+    current_version_id = 2
 
 class Value(SCons.Node.Node):
     """A class for Python variables, typically passed on the command line 
@@ -53,6 +87,8 @@ class Value(SCons.Node.Node):
     def __init__(self, value, built_value=None):
         SCons.Node.Node.__init__(self)
         self.value = value
+        self.changed_since_last_build = 6
+        self.store_info = 0
         if built_value is not None:
             self.built_value = built_value
 
diff --git a/engine/SCons/Node/__init__.py b/engine/SCons/Node/__init__.py
index a261ee7..79db894 100644
--- a/engine/SCons/Node/__init__.py
+++ b/engine/SCons/Node/__init__.py
@@ -41,7 +41,7 @@ be able to depend on any other type of "thing."
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Node/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Node/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import collections
 import copy
@@ -55,6 +55,8 @@ import SCons.Util
 
 from SCons.Debug import Trace
 
+print_duplicate = 0
+
 def classname(obj):
     return str(obj.__class__).split('.')[-1]
 
@@ -105,6 +107,233 @@ Annotate = do_nothing
 # clean builds and update runs (see release_target_info).
 interactive = False
 
+def is_derived_none(node):
+    raise NotImplementedError
+
+def is_derived_node(node):
+    """
+        Returns true if this node is derived (i.e. built).
+    """
+    return node.has_builder() or node.side_effect
+
+_is_derived_map = {0 : is_derived_none,
+                   1 : is_derived_node}
+
+def exists_none(node):
+    raise NotImplementedError
+
+def exists_always(node):
+    return 1
+
+def exists_base(node):
+    return node.stat() is not None
+
+def exists_entry(node):
+    """Return if the Entry exists.  Check the file system to see
+    what we should turn into first.  Assume a file if there's no
+    directory."""
+    node.disambiguate()
+    return _exists_map[node._func_exists](node)
+
+def exists_file(node):
+    # Duplicate from source path if we are set up to do this.
+    if node.duplicate and not node.is_derived() and not node.linked:
+        src = node.srcnode()
+        if src is not node:
+            # At this point, src is meant to be copied in a variant directory.
+            src = src.rfile()
+            if src.get_abspath() != node.get_abspath():
+                if src.exists():
+                    node.do_duplicate(src)
+                    # Can't return 1 here because the duplication might
+                    # not actually occur if the -n option is being used.
+                else:
+                    # The source file does not exist.  Make sure no old
+                    # copy remains in the variant directory.
+                    if print_duplicate:
+                        print "dup: no src for %s, unlinking old variant copy"%self
+                    if exists_base(node) or node.islink():
+                        node.fs.unlink(node.get_internal_path())
+                    # Return None explicitly because the Base.exists() call
+                    # above will have cached its value if the file existed.
+                    return None
+    return exists_base(node)
+
+_exists_map = {0 : exists_none,
+               1 : exists_always,
+               2 : exists_base,
+               3 : exists_entry,
+               4 : exists_file}
+
+
+def rexists_none(node):
+    raise NotImplementedError
+
+def rexists_node(node):
+    return node.exists()
+
+def rexists_base(node):
+    return node.rfile().exists()
+
+_rexists_map = {0 : rexists_none,
+                1 : rexists_node,
+                2 : rexists_base}
+
+def get_contents_none(node):
+    raise NotImplementedError
+
+def get_contents_entry(node):
+    """Fetch the contents of the entry.  Returns the exact binary
+    contents of the file."""
+    try:
+        node = node.disambiguate(must_exist=1)
+    except SCons.Errors.UserError:
+        # There was nothing on disk with which to disambiguate
+        # this entry.  Leave it as an Entry, but return a null
+        # string so calls to get_contents() in emitters and the
+        # like (e.g. in qt.py) don't have to disambiguate by hand
+        # or catch the exception.
+        return ''
+    else:
+        return _get_contents_map[node._func_get_contents](node)
+
+def get_contents_dir(node):
+    """Return content signatures and names of all our children
+    separated by new-lines. Ensure that the nodes are sorted."""
+    contents = []
+    for n in sorted(node.children(), key=lambda t: t.name):
+        contents.append('%s %s\n' % (n.get_csig(), n.name))
+    return ''.join(contents)
+
+def get_contents_file(node):    
+    if not node.rexists():
+        return ''
+    fname = node.rfile().get_abspath()
+    try:
+        contents = open(fname, "rb").read()
+    except EnvironmentError, e:
+        if not e.filename:
+            e.filename = fname
+        raise
+    return contents
+
+_get_contents_map = {0 : get_contents_none,
+                     1 : get_contents_entry,
+                     2 : get_contents_dir,
+                     3 : get_contents_file}
+
+def target_from_source_none(node, prefix, suffix, splitext):
+    raise NotImplementedError
+
+def target_from_source_base(node, prefix, suffix, splitext):
+    return node.dir.Entry(prefix + splitext(node.name)[0] + suffix)
+
+_target_from_source_map = {0 : target_from_source_none,
+                           1 : target_from_source_base}
+
+#
+# The new decider subsystem for Nodes
+#
+# We would set and overwrite the changed_since_last_build function
+# before, but for being able to use slots (less memory!) we now have
+# a dictionary of the different decider functions. Then in the Node
+# subclasses we simply store the index to the decider that should be
+# used by it.
+#
+
+#
+# First, the single decider functions
+#
+def changed_since_last_build_node(node, target, prev_ni):
+    """
+
+    Must be overridden in a specific subclass to return True if this
+    Node (a dependency) has changed since the last time it was used
+    to build the specified target.  prev_ni is this Node's state (for
+    example, its file timestamp, length, maybe content signature)
+    as of the last time the target was built.
+
+    Note that this method is called through the dependency, not the
+    target, because a dependency Node must be able to use its own
+    logic to decide if it changed.  For example, File Nodes need to
+    obey if we're configured to use timestamps, but Python Value Nodes
+    never use timestamps and always use the content.  If this method
+    were called through the target, then each Node's implementation
+    of this method would have to have more complicated logic to
+    handle all the different Node types on which it might depend.
+    """
+    raise NotImplementedError
+
+def changed_since_last_build_alias(node, target, prev_ni):
+    cur_csig = node.get_csig()
+    try:
+        return cur_csig != prev_ni.csig
+    except AttributeError:
+        return 1
+
+def changed_since_last_build_entry(node, target, prev_ni):
+    node.disambiguate()
+    return _decider_map[node.changed_since_last_build](node, target, prev_ni)
+
+def changed_since_last_build_state_changed(node, target, prev_ni):
+    return (node.state != SCons.Node.up_to_date)
+
+def decide_source(node, target, prev_ni):
+    return target.get_build_env().decide_source(node, target, prev_ni)
+
+def decide_target(node, target, prev_ni):
+    return target.get_build_env().decide_target(node, target, prev_ni)
+
+def changed_since_last_build_python(node, target, prev_ni):
+    cur_csig = node.get_csig()
+    try:
+        return cur_csig != prev_ni.csig
+    except AttributeError:
+        return 1
+
+
+#
+# Now, the mapping from indices to decider functions
+#
+_decider_map = {0 : changed_since_last_build_node,
+               1 : changed_since_last_build_alias,
+               2 : changed_since_last_build_entry,
+               3 : changed_since_last_build_state_changed,
+               4 : decide_source,
+               5 : decide_target,
+               6 : changed_since_last_build_python}
+
+do_store_info = True
+
+#
+# The new store_info subsystem for Nodes
+#
+# We would set and overwrite the store_info function
+# before, but for being able to use slots (less memory!) we now have
+# a dictionary of the different functions. Then in the Node
+# subclasses we simply store the index to the info method that should be
+# used by it.
+#
+
+#
+# First, the single info functions
+#
+
+def store_info_pass(node):
+    pass
+
+def store_info_file(node):
+    # Merge our build information into the already-stored entry.
+    # This accommodates "chained builds" where a file that's a target
+    # in one build (SConstruct file) is a source in a different build.
+    # See test/chained-build.py for the use case.
+    if do_store_info:
+        node.dir.sconsign().store_info(node.name, node)
+
+
+store_info_map = {0 : store_info_pass,
+                  1 : store_info_file}
+
 # Classes for signature info for Nodes.
 
 class NodeInfoBase(object):
@@ -114,11 +343,8 @@ class NodeInfoBase(object):
     Node subclasses should subclass NodeInfoBase to provide their own
     logic for dealing with their own Node-specific signature information.
     """
-    current_version_id = 1
-    def __init__(self, node=None):
-        # Create an object attribute from the class attribute so it ends up
-        # in the pickled data in the .sconsign file.
-        self._version_id = self.current_version_id
+    __slots__ = ('__weakref__',)
+    current_version_id = 2
     def update(self, node):
         try:
             field_list = self.field_list
@@ -138,13 +364,25 @@ class NodeInfoBase(object):
     def convert(self, node, val):
         pass
     def merge(self, other):
-        self.__dict__.update(other.__dict__)
+        """
+        Merge the fields of another object into this object. Already existing
+        information is overwritten by the other instance's data.
+        WARNING: If a '__dict__' slot is added, it should be updated instead of
+        replaced.
+        """
+        state = other.__getstate__()
+        self.__setstate__(state)
     def format(self, field_list=None, names=0):
         if field_list is None:
             try:
                 field_list = self.field_list
             except AttributeError:
-                field_list = sorted(self.__dict__.keys())
+                field_list = getattr(self, '__dict__', {}).keys()
+                for obj in type(self).mro():
+                    for slot in getattr(obj, '__slots__', ()):
+                        if slot not in ('__weakref__', '__dict__'):
+                            field_list.append(slot)
+                field_list.sort()
         fields = []
         for field in field_list:
             try:
@@ -157,6 +395,38 @@ class NodeInfoBase(object):
             fields.append(f)
         return fields
 
+    def __getstate__(self):
+        """
+        Return all fields that shall be pickled. Walk the slots in the class
+        hierarchy and add those to the state dictionary. If a '__dict__' slot is
+        available, copy all entries to the dictionary. Also include the version
+        id, which is fixed for all instances of a class.
+        """
+        state = getattr(self, '__dict__', {}).copy()
+        for obj in type(self).mro():
+            for name in getattr(obj,'__slots__',()):
+                if hasattr(self, name):
+                    state[name] = getattr(self, name)
+    
+        state['_version_id'] = self.current_version_id
+        try:
+            del state['__weakref__']
+        except KeyError:
+            pass
+        return state
+    
+    def __setstate__(self, state):
+        """
+        Restore the attributes from a pickled state. The version is discarded.
+        """
+        # TODO check or discard version
+        del state['_version_id']
+    
+        for key, value in state.items():
+            if key not in ('__weakref__',):
+                setattr(self, key, value)
+
+
 class BuildInfoBase(object):
     """
     The generic base class for build information for a Node.
@@ -167,30 +437,106 @@ class BuildInfoBase(object):
     generic build stuff we have to track:  sources, explicit dependencies,
     implicit dependencies, and action information.
     """
-    current_version_id = 1
-    def __init__(self, node=None):
+    __slots__ = ("bsourcesigs", "bdependsigs", "bimplicitsigs", "bactsig",
+                 "bsources", "bdepends", "bact", "bimplicit", "__weakref__")
+    current_version_id = 2
+    def __init__(self):
         # Create an object attribute from the class attribute so it ends up
         # in the pickled data in the .sconsign file.
-        self._version_id = self.current_version_id
         self.bsourcesigs = []
         self.bdependsigs = []
         self.bimplicitsigs = []
         self.bactsig = None
     def merge(self, other):
-        self.__dict__.update(other.__dict__)
+        """
+        Merge the fields of another object into this object. Already existing
+        information is overwritten by the other instance's data.
+        WARNING: If a '__dict__' slot is added, it should be updated instead of
+        replaced.
+        """
+        state = other.__getstate__()
+        self.__setstate__(state)
+ 
+    def __getstate__(self):
+        """
+        Return all fields that shall be pickled. Walk the slots in the class
+        hierarchy and add those to the state dictionary. If a '__dict__' slot is
+        available, copy all entries to the dictionary. Also include the version
+        id, which is fixed for all instances of a class.
+        """
+        state = getattr(self, '__dict__', {}).copy()
+        for obj in type(self).mro():
+            for name in getattr(obj,'__slots__',()):
+                if hasattr(self, name):
+                    state[name] = getattr(self, name)
+
+        state['_version_id'] = self.current_version_id
+        try:
+            del state['__weakref__']
+        except KeyError:
+            pass
+        return state
+
+    def __setstate__(self, state):
+        """
+        Restore the attributes from a pickled state.
+        """
+        # TODO check or discard version
+        del state['_version_id']
+        for key, value in state.items():
+            if key not in ('__weakref__',):
+                setattr(self, key, value)
 
 class Node(object):
     """The base Node class, for entities that we know how to
     build, or use to build other Nodes.
     """
 
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
-    memoizer_counters = []
+    __slots__ = ['sources',
+                 'sources_set',
+                 '_specific_sources',
+                 'depends',
+                 'depends_set',
+                 'ignore',
+                 'ignore_set',
+                 'prerequisites',
+                 'implicit',
+                 'waiting_parents',
+                 'waiting_s_e',
+                 'ref_count',
+                 'wkids',
+                 'env',
+                 'state',
+                 'precious',
+                 'noclean',
+                 'nocache',
+                 'cached',
+                 'always_build',
+                 'includes',
+                 'attributes',
+                 'side_effect',
+                 'side_effects',
+                 'linked',
+                 '_memo',
+                 'executor',
+                 'binfo',
+                 'ninfo',
+                 'builder',
+                 'is_explicit',
+                 'implicit_set',
+                 'changed_since_last_build',
+                 'store_info',
+                 'pseudo',
+                 '_tags',
+                 '_func_is_derived',
+                 '_func_exists',
+                 '_func_rexists',
+                 '_func_get_contents',
+                 '_func_target_from_source']
 
     class Attrs(object):
-        pass
+        __slots__ = ('shared', '__dict__')
+ 
 
     def __init__(self):
         if SCons.Debug.track_instances: logInstanceCreation(self, 'Node.Node')
@@ -234,7 +580,15 @@ class Node(object):
         self.side_effect = 0 # true iff this node is a side effect
         self.side_effects = [] # the side effects of building this target
         self.linked = 0 # is this node linked to the variant directory?
-
+        self.changed_since_last_build = 0
+        self.store_info = 0
+        self._tags = None
+        self._func_is_derived = 1
+        self._func_exists = 1
+        self._func_rexists = 1
+        self._func_get_contents = 0
+        self._func_target_from_source = 0
+        
         self.clear_memoized_values()
 
         # Let the interface in which the build engine is embedded
@@ -248,8 +602,7 @@ class Node(object):
     def get_suffix(self):
         return ''
 
-    memoizer_counters.append(SCons.Memoize.CountValue('get_build_env'))
-
+    @SCons.Memoize.CountMethodCall
     def get_build_env(self):
         """Fetch the appropriate Environment to build this node.
         """
@@ -418,7 +771,7 @@ class Node(object):
             pass
         else:
             self.ninfo.update(self)
-            self.store_info()
+            SCons.Node.store_info_map[self.store_info](self)
 
     def release_target_info(self):
         """Called just after this node has been marked
@@ -546,7 +899,7 @@ class Node(object):
         example: source with source builders are not derived in this sense,
         and hence should not return true.
         """
-        return self.has_builder() or self.side_effect
+        return _is_derived_map[self._func_is_derived](self)
 
     def alter_targets(self):
         """Return a list of alternate targets for this Node.
@@ -706,7 +1059,7 @@ class Node(object):
     BuildInfo = BuildInfoBase
 
     def new_ninfo(self):
-        ninfo = self.NodeInfo(self)
+        ninfo = self.NodeInfo()
         return ninfo
 
     def get_ninfo(self):
@@ -717,7 +1070,7 @@ class Node(object):
             return self.ninfo
 
     def new_binfo(self):
-        binfo = self.BuildInfo(self)
+        binfo = self.BuildInfo()
         return binfo
 
     def get_binfo(self):
@@ -802,14 +1155,6 @@ class Node(object):
     def get_cachedir_csig(self):
         return self.get_csig()
 
-    def store_info(self):
-        """Make the build signature permanent (that is, store it in the
-        .sconsign file or equivalent)."""
-        pass
-
-    def do_not_store_info(self):
-        pass
-
     def get_stored_info(self):
         return None
 
@@ -847,13 +1192,16 @@ class Node(object):
 
     def exists(self):
         """Does this node exists?"""
-        # All node exist by default:
-        return 1
+        return _exists_map[self._func_exists](self)
 
     def rexists(self):
         """Does this node exist locally or in a repositiory?"""
         # There are no repositories by default:
-        return self.exists()
+        return _rexists_map[self._func_rexists](self)
+
+    def get_contents(self):
+        """Fetch the contents of the entry."""
+        return _get_contents_map[self._func_get_contents](self)
 
     def missing(self):
         return not self.is_derived() and \
@@ -941,11 +1289,10 @@ class Node(object):
         # build info that it's cached so we can re-calculate it.
         self.executor_cleanup()
 
-    memoizer_counters.append(SCons.Memoize.CountValue('_children_get'))
-
+    @SCons.Memoize.CountMethodCall
     def _children_get(self):
         try:
-            return self._memo['children_get']
+            return self._memo['_children_get']
         except KeyError:
             pass
 
@@ -976,7 +1323,7 @@ class Node(object):
         else:
             children = self.all_children(scan=0)
 
-        self._memo['children_get'] = children
+        self._memo['_children_get'] = children
         return children
 
     def all_children(self, scan=1):
@@ -1016,9 +1363,6 @@ class Node(object):
     def get_state(self):
         return self.state
 
-    def state_has_changed(self, target, prev_ni):
-        return (self.state != SCons.Node.up_to_date)
-
     def get_env(self):
         env = self.env
         if not env:
@@ -1026,28 +1370,28 @@ class Node(object):
             env = SCons.Defaults.DefaultEnvironment()
         return env
 
-    def changed_since_last_build(self, target, prev_ni):
-        """
-
-        Must be overridden in a specific subclass to return True if this
-        Node (a dependency) has changed since the last time it was used
-        to build the specified target.  prev_ni is this Node's state (for
-        example, its file timestamp, length, maybe content signature)
-        as of the last time the target was built.
-
-        Note that this method is called through the dependency, not the
-        target, because a dependency Node must be able to use its own
-        logic to decide if it changed.  For example, File Nodes need to
-        obey if we're configured to use timestamps, but Python Value Nodes
-        never use timestamps and always use the content.  If this method
-        were called through the target, then each Node's implementation
-        of this method would have to have more complicated logic to
-        handle all the different Node types on which it might depend.
-        """
-        raise NotImplementedError
-
     def Decider(self, function):
-        SCons.Util.AddMethod(self, function, 'changed_since_last_build')
+        foundkey = None
+        for k, v in _decider_map.iteritems():
+            if v == function:
+                foundkey = k
+                break
+        if not foundkey:
+            foundkey = len(_decider_map)
+            _decider_map[foundkey] = function
+        self.changed_since_last_build = foundkey
+
+    def Tag(self, key, value):
+        """ Add a user-defined tag. """
+        if not self._tags:
+            self._tags = {}
+        self._tags[key] = value
+
+    def GetTag(self, key):
+        """ Return a user-defined tag. """
+        if not self._tags:
+            return None
+        return self._tags.get(key, None)
 
     def changed(self, node=None, allowcache=False):
         """
@@ -1095,7 +1439,7 @@ class Node(object):
             result = True
 
         for child, prev_ni in zip(children, then):
-            if child.changed_since_last_build(self, prev_ni):
+            if _decider_map[child.changed_since_last_build](child, self, prev_ni):
                 if t: Trace(': %s changed' % child)
                 result = True
 
@@ -1266,7 +1610,7 @@ class Node(object):
         for k in new_bkids:
             if not k in old_bkids:
                 lines.append("`%s' is a new dependency\n" % stringify(k))
-            elif k.changed_since_last_build(self, osig[k]):
+            elif _decider_map[k.changed_since_last_build](k, self, osig[k]):
                 lines.append("`%s' changed\n" % stringify(k))
 
         if len(lines) == 0 and old_bkids != new_bkids:
diff --git a/engine/SCons/Options/BoolOption.py b/engine/SCons/Options/BoolOption.py
index 33ed315..c8d901f 100644
--- a/engine/SCons/Options/BoolOption.py
+++ b/engine/SCons/Options/BoolOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/BoolOption.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Options/BoolOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/EnumOption.py b/engine/SCons/Options/EnumOption.py
index 8a3601b..58b99ef 100644
--- a/engine/SCons/Options/EnumOption.py
+++ b/engine/SCons/Options/EnumOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/EnumOption.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Options/EnumOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/ListOption.py b/engine/SCons/Options/ListOption.py
index f32ebb6..00c93d9 100644
--- a/engine/SCons/Options/ListOption.py
+++ b/engine/SCons/Options/ListOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/ListOption.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Options/ListOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/PackageOption.py b/engine/SCons/Options/PackageOption.py
index 2a70d27..56624f0 100644
--- a/engine/SCons/Options/PackageOption.py
+++ b/engine/SCons/Options/PackageOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/PackageOption.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Options/PackageOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/PathOption.py b/engine/SCons/Options/PathOption.py
index 4450b02..a4b81ec 100644
--- a/engine/SCons/Options/PathOption.py
+++ b/engine/SCons/Options/PathOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/PathOption.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Options/PathOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/__init__.py b/engine/SCons/Options/__init__.py
index 4595b5a..5099712 100644
--- a/engine/SCons/Options/__init__.py
+++ b/engine/SCons/Options/__init__.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Options/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/PathList.py b/engine/SCons/PathList.py
index a69a64c..b359144 100644
--- a/engine/SCons/PathList.py
+++ b/engine/SCons/PathList.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/PathList.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/PathList.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """SCons.PathList
 
@@ -171,11 +171,6 @@ class PathListCache(object):
     cheaply avoid re-parsing both values of CPPPATH by using the
     common value from this cache.
     """
-    if SCons.Memoize.use_memoizer:
-        __metaclass__ = SCons.Memoize.Memoized_Metaclass
-
-    memoizer_counters = []
-
     def __init__(self):
         self._memo = {}
 
@@ -196,8 +191,7 @@ class PathListCache(object):
             pathlist = tuple(SCons.Util.flatten(pathlist))
         return pathlist
 
-    memoizer_counters.append(SCons.Memoize.CountDict('PathList', _PathList_key))
-
+    @SCons.Memoize.CountDictCall(_PathList_key)
     def PathList(self, pathlist):
         """
         Returns the cached _PathList object for the specified pathlist,
diff --git a/engine/SCons/Platform/__init__.py b/engine/SCons/Platform/__init__.py
index aa3c58f..ca4bc9b 100644
--- a/engine/SCons/Platform/__init__.py
+++ b/engine/SCons/Platform/__init__.py
@@ -42,7 +42,7 @@ their own platform definition.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.compat
 
diff --git a/engine/SCons/Platform/aix.py b/engine/SCons/Platform/aix.py
index 40f714e..44bccd1 100644
--- a/engine/SCons/Platform/aix.py
+++ b/engine/SCons/Platform/aix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/aix.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/aix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import subprocess
diff --git a/engine/SCons/Platform/cygwin.py b/engine/SCons/Platform/cygwin.py
index e30fa65..d04bbe7 100644
--- a/engine/SCons/Platform/cygwin.py
+++ b/engine/SCons/Platform/cygwin.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/cygwin.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/cygwin.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import posix
 from SCons.Platform import TempFileMunge
diff --git a/engine/SCons/Platform/darwin.py b/engine/SCons/Platform/darwin.py
index d494961..efd8ba4 100644
--- a/engine/SCons/Platform/darwin.py
+++ b/engine/SCons/Platform/darwin.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/darwin.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/darwin.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import posix
 import os
diff --git a/engine/SCons/Platform/hpux.py b/engine/SCons/Platform/hpux.py
index 4e73361..2e2fbca 100644
--- a/engine/SCons/Platform/hpux.py
+++ b/engine/SCons/Platform/hpux.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/hpux.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/hpux.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import posix
 
diff --git a/engine/SCons/Platform/irix.py b/engine/SCons/Platform/irix.py
index 3084b3a..3bedbdf 100644
--- a/engine/SCons/Platform/irix.py
+++ b/engine/SCons/Platform/irix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/irix.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/irix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import posix
 
diff --git a/engine/SCons/Platform/os2.py b/engine/SCons/Platform/os2.py
index 1190947..82eb163 100644
--- a/engine/SCons/Platform/os2.py
+++ b/engine/SCons/Platform/os2.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/os2.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/os2.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 import win32
 
 def generate(env):
diff --git a/engine/SCons/Platform/posix.py b/engine/SCons/Platform/posix.py
index 9fe5aa5..8445863 100644
--- a/engine/SCons/Platform/posix.py
+++ b/engine/SCons/Platform/posix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/posix.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/posix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import errno
 import os
diff --git a/engine/SCons/Platform/sunos.py b/engine/SCons/Platform/sunos.py
index cca5a44..1c1d797 100644
--- a/engine/SCons/Platform/sunos.py
+++ b/engine/SCons/Platform/sunos.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/sunos.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/sunos.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import posix
 
diff --git a/engine/SCons/Platform/win32.py b/engine/SCons/Platform/win32.py
index 7293489..3bad86b 100644
--- a/engine/SCons/Platform/win32.py
+++ b/engine/SCons/Platform/win32.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/win32.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/win32.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/SConf.py b/engine/SCons/SConf.py
index 442983e..2ef4003 100644
--- a/engine/SCons/SConf.py
+++ b/engine/SCons/SConf.py
@@ -34,7 +34,7 @@ libraries are installed, if some command line options are supported etc.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/SConf.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/SConf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.compat
 
@@ -175,8 +175,11 @@ class SConfBuildInfo(SCons.Node.FS.FileBuildInfo):
     are result (did the builder succeed last time?) and string, which
     contains messages of the original build phase.
     """
-    result = None # -> 0/None -> no error, != 0 error
-    string = None # the stdout / stderr output when building the target
+    __slots__ = ('result', 'string')
+    
+    def __init__(self):
+        self.result = None # -> 0/None -> no error, != 0 error
+        self.string = None # the stdout / stderr output when building the target
 
     def set_build_result(self, result, string):
         self.result = result
@@ -352,8 +355,10 @@ class SConfBuildTask(SCons.Taskmaster.AlwaysTask):
                 raise SCons.Errors.ExplicitExit(self.targets[0],exc_value.code)
             except Exception, e:
                 for t in self.targets:
-                    binfo = t.get_binfo()
-                    binfo.__class__ = SConfBuildInfo
+                    #binfo = t.get_binfo()
+                    #binfo.__class__ = SConfBuildInfo
+                    binfo = SConfBuildInfo()
+                    binfo.merge(t.get_binfo())
                     binfo.set_build_result(1, s.getvalue())
                     sconsign_entry = SCons.SConsign.SConsignEntry()
                     sconsign_entry.binfo = binfo
@@ -370,8 +375,10 @@ class SConfBuildTask(SCons.Taskmaster.AlwaysTask):
                 raise e
             else:
                 for t in self.targets:
-                    binfo = t.get_binfo()
-                    binfo.__class__ = SConfBuildInfo
+                    #binfo = t.get_binfo()
+                    #binfo.__class__ = SConfBuildInfo
+                    binfo = SConfBuildInfo()
+                    binfo.merge(t.get_binfo())
                     binfo.set_build_result(0, s.getvalue())
                     sconsign_entry = SCons.SConsign.SConsignEntry()
                     sconsign_entry.binfo = binfo
@@ -500,7 +507,7 @@ class SConfBase(object):
         # we override the store_info() method with a null place-holder
         # so we really control how it gets written.
         for n in nodes:
-            n.store_info = n.do_not_store_info
+            n.store_info = 0
             if not hasattr(n, 'attributes'):
                 n.attributes = SCons.Node.Node.Attrs()
             n.attributes.keep_targetinfo = 1
@@ -640,7 +647,7 @@ class SConfBase(object):
         ok = self.TryLink(text, extension)
         if( ok ):
             prog = self.lastTarget
-            pname = prog.path
+            pname = prog.get_internal_path()
             output = self.confdir.File(os.path.basename(pname)+'.out')
             node = self.env.Command(output, prog, [ [ pname, ">", "${TARGET}"] ])
             ok = self.BuildNodes(node)
@@ -684,7 +691,6 @@ class SConfBase(object):
         else:
             if not os.path.isdir( dirName ):
                 os.makedirs( dirName )
-                node._exists = 1
 
     def _startup(self):
         """Private method. Set up logstream, and set the environment
diff --git a/engine/SCons/SConsign.py b/engine/SCons/SConsign.py
index bb893c1..e31a3eb 100644
--- a/engine/SCons/SConsign.py
+++ b/engine/SCons/SConsign.py
@@ -27,7 +27,7 @@ Writing and reading information to the .sconsign file or files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/SConsign.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/SConsign.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.compat
 
@@ -122,16 +122,40 @@ class SConsignEntry(object):
     XXX As coded below, we do expect a '.binfo' attribute to be added,
     but we'll probably generalize this in the next refactorings.
     """
-    current_version_id = 1
+    __slots__ = ("binfo", "ninfo", "__weakref__")
+    current_version_id = 2
+    
     def __init__(self):
         # Create an object attribute from the class attribute so it ends up
         # in the pickled data in the .sconsign file.
-        _version_id = self.current_version_id
+        #_version_id = self.current_version_id
+        pass
+    
     def convert_to_sconsign(self):
         self.binfo.convert_to_sconsign()
+        
     def convert_from_sconsign(self, dir, name):
         self.binfo.convert_from_sconsign(dir, name)
 
+    def __getstate__(self):
+        state = getattr(self, '__dict__', {}).copy()
+        for obj in type(self).mro():
+            for name in getattr(obj,'__slots__',()):
+                if hasattr(self, name):
+                    state[name] = getattr(self, name)
+
+        state['_version_id'] = self.current_version_id
+        try:
+            del state['__weakref__']
+        except KeyError:
+            pass
+        return state
+
+    def __setstate__(self, state):
+        for key, value in state.items():
+            if key not in ('_version_id','__weakref__'):
+                setattr(self, key, value)
+        
 class Base(object):
     """
     This is the controlling class for the signatures for the collection of
@@ -202,7 +226,7 @@ class DB(Base):
         # Read using the path relative to the top of the Repository
         # (self.dir.tpath) from which we're fetching the signature
         # information.
-        path = normcase(dir.tpath)
+        path = normcase(dir.get_tpath())
         try:
             rawentries = db[path]
         except KeyError:
@@ -217,7 +241,7 @@ class DB(Base):
                 raise
             except Exception, e:
                 SCons.Warnings.warn(SCons.Warnings.CorruptSConsignWarning,
-                                    "Ignoring corrupt sconsign entry : %s (%s)\n"%(self.dir.tpath, e))
+                                    "Ignoring corrupt sconsign entry : %s (%s)\n"%(self.dir.get_tpath(), e))
             for key, entry in self.entries.items():
                 entry.convert_from_sconsign(dir, key)
 
@@ -244,7 +268,7 @@ class DB(Base):
         # directory (self.dir.path), not relative to the top of
         # the Repository; we only write to our own .sconsign file,
         # not to .sconsign files in Repositories.
-        path = normcase(self.dir.path)
+        path = normcase(self.dir.get_internal_path())
         for key, entry in self.entries.items():
             entry.convert_to_sconsign()
         db[path] = pickle.dumps(self.entries, 1)
@@ -287,7 +311,7 @@ class DirFile(Dir):
         """
 
         self.dir = dir
-        self.sconsign = os.path.join(dir.path, '.sconsign')
+        self.sconsign = os.path.join(dir.get_internal_path(), '.sconsign')
 
         try:
             fp = open(self.sconsign, 'rb')
@@ -323,7 +347,7 @@ class DirFile(Dir):
 
         self.merge()
 
-        temp = os.path.join(self.dir.path, '.scons%d' % os.getpid())
+        temp = os.path.join(self.dir.get_internal_path(), '.scons%d' % os.getpid())
         try:
             file = open(temp, 'wb')
             fname = temp
diff --git a/engine/SCons/Scanner/C.py b/engine/SCons/Scanner/C.py
index a1db3f6..33e1145 100644
--- a/engine/SCons/Scanner/C.py
+++ b/engine/SCons/Scanner/C.py
@@ -27,7 +27,7 @@ This module implements the depenency scanner for C/C++ code.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/C.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/C.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/D.py b/engine/SCons/Scanner/D.py
index d4834c2..2c51a09 100644
--- a/engine/SCons/Scanner/D.py
+++ b/engine/SCons/Scanner/D.py
@@ -30,7 +30,7 @@ Coded by Andy Friesen
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/D.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/D.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Scanner/Dir.py b/engine/SCons/Scanner/Dir.py
index 9ede571..7565423 100644
--- a/engine/SCons/Scanner/Dir.py
+++ b/engine/SCons/Scanner/Dir.py
@@ -20,7 +20,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Scanner/Dir.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/Dir.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
@@ -77,7 +77,7 @@ def scan_on_disk(node, env, path=()):
     that and then call the in-memory scanning function.
     """
     try:
-        flist = node.fs.listdir(node.abspath)
+        flist = node.fs.listdir(node.get_abspath())
     except (IOError, OSError):
         return []
     e = node.Entry
diff --git a/engine/SCons/Scanner/Fortran.py b/engine/SCons/Scanner/Fortran.py
index 690f71a..a1f3927 100644
--- a/engine/SCons/Scanner/Fortran.py
+++ b/engine/SCons/Scanner/Fortran.py
@@ -26,7 +26,7 @@ This module implements the dependency scanner for Fortran code.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Scanner/Fortran.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/Fortran.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Scanner/IDL.py b/engine/SCons/Scanner/IDL.py
index 892858c..6758bd2 100644
--- a/engine/SCons/Scanner/IDL.py
+++ b/engine/SCons/Scanner/IDL.py
@@ -28,7 +28,7 @@ Definition Language) files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/IDL.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/IDL.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/LaTeX.py b/engine/SCons/Scanner/LaTeX.py
index 2c4fcbb..aed074c 100644
--- a/engine/SCons/Scanner/LaTeX.py
+++ b/engine/SCons/Scanner/LaTeX.py
@@ -27,7 +27,7 @@ This module implements the dependency scanner for LaTeX code.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/LaTeX.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/LaTeX.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Scanner/Prog.py b/engine/SCons/Scanner/Prog.py
index 48dcddf..c0511dc 100644
--- a/engine/SCons/Scanner/Prog.py
+++ b/engine/SCons/Scanner/Prog.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/Prog.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/Prog.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Node
 import SCons.Node.FS
diff --git a/engine/SCons/Scanner/RC.py b/engine/SCons/Scanner/RC.py
index 29044c0..f73b47e 100644
--- a/engine/SCons/Scanner/RC.py
+++ b/engine/SCons/Scanner/RC.py
@@ -28,7 +28,7 @@ Definition Language) files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/RC.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/RC.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/__init__.py b/engine/SCons/Scanner/__init__.py
index cb73a69..d51cb9e 100644
--- a/engine/SCons/Scanner/__init__.py
+++ b/engine/SCons/Scanner/__init__.py
@@ -27,7 +27,7 @@ The Scanner package for the SCons software construction utility.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Script/Interactive.py b/engine/SCons/Script/Interactive.py
index b650e84..afcde0c 100644
--- a/engine/SCons/Script/Interactive.py
+++ b/engine/SCons/Script/Interactive.py
@@ -20,7 +20,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Script/Interactive.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Script/Interactive.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """
 SCons interactive mode
diff --git a/engine/SCons/Script/Main.py b/engine/SCons/Script/Main.py
index eb3b5de..6684fbd 100644
--- a/engine/SCons/Script/Main.py
+++ b/engine/SCons/Script/Main.py
@@ -34,7 +34,7 @@ deprecated_python_version = (2, 7, 0)
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Script/Main.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Script/Main.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.compat
 
@@ -214,7 +214,7 @@ class BuildTask(SCons.Taskmaster.OutOfDateTask):
         if self.top and not t.has_builder() and not t.side_effect:
             if not t.exists():
                 if t.__class__.__name__ in ('File', 'Dir', 'Entry'):
-                    errstr="Do not know how to make %s target `%s' (%s)." % (t.__class__.__name__, t, t.abspath)
+                    errstr="Do not know how to make %s target `%s' (%s)." % (t.__class__.__name__, t, t.get_abspath())
                 else: # Alias or Python or ...
                     errstr="Do not know how to make %s target `%s'." % (t.__class__.__name__, t)
                 sys.stderr.write("scons: *** " + errstr)
@@ -351,7 +351,7 @@ class CleanTask(SCons.Taskmaster.AlwaysTask):
         if target in SCons.Environment.CleanTargets:
             files = SCons.Environment.CleanTargets[target]
             for f in files:
-                self.fs_delete(f.abspath, str(f), remove)
+                self.fs_delete(f.get_abspath(), str(f), remove)
 
     def show(self):
         for t in self._get_files_to_clean():
@@ -672,7 +672,7 @@ def _set_debug_values(options):
     if "prepare" in debug_values:
         SCons.Taskmaster.print_prepare = 1
     if "duplicate" in debug_values:
-        SCons.Node.FS.print_duplicate = 1
+        SCons.Node.print_duplicate = 1
 
 def _create_path(plist):
     path = '.'
@@ -946,9 +946,9 @@ def _main(parser):
         progress_display.set_mode(0)
 
     if options.site_dir:
-        _load_site_scons_dir(d.path, options.site_dir)
+        _load_site_scons_dir(d.get_internal_path(), options.site_dir)
     elif not options.no_site_dir:
-        _load_all_site_scons_dirs(d.path)
+        _load_all_site_scons_dirs(d.get_internal_path())
 
     if options.include_dir:
         sys.path = options.include_dir + sys.path
@@ -1111,7 +1111,6 @@ def _build_targets(fs, options, targets, target_top):
     display.set_mode(not options.silent)
     SCons.Action.print_actions          = not options.silent
     SCons.Action.execute_actions        = not options.no_exec
-    SCons.Node.FS.do_store_info         = not options.no_exec
     SCons.Node.do_store_info            = not options.no_exec
     SCons.SConf.dryrun                  = options.no_exec
 
diff --git a/engine/SCons/Script/SConsOptions.py b/engine/SCons/Script/SConsOptions.py
index 2258533..7e458aa 100644
--- a/engine/SCons/Script/SConsOptions.py
+++ b/engine/SCons/Script/SConsOptions.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Script/SConsOptions.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Script/SConsOptions.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import optparse
 import re
diff --git a/engine/SCons/Script/SConscript.py b/engine/SCons/Script/SConscript.py
index 9240717..ead6f2e 100644
--- a/engine/SCons/Script/SConscript.py
+++ b/engine/SCons/Script/SConscript.py
@@ -28,7 +28,7 @@ files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Script/SConscript.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Script/SConscript.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons
 import SCons.Action
@@ -265,7 +265,7 @@ def _SConscript(fs, *files, **kw):
                             call_stack[-1].globals.update({__file__:old_file})
                 else:
                     SCons.Warnings.warn(SCons.Warnings.MissingSConscriptWarning,
-                             "Ignoring missing SConscript '%s'" % f.path)
+                             "Ignoring missing SConscript '%s'" % f.get_internal_path())
 
         finally:
             SCons.Script.sconscript_reading = SCons.Script.sconscript_reading - 1
@@ -438,7 +438,7 @@ class SConsEnvironment(SCons.Environment.Base):
                     fname = fn.get_path(src_dir)
                     files = [os.path.join(str(variant_dir), fname)]
                 else:
-                    files = [fn.abspath]
+                    files = [fn.get_abspath()]
                 kw['src_dir'] = variant_dir
             self.fs.VariantDir(variant_dir, src_dir, duplicate)
 
diff --git a/engine/SCons/Script/__init__.py b/engine/SCons/Script/__init__.py
index f2cce2d..c21882f 100644
--- a/engine/SCons/Script/__init__.py
+++ b/engine/SCons/Script/__init__.py
@@ -34,7 +34,7 @@ it goes here.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Script/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Script/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import time
 start_time = time.time()
diff --git a/engine/SCons/Sig.py b/engine/SCons/Sig.py
index 702889c..e949cfb 100644
--- a/engine/SCons/Sig.py
+++ b/engine/SCons/Sig.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Sig.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Sig.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Sig module hierarchy
 
diff --git a/engine/SCons/Subst.py b/engine/SCons/Subst.py
index 565e15c..da0fa68 100644
--- a/engine/SCons/Subst.py
+++ b/engine/SCons/Subst.py
@@ -26,7 +26,7 @@ SCons string substitution.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Subst.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Subst.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import collections
 import re
diff --git a/engine/SCons/Taskmaster.py b/engine/SCons/Taskmaster.py
index bc008f3..b303f79 100644
--- a/engine/SCons/Taskmaster.py
+++ b/engine/SCons/Taskmaster.py
@@ -47,7 +47,7 @@ interface and the SCons build engine.  There are two key classes here:
         target(s) that it decides need to be evaluated and/or built.
 """
 
-__revision__ = "src/engine/SCons/Taskmaster.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Taskmaster.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from itertools import chain
 import operator
@@ -242,7 +242,7 @@ class Task(object):
                 #
                 for t in cached_targets:
                     try:
-                        t.fs.unlink(t.path)
+                        t.fs.unlink(t.get_internal_path())
                     except (IOError, OSError):
                         pass
                 self.targets[0].build()
diff --git a/engine/SCons/Tool/386asm.py b/engine/SCons/Tool/386asm.py
index 2559d4a..06d271e 100644
--- a/engine/SCons/Tool/386asm.py
+++ b/engine/SCons/Tool/386asm.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/386asm.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/386asm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.PharLapCommon import addPharLapPaths
 import SCons.Util
diff --git a/engine/SCons/Tool/BitKeeper.py b/engine/SCons/Tool/BitKeeper.py
index 5956a14..9df9f59 100644
--- a/engine/SCons/Tool/BitKeeper.py
+++ b/engine/SCons/Tool/BitKeeper.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/BitKeeper.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/BitKeeper.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/CVS.py b/engine/SCons/Tool/CVS.py
index 07d8d58..14bc18e 100644
--- a/engine/SCons/Tool/CVS.py
+++ b/engine/SCons/Tool/CVS.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/CVS.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/CVS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/DCommon.py b/engine/SCons/Tool/DCommon.py
index cc08f72..db03660 100644
--- a/engine/SCons/Tool/DCommon.py
+++ b/engine/SCons/Tool/DCommon.py
@@ -28,7 +28,7 @@ Coded by Russel Winder (russel@winder.org.uk)
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/DCommon.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/DCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/FortranCommon.py b/engine/SCons/Tool/FortranCommon.py
index 46b9aa5..b8ff7d9 100644
--- a/engine/SCons/Tool/FortranCommon.py
+++ b/engine/SCons/Tool/FortranCommon.py
@@ -27,7 +27,7 @@ Stuff for processing Fortran, common to all fortran dialects.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/FortranCommon.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/FortranCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import re
 import os.path
diff --git a/engine/SCons/Tool/GettextCommon.py b/engine/SCons/Tool/GettextCommon.py
index 9e94d5e..af9b074 100644
--- a/engine/SCons/Tool/GettextCommon.py
+++ b/engine/SCons/Tool/GettextCommon.py
@@ -24,7 +24,7 @@ Used by several tools of `gettext` toolset.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/GettextCommon.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/GettextCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Warnings
 import re
diff --git a/engine/SCons/Tool/JavaCommon.py b/engine/SCons/Tool/JavaCommon.py
index bbb982c..8b1e48e 100644
--- a/engine/SCons/Tool/JavaCommon.py
+++ b/engine/SCons/Tool/JavaCommon.py
@@ -27,7 +27,7 @@ Stuff for processing Java.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/JavaCommon.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/JavaCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/MSCommon/__init__.py b/engine/SCons/Tool/MSCommon/__init__.py
index 4ac3fae..90cb0bc 100644
--- a/engine/SCons/Tool/MSCommon/__init__.py
+++ b/engine/SCons/Tool/MSCommon/__init__.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """
 Common functions for Microsoft Visual Studio and Visual C/C++.
diff --git a/engine/SCons/Tool/MSCommon/arch.py b/engine/SCons/Tool/MSCommon/arch.py
index acd6383..5bc7ea5 100644
--- a/engine/SCons/Tool/MSCommon/arch.py
+++ b/engine/SCons/Tool/MSCommon/arch.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/arch.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/arch.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Module to define supported Windows chip architectures.
 """
diff --git a/engine/SCons/Tool/MSCommon/common.py b/engine/SCons/Tool/MSCommon/common.py
index 3a6c505..60d7d40 100644
--- a/engine/SCons/Tool/MSCommon/common.py
+++ b/engine/SCons/Tool/MSCommon/common.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/common.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/common.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """
 Common helper functions for working with the Microsoft tool chain.
diff --git a/engine/SCons/Tool/MSCommon/netframework.py b/engine/SCons/Tool/MSCommon/netframework.py
index 24e4218..0606e27 100644
--- a/engine/SCons/Tool/MSCommon/netframework.py
+++ b/engine/SCons/Tool/MSCommon/netframework.py
@@ -20,7 +20,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/netframework.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/netframework.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """
 """
diff --git a/engine/SCons/Tool/MSCommon/sdk.py b/engine/SCons/Tool/MSCommon/sdk.py
index c455f4d..537f367 100644
--- a/engine/SCons/Tool/MSCommon/sdk.py
+++ b/engine/SCons/Tool/MSCommon/sdk.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/sdk.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/sdk.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Module to detect the Platform/Windows SDK
 
diff --git a/engine/SCons/Tool/MSCommon/vc.py b/engine/SCons/Tool/MSCommon/vc.py
index 0db8a8c..02a32a0 100644
--- a/engine/SCons/Tool/MSCommon/vc.py
+++ b/engine/SCons/Tool/MSCommon/vc.py
@@ -30,7 +30,7 @@
 #   * test on 64 bits XP +  VS 2005 (and VS 6 if possible)
 #   * SDK
 #   * Assembly
-__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Module for Visual C/C++ detection and configuration.
 """
diff --git a/engine/SCons/Tool/MSCommon/vs.py b/engine/SCons/Tool/MSCommon/vs.py
index d122ec6..619cbe5 100644
--- a/engine/SCons/Tool/MSCommon/vs.py
+++ b/engine/SCons/Tool/MSCommon/vs.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/vs.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """Module to detect Visual Studio and/or Visual C/C++
 """
diff --git a/engine/SCons/Tool/Perforce.py b/engine/SCons/Tool/Perforce.py
index 5ab84e3..ddff25f 100644
--- a/engine/SCons/Tool/Perforce.py
+++ b/engine/SCons/Tool/Perforce.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/Perforce.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/Perforce.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 
diff --git a/engine/SCons/Tool/PharLapCommon.py b/engine/SCons/Tool/PharLapCommon.py
index ca3aced..576dea1 100644
--- a/engine/SCons/Tool/PharLapCommon.py
+++ b/engine/SCons/Tool/PharLapCommon.py
@@ -29,7 +29,7 @@ Phar Lap ETS tool chain.  Right now, this is linkloc and
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/PharLapCommon.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/PharLapCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/RCS.py b/engine/SCons/Tool/RCS.py
index d2616c3..d63bcd4 100644
--- a/engine/SCons/Tool/RCS.py
+++ b/engine/SCons/Tool/RCS.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/RCS.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/RCS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/SCCS.py b/engine/SCons/Tool/SCCS.py
index b582a09..76f69e7 100644
--- a/engine/SCons/Tool/SCCS.py
+++ b/engine/SCons/Tool/SCCS.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/SCCS.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/SCCS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/Subversion.py b/engine/SCons/Tool/Subversion.py
index 29390a9..85470b1 100644
--- a/engine/SCons/Tool/Subversion.py
+++ b/engine/SCons/Tool/Subversion.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/Subversion.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/Subversion.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/__init__.py b/engine/SCons/Tool/__init__.py
index 944f3dc..bb9729a 100644
--- a/engine/SCons/Tool/__init__.py
+++ b/engine/SCons/Tool/__init__.py
@@ -35,7 +35,7 @@ tool definition.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import imp
 import sys
@@ -340,7 +340,7 @@ symlinks for the platform we are on"""
 
     if version:
         # here we need the full pathname so the links end up in the right directory
-        libname = getattr(target[0].attributes, 'shlibpath', target[0].path)
+        libname = getattr(target[0].attributes, 'shlibpath', target[0].get_internal_path())
         if Verbose:
             print "VerShLib: target lib is = ", libname
             print "VerShLib: name is = ", target[0].name
diff --git a/engine/SCons/Tool/aixc++.py b/engine/SCons/Tool/aixc++.py
index 96caa8a..864fcdf 100644
--- a/engine/SCons/Tool/aixc++.py
+++ b/engine/SCons/Tool/aixc++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixc++.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixc++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/aixcc.py b/engine/SCons/Tool/aixcc.py
index c771a6d..02e0649 100644
--- a/engine/SCons/Tool/aixcc.py
+++ b/engine/SCons/Tool/aixcc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixcc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/aixf77.py b/engine/SCons/Tool/aixf77.py
index 4cc69c1..5327cf7 100644
--- a/engine/SCons/Tool/aixf77.py
+++ b/engine/SCons/Tool/aixf77.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixf77.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixf77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/aixlink.py b/engine/SCons/Tool/aixlink.py
index 89cf399..7ad9cc6 100644
--- a/engine/SCons/Tool/aixlink.py
+++ b/engine/SCons/Tool/aixlink.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixlink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixlink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/applelink.py b/engine/SCons/Tool/applelink.py
index 46b7995..9ef1b75 100644
--- a/engine/SCons/Tool/applelink.py
+++ b/engine/SCons/Tool/applelink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/applelink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/applelink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/ar.py b/engine/SCons/Tool/ar.py
index ef72779..2d7f7b9 100644
--- a/engine/SCons/Tool/ar.py
+++ b/engine/SCons/Tool/ar.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ar.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/as.py b/engine/SCons/Tool/as.py
index 0c87af6..6c7304f 100644
--- a/engine/SCons/Tool/as.py
+++ b/engine/SCons/Tool/as.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/as.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/as.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/bcc32.py b/engine/SCons/Tool/bcc32.py
index 50eb4f4..a8295a3 100644
--- a/engine/SCons/Tool/bcc32.py
+++ b/engine/SCons/Tool/bcc32.py
@@ -27,7 +27,7 @@ XXX
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/bcc32.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/bcc32.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/c++.py b/engine/SCons/Tool/c++.py
index 42c42f0..580bf9c 100644
--- a/engine/SCons/Tool/c++.py
+++ b/engine/SCons/Tool/c++.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/c++.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/c++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/cc.py b/engine/SCons/Tool/cc.py
index a2581b8..7332ad0 100644
--- a/engine/SCons/Tool/cc.py
+++ b/engine/SCons/Tool/cc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/cc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/cc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Tool
 import SCons.Defaults
diff --git a/engine/SCons/Tool/cvf.py b/engine/SCons/Tool/cvf.py
index a2ad78f..89ac9fb 100644
--- a/engine/SCons/Tool/cvf.py
+++ b/engine/SCons/Tool/cvf.py
@@ -27,7 +27,7 @@ Tool-specific initialization for the Compaq Visual Fortran compiler.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/cvf.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/cvf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import fortran
 
diff --git a/engine/SCons/Tool/default.py b/engine/SCons/Tool/default.py
index 7c96b20..35e872c 100644
--- a/engine/SCons/Tool/default.py
+++ b/engine/SCons/Tool/default.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/default.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/default.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Tool
 
diff --git a/engine/SCons/Tool/dmd.py b/engine/SCons/Tool/dmd.py
index bbd2383..327da15 100644
--- a/engine/SCons/Tool/dmd.py
+++ b/engine/SCons/Tool/dmd.py
@@ -58,7 +58,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dmd.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dmd.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import subprocess
diff --git a/engine/SCons/Tool/docbook/__init__.py b/engine/SCons/Tool/docbook/__init__.py
index 26a1a95..aead43c 100644
--- a/engine/SCons/Tool/docbook/__init__.py
+++ b/engine/SCons/Tool/docbook/__init__.py
@@ -448,7 +448,7 @@ def DocbookEpub(env, target, source=None, *args, **kw):
         Ensure all the resources in the manifest are present in the OEBPS directory.
         """
         hrefs = []
-        content_file = os.path.join(source[0].abspath, 'content.opf')
+        content_file = os.path.join(source[0].get_abspath(), 'content.opf')
         if not os.path.isfile(content_file):
             return
         
@@ -491,9 +491,9 @@ def DocbookEpub(env, target, source=None, *args, **kw):
         for href in hrefs:
             # If the resource was not already created by DocBook XSL itself, 
             # copy it into the OEBPS folder
-            referenced_file = os.path.join(source[0].abspath, href)
+            referenced_file = os.path.join(source[0].get_abspath(), href)
             if not os.path.exists(referenced_file):
-                shutil.copy(href, os.path.join(source[0].abspath, href))
+                shutil.copy(href, os.path.join(source[0].get_abspath(), href))
         
     # Init list of targets/sources
     target, source = __extend_targets_sources(target, source)
diff --git a/engine/SCons/Tool/dvi.py b/engine/SCons/Tool/dvi.py
index 7a67745..aba7168 100644
--- a/engine/SCons/Tool/dvi.py
+++ b/engine/SCons/Tool/dvi.py
@@ -27,7 +27,7 @@ Common DVI Builder definition for various other Tool modules that use it.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dvi.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dvi.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Builder
 import SCons.Tool
diff --git a/engine/SCons/Tool/dvipdf.py b/engine/SCons/Tool/dvipdf.py
index 882150f..0a6dde7 100644
--- a/engine/SCons/Tool/dvipdf.py
+++ b/engine/SCons/Tool/dvipdf.py
@@ -30,7 +30,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/dvipdf.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dvipdf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/engine/SCons/Tool/dvips.py b/engine/SCons/Tool/dvips.py
index 681b9fa..f72f2fe 100644
--- a/engine/SCons/Tool/dvips.py
+++ b/engine/SCons/Tool/dvips.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dvips.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dvips.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/f03.py b/engine/SCons/Tool/f03.py
index 232c599..77165ad 100644
--- a/engine/SCons/Tool/f03.py
+++ b/engine/SCons/Tool/f03.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f03.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f03.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/f77.py b/engine/SCons/Tool/f77.py
index c0661fa..593c517 100644
--- a/engine/SCons/Tool/f77.py
+++ b/engine/SCons/Tool/f77.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f77.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Scanner.Fortran
diff --git a/engine/SCons/Tool/f90.py b/engine/SCons/Tool/f90.py
index 18d2132..c4a8df3 100644
--- a/engine/SCons/Tool/f90.py
+++ b/engine/SCons/Tool/f90.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f90.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f90.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Scanner.Fortran
diff --git a/engine/SCons/Tool/f95.py b/engine/SCons/Tool/f95.py
index ca45326..f361e1d 100644
--- a/engine/SCons/Tool/f95.py
+++ b/engine/SCons/Tool/f95.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f95.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f95.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/filesystem.py b/engine/SCons/Tool/filesystem.py
index 5508583..df57579 100644
--- a/engine/SCons/Tool/filesystem.py
+++ b/engine/SCons/Tool/filesystem.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/filesystem.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/filesystem.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons
 from SCons.Tool.install import copyFunc
diff --git a/engine/SCons/Tool/fortran.py b/engine/SCons/Tool/fortran.py
index c07e473..7a51321 100644
--- a/engine/SCons/Tool/fortran.py
+++ b/engine/SCons/Tool/fortran.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/fortran.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/fortran.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Tool/g++.py b/engine/SCons/Tool/g++.py
index e4f4638..8246862 100644
--- a/engine/SCons/Tool/g++.py
+++ b/engine/SCons/Tool/g++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/g++.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/g++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/g77.py b/engine/SCons/Tool/g77.py
index 1cc9d7a..e09cf16 100644
--- a/engine/SCons/Tool/g77.py
+++ b/engine/SCons/Tool/g77.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/g77.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/g77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 from SCons.Tool.FortranCommon import add_all_to_env, add_f77_to_env
diff --git a/engine/SCons/Tool/gas.py b/engine/SCons/Tool/gas.py
index 5c2ab41..f987b95 100644
--- a/engine/SCons/Tool/gas.py
+++ b/engine/SCons/Tool/gas.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gas.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gas.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 as_module = __import__('as', globals(), locals(), [])
 
diff --git a/engine/SCons/Tool/gcc.py b/engine/SCons/Tool/gcc.py
index 4dc0048..d2375c6 100644
--- a/engine/SCons/Tool/gcc.py
+++ b/engine/SCons/Tool/gcc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gcc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import cc
 import os
diff --git a/engine/SCons/Tool/gdc.py b/engine/SCons/Tool/gdc.py
index 0ba5418..7a67501 100644
--- a/engine/SCons/Tool/gdc.py
+++ b/engine/SCons/Tool/gdc.py
@@ -46,7 +46,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gdc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gdc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/engine/SCons/Tool/gettext.py b/engine/SCons/Tool/gettext.py
index b03729c..e53ebdb 100644
--- a/engine/SCons/Tool/gettext.py
+++ b/engine/SCons/Tool/gettext.py
@@ -23,7 +23,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/gettext.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gettext.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 #############################################################################
 def generate(env,**kw):
diff --git a/engine/SCons/Tool/gfortran.py b/engine/SCons/Tool/gfortran.py
index 575988c..02da302 100644
--- a/engine/SCons/Tool/gfortran.py
+++ b/engine/SCons/Tool/gfortran.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gfortran.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gfortran.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/gnulink.py b/engine/SCons/Tool/gnulink.py
index 5c0eee7..81c0130 100644
--- a/engine/SCons/Tool/gnulink.py
+++ b/engine/SCons/Tool/gnulink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gnulink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gnulink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/gs.py b/engine/SCons/Tool/gs.py
index f5d7d1d..3e2eecc 100644
--- a/engine/SCons/Tool/gs.py
+++ b/engine/SCons/Tool/gs.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gs.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/hpc++.py b/engine/SCons/Tool/hpc++.py
index d0ea716..eb23e94 100644
--- a/engine/SCons/Tool/hpc++.py
+++ b/engine/SCons/Tool/hpc++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hpc++.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/hpc++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/hpcc.py b/engine/SCons/Tool/hpcc.py
index c3fae40..827460d 100644
--- a/engine/SCons/Tool/hpcc.py
+++ b/engine/SCons/Tool/hpcc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hpcc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/hpcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/hplink.py b/engine/SCons/Tool/hplink.py
index 08f622c..e3512a2 100644
--- a/engine/SCons/Tool/hplink.py
+++ b/engine/SCons/Tool/hplink.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hplink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/hplink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/icc.py b/engine/SCons/Tool/icc.py
index 5b491d0..d6e3663 100644
--- a/engine/SCons/Tool/icc.py
+++ b/engine/SCons/Tool/icc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/icc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/icc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import cc
 
diff --git a/engine/SCons/Tool/icl.py b/engine/SCons/Tool/icl.py
index 1940518..88c6881 100644
--- a/engine/SCons/Tool/icl.py
+++ b/engine/SCons/Tool/icl.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/icl.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/icl.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Tool.intelc
 
diff --git a/engine/SCons/Tool/ifl.py b/engine/SCons/Tool/ifl.py
index 3d1d6f1..ef5bdd6 100644
--- a/engine/SCons/Tool/ifl.py
+++ b/engine/SCons/Tool/ifl.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ifl.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ifl.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 from SCons.Scanner.Fortran import FortranScan
diff --git a/engine/SCons/Tool/ifort.py b/engine/SCons/Tool/ifort.py
index cd01308..275c5c8 100644
--- a/engine/SCons/Tool/ifort.py
+++ b/engine/SCons/Tool/ifort.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ifort.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ifort.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 from SCons.Scanner.Fortran import FortranScan
diff --git a/engine/SCons/Tool/ilink.py b/engine/SCons/Tool/ilink.py
index 9751e23..b2c3513 100644
--- a/engine/SCons/Tool/ilink.py
+++ b/engine/SCons/Tool/ilink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ilink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ilink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/ilink32.py b/engine/SCons/Tool/ilink32.py
index a5fef95..a2f1e67 100644
--- a/engine/SCons/Tool/ilink32.py
+++ b/engine/SCons/Tool/ilink32.py
@@ -27,7 +27,7 @@ XXX
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ilink32.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ilink32.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Tool
 import SCons.Tool.bcc32
diff --git a/engine/SCons/Tool/install.py b/engine/SCons/Tool/install.py
index d310ee6..0b3642c 100644
--- a/engine/SCons/Tool/install.py
+++ b/engine/SCons/Tool/install.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/install.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/install.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import re
diff --git a/engine/SCons/Tool/intelc.py b/engine/SCons/Tool/intelc.py
index dfc7a2b..256f32e 100644
--- a/engine/SCons/Tool/intelc.py
+++ b/engine/SCons/Tool/intelc.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Tool/intelc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/intelc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import math, sys, os.path, glob, string, re
 
diff --git a/engine/SCons/Tool/ipkg.py b/engine/SCons/Tool/ipkg.py
index f62083a..bf2b496 100644
--- a/engine/SCons/Tool/ipkg.py
+++ b/engine/SCons/Tool/ipkg.py
@@ -33,7 +33,7 @@ packages fake_root.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ipkg.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ipkg.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 
diff --git a/engine/SCons/Tool/jar.py b/engine/SCons/Tool/jar.py
index 5cd01b9..50d3fc0 100644
--- a/engine/SCons/Tool/jar.py
+++ b/engine/SCons/Tool/jar.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/jar.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/jar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Subst
 import SCons.Util
diff --git a/engine/SCons/Tool/javac.py b/engine/SCons/Tool/javac.py
index d52066f..bb57208 100644
--- a/engine/SCons/Tool/javac.py
+++ b/engine/SCons/Tool/javac.py
@@ -30,7 +30,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/javac.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/javac.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/javah.py b/engine/SCons/Tool/javah.py
index 808393a..1d667b9 100644
--- a/engine/SCons/Tool/javah.py
+++ b/engine/SCons/Tool/javah.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/javah.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/javah.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/latex.py b/engine/SCons/Tool/latex.py
index 24d13d0..69413cc 100644
--- a/engine/SCons/Tool/latex.py
+++ b/engine/SCons/Tool/latex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/latex.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/latex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/engine/SCons/Tool/ldc.py b/engine/SCons/Tool/ldc.py
index b0e5634..c1b558f 100644
--- a/engine/SCons/Tool/ldc.py
+++ b/engine/SCons/Tool/ldc.py
@@ -46,7 +46,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ldc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ldc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import subprocess
diff --git a/engine/SCons/Tool/lex.py b/engine/SCons/Tool/lex.py
index a58f6d7..9f6557d 100644
--- a/engine/SCons/Tool/lex.py
+++ b/engine/SCons/Tool/lex.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/lex.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/lex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/link.py b/engine/SCons/Tool/link.py
index 089b6e5..6874301 100644
--- a/engine/SCons/Tool/link.py
+++ b/engine/SCons/Tool/link.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/link.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/link.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import re
 
@@ -86,7 +86,7 @@ def shlib_emitter(target, source, env):
             # the version number
             target[0].attributes.shlibname = version_names[0]
             shlib = env.File(version_names[0], directory=target[0].get_dir())
-            target[0].attributes.shlibpath = shlib.path
+            target[0].attributes.shlibpath = shlib.get_internal_path()
             for name in version_names[1:]:
                 env.SideEffect(name, shlib)
                 env.Clean(shlib, name)
diff --git a/engine/SCons/Tool/linkloc.py b/engine/SCons/Tool/linkloc.py
index 023cdd3..d2c218f 100644
--- a/engine/SCons/Tool/linkloc.py
+++ b/engine/SCons/Tool/linkloc.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/linkloc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/linkloc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/m4.py b/engine/SCons/Tool/m4.py
index 7b471e2..dfc4665 100644
--- a/engine/SCons/Tool/m4.py
+++ b/engine/SCons/Tool/m4.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/m4.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/m4.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/masm.py b/engine/SCons/Tool/masm.py
index 9a4dbee..7036de6 100644
--- a/engine/SCons/Tool/masm.py
+++ b/engine/SCons/Tool/masm.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/masm.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/masm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/midl.py b/engine/SCons/Tool/midl.py
index 266b422..0d93073 100644
--- a/engine/SCons/Tool/midl.py
+++ b/engine/SCons/Tool/midl.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/midl.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/midl.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/mingw.py b/engine/SCons/Tool/mingw.py
index 60821d6..236ce32 100644
--- a/engine/SCons/Tool/mingw.py
+++ b/engine/SCons/Tool/mingw.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mingw.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mingw.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/msgfmt.py b/engine/SCons/Tool/msgfmt.py
index 9e3f437..4cfe686 100644
--- a/engine/SCons/Tool/msgfmt.py
+++ b/engine/SCons/Tool/msgfmt.py
@@ -21,7 +21,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msgfmt.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msgfmt.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Builder import BuilderBase
 #############################################################################
diff --git a/engine/SCons/Tool/msginit.py b/engine/SCons/Tool/msginit.py
index 2240658..53046d6 100644
--- a/engine/SCons/Tool/msginit.py
+++ b/engine/SCons/Tool/msginit.py
@@ -24,7 +24,7 @@ Tool specific initialization of msginit tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msginit.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msginit.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Warnings
 import SCons.Builder
diff --git a/engine/SCons/Tool/msgmerge.py b/engine/SCons/Tool/msgmerge.py
index e5012a1..e2d06f4 100644
--- a/engine/SCons/Tool/msgmerge.py
+++ b/engine/SCons/Tool/msgmerge.py
@@ -24,7 +24,7 @@ Tool specific initialization for `msgmerge` tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msgmerge.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msgmerge.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 #############################################################################
 def _update_or_init_po_files(target, source, env):
diff --git a/engine/SCons/Tool/mslib.py b/engine/SCons/Tool/mslib.py
index baab454..a82e88d 100644
--- a/engine/SCons/Tool/mslib.py
+++ b/engine/SCons/Tool/mslib.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mslib.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mslib.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/mslink.py b/engine/SCons/Tool/mslink.py
index 158b700..6906303 100644
--- a/engine/SCons/Tool/mslink.py
+++ b/engine/SCons/Tool/mslink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mslink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mslink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
@@ -216,7 +216,7 @@ def embedManifestDllCheck(target, source, env):
     """Function run by embedManifestDllCheckAction to check for existence of manifest
     and other conditions, and embed the manifest by calling embedManifestDllAction if so."""
     if env.get('WINDOWS_EMBED_MANIFEST', 0):
-        manifestSrc = target[0].abspath + '.manifest'
+        manifestSrc = target[0].get_abspath() + '.manifest'
         if os.path.exists(manifestSrc):
             ret = (embedManifestDllAction) ([target[0]],None,env)        
             if ret:
@@ -230,7 +230,7 @@ def embedManifestExeCheck(target, source, env):
     """Function run by embedManifestExeCheckAction to check for existence of manifest
     and other conditions, and embed the manifest by calling embedManifestExeAction if so."""
     if env.get('WINDOWS_EMBED_MANIFEST', 0):
-        manifestSrc = target[0].abspath + '.manifest'
+        manifestSrc = target[0].get_abspath() + '.manifest'
         if os.path.exists(manifestSrc):
             ret = (embedManifestExeAction) ([target[0]],None,env)
             if ret:
diff --git a/engine/SCons/Tool/mssdk.py b/engine/SCons/Tool/mssdk.py
index 649f83c..3836817 100644
--- a/engine/SCons/Tool/mssdk.py
+++ b/engine/SCons/Tool/mssdk.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mssdk.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mssdk.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 """engine.SCons.Tool.mssdk
 
diff --git a/engine/SCons/Tool/msvc.py b/engine/SCons/Tool/msvc.py
index cace2ee..03d65ee 100644
--- a/engine/SCons/Tool/msvc.py
+++ b/engine/SCons/Tool/msvc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/msvc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msvc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/msvs.py b/engine/SCons/Tool/msvs.py
index d7c0955..0ad4c78 100644
--- a/engine/SCons/Tool/msvs.py
+++ b/engine/SCons/Tool/msvs.py
@@ -30,7 +30,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msvs.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msvs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.compat
 
@@ -1983,7 +1983,7 @@ def generate(env):
         env['MSVSSCONSCRIPT'] = default_MSVS_SConscript
 
     env['MSVSSCONS'] = '"%s" -c "%s"' % (python_executable, getExecScriptMain(env))
-    env['MSVSSCONSFLAGS'] = '-C "${MSVSSCONSCRIPT.dir.abspath}" -f ${MSVSSCONSCRIPT.name}'
+    env['MSVSSCONSFLAGS'] = '-C "${MSVSSCONSCRIPT.dir.get_abspath()}" -f ${MSVSSCONSCRIPT.name}'
     env['MSVSSCONSCOM'] = '$MSVSSCONS $MSVSSCONSFLAGS'
     env['MSVSBUILDCOM'] = '$MSVSSCONSCOM "$MSVSBUILDTARGET"'
     env['MSVSREBUILDCOM'] = '$MSVSSCONSCOM "$MSVSBUILDTARGET"'
diff --git a/engine/SCons/Tool/mwcc.py b/engine/SCons/Tool/mwcc.py
index 5519dcc..a130d0f 100644
--- a/engine/SCons/Tool/mwcc.py
+++ b/engine/SCons/Tool/mwcc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mwcc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mwcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/mwld.py b/engine/SCons/Tool/mwld.py
index b196ac3..8f6f3a2 100644
--- a/engine/SCons/Tool/mwld.py
+++ b/engine/SCons/Tool/mwld.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mwld.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mwld.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Tool
 
diff --git a/engine/SCons/Tool/nasm.py b/engine/SCons/Tool/nasm.py
index fd9a2e9..86a7ef8 100644
--- a/engine/SCons/Tool/nasm.py
+++ b/engine/SCons/Tool/nasm.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/nasm.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/nasm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/packaging/__init__.py b/engine/SCons/Tool/packaging/__init__.py
index b7fb43b..2107d5f 100644
--- a/engine/SCons/Tool/packaging/__init__.py
+++ b/engine/SCons/Tool/packaging/__init__.py
@@ -25,7 +25,7 @@ SCons Packaging Tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/packaging/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Environment
 from SCons.Variables import *
@@ -80,7 +80,7 @@ def Tag(env, target, source, *more_tags, **kw_tags):
             #if not k.startswith('PACKAGING_'):
             if k[:10] != 'PACKAGING_':
                 k='PACKAGING_'+k
-            setattr(t, k, v)
+            t.Tag(k, v)
 
 def Package(env, target=None, source=None, **kw):
     """ Entry point for the package tool.
@@ -235,9 +235,11 @@ def copy_attr(f1, f2):
     #pattrs = [x for x in dir(f1) if not hasattr(f2, x) and\
     #                                x.startswith('PACKAGING_')]
     copyit = lambda x: not hasattr(f2, x) and x[:10] == 'PACKAGING_'
-    pattrs = list(filter(copyit, dir(f1)))
-    for attr in pattrs:
-        setattr(f2, attr, getattr(f1, attr))
+    if f1._tags:
+        pattrs = list(filter(copyit, f1._tags))
+        for attr in pattrs:
+            f2.Tag(attr, f1.GetTag(attr))
+
 def putintopackageroot(target, source, env, pkgroot, honor_install_location=1):
     """ Uses the CopyAs builder to copy all source files to the directory given
     in pkgroot.
@@ -262,9 +264,9 @@ def putintopackageroot(target, source, env, pkgroot, honor_install_location=1):
         if file.is_under(pkgroot):
             new_source.append(file)
         else:
-            if hasattr(file, 'PACKAGING_INSTALL_LOCATION') and\
+            if file.GetTag('PACKAGING_INSTALL_LOCATION') and\
                        honor_install_location:
-                new_name=make_path_relative(file.PACKAGING_INSTALL_LOCATION)
+                new_name=make_path_relative(file.GetTag('PACKAGING_INSTALL_LOCATION'))
             else:
                 new_name=make_path_relative(file.get_path())
 
@@ -301,7 +303,7 @@ def stripinstallbuilder(target, source, env):
             for ss in s.sources:
                 n_source.append(ss)
                 copy_attr(s, ss)
-                setattr(ss, 'PACKAGING_INSTALL_LOCATION', s.get_path())
+                ss.Tag('PACKAGING_INSTALL_LOCATION', s.get_path())
 
     return (target, n_source)
 
diff --git a/engine/SCons/Tool/packaging/ipk.py b/engine/SCons/Tool/packaging/ipk.py
index 8ffe3ab..51c3381 100644
--- a/engine/SCons/Tool/packaging/ipk.py
+++ b/engine/SCons/Tool/packaging/ipk.py
@@ -24,7 +24,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/ipk.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/ipk.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Builder
 import SCons.Node.FS
@@ -120,7 +120,7 @@ def build_specfiles(source, target, env):
             return opened_files[needle]
         except KeyError:
             file=filter(lambda x: x.get_path().rfind(needle)!=-1, haystack)[0]
-            opened_files[needle]=open(file.abspath, 'w')
+            opened_files[needle]=open(file.get_abspath(), 'w')
             return opened_files[needle]
 
     control_file=open_file('control', target)
diff --git a/engine/SCons/Tool/packaging/msi.py b/engine/SCons/Tool/packaging/msi.py
index 0f2f94b..41b7c77 100644
--- a/engine/SCons/Tool/packaging/msi.py
+++ b/engine/SCons/Tool/packaging/msi.py
@@ -25,7 +25,7 @@ The msi packager.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/packaging/msi.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/msi.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import SCons
@@ -189,7 +189,7 @@ def build_wxsfile(target, source, env):
     """ compiles a .wxs file from the keywords given in env['msi_spec'] and
         by analyzing the tree of source nodes and their tags.
     """
-    file = open(target[0].abspath, 'w')
+    file = open(target[0].get_abspath(), 'w')
 
     try:
         # Create a document with the Wix root tag
diff --git a/engine/SCons/Tool/packaging/rpm.py b/engine/SCons/Tool/packaging/rpm.py
index f7a6e45..f7e2577 100644
--- a/engine/SCons/Tool/packaging/rpm.py
+++ b/engine/SCons/Tool/packaging/rpm.py
@@ -25,7 +25,7 @@ The rpm packager.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/packaging/rpm.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/rpm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 
@@ -130,8 +130,7 @@ def build_specfile(target, source, env):
     """ Builds a RPM specfile from a dictionary with string metadata and
     by analyzing a tree of nodes.
     """
-    file = open(target[0].abspath, 'w')
-    str  = ""
+    file = open(target[0].get_abspath(), 'w')
 
     try:
         file.write( build_specfile_header(env) )
@@ -279,7 +278,9 @@ def build_specfile_filesection(spec, files):
         tags = {}
         for k in supported_tags.keys():
             try:
-                tags[k]=getattr(file, k)
+                v = file.GetTag(k)
+                if v:
+                    tags[k] = v
             except AttributeError:
                 pass
 
@@ -287,7 +288,7 @@ def build_specfile_filesection(spec, files):
         str = str + SimpleTagCompiler(supported_tags, mandatory=0).compile( tags )
 
         str = str + ' '
-        str = str + file.PACKAGING_INSTALL_LOCATION
+        str = str + file.GetTag('PACKAGING_INSTALL_LOCATION')
         str = str + '\n\n'
 
     return str
diff --git a/engine/SCons/Tool/packaging/src_tarbz2.py b/engine/SCons/Tool/packaging/src_tarbz2.py
index 7c05f05..438fc20 100644
--- a/engine/SCons/Tool/packaging/src_tarbz2.py
+++ b/engine/SCons/Tool/packaging/src_tarbz2.py
@@ -26,7 +26,7 @@ The tarbz2 SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_tarbz2.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/src_tarbz2.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/src_targz.py b/engine/SCons/Tool/packaging/src_targz.py
index 1b16b59..6a85869 100644
--- a/engine/SCons/Tool/packaging/src_targz.py
+++ b/engine/SCons/Tool/packaging/src_targz.py
@@ -26,7 +26,7 @@ The targz SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_targz.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/src_targz.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/src_zip.py b/engine/SCons/Tool/packaging/src_zip.py
index a267a57..e1a1d49 100644
--- a/engine/SCons/Tool/packaging/src_zip.py
+++ b/engine/SCons/Tool/packaging/src_zip.py
@@ -26,7 +26,7 @@ The zip SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_zip.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/src_zip.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/tarbz2.py b/engine/SCons/Tool/packaging/tarbz2.py
index f05c03a..79f8219 100644
--- a/engine/SCons/Tool/packaging/tarbz2.py
+++ b/engine/SCons/Tool/packaging/tarbz2.py
@@ -26,7 +26,7 @@ The tarbz2 SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/tarbz2.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/tarbz2.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/targz.py b/engine/SCons/Tool/packaging/targz.py
index 038f394..eeb3d6a 100644
--- a/engine/SCons/Tool/packaging/targz.py
+++ b/engine/SCons/Tool/packaging/targz.py
@@ -26,7 +26,7 @@ The targz SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/targz.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/targz.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/zip.py b/engine/SCons/Tool/packaging/zip.py
index 32b7bf2..6c4037d 100644
--- a/engine/SCons/Tool/packaging/zip.py
+++ b/engine/SCons/Tool/packaging/zip.py
@@ -26,7 +26,7 @@ The zip SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/zip.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/zip.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/engine/SCons/Tool/pdf.py b/engine/SCons/Tool/pdf.py
index 58193d4..0ccb49b 100644
--- a/engine/SCons/Tool/pdf.py
+++ b/engine/SCons/Tool/pdf.py
@@ -28,7 +28,7 @@ Add an explicit action to run epstopdf to convert .eps files to .pdf
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/pdf.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/pdf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Builder
 import SCons.Tool
diff --git a/engine/SCons/Tool/pdflatex.py b/engine/SCons/Tool/pdflatex.py
index 37fc3a0..42188f4 100644
--- a/engine/SCons/Tool/pdflatex.py
+++ b/engine/SCons/Tool/pdflatex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/pdflatex.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/pdflatex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Util
diff --git a/engine/SCons/Tool/pdftex.py b/engine/SCons/Tool/pdftex.py
index 3bbd603..e38a278 100644
--- a/engine/SCons/Tool/pdftex.py
+++ b/engine/SCons/Tool/pdftex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/pdftex.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/pdftex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import SCons.Action
diff --git a/engine/SCons/Tool/qt.py b/engine/SCons/Tool/qt.py
index 18e163a..b8233c0 100644
--- a/engine/SCons/Tool/qt.py
+++ b/engine/SCons/Tool/qt.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/qt.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/qt.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/rmic.py b/engine/SCons/Tool/rmic.py
index ac785d6..6045b7f 100644
--- a/engine/SCons/Tool/rmic.py
+++ b/engine/SCons/Tool/rmic.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/rmic.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rmic.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/rpcgen.py b/engine/SCons/Tool/rpcgen.py
index a0e7330..1a3de76 100644
--- a/engine/SCons/Tool/rpcgen.py
+++ b/engine/SCons/Tool/rpcgen.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/rpcgen.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rpcgen.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 from SCons.Builder import Builder
 import SCons.Util
diff --git a/engine/SCons/Tool/rpm.py b/engine/SCons/Tool/rpm.py
index 1f70b0d..46b3112 100644
--- a/engine/SCons/Tool/rpm.py
+++ b/engine/SCons/Tool/rpm.py
@@ -33,7 +33,7 @@ tar.gz consisting of the source file and a specfile.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/rpm.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rpm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import re
@@ -51,11 +51,11 @@ def get_cmd(source, env):
     if SCons.Util.is_List(source):
         tar_file_with_included_specfile = source[0]
     return "%s %s %s"%(env['RPM'], env['RPMFLAGS'],
-                       tar_file_with_included_specfile.abspath )
+                       tar_file_with_included_specfile.get_abspath() )
 
 def build_rpm(target, source, env):
     # create a temporary rpm build root.
-    tmpdir = os.path.join( os.path.dirname( target[0].abspath ), 'rpmtemp' )
+    tmpdir = os.path.join( os.path.dirname( target[0].get_abspath() ), 'rpmtemp' )
     if os.path.exists(tmpdir):
         shutil.rmtree(tmpdir)
 
@@ -87,7 +87,7 @@ def build_rpm(target, source, env):
             expected   = os.path.basename(input.get_path())
 
             assert expected == rpm_output, "got %s but expected %s" % (rpm_output, expected)
-            shutil.copy( output, input.abspath )
+            shutil.copy( output, input.get_abspath() )
 
 
     # cleanup before leaving.
diff --git a/engine/SCons/Tool/rpmutils.py b/engine/SCons/Tool/rpmutils.py
index 0325dba..10b5560 100644
--- a/engine/SCons/Tool/rpmutils.py
+++ b/engine/SCons/Tool/rpmutils.py
@@ -35,7 +35,7 @@ exact syntax.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/rpmutils.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rpmutils.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 
 import platform
diff --git a/engine/SCons/Tool/sgiar.py b/engine/SCons/Tool/sgiar.py
index 2837e05..6be4c65 100644
--- a/engine/SCons/Tool/sgiar.py
+++ b/engine/SCons/Tool/sgiar.py
@@ -33,7 +33,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgiar.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgiar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/sgic++.py b/engine/SCons/Tool/sgic++.py
index c2585e7..8ae115a 100644
--- a/engine/SCons/Tool/sgic++.py
+++ b/engine/SCons/Tool/sgic++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgic++.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgic++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sgicc.py b/engine/SCons/Tool/sgicc.py
index bd88b01..ec26bf1 100644
--- a/engine/SCons/Tool/sgicc.py
+++ b/engine/SCons/Tool/sgicc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgicc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgicc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import cc
 
diff --git a/engine/SCons/Tool/sgilink.py b/engine/SCons/Tool/sgilink.py
index ba0af79..828f6d0 100644
--- a/engine/SCons/Tool/sgilink.py
+++ b/engine/SCons/Tool/sgilink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgilink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgilink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunar.py b/engine/SCons/Tool/sunar.py
index 32a5fcd..9c3e481 100644
--- a/engine/SCons/Tool/sunar.py
+++ b/engine/SCons/Tool/sunar.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunar.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/sunc++.py b/engine/SCons/Tool/sunc++.py
index c470758..75fe435 100644
--- a/engine/SCons/Tool/sunc++.py
+++ b/engine/SCons/Tool/sunc++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunc++.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunc++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons
 
diff --git a/engine/SCons/Tool/suncc.py b/engine/SCons/Tool/suncc.py
index 0ef730f..b543b95 100644
--- a/engine/SCons/Tool/suncc.py
+++ b/engine/SCons/Tool/suncc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/suncc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/suncc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunf77.py b/engine/SCons/Tool/sunf77.py
index d8c089f..bff5c1a 100644
--- a/engine/SCons/Tool/sunf77.py
+++ b/engine/SCons/Tool/sunf77.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunf77.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunf77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunf90.py b/engine/SCons/Tool/sunf90.py
index 91b61be..b0e31d1 100644
--- a/engine/SCons/Tool/sunf90.py
+++ b/engine/SCons/Tool/sunf90.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunf90.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunf90.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunf95.py b/engine/SCons/Tool/sunf95.py
index 5f76172..5263f5a 100644
--- a/engine/SCons/Tool/sunf95.py
+++ b/engine/SCons/Tool/sunf95.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunf95.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunf95.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunlink.py b/engine/SCons/Tool/sunlink.py
index dc4febf..d8a941f 100644
--- a/engine/SCons/Tool/sunlink.py
+++ b/engine/SCons/Tool/sunlink.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunlink.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunlink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/swig.py b/engine/SCons/Tool/swig.py
index 414d0cb..83cd315 100644
--- a/engine/SCons/Tool/swig.py
+++ b/engine/SCons/Tool/swig.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/swig.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/swig.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
@@ -42,6 +42,7 @@ import SCons.Defaults
 import SCons.Scanner
 import SCons.Tool
 import SCons.Util
+import SCons.Node
 
 SwigAction = SCons.Action.Action('$SWIGCOM', '$SWIGCOMSTR')
 
@@ -117,9 +118,13 @@ def _swigEmitter(target, source, env):
             if outdir:
                  java_files = [os.path.join(outdir, j) for j in java_files]
             java_files = list(map(env.fs.File, java_files))
+            def t_from_s(t, p, s, x):
+                return t.dir
+            tsm = SCons.Node._target_from_source_map
+            tkey = len(tsm)
+            tsm[tkey] = t_from_s
             for jf in java_files:
-                t_from_s = lambda t, p, s, x: t.dir
-                SCons.Util.AddMethod(jf, t_from_s, 'target_from_source')
+                jf._func_target_from_source = tkey
             target.extend(java_files)
     return (target, source)
 
diff --git a/engine/SCons/Tool/tar.py b/engine/SCons/Tool/tar.py
index 9af8963..50afeae 100644
--- a/engine/SCons/Tool/tar.py
+++ b/engine/SCons/Tool/tar.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/tar.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/tar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/tex.py b/engine/SCons/Tool/tex.py
index 5321a6f..9dd462e 100644
--- a/engine/SCons/Tool/tex.py
+++ b/engine/SCons/Tool/tex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/tex.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/tex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/textfile.py b/engine/SCons/Tool/textfile.py
index 2c0b627..9c2b3a1 100644
--- a/engine/SCons/Tool/textfile.py
+++ b/engine/SCons/Tool/textfile.py
@@ -44,7 +44,7 @@ Textfile/Substfile builder for SCons.
     is unpredictible whether the expansion will occur.
 """
 
-__revision__ = "src/engine/SCons/Tool/textfile.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/textfile.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons
 
diff --git a/engine/SCons/Tool/tlib.py b/engine/SCons/Tool/tlib.py
index 75ff2ef..9040439 100644
--- a/engine/SCons/Tool/tlib.py
+++ b/engine/SCons/Tool/tlib.py
@@ -27,7 +27,7 @@ XXX
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/tlib.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/tlib.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Tool
 import SCons.Tool.bcc32
diff --git a/engine/SCons/Tool/wix.py b/engine/SCons/Tool/wix.py
index 9b4eedc..1291f18 100644
--- a/engine/SCons/Tool/wix.py
+++ b/engine/SCons/Tool/wix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/wix.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/wix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import SCons.Builder
 import SCons.Action
diff --git a/engine/SCons/Tool/xgettext.py b/engine/SCons/Tool/xgettext.py
index a28ce5b..ed6245d 100644
--- a/engine/SCons/Tool/xgettext.py
+++ b/engine/SCons/Tool/xgettext.py
@@ -24,7 +24,7 @@ Tool specific initialization of `xgettext` tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/xgettext.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/xgettext.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 #############################################################################
 class _CmdRunner(object):
diff --git a/engine/SCons/Tool/yacc.py b/engine/SCons/Tool/yacc.py
index f9c7b08..4b8d938 100644
--- a/engine/SCons/Tool/yacc.py
+++ b/engine/SCons/Tool/yacc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/yacc.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/yacc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/zip.py b/engine/SCons/Tool/zip.py
index 6749fdd..750769a 100644
--- a/engine/SCons/Tool/zip.py
+++ b/engine/SCons/Tool/zip.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/zip.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/zip.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Util.py b/engine/SCons/Util.py
index b3c37da..343f0a7 100644
--- a/engine/SCons/Util.py
+++ b/engine/SCons/Util.py
@@ -24,7 +24,7 @@ Various utility functions go here.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Util.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Util.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import sys
@@ -992,7 +992,7 @@ class Selector(OrderedDict):
     def __call__(self, env, source, ext=None):
         if ext is None:
             try:
-                ext = source[0].suffix
+                ext = source[0].get_suffix()
             except IndexError:
                 ext = ""
         try:
diff --git a/engine/SCons/Variables/BoolVariable.py b/engine/SCons/Variables/BoolVariable.py
index 1fc59b4..1594559 100644
--- a/engine/SCons/Variables/BoolVariable.py
+++ b/engine/SCons/Variables/BoolVariable.py
@@ -34,7 +34,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/BoolVariable.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/BoolVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __all__ = ['BoolVariable',]
 
diff --git a/engine/SCons/Variables/EnumVariable.py b/engine/SCons/Variables/EnumVariable.py
index dd868ef..bc95cf6 100644
--- a/engine/SCons/Variables/EnumVariable.py
+++ b/engine/SCons/Variables/EnumVariable.py
@@ -37,7 +37,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/EnumVariable.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/EnumVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __all__ = ['EnumVariable',]
 
diff --git a/engine/SCons/Variables/ListVariable.py b/engine/SCons/Variables/ListVariable.py
index 0410897..1faee72 100644
--- a/engine/SCons/Variables/ListVariable.py
+++ b/engine/SCons/Variables/ListVariable.py
@@ -46,7 +46,7 @@ Usage example:
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Variables/ListVariable.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/ListVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 # Know Bug: This should behave like a Set-Type, but does not really,
 # since elements can occur twice.
diff --git a/engine/SCons/Variables/PackageVariable.py b/engine/SCons/Variables/PackageVariable.py
index 202a8f1..b7a59fe 100644
--- a/engine/SCons/Variables/PackageVariable.py
+++ b/engine/SCons/Variables/PackageVariable.py
@@ -50,7 +50,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PackageVariable.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/PackageVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __all__ = ['PackageVariable',]
 
diff --git a/engine/SCons/Variables/PathVariable.py b/engine/SCons/Variables/PathVariable.py
index 0ef5a1f..b095cbc 100644
--- a/engine/SCons/Variables/PathVariable.py
+++ b/engine/SCons/Variables/PathVariable.py
@@ -68,7 +68,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PathVariable.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/PathVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __all__ = ['PathVariable',]
 
diff --git a/engine/SCons/Variables/__init__.py b/engine/SCons/Variables/__init__.py
index f13167c..a00d4f8 100644
--- a/engine/SCons/Variables/__init__.py
+++ b/engine/SCons/Variables/__init__.py
@@ -26,7 +26,7 @@ customizable variables to an SCons build.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Variables/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os.path
 import sys
diff --git a/engine/SCons/Warnings.py b/engine/SCons/Warnings.py
index e2a90fe..615bc45 100644
--- a/engine/SCons/Warnings.py
+++ b/engine/SCons/Warnings.py
@@ -27,7 +27,7 @@ This file implements the warnings framework for SCons.
 
 """
 
-__revision__ = "src/engine/SCons/Warnings.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/Warnings.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import sys
 
diff --git a/engine/SCons/__init__.py b/engine/SCons/__init__.py
index 7cf97f9..019cbf9 100644
--- a/engine/SCons/__init__.py
+++ b/engine/SCons/__init__.py
@@ -27,15 +27,15 @@ The main package for the SCons software construction utility.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
-__version__ = "2.3.6"
+__version__ = "2.4.0"
 
-__build__ = "rel_2.3.5:3347:d31d5a4e74b6[MODIFIED]"
+__build__ = "rel_2.4.0:3365:9259ea1c13d7"
 
 __buildsys__ = "hpmicrodog"
 
-__date__ = "2015/07/31 14:36:10"
+__date__ = "2015/09/21 14:03:43"
 
 __developer__ = "bdbaddog"
 
diff --git a/engine/SCons/compat/__init__.py b/engine/SCons/compat/__init__.py
index 25e38f2..2352d4c 100644
--- a/engine/SCons/compat/__init__.py
+++ b/engine/SCons/compat/__init__.py
@@ -60,7 +60,7 @@ function defined below loads the module as the "real" name (without the
 rest of our code will find our pre-loaded compatibility module.
 """
 
-__revision__ = "src/engine/SCons/compat/__init__.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/compat/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import os
 import sys
diff --git a/engine/SCons/compat/_scons_builtins.py b/engine/SCons/compat/_scons_builtins.py
index a554e83..bf2005f 100644
--- a/engine/SCons/compat/_scons_builtins.py
+++ b/engine/SCons/compat/_scons_builtins.py
@@ -51,7 +51,7 @@ the FUNCTIONS or DATA output, that means those names are already built in
 to this version of Python and we don't need to add them from this module.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_builtins.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_builtins.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import builtins
 
diff --git a/engine/SCons/compat/_scons_collections.py b/engine/SCons/compat/_scons_collections.py
index 8bb5a0d..1f13065 100644
--- a/engine/SCons/compat/_scons_collections.py
+++ b/engine/SCons/compat/_scons_collections.py
@@ -30,7 +30,7 @@ used by SCons, in an interface that looks enough like collections for
 our purposes.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_collections.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_collections.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 # Use exec to hide old names from fixers.
 exec("""if True:
diff --git a/engine/SCons/compat/_scons_dbm.py b/engine/SCons/compat/_scons_dbm.py
index 69594ee..3bc0768 100644
--- a/engine/SCons/compat/_scons_dbm.py
+++ b/engine/SCons/compat/_scons_dbm.py
@@ -30,7 +30,7 @@ that the whichdb.whichdb() implementstation in the various 2.X versions of
 Python won't blow up even if dbm wasn't compiled in.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_dbm.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_dbm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 class error(Exception):
     pass
diff --git a/engine/SCons/compat/_scons_hashlib.py b/engine/SCons/compat/_scons_hashlib.py
index 2521f60..de93e4b 100644
--- a/engine/SCons/compat/_scons_hashlib.py
+++ b/engine/SCons/compat/_scons_hashlib.py
@@ -31,7 +31,7 @@ purposes, anyway).  In fact, this module will raise an ImportError if
 the underlying md5 module isn't available.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_hashlib.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_hashlib.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 import md5
 from string import hexdigits
diff --git a/engine/SCons/compat/_scons_io.py b/engine/SCons/compat/_scons_io.py
index c6a2fa4..72cd3b6 100644
--- a/engine/SCons/compat/_scons_io.py
+++ b/engine/SCons/compat/_scons_io.py
@@ -29,7 +29,7 @@ functionality.  It only wraps the portions of io functionality used
 by SCons, in an interface that looks enough like io for our purposes.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_io.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_io.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 # Use the "imp" module to protect the imports below from fixers.
 import imp
diff --git a/engine/SCons/cpp.py b/engine/SCons/cpp.py
index d8874f2..cf80a4b 100644
--- a/engine/SCons/cpp.py
+++ b/engine/SCons/cpp.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/cpp.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/cpp.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 __doc__ = """
 SCons C Pre-Processor module
diff --git a/engine/SCons/exitfuncs.py b/engine/SCons/exitfuncs.py
index 5c44508..19c8e8e 100644
--- a/engine/SCons/exitfuncs.py
+++ b/engine/SCons/exitfuncs.py
@@ -27,7 +27,7 @@ Register functions which are executed when SCons exits for any reason.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/exitfuncs.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
+__revision__ = "src/engine/SCons/exitfuncs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
 
 
 import atexit