Merge branch 'release/debian/3.1.2+repack-1'debian/3.1.2+repack-1

360 files changed, 1731 insertions, 2221 deletions

diff --git a/src/Announce.txt b/src/Announce.txt
index 2ceb8bc..321496d 100755
--- a/src/Announce.txt
+++ b/src/Announce.txt
@@ -18,12 +18,43 @@ So that everyone using SCons can help each other learn how to use it more
 effectively, please go to http://scons.org/lists.html#users to sign up for
 the scons-users mailing list.
 
-RELEASE 3.1.0 - Mon, 20 Jul 2019 16:59:23 -0700
+RELEASE 3.1.2 - Mon, 17 Dec 2019 02:06:27 +0000
 
   Please consult the RELEASE.txt file for a summary of changes since the last
   release and consult the CHANGES.txt file for complete a list of changes
   since last release.  This announcement highlights only the important
   changes.
+
+  NOTE: The 4.0.0 Release of SCons will drop Python 2.7 Support
+
+  Please note the following important changes since release 3.1.1:
+      - Added debug option "action_timestamps" which outputs to stdout the absolute start and end time for each target.
+      - Update Command() function to accept target_scanner, source_factory, and target_factory arguments.
+        This makes Command act more like a one-off builder.
+      - Added support for "-imacros" to ParseFlags	
+      - Avoid crash with UnicodeDecodeError on Python 3 when a Latex log file in
+        non-UTF-8 encoding (e.g. containing umlauts in Latin-1 encoding when
+        the fontenc package is included with \usepackage[T1]{fontenc}) is read.
+      - Improved threading performance by ensuring NodeInfo is shared
+        across threads. Results in ~13% improvement for parallel builds
+        (-j# > 1) with many shared nodes.
+      - Improve performance of Entry.disambiguate() by making check for
+        most common case first, preventing unnecessary IO.
+      - Improved DAG walk performance by reducing unnecessary work when
+        there are no un-visited children.
+      - Turn previously deprecated debug options into failures:
+        --debug=tree, --debug=dtree, --debug=stree, --debug=nomemoizer.
+      - Experimental New Feature: Enable caching MSVC configuration
+        If SCONS_CACHE_MSVC_CONFIG shell environment variable is set,
+        SCons will cache the results of past calls to vcvarsall.bat to
+        a file; integrates with existing memoizing of such vars.
+        On vs2019 saves 5+ seconds per SCons invocation, which really
+        helps test suite runs.
+      - Remove deprecated SourceSignatures, TargetSignatures
+      - Remove deprecated Builder keywords: overrides and scanner
+      - Remove deprecated env.Copy
+      - Remove deprecated BuildDir plus SConscript keyword build_dir
+
     Please note the following important changes since release 3.0.4:
       - Change the default for AppendENVPath to delete_existing=0, so path
         order will not be changed, unless explicitly set (Issue #3276)
diff --git a/src/CHANGES.txt b/src/CHANGES.txt
index a23140c..745bcba 100755
--- a/src/CHANGES.txt
+++ b/src/CHANGES.txt
@@ -4,6 +4,92 @@
 
                             Change Log
 
+NOTE: The 4.0.0 Release of SCons will drop Python 2.7 Support
+
+RELEASE 3.1.2 - Mon, 17 Dec 2019 02:06:27 +0000
+
+  From Edoardo Bezzeccheri
+    - Added debug option "action_timestamps" which outputs to stdout the absolute start and end time for each target.
+
+  From Rob Boehne
+    - Fix suncxx tool (Oracle Studio compiler) when using Python 3.  Previously would throw an exception.
+      Resolved by properly handling tool version string output as unicode.
+
+  From Tim Gates
+    - Resolved a typo in engine.SCons.Tool
+
+  From Adam Gross:
+    - Resolved a race condition in multithreaded Windows builds with Python 2
+      in the case where a child process is spawned while a Python action has a
+      file open. Original author: Ryan Beasley.
+
+  From Jason Kenny
+    - Update Command() function to accept target_scanner, source_factory, and target_factory arguments.
+      This makes Command act more like a one-off builder.
+
+  From Ivan Kravets
+    - Added support for "-imacros" to ParseFlags
+
+  From Jacek Kuczera:
+    - Fix CheckFunc detection code for Visual 2019. Some functions
+      (e.g. memmove) were incorrectly recognized as not available.
+
+  From Jakub Kulik
+    - Fix stacktrace when using SCons with Python 3.5+ and SunOS/Solaris related tools.	
+
+  From Philipp Maierhöfer:
+    - Avoid crash with UnicodeDecodeError on Python 3 when a Latex log file in
+      non-UTF-8 encoding (e.g. containing umlauts in Latin-1 encoding when
+      the fontenc package is included with \usepackage[T1]{fontenc}) is read.
+
+  From Mathew Robinson:
+    - Improved threading performance by ensuring NodeInfo is shared
+      across threads. Results in ~13% improvement for parallel builds
+      (-j# > 1) with many shared nodes.
+    - Improve performance of Entry.disambiguate() by making check for
+      most common case first, preventing unnecessary IO.
+    - Improved DAG walk performance by reducing unnecessary work when
+      there are no un-visited children.
+
+  From Mats Wichmann
+    - Replace instances of string find method with "in" checks where
+      the index from find() was not used.
+    - CmdStringHolder fix from issue #3428
+    - Turn previously deprecated debug options into failures:
+      --debug=tree, --debug=dtree, --debug=stree, --debug=nomemoizer.
+    - Experimental New Feature: Enable caching MSVC configuration
+      If SCONS_CACHE_MSVC_CONFIG shell environment variable is set,
+      SCons will cache the results of past calls to vcvarsall.bat to
+      a file; integrates with existing memoizing of such vars.
+      On vs2019 saves 5+ seconds per SCons invocation, which really
+      helps test suite runs.
+    - Remove deprecated SourceSignatures, TargetSignatures
+    - Remove deprecated Builder keywords: overrides and scanner
+    - Remove deprecated env.Copy
+    - Remove deprecated BuildDir plus SConscript keyword build_dir
+    - A number of documentation improvements.
+
+
+RELEASE 3.1.1 - Mon, 07 Aug 2019 20:09:12 -0500
+
+  From William Deegan:
+    - Remove obsoleted references to DeciderNeedsNode which could cause crash when using --debug=explain
+
+  From Jason Kenny
+    - Add Fix and test for crash in 3.1.0 when using Decider('MD5-timestamp') and --debug=explain
+
+  From Ben Reed:
+    - Added -fmerge-all-constants to flags that get included in both CCFLAGS and LINKFLAGS.
+
+  From Mathew Robinson:
+    - Fix issue #3415 - Update remaining usages of EnvironmentError to SConsEnvironmentError
+      this patch fixes issues introduced in 3.1.0 where any of the
+      following would cause SCons to error and exit:
+        - CacheDir not write-able
+        - JSON encoding errors for CacheDir config
+        - JSON decoding errors for CacheDir config
+
+
 RELEASE 3.1.0 - Mon, 20 Jul 2019 16:59:23 -0700
 
   From Joseph Brill:
@@ -13,7 +99,7 @@ RELEASE 3.1.0 - Mon, 20 Jul 2019 16:59:23 -0700
   From William Deegan:
     - Enhanced --debug=explain output. Now the separate components of the dependency list are split up
       as follows:
-      
+
       scons: rebuilding `file3' because:
            the dependency order changed:
            ->Sources
@@ -84,7 +170,7 @@ RELEASE 3.1.0 - Mon, 20 Jul 2019 16:59:23 -0700
     - More fixes for newer Java versions (since 9): handle new jdk directory
       naming (jdk-X.Y instead of jdkX.Y) on Windows; handle two-digit major
       version. Docstrings improved.
-    - Fixups for pylint: exception types, redefined functions, 
+    - Fixups for pylint: exception types, redefined functions,
       globals, etc.  Some old code removed to resolve issues (hashlib is
       always present on modern Pythons; no longer need the code for
       2.5-and-earlier optparse). cmp is not a builtin function in Py3,
@@ -94,7 +180,7 @@ RELEASE 3.1.0 - Mon, 20 Jul 2019 16:59:23 -0700
     - Add a PY3-only function for setting up the cachedir that should be less
       prone to races. Add a hack to the PY2 version (from Issue #3351) to
       be less prone to a race in the check for old-style cache.
-    - Fix coding error in docbook tool only exercised when using python lxml 
+    - Fix coding error in docbook tool only exercised when using python lxml
     - Recognize two additional GNU compiler header directory options in
       ParseFlags: -iquote and -idirafter.
     - Fix more re patterns that contain \ but not specified as raw strings
@@ -141,7 +227,7 @@ From Daniel Moody:
 
   From Bernhard M. Wiedemann:
     - Do not store build host+user name if reproducible builds are wanted
-    
+
 
 RELEASE 3.0.4 - Mon, 20 Jan 2019 22:49:27 +0000
 
@@ -209,9 +295,9 @@ RELEASE 3.0.2 - Mon, 31 Dec 2018 16:00:12 -0700
     - Fix GH Issue #2580 - # in FRAMEWORKPATH doesn't get properly expanded. The # is left in the
       command line.
     - Fix issue #2980 with credit to Piotr Bartosik (and William Blevins).  This is an issue where using
-      TimeStamp-MD5 Decider and CacheDir can yield incorrect md5's being written into the .sconsign.  
-      The difference between Piotr Bartosik's patch and the current code is that the more complicated 
-      creation of file to csig map is only done when the count of children for the current node doesn't 
+      TimeStamp-MD5 Decider and CacheDir can yield incorrect md5's being written into the .sconsign.
+      The difference between Piotr Bartosik's patch and the current code is that the more complicated
+      creation of file to csig map is only done when the count of children for the current node doesn't
       match the previous count which is loaded from the sconsign.
     - Fix issue # 3106 MSVC if using MSVC_BATCH and target dir had a space would fail due to quirk in
       MSVC's handling of escaped targetdirs when batch compiling.
@@ -247,7 +333,7 @@ RELEASE 3.0.2 - Mon, 31 Dec 2018 16:00:12 -0700
     - Removed unused --warn options from the man page and source code.
 
   From Arda Fu
-    - Fix cpp scanner regex logic to treat ifndef for py3.5+. Previously it was 
+    - Fix cpp scanner regex logic to treat ifndef for py3.5+. Previously it was
       not properly differentiating between if, ifdef, and ifndef.
 
   From Philipp Maierhöfer
@@ -258,7 +344,7 @@ RELEASE 3.0.2 - Mon, 31 Dec 2018 16:00:12 -0700
   From Matthew Marinets:
     - Fixed an issue that caused the Java emitter to incorrectly parse arguments to constructors that
       implemented a class.
-      
+
   From Fredrik Medley:
     - Fix exception when printing of EnviromentError messages.
       Specifically, this fixes error reporting of the race condition when
@@ -379,7 +465,7 @@ RELEASE 3.0.2 - Mon, 31 Dec 2018 16:00:12 -0700
       filter type -> list in ipk
 
   From Bernhard M. Wiedemann:
-    - Update SCons' internal scons build logic to allow overriding build date 
+    - Update SCons' internal scons build logic to allow overriding build date
       with SOURCE_DATE_EPOCH for SCons itself.
     - Change the datestamps in SCons' docs and embedded in code use ISO 8601 format and UTC
 
diff --git a/src/LICENSE.txt b/src/LICENSE.txt
index 6b6cd6c..67e0e2f 100644
--- a/src/LICENSE.txt
+++ b/src/LICENSE.txt
@@ -1,3 +1,5 @@
+MIT License
+
 Copyright (c) 2001 - 2019 The SCons Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining
diff --git a/src/RELEASE.txt b/src/RELEASE.txt
index 9d0e092..5f84c9e 100755
--- a/src/RELEASE.txt
+++ b/src/RELEASE.txt
@@ -1,77 +1,90 @@
-  A new SCons checkpoint release, 3.1.0, is now available
+  A new SCons checkpoint release, 3.1.2, is now available
   on the SCons download page:
 
           https://scons.org/pages/download.html
 
-  Here is a summary of the changes since 3.0.5:
+  Here is a summary of the changes since 3.1.1:
+
+  NOTE: The 4.0.0 Release of SCons will drop Python 2.7 Support
 
   NEW FUNCTIONALITY
+    - Added debug option "action_timestamps" which outputs to stdout the absolute start and end time for each target.
 
-    - Added variable TEMPFILEARGJOIN to specify how to join arguments written
-      to temp files used when command lines exceed MAXLINELENGTH when the
-      command uses $TEMPFILE{...}
-    - Support for MSVC 2019
-    - Upgraded and improved Visual Studio solution/project generation code using the MSVSProject builder.
-      - Added support for Visual Studio 2017 and 2019.
-      - Added support for the following per-variant parameters to the builder:
-        - cpppaths: Provides per-variant include paths.
-        - cppdefines: Provides per-variant preprocessor definitions.
+  REMOVED FUNCTIONALITY
+    - Turn previously deprecated debug options into failures:
+      --debug=tree, --debug=dtree, --debug=stree, --debug=nomemoizer.
+    - Remove deprecated SourceSignatures, TargetSignatures
+    - Remove deprecated Builder keywords: overrides and scanner
+    - Remove deprecated env.Copy
+    - Remove deprecated BuildDir plus SConscript keyword build_dir
 
 
   CHANGED/ENHANCED EXISTING FUNCTIONALITY
-
-      - Fix performance degradation for MD5-timestamp decider.  NOTE: This changes the Decider() function arguments.
-      From:
-          def my_decider(dependency, target, prev_ni):
-      To:
-          def my_decider(dependency, target, prev_ni, repo_node):
-      Where repo_node is the repository (or other) node to use to check if the node is out of date instead of dependency.
-
-    - Enhanced --debug=explain output. Now the separate components of the dependency list are split up
-      as follows:
-
-      scons: rebuilding `file3' because:
-           the dependency order changed:
-           ->Sources
-           Old:xxx	New:zzz
-           Old:yyy	New:yyy
-           Old:zzz	New:xxx
-           ->Depends
-           ->Implicit
-           Old:/usr/bin/python	New:/usr/bin/python
-
-    - Changed: Pseudo-builders now inherit OverrideEnvironments. For
-      example when calling a pseudo-builder from another
-      pseudo-builder the override variables passed to the first
-      pseudo-builder call had to be explicitly passed on to the
-      internal pseudo-builder call. Now the second pseudo-builder call
-      will automatically inherit these override values.
+    - Update Command() function to accept target_scanner, source_factory, and target_factory arguments.
+      This makes Command act more like a one-off builder.
+    - Added support for "-imacros" to ParseFlags
+    - EXPERIMENTAL NEW FEATURE: Enable caching MSVC configuration
+      If SCONS_CACHE_MSVC_CONFIG shell environment variable is set,
+      SCons will cache the results of past calls to vcvarsall.bat to
+      a file; integrates with existing memoizing of such vars.
+      On vs2019 saves 5+ seconds per SCons invocation, which really
+      helps test suite runs.
 
   FIXES
-    - Fix Issue #3350 - SCons Exception EnvironmentError is conflicting with Python's EnvironmentError.
-    - Fix spurious rebuilds on second build for cases where builder has > 1 target and the source file
-      is generated. This was causing the > 1th target to not have it's implicit list cleared when the source
-      file was actually built, leaving an implicit list similar to follows for 2nd and higher target
-              ['/usr/bin/python', 'xxx', 'yyy', 'zzz']
-      This was getting persisted to SConsign and on rebuild it would be corrected to be similar to this
-              ['zzz', 'yyy', 'xxx', '/usr/bin/python']
-      Which would trigger a rebuild because the order changed.
-      The fix involved added logic to mark all shared targets as peers and then ensure they're implicit
-      list is all cleared together.
-    - Fix Issue #3349 - SCons Exception EnvironmentError is conflicting with Python's EnvironmentError.
-      Renamed to SConsEnvironmentError
-    - Fix Issue #3350 - mslink failing when too many objects.  This is resolved by adding TEMPFILEARGJOIN variable
-      which specifies what character to join all the argements output into the tempfile. The default remains a space
-      when mslink, msvc, or mslib tools are loaded they change the TEMPFILEARGJOIN to be a line separator (\r\n on win32)
-    - Additional fix to issue #3135 - Also handle 'pure' and 'elemental' type bound procedures
-
-    - Fix handling of Visual Studio Compilers to properly reject any unknown HOST_PLATFORM or TARGET_PLATFORM
-    - Enable LaTeX scanner to find more than one include per line
-    
-      under which they would be observed), or major code cleanups
-
-  Thanks to CURLY, LARRY, and MOE for their contributions to this release.
-  Contributors are listed alphabetically by their last name.
+    - Fix suncxx tool (Oracle Studio compiler) when using Python 3.  Previously would throw an exception.
+      Resolved by properly handling tool version string output as unicode.
+    - Resolved a race condition in multithreaded Windows builds with Python 2
+      in the case where a child process is spawned while a Python action has a
+      file open. Original author: Ryan Beasley.
+    - Fix CheckFunc detection code for Visual 2019. Some functions
+      (e.g. memmove) were incorrectly recognized as not available.
+    - Fix stacktrace when using SCons with Python 3.5+ and SunOS/Solaris related tools.
+    - Latex: Avoid crash with UnicodeDecodeError on Python 3 when a Latex log file in
+      non-UTF-8 encoding (e.g. containing umlauts in Latin-1 encoding when
+      the fontenc package is included with \usepackage[T1]{fontenc}) is read.
+    - CmdStringHolder fix from issue #3428
+
+  IMPROVEMENTS
+    - Improved threading performance by ensuring NodeInfo is shared
+      across threads. Results in ~13% improvement for parallel builds
+      (-j# > 1) with many shared nodes.
+    - Improve performance of Entry.disambiguate() by making check for
+      most common case first, preventing unnecessary IO.
+    - Improved DAG walk performance by reducing unnecessary work when
+      there are no un-visited children.
+
+
+  PACKAGING
+
+     - N/A
+
+  DOCUMENTATION
+
+    -  N/A
+
+  DEVELOPMENT
+
+    - N/A
+
+
+Thanks to the following developers for their contributions to this release.
+git shortlog --no-merges -ns 3.1.1..HEAD
+    59  Mats Wichmann
+    21  William Deegan
+     8  Edoardo Bezzeccheri
+     5  Adam Gross
+     5  maiphi
+     4  Ivan Kravets
+     4  Mathew Robinson
+     2  Jakub Kulík
+     2  Jacek Kuczera
+     2  Rob Boehne
+     2  Jason Kenny
+     2  Tim Gates
+     1  Jakub Kulik
+     1  Theogen Ratkin
+     1  jw0k
+
 
 Copyright (c) 2001 - 2019 The SCons Foundation
-src/RELEASE.txt e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan
+src/RELEASE.txt bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan
diff --git a/src/engine/SCons/Action.py b/src/engine/SCons/Action.py
index b541256..b4310f6 100644
--- a/src/engine/SCons/Action.py
+++ b/src/engine/SCons/Action.py
@@ -98,7 +98,7 @@ 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Action.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import pickle
diff --git a/src/engine/SCons/Action.xml b/src/engine/SCons/Action.xml
index 9cb186c..f4adc72 100644
--- a/src/engine/SCons/Action.xml
+++ b/src/engine/SCons/Action.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/ActionTests.py b/src/engine/SCons/ActionTests.py
index 9372240..b9e0663 100644
--- a/src/engine/SCons/ActionTests.py
+++ b/src/engine/SCons/ActionTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/ActionTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/ActionTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 # Define a null function and a null class for use as builder actions.
@@ -1208,10 +1208,6 @@ class CommandActionTestCase(unittest.TestCase):
             # Newer cygwin seems to return 126 for following
             expect_nonexecutable_file = 126
             expect_nonexecutable_dir = 127
-        elif sys.platform.find('sunos') != -1:
-            expect_nonexistent = 1
-            expect_nonexecutable_file = 1
-            expect_nonexecutable_dir = 1
         else:
             expect_nonexistent = 127
             expect_nonexecutable_file = 126
diff --git a/src/engine/SCons/Builder.py b/src/engine/SCons/Builder.py
index 7777436..e4e5215 100644
--- a/src/engine/SCons/Builder.py
+++ b/src/engine/SCons/Builder.py
@@ -98,7 +98,7 @@ 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Builder.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import collections
 
@@ -396,16 +396,13 @@ class BuilderBase(object):
         self.env = env
         self.single_source = single_source
         if 'overrides' in overrides:
-            SCons.Warnings.warn(SCons.Warnings.DeprecatedBuilderKeywordsWarning,
-                "The \"overrides\" keyword to Builder() creation has been deprecated;\n" +\
-                "\tspecify the items as keyword arguments to the Builder() call instead.")
-            overrides.update(overrides['overrides'])
-            del overrides['overrides']
+            msg =  "The \"overrides\" keyword to Builder() creation has been removed;\n" +\
+                "\tspecify the items as keyword arguments to the Builder() call instead."
+            raise TypeError(msg)
         if 'scanner' in overrides:
-            SCons.Warnings.warn(SCons.Warnings.DeprecatedBuilderKeywordsWarning,
-                                "The \"scanner\" keyword to Builder() creation has been deprecated;\n"
-                                "\tuse: source_scanner or target_scanner as appropriate.")
-            del overrides['scanner']
+            msg = "The \"scanner\" keyword to Builder() creation has been removed;\n" +\
+                "\tuse: source_scanner or target_scanner as appropriate."
+            raise TypeError(msg)
         self.overrides = overrides
 
         self.set_suffix(suffix)
diff --git a/src/engine/SCons/BuilderTests.py b/src/engine/SCons/BuilderTests.py
index dd9a917..d0713b2 100644
--- a/src/engine/SCons/BuilderTests.py
+++ b/src/engine/SCons/BuilderTests.py
@@ -22,7 +22,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/BuilderTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/BuilderTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/CacheDir.py b/src/engine/SCons/CacheDir.py
index c9e8ea7..20a7df4 100644
--- a/src/engine/SCons/CacheDir.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/CacheDir.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """
 CacheDir support
@@ -33,6 +33,7 @@ import os
 import stat
 import sys
 
+import SCons
 import SCons.Action
 import SCons.Warnings
 from SCons.Util import PY3
@@ -185,7 +186,7 @@ class CacheDir(object):
             pass
         except OSError:
             msg = "Failed to create cache directory " + path
-            raise SCons.Errors.EnvironmentError(msg)
+            raise SCons.Errors.SConsEnvironmentError(msg)
 
         try:
             with open(config_file, 'x') as config:
@@ -194,14 +195,14 @@ class CacheDir(object):
                     json.dump(self.config, config)
                 except Exception:
                     msg = "Failed to write cache configuration for " + path
-                    raise SCons.Errors.EnvironmentError(msg)
+                    raise SCons.Errors.SConsEnvironmentError(msg)
         except FileExistsError:
             try:
                 with open(config_file) as config:
                     self.config = json.load(config)
             except ValueError:
                 msg = "Failed to read cache configuration for " + path
-                raise SCons.Errors.EnvironmentError(msg)
+                raise SCons.Errors.SConsEnvironmentError(msg)
 
 
     def _readconfig2(self, path):
diff --git a/src/engine/SCons/CacheDirTests.py b/src/engine/SCons/CacheDirTests.py
index f96dab5..f1a9936 100644
--- a/src/engine/SCons/CacheDirTests.py
+++ b/src/engine/SCons/CacheDirTests.py
@@ -21,16 +21,19 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/CacheDirTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/CacheDirTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import shutil
 import sys
 import unittest
+import tempfile
+import stat
 
 from TestCmd import TestCmd
 
 import SCons.CacheDir
+from SCons.Util import PY3
 
 built_it = None
 
@@ -112,6 +115,84 @@ class CacheDirTestCase(BaseTestCase):
         finally:
             SCons.Util.MD5collect = save_collect
 
+class ExceptionTestCase(unittest.TestCase):
+    """Test that the correct exceptions are thrown by CacheDir."""
+
+    # Don't inherit from BaseTestCase, we're by definition trying to
+    # break things so we really want a clean slate for each test.
+    def setUp(self):
+        self.tmpdir = tempfile.mkdtemp()
+        self._CacheDir = SCons.CacheDir.CacheDir(self.tmpdir)
+
+    def tearDown(self):
+        shutil.rmtree(self.tmpdir)
+
+    @unittest.skipIf(sys.platform.startswith("win"), "This fixture will not trigger an OSError on Windows")
+    def test_throws_correct_on_OSError(self):
+        """Test that the correct error is thrown when cache directory cannot be created."""
+        privileged_dir = os.path.join(os.getcwd(), "privileged")
+        try:
+            os.mkdir(privileged_dir)
+            os.chmod(privileged_dir, stat.S_IREAD)
+            cd = SCons.CacheDir.CacheDir(os.path.join(privileged_dir, "cache"))
+            assert False, "Should have raised exception and did not"
+        except SCons.Errors.SConsEnvironmentError as e:
+            assert str(e) == "Failed to create cache directory {}".format(os.path.join(privileged_dir, "cache"))
+        finally:
+            os.chmod(privileged_dir, stat.S_IWRITE | stat.S_IEXEC | stat.S_IREAD)
+            shutil.rmtree(privileged_dir)
+
+
+    def test_throws_correct_when_failed_to_write_configfile(self):
+        class Unserializable:
+            """A class which the JSON should not be able to serialize"""
+
+            def __init__(self, oldconfig):
+                self.something = 1 # Make the object unserializable
+                # Pretend to be the old config just enough
+                self.__dict__["prefix_len"] = oldconfig["prefix_len"]
+
+            def __getitem__(self, name, default=None):
+                if name == "prefix_len":
+                    return self.__dict__["prefix_len"]
+                else:
+                    return None
+
+            def __setitem__(self, name, value):
+                self.__dict__[name] = value
+
+        oldconfig = self._CacheDir.config
+        self._CacheDir.config = Unserializable(oldconfig)
+        # Remove the config file that got created on object creation
+        # so that _readconfig* will try to rewrite it
+        old_config = os.path.join(self._CacheDir.path, "config")
+        os.remove(old_config)
+        
+        try:
+            if PY3:
+                self._CacheDir._readconfig3(self._CacheDir.path)
+            else:
+                self._CacheDir._readconfig2(self._CacheDir.path)
+            assert False, "Should have raised exception and did not"
+        except SCons.Errors.SConsEnvironmentError as e:
+            assert str(e) == "Failed to write cache configuration for {}".format(self._CacheDir.path)
+
+    def test_raise_environment_error_on_invalid_json(self):
+        config_file = os.path.join(self._CacheDir.path, "config")
+        with open(config_file, "r") as cfg:
+            content = cfg.read()
+        # This will make JSON load raise a ValueError
+        content += "{}"
+        with open(config_file, "w") as cfg:
+            cfg.write(content)
+
+        try:
+            # Construct a new cache dir that will try to read the invalid config
+            new_cache_dir = SCons.CacheDir.CacheDir(self._CacheDir.path)
+            assert False, "Should have raised exception and did not"
+        except SCons.Errors.SConsEnvironmentError as e:
+            assert str(e) == "Failed to read cache configuration for {}".format(self._CacheDir.path)
+
 class FileTestCase(BaseTestCase):
     """
     Test calling CacheDir code through Node.FS.File interfaces.
diff --git a/src/engine/SCons/Conftest.py b/src/engine/SCons/Conftest.py
index 1163aa3..c24adf8 100644
--- a/src/engine/SCons/Conftest.py
+++ b/src/engine/SCons/Conftest.py
@@ -290,6 +290,10 @@ char %s();""" % function_name
 #include <assert.h>
 %(hdr)s
 
+#if _MSC_VER && !__INTEL_COMPILER
+    #pragma function(%(name)s)
+#endif
+
 int main(void) {
 #if defined (__stub_%(name)s) || defined (__stub___%(name)s)
   fail fail fail
diff --git a/src/engine/SCons/Debug.py b/src/engine/SCons/Debug.py
index c19862a..ef7dfff 100644
--- a/src/engine/SCons/Debug.py
+++ b/src/engine/SCons/Debug.py
@@ -31,7 +31,7 @@ caller_trace()
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Debug.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Debug.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/Defaults.py b/src/engine/SCons/Defaults.py
index 30c0052..c39c417 100644
--- a/src/engine/SCons/Defaults.py
+++ b/src/engine/SCons/Defaults.py
@@ -33,7 +33,7 @@ from distutils.msvccompiler.
 #
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Defaults.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Defaults.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 import os
diff --git a/src/engine/SCons/Defaults.xml b/src/engine/SCons/Defaults.xml
index e568c92..8f87c6e 100644
--- a/src/engine/SCons/Defaults.xml
+++ b/src/engine/SCons/Defaults.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -572,15 +572,21 @@ searching the repositories.
 
 <scons_function name="DefaultEnvironment">
 <arguments signature="global">
-([args])
+([**kwargs])
 </arguments>
 <summary>
 <para>
-Creates and returns a default construction environment object.
-This construction environment is used internally by SCons
-in order to execute many of the global functions in this list,
-and to fetch source files transparently
+Creates and returns the default &consenv; object.
+The default &consenv; is used internally by SCons
+in order to execute many of the global functions in this list
+(i.e. those not called as methods of a specific
+&consenv;), and to fetch source files transparently
 from source code management systems.
+The default environment is a singleton, so the keyword
+arguments affect it only on the first call, on subsequent
+calls the already-constructed object is returned.
+The default environment can be modified in the same way
+as any &consenv;.
 </para>
 </summary>
 </scons_function>
diff --git a/src/engine/SCons/DefaultsTests.py b/src/engine/SCons/DefaultsTests.py
index 4e0328a..ebb78d5 100644
--- a/src/engine/SCons/DefaultsTests.py
+++ b/src/engine/SCons/DefaultsTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/DefaultsTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/DefaultsTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Environment.py b/src/engine/SCons/Environment.py
index 31a4721..c51df40 100644
--- a/src/engine/SCons/Environment.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Environment.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 import copy
@@ -46,7 +46,7 @@ import SCons.Builder
 import SCons.Debug
 from SCons.Debug import logInstanceCreation
 import SCons.Defaults
-import SCons.Errors
+from SCons.Errors import UserError, BuildError
 import SCons.Memoize
 import SCons.Node
 import SCons.Node.Alias
@@ -75,11 +75,6 @@ CalculatorArgs = {}
 semi_deepcopy = SCons.Util.semi_deepcopy
 semi_deepcopy_dict = SCons.Util.semi_deepcopy_dict
 
-# Pull UserError into the global name space for the benefit of
-# Environment().SourceSignatures(), which has some import statements
-# which seem to mess up its ability to reference SCons directly.
-UserError = SCons.Errors.UserError
-
 def alias_builder(env, target, source):
     pass
 
@@ -154,7 +149,7 @@ def _set_BUILDERS(env, key, value):
         env._dict[key] = bd
     for k, v in value.items():
         if not SCons.Builder.is_a_Builder(v):
-            raise SCons.Errors.UserError('%s is not a Builder.' % repr(v))
+            raise UserError('%s is not a Builder.' % repr(v))
     bd.update(value)
 
 def _del_SCANNERS(env, key):
@@ -431,7 +426,7 @@ class SubstitutionEnvironment(object):
             # efficient than calling another function or a method.
             if key not in self._dict \
                and not _is_valid_var.match(key):
-                    raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
+                    raise UserError("Illegal construction variable `%s'" % key)
             self._dict[key] = value
 
     def get(self, key, default=None):
@@ -707,31 +702,34 @@ class SubstitutionEnvironment(object):
             append_next_arg_to = None   # for multi-word args
             for arg in params:
                 if append_next_arg_to:
-                   if append_next_arg_to == 'CPPDEFINES':
-                       append_define(arg)
-                   elif append_next_arg_to == '-include':
-                       t = ('-include', self.fs.File(arg))
-                       dict['CCFLAGS'].append(t)
-                   elif append_next_arg_to == '-isysroot':
-                       t = ('-isysroot', arg)
-                       dict['CCFLAGS'].append(t)
-                       dict['LINKFLAGS'].append(t)
-                   elif append_next_arg_to == '-isystem':
-                       t = ('-isystem', arg)
-                       dict['CCFLAGS'].append(t)
-                   elif append_next_arg_to == '-iquote':
-                       t = ('-iquote', arg)
-                       dict['CCFLAGS'].append(t)
-                   elif append_next_arg_to == '-idirafter':
-                       t = ('-idirafter', arg)
-                       dict['CCFLAGS'].append(t)
-                   elif append_next_arg_to == '-arch':
-                       t = ('-arch', arg)
-                       dict['CCFLAGS'].append(t)
-                       dict['LINKFLAGS'].append(t)
-                   else:
-                       dict[append_next_arg_to].append(arg)
-                   append_next_arg_to = None
+                    if append_next_arg_to == 'CPPDEFINES':
+                        append_define(arg)
+                    elif append_next_arg_to == '-include':
+                        t = ('-include', self.fs.File(arg))
+                        dict['CCFLAGS'].append(t)
+                    elif append_next_arg_to == '-imacros':
+                        t = ('-imacros', self.fs.File(arg))
+                        dict['CCFLAGS'].append(t)
+                    elif append_next_arg_to == '-isysroot':
+                        t = ('-isysroot', arg)
+                        dict['CCFLAGS'].append(t)
+                        dict['LINKFLAGS'].append(t)
+                    elif append_next_arg_to == '-isystem':
+                        t = ('-isystem', arg)
+                        dict['CCFLAGS'].append(t)
+                    elif append_next_arg_to == '-iquote':
+                        t = ('-iquote', arg)
+                        dict['CCFLAGS'].append(t)
+                    elif append_next_arg_to == '-idirafter':
+                        t = ('-idirafter', arg)
+                        dict['CCFLAGS'].append(t)
+                    elif append_next_arg_to == '-arch':
+                        t = ('-arch', arg)
+                        dict['CCFLAGS'].append(t)
+                        dict['LINKFLAGS'].append(t)
+                    else:
+                        dict[append_next_arg_to].append(arg)
+                    append_next_arg_to = None
                 elif not arg[0] in ['-', '+']:
                     dict['LIBS'].append(self.fs.File(arg))
                 elif arg == '-dylib_file':
@@ -783,13 +781,14 @@ class SubstitutionEnvironment(object):
                 elif arg in ['-mno-cygwin',
                              '-pthread',
                              '-openmp',
+                             '-fmerge-all-constants',
                              '-fopenmp']:
                     dict['CCFLAGS'].append(arg)
                     dict['LINKFLAGS'].append(arg)
                 elif arg == '-mwindows':
                     dict['LINKFLAGS'].append(arg)
                 elif arg[:5] == '-std=':
-                    if arg[5:].find('++')!=-1:
+                    if '++' in arg[5:]:
                         key='CXXFLAGS'
                     else:
                         key='CFLAGS'
@@ -797,7 +796,7 @@ class SubstitutionEnvironment(object):
                 elif arg[0] == '+':
                     dict['CCFLAGS'].append(arg)
                     dict['LINKFLAGS'].append(arg)
-                elif arg in ['-include', '-isysroot', '-isystem', '-iquote', '-idirafter', '-arch']:
+                elif arg in ['-include', '-imacros', '-isysroot', '-isystem', '-iquote', '-idirafter', '-arch']:
                     append_next_arg_to = arg
                 else:
                     dict['CCFLAGS'].append(arg)
@@ -1429,14 +1428,6 @@ class Base(SubstitutionEnvironment):
         if SCons.Debug.track_instances: logInstanceCreation(self, 'Environment.EnvironmentClone')
         return clone
 
-    def Copy(self, *args, **kw):
-        global _warn_copy_deprecated
-        if _warn_copy_deprecated:
-            msg = "The env.Copy() method is deprecated; use the env.Clone() method instead."
-            SCons.Warnings.warn(SCons.Warnings.DeprecatedCopyWarning, msg)
-            _warn_copy_deprecated = False
-        return self.Clone(*args, **kw)
-
     def _changed_build(self, dependency, target, prev_ni, repo_node=None):
         if dependency.changed_state(target, prev_ni, repo_node):
             return 1
@@ -1492,8 +1483,14 @@ class Base(SubstitutionEnvironment):
 
         self.copy_from_cache = copy_function
 
+
     def Detect(self, progs):
         """Return the first available program in progs.
+
+        :param progs: one or more command names to check for
+        :type progs: str or list
+        :returns str: first name from progs that can be found.
+
         """
         if not SCons.Util.is_List(progs):
             progs = [ progs ]
@@ -1502,7 +1499,17 @@ class Base(SubstitutionEnvironment):
             if path: return prog
         return None
 
+
     def Dictionary(self, *args):
+        """Return construction variables from an environment.
+
+        :param *args: (optional) variable names to look up
+        :returns: if args omitted, the dictionary of all constr. vars.
+            If one arg, the corresponding value is returned.
+            If more than one arg, a list of values is returned.
+        :raises KeyError: if any of *args is not in the construction env.
+
+        """
         if not args:
             return self._dict
         dlist = [self._dict[x] for x in args]
@@ -1510,23 +1517,28 @@ class Base(SubstitutionEnvironment):
             dlist = dlist[0]
         return dlist
 
-    def Dump(self, key = None):
-        """
-        Using the standard Python pretty printer, return the contents of the
-        scons build environment as a string.
 
-        If the key passed in is anything other than None, then that will
-        be used as an index into the build environment dictionary and
-        whatever is found there will be fed into the pretty printer. Note
-        that this key is case sensitive.
+    def Dump(self, key=None):
+        """ Return pretty-printed string of construction variables.
+
+        :param key: if None, format the whole dict of variables.
+            Else look up and format just the value for key.
+
         """
         import pprint
         pp = pprint.PrettyPrinter(indent=2)
         if key:
-            dict = self.Dictionary(key)
+            cvars = self.Dictionary(key)
         else:
-            dict = self.Dictionary()
-        return pp.pformat(dict)
+            cvars = self.Dictionary()
+
+        # TODO: pprint doesn't do a nice job on path-style values
+        # if the paths contain spaces (i.e. Windows), because the
+        # algorithm tries to break lines on spaces, while breaking
+        # on the path-separator would be more "natural". Is there
+        # a better way to format those?
+        return pp.pformat(cvars)
+
 
     def FindIxes(self, paths, prefix, suffix):
         """
@@ -1599,7 +1611,7 @@ class Base(SubstitutionEnvironment):
             for td in tdlist:
                 targets.extend(td[0])
             if len(targets) > 1:
-                raise SCons.Errors.UserError(
+                raise UserError(
                             "More than one dependency target found in `%s':  %s"
                                             % (filename, targets))
         for target, depends in tdlist:
@@ -1917,14 +1929,6 @@ class Base(SubstitutionEnvironment):
             t.set_always_build()
         return tlist
 
-    def BuildDir(self, *args, **kw):
-        msg = """BuildDir() and the build_dir keyword have been deprecated;\n\tuse VariantDir() and the variant_dir keyword instead."""
-        SCons.Warnings.warn(SCons.Warnings.DeprecatedBuildDirWarning, msg)
-        if 'build_dir' in kw:
-            kw['variant_dir'] = kw['build_dir']
-            del kw['build_dir']
-        return self.VariantDir(*args, **kw)
-
     def Builder(self, **kw):
         nkw = self.subst_kw(kw)
         return SCons.Builder.Builder(**nkw)
@@ -1963,13 +1967,42 @@ class Base(SubstitutionEnvironment):
         be any type that the Builder constructor will accept
         for an action."""
         bkw = {
-            'action' : action,
-            'target_factory' : self.fs.Entry,
-            'source_factory' : self.fs.Entry,
+            'action': action,
+            'target_factory': self.fs.Entry,
+            'source_factory': self.fs.Entry,
         }
-        try: bkw['source_scanner'] = kw['source_scanner']
-        except KeyError: pass
-        else: del kw['source_scanner']
+        # source scanner
+        try:
+            bkw['source_scanner'] = kw['source_scanner']
+        except KeyError:
+            pass
+        else:
+            del kw['source_scanner']
+
+        # target scanner
+        try:
+            bkw['target_scanner'] = kw['target_scanner']
+        except KeyError:
+            pass
+        else:
+            del kw['target_scanner']
+
+        # source factory
+        try:
+            bkw['source_factory'] = kw['source_factory']
+        except KeyError:
+            pass
+        else:
+            del kw['source_factory']
+
+        # target factory
+        try:
+            bkw['target_factory'] = kw['target_factory']
+        except KeyError:
+            pass
+        else:
+            del kw['target_factory']
+            
         bld = SCons.Builder.Builder(**bkw)
         return bld(self, target, source, **kw)
 
@@ -2038,7 +2071,7 @@ class Base(SubstitutionEnvironment):
         """
         action = self.Action(action, *args, **kw)
         result = action([], [], self)
-        if isinstance(result, SCons.Errors.BuildError):
+        if isinstance(result, BuildError):
             errstr = result.errstr
             if result.filename:
                 errstr = result.filename + ': ' + errstr
@@ -2158,7 +2191,7 @@ class Base(SubstitutionEnvironment):
 
         for side_effect in side_effects:
             if side_effect.multiple_side_effect_has_builder():
-                raise SCons.Errors.UserError("Multiple ways to build the same target were specified for: %s" % str(side_effect))
+                raise UserError("Multiple ways to build the same target were specified for: %s" % str(side_effect))
             side_effect.add_source(targets)
             side_effect.side_effect = 1
             self.Precious(side_effect)
@@ -2176,24 +2209,6 @@ class Base(SubstitutionEnvironment):
             entry.set_src_builder(builder)
         return entries
 
-    def SourceSignatures(self, type):
-        global _warn_source_signatures_deprecated
-        if _warn_source_signatures_deprecated:
-            msg = "The env.SourceSignatures() method is deprecated;\n" + \
-                  "\tconvert your build to use the env.Decider() method instead."
-            SCons.Warnings.warn(SCons.Warnings.DeprecatedSourceSignaturesWarning, msg)
-            _warn_source_signatures_deprecated = False
-        type = self.subst(type)
-        self.src_sig_type = type
-        if type == 'MD5':
-            if not SCons.Util.md5:
-                raise UserError("MD5 signatures are not available in this version of Python.")
-            self.decide_source = self._changed_content
-        elif type == 'timestamp':
-            self.decide_source = self._changed_timestamp_match
-        else:
-            raise UserError("Unknown source signature type '%s'" % type)
-
     def Split(self, arg):
         """This function converts a string or list into a list of strings
         or Nodes.  This makes things easier for users by allowing files to
@@ -2215,28 +2230,6 @@ class Base(SubstitutionEnvironment):
         else:
             return [self.subst(arg)]
 
-    def TargetSignatures(self, type):
-        global _warn_target_signatures_deprecated
-        if _warn_target_signatures_deprecated:
-            msg = "The env.TargetSignatures() method is deprecated;\n" + \
-                  "\tconvert your build to use the env.Decider() method instead."
-            SCons.Warnings.warn(SCons.Warnings.DeprecatedTargetSignaturesWarning, msg)
-            _warn_target_signatures_deprecated = False
-        type = self.subst(type)
-        self.tgt_sig_type = type
-        if type in ('MD5', 'content'):
-            if not SCons.Util.md5:
-                raise UserError("MD5 signatures are not available in this version of Python.")
-            self.decide_target = self._changed_content
-        elif type == 'timestamp':
-            self.decide_target = self._changed_timestamp_match
-        elif type == 'build':
-            self.decide_target = self._changed_build
-        elif type == 'source':
-            self.decide_target = self._changed_source
-        else:
-            raise UserError("Unknown target signature type '%s'"%type)
-
     def Value(self, value, built_value=None):
         """
         """
@@ -2321,7 +2314,7 @@ class OverrideEnvironment(Base):
             return attr.clone(self)
         else:
             return attr
-        
+
     def __setattr__(self, name, value):
         setattr(self.__dict__['__subject'], name, value)
 
@@ -2333,7 +2326,7 @@ class OverrideEnvironment(Base):
             return self.__dict__['__subject'].__getitem__(key)
     def __setitem__(self, key, value):
         if not is_valid_construction_var(key):
-            raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
+            raise UserError("Illegal construction variable `%s'" % key)
         self.__dict__['overrides'][key] = value
     def __delitem__(self, key):
         try:
diff --git a/src/engine/SCons/Environment.xml b/src/engine/SCons/Environment.xml
index 9b392d5..344bc2e 100644
--- a/src/engine/SCons/Environment.xml
+++ b/src/engine/SCons/Environment.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -148,9 +148,9 @@ appending to this list,
 although the more flexible approach
 is to associate scanners
 with a specific Builder.
-See the sections "Builder Objects"
-and "Scanner Objects,"
-below, for more information.
+See the manpage sections "Builder Objects"
+and "Scanner Objects"
+for more information.
 </para>
 </summary>
 </cvar>
@@ -160,7 +160,8 @@ below, for more information.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -170,7 +171,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -180,7 +182,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -190,7 +193,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -200,7 +204,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -210,7 +215,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -220,7 +226,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -230,7 +237,8 @@ that may not be set or used in a construction environment.
 <para>
 A reserved variable name
 that may not be set or used in a construction environment.
-(See "Variable Substitution," below.)
+(See the manpage section "Variable Substitution"
+for more information).
 </para>
 </summary>
 </cvar>
@@ -255,8 +263,8 @@ that are part of this construction environment.
 Creates an Action object for
 the specified
 <varname>action</varname>.
-See the section "Action Objects,"
-below, for a complete explanation of the arguments and behavior.
+See the manpage section "Action Objects"
+for a complete explanation of the arguments and behavior.
 </para>
 
 <para>
@@ -359,7 +367,8 @@ has been built.
 The specified action(s) may be
 an Action object, or anything that
 can be converted into an Action object
-(see below).
+See the manpage section "Action Objects"
+for a complete explanation.
 </para>
 
 <para>
@@ -386,7 +395,8 @@ is built.
 The specified action(s) may be
 an Action object, or anything that
 can be converted into an Action object
-(see below).
+See the manpage section "Action Objects"
+for a complete explanation.
 </para>
 
 <para>
@@ -512,7 +522,7 @@ Otherwise, the construction variable
 and the value of the keyword argument
 are both coerced to lists,
 and the lists are added together.
-(See also the Prepend method, below.)
+(See also the &Prepend; method).
 </para>
 
 <para>
@@ -603,28 +613,6 @@ env.AppendUnique(CCFLAGS = '-g', FOO = ['foo.yyy'])
 </summary>
 </scons_function>
 
-<scons_function name="BuildDir">
-<arguments>
-(build_dir, src_dir, [duplicate])
-</arguments>
-<summary>
-<para>
-Deprecated synonyms for
-&f-VariantDir;
-and
-<function>env.VariantDir</function>().
-The
-<varname>build_dir</varname>
-argument becomes the
-<varname>variant_dir</varname>
-argument of
-&f-VariantDir;
-or
-<function>env.VariantDir</function>().
-</para>
-</summary>
-</scons_function>
-
 <scons_function name="Builder">
 <arguments>
 (action, [arguments])
@@ -634,8 +622,8 @@ or
 Creates a Builder object for
 the specified
 <varname>action</varname>.
-See the section "Builder Objects,"
-below, for a complete explanation of the arguments and behavior.
+See the manpage section "Builder Objects"
+for a complete explanation of the arguments and behavior.
 </para>
 
 <para>
@@ -898,11 +886,15 @@ wx_env = env.Clone(parse_flags='!wx-config --cflags --cxxflags')
 <builder name="Command">
 <summary>
 <para>
-The &b-Command; "Builder" is actually implemented
-as a function that looks like a Builder,
-but actually takes an additional argument of the action
-from which the Builder should be made.
-See the &f-link-Command; function description
+The &b-Command; "Builder" is actually
+a function that looks like a Builder,
+but takes a required third argument, which is the
+action to take to construct the target
+from the source, used for "one-off" builds
+where a full builder is not needed.
+Thus it does not follow the builder
+calling rules described at the start of this section.
+See instead the &f-link-Command; function description
 for the calling syntax and details.
 </para>
 </summary>
@@ -923,19 +915,29 @@ for a single special-case build.
 </para>
 
 <para>
-As a special case, the
-<varname>source_scanner</varname>
-keyword argument can
+&b-Command; builder accepts
+<varname>source_scanner</varname>,
+<varname>target_scanner</varname>,
+<varname>source_factory</varname>, and
+<varname>target_factory</varname>
+keyword arguments. The *_scanner args can
 be used to specify
 a Scanner object
-that will be used to scan the sources.
-(The global
+that will be used to apply a custom
+scanner for a source or target.
+For example, the global
 <literal>DirScanner</literal>
 object can be used
 if any of the sources will be directories
 that must be scanned on-disk for
 changes to files that aren't
-already specified in other Builder of function calls.)
+already specified in other Builder of function calls.
+The *_factory args take a factory function that the
+Command will use to turn any sources or targets
+specified as strings into SCons Nodes.
+See the sections "Builder Objects"
+below, for more information about how these
+args work in a Builder.
 </para>
 
 <para>
@@ -947,7 +949,7 @@ same-named existing construction variables.
 An action can be an external command,
 specified as a string,
 or a callable Python object;
-see "Action Objects," below,
+see the manpage section "Action Objects"
 for more complete information.
 Also note that a string specifying an external command
 may be preceded by an
@@ -971,7 +973,7 @@ env.Command('foo.out', 'foo.in',
 env.Command('bar.out', 'bar.in',
             ["rm -f $TARGET",
              "$BAR_BUILD &lt; $SOURCES &gt; $TARGET"],
-            ENV = {'PATH' : '/usr/local/bin/'})
+            ENV={'PATH': '/usr/local/bin/'})
 
 def rename(env, target, source):
     import os
@@ -979,7 +981,7 @@ def rename(env, target, source):
 
 env.Command('baz.out', 'baz.in',
             ["$BAZ_BUILD &lt; $SOURCES &gt; .tmp",
-	     rename ])
+	     rename])
 </example_commands>
 
 <para>
@@ -988,14 +990,14 @@ Note that the
 function will usually assume, by default,
 that the specified targets and/or sources are Files,
 if no other part of the configuration
-identifies what type of entry it is.
+identifies what type of entries they are.
 If necessary, you can explicitly specify
 that targets or source nodes should
-be treated as directoriese
+be treated as directories
 by using the
 &f-link-Dir;
 or
-<function>env.Dir</function>()
+<function>env.Dir</function>
 functions.
 </para>
 
@@ -1011,9 +1013,9 @@ env.Command(env.Dir('$DISTDIR')), None, make_distdir)
 </example_commands>
 
 <para>
-(Also note that SCons will usually
+Also note that SCons will usually
 automatically create any directory necessary to hold a target file,
-so you normally don't need to create directories by hand.)
+so you normally don't need to create directories by hand.
 </para>
 </summary>
 </scons_function>
@@ -1029,8 +1031,8 @@ so you normally don't need to create directories by hand.)
 <para>
 Creates a Configure object for integrated
 functionality similar to GNU autoconf.
-See the section "Configure Contexts,"
-below, for a complete explanation of the arguments and behavior.
+See the manpage section "Configure Contexts"
+for a complete explanation of the arguments and behavior.
 </para>
 </summary>
 </scons_function>
@@ -1325,11 +1327,11 @@ env.Depends(bar, installed_lib)
 <summary>
 <para>
 Returns a dictionary object
-containing copies of all of the
-construction variables in the environment.
-If there are any variable names specified,
-only the specified construction
-variables are returned in the dictionary.
+containing the &consvars; in the &consenv;.
+If there are any arguments specified,
+the values of the specified &consvars;
+are returned as a string (if one
+argument) or as a list of strings.
 </para>
 
 <para>
@@ -1337,8 +1339,8 @@ Example:
 </para>
 
 <example_commands>
-dict = env.Dictionary()
-cc_dict = env.Dictionary('CC', 'CCFLAGS', 'CCCOM')
+cvars = env.Dictionary()
+cc_values = env.Dictionary('CC', 'CCFLAGS', 'CCCOM')
 </example_commands>
 </summary>
 </scons_function>
@@ -1375,7 +1377,8 @@ would supply a string as a directory name
 to a Builder method or function.
 Directory Nodes have attributes and methods
 that are useful in many situations;
-see "File and Directory Nodes," below.
+see manpage section "File and Directory Nodes"
+for more information.
 </para>
 </summary>
 </scons_function>
@@ -1399,7 +1402,7 @@ This SConstruct:
 
 <example_commands>
 env=Environment()
-print env.Dump('CCCOM')
+print(env.Dump('CCCOM'))
 </example_commands>
 
 <para>
@@ -1416,7 +1419,7 @@ While this SConstruct:
 
 <example_commands>
 env=Environment()
-print env.Dump()
+print(env.Dump())
 </example_commands>
 
 <para>
@@ -1458,8 +1461,8 @@ Executes an Action object.
 The specified
 <varname>action</varname>
 may be an Action object
-(see the section "Action Objects,"
-below, for a complete explanation of the arguments and behavior),
+(see manpage section "Action Objects"
+for a complete explanation of the arguments and behavior),
 or it may be a command-line string,
 list of commands,
 or executable Python function,
@@ -1532,7 +1535,8 @@ would supply a string as a file name
 to a Builder method or function.
 File Nodes have attributes and methods
 that are useful in many situations;
-see "File and Directory Nodes," below.
+see manpage section "File and Directory Nodes"
+for more information.
 </para>
 </summary>
 </scons_function>
@@ -2190,7 +2194,7 @@ and the construction variables they affect
 are as specified for the
 &f-link-env-ParseFlags;
 method (which this method calls).
-See that method's description, below,
+See that method's description
 for a table of options and construction variables.
 </para>
 </summary>
@@ -2301,30 +2305,34 @@ and added to the following construction variables:
 </para>
 
 <example_commands>
--arch               CCFLAGS, LINKFLAGS
--D                  CPPDEFINES
--framework          FRAMEWORKS
--frameworkdir=      FRAMEWORKPATH
--include            CCFLAGS
--isysroot           CCFLAGS, LINKFLAGS
--isystem            CCFLAGS
--iquote             CCFLAGS
--idirafter          CCFLAGS
--I                  CPPPATH
--l                  LIBS
--L                  LIBPATH
--mno-cygwin         CCFLAGS, LINKFLAGS
--mwindows           LINKFLAGS
--pthread            CCFLAGS, LINKFLAGS
--std=               CFLAGS
--Wa,                ASFLAGS, CCFLAGS
--Wl,-rpath=         RPATH
--Wl,-R,             RPATH
--Wl,-R              RPATH
--Wl,                LINKFLAGS
--Wp,                CPPFLAGS
--                   CCFLAGS
-+                   CCFLAGS, LINKFLAGS
+-arch                   CCFLAGS, LINKFLAGS
+-D                      CPPDEFINES
+-framework              FRAMEWORKS
+-frameworkdir=          FRAMEWORKPATH
+-fmerge-all-constants   CCFLAGS, LINKFLAGS
+-fopenmp                CCFLAGS, LINKFLAGS
+-include                CCFLAGS
+-imacros                CCFLAGS
+-isysroot               CCFLAGS, LINKFLAGS
+-isystem                CCFLAGS
+-iquote                 CCFLAGS
+-idirafter              CCFLAGS
+-I                      CPPPATH
+-l                      LIBS
+-L                      LIBPATH
+-mno-cygwin             CCFLAGS, LINKFLAGS
+-mwindows               LINKFLAGS
+-openmp                 CCFLAGS, LINKFLAGS
+-pthread                CCFLAGS, LINKFLAGS
+-std=                   CFLAGS
+-Wa,                    ASFLAGS, CCFLAGS
+-Wl,-rpath=             RPATH
+-Wl,-R,                 RPATH
+-Wl,-R                  RPATH
+-Wl,                    LINKFLAGS
+-Wp,                    CPPFLAGS
+-                       CCFLAGS
++                       CCFLAGS, LINKFLAGS
 </example_commands>
 
 <para>
@@ -2655,8 +2663,8 @@ env.Requires('foo', 'file-that-must-be-built-before-foo')
 Creates a Scanner object for
 the specified
 <varname>function</varname>.
-See the section "Scanner Objects,"
-below, for a complete explanation of the arguments and behavior.
+See manpage section "Scanner Objects"
+for a complete explanation of the arguments and behavior.
 </para>
 </summary>
 </scons_function>
@@ -2968,105 +2976,6 @@ env.SourceCode('no_source.c', None)
 </summary>
 </scons_function>
 
-<scons_function name="SourceSignatures">
-<arguments>
-(type)
-</arguments>
-<summary>
-<para>
-Note:  Although it is not yet officially deprecated,
-use of this function is discouraged.
-See the
-&f-link-Decider;
-function for a more flexible and straightforward way
-to configure SCons' decision-making.
-</para>
-
-<para>
-The
-&f-SourceSignatures;
-function tells
-&scons;
-how to decide if a source file
-(a file that is not built from any other files)
-has changed since the last time it
-was used to build a particular target file.
-Legal values are
-<literal>MD5</literal>
-or
-<literal>timestamp</literal>.
-</para>
-
-<para>
-If the environment method is used,
-the specified type of source signature
-is only used when deciding whether targets
-built with that environment are up-to-date or must be rebuilt.
-If the global function is used,
-the specified type of source signature becomes the default
-used for all decisions
-about whether targets are up-to-date.
-</para>
-
-<para>
-<literal>MD5</literal>
-means
-&scons;
-decides that a source file has changed
-if the MD5 checksum of its contents has changed since
-the last time it was used to rebuild a particular target file.
-</para>
-
-<para>
-<literal>timestamp</literal>
-means
-&scons;
-decides that a source file has changed
-if its timestamp (modification time) has changed since
-the last time it was used to rebuild a particular target file.
-(Note that although this is similar to the behavior of Make,
-by default it will also rebuild if the dependency is
-<emphasis>older</emphasis>
-than the last time it was used to rebuild the target file.)
-</para>
-
-<para>
-There is no different between the two behaviors
-for Python
-&f-Value;
-node objects.
-</para>
-
-<para>
-<literal>MD5</literal>
-signatures take longer to compute,
-but are more accurate than
-<literal>timestamp</literal>
-signatures.
-The default value is
-<literal>MD5</literal>.
-</para>
-
-<para>
-Note that the default
-&f-link-TargetSignatures;
-setting (see below)
-is to use this
-&f-SourceSignatures;
-setting for any target files that are used
-to build other target files.
-Consequently, changing the value of
-&f-SourceSignatures;
-will, by default,
-affect the up-to-date decision for all files in the build
-(or all files built with a specific construction environment
-when
-&f-env-SourceSignatures;
-is used).
-</para>
-</summary>
-</scons_function>
-
 <scons_function name="Split">
 <arguments>
 (arg)
@@ -3197,7 +3106,7 @@ Example:
 </para>
 
 <example_commands>
-print env.subst("The C compiler is: $CC")
+print(env.subst("The C compiler is: $CC"))
 
 def compile(target, source, env):
     sourceDir = env.subst("${SOURCE.srcdir}",
@@ -3210,159 +3119,6 @@ source_nodes = env.subst('$EXPAND_TO_NODELIST',
 </summary>
 </scons_function>
 
-<scons_function name="TargetSignatures">
-<arguments>
-(type)
-</arguments>
-<summary>
-<para>
-Note:  Although it is not yet officially deprecated,
-use of this function is discouraged.
-See the
-&f-link-Decider;
-function for a more flexible and straightforward way
-to configure SCons' decision-making.
-</para>
-
-<para>
-The
-&f-TargetSignatures;
-function tells
-&scons;
-how to decide if a target file
-(a file that
-<emphasis>is</emphasis>
-built from any other files)
-has changed since the last time it
-was used to build some other target file.
-Legal values are
-<literal>"build"</literal>;
-<literal>"content"</literal>
-(or its synonym
-<literal>"MD5"</literal>);
-<literal>"timestamp"</literal>;
-or
-<literal>"source"</literal>.
-</para>
-
-<para>
-If the environment method is used,
-the specified type of target signature is only used
-for targets built with that environment.
-If the global function is used,
-the specified type of signature becomes the default
-used for all target files that
-don't have an explicit target signature type
-specified for their environments.
-</para>
-
-<para>
-<literal>"content"</literal>
-(or its synonym
-<literal>"MD5"</literal>)
-means
-&scons;
-decides that a target file has changed
-if the MD5 checksum of its contents has changed since
-the last time it was used to rebuild some other target file.
-This means
-&scons;
-will open up
-MD5 sum the contents
-of target files after they're built,
-and may decide that it does not need to rebuild
-"downstream" target files if a file was
-rebuilt with exactly the same contents as the last time.
-</para>
-
-<para>
-<literal>"timestamp"</literal>
-means
-&scons;
-decides that a target file has changed
-if its timestamp (modification time) has changed since
-the last time it was used to rebuild some other target file.
-(Note that although this is similar to the behavior of Make,
-by default it will also rebuild if the dependency is
-<emphasis>older</emphasis>
-than the last time it was used to rebuild the target file.)
-</para>
-
-<para>
-<literal>"source"</literal>
-means
-&scons;
-decides that a target file has changed
-as specified by the corresponding
-&f-SourceSignatures;
-setting
-(<literal>"MD5"</literal>
-or
-<literal>"timestamp"</literal>).
-This means that
-&scons;
-will treat all input files to a target the same way,
-regardless of whether they are source files
-or have been built from other files.
-</para>
-
-<para>
-<literal>"build"</literal>
-means
-&scons;
-decides that a target file has changed
-if it has been rebuilt in this invocation
-or if its content or timestamp have changed
-as specified by the corresponding
-&f-SourceSignatures;
-setting.
-This "propagates" the status of a rebuilt file
-so that other "downstream" target files
-will always be rebuilt,
-even if the contents or the timestamp
-have not changed.
-</para>
-
-<para>
-<literal>"build"</literal>
-signatures are fastest because
-<literal>"content"</literal>
-(or
-<literal>"MD5"</literal>)
-signatures take longer to compute,
-but are more accurate than
-<literal>"timestamp"</literal>
-signatures,
-and can prevent unnecessary "downstream" rebuilds
-when a target file is rebuilt to the exact same contents
-as the previous build.
-The
-<literal>"source"</literal>
-setting provides the most consistent behavior
-when other target files may be rebuilt from
-both source and target input files.
-The default value is
-<literal>"source"</literal>.
-</para>
-
-<para>
-Because the default setting is
-<literal>"source"</literal>,
-using
-&f-SourceSignatures;
-is generally preferable to
-&f-TargetSignatures;,
-so that the up-to-date decision
-will be consistent for all files
-(or all files built with a specific construction environment).
-Use of
-&f-TargetSignatures;
-provides specific control for how built target files
-affect their "downstream" dependencies.
-</para>
-</summary>
-</scons_function>
-
 <scons_function name="Tool">
 <arguments>
 (string, [toolpath, **kw])
@@ -3647,30 +3403,51 @@ SConscript(dirs='doc', variant_dir='build/doc', duplicate=0)
 Searches for the specified executable
 <varname>program</varname>,
 returning the full path name to the program
-if it is found,
-and returning None if not.
-Searches the specified
-<varname>path</varname>,
-the value of the calling environment's PATH
-(<literal>env['ENV']['PATH']</literal>),
-or the user's current external PATH
-(<literal>os.environ['PATH']</literal>)
-by default.
+if it is found, else <literal>None</literal>.
+Searches the value of the
+<varname>path</varname> keyword argument,
+or if <literal>None</literal> (the default)
+the value of the calling environment's <envar>PATH</envar>
+(<literal>env['ENV']['PATH']</literal>).
+If <varname>path</varname> is <literal>None</literal> and
+the <literal>env['ENV']['PATH']</literal> key does not exist,
+the user's current external <envar>PATH</envar>
+(<literal>os.environ['PATH']</literal>) is used as fallback.
+</para>
+<para>
 On Windows systems, searches for executable
-programs with any of the file extensions
-listed in the specified
-<varname>pathext</varname>,
-the calling environment's PATHEXT
-(<literal>env['ENV']['PATHEXT']</literal>)
-or the user's current PATHEXT
+programs with any of the file extensions listed in the
+<varname>pathext</varname> keyword argument,
+or if <literal>None</literal> (the default)
+the calling environment's <envar>PATHEXT</envar>
+(<literal>env['ENV']['PATHEXT']</literal>).
+The user's current external <envar>PATHEXT</envar>
 (<literal>os.environ['PATHEXT']</literal>)
-by default.
+is used as a fallback if <varname>pathext</varname> is
+<literal>None</literal>
+and the key <literal>env['ENV']['PATHEXT']</literal>
+does not exist.
+</para>
+<para>
 Will not select any
 path name or names
 in the specified
 <varname>reject</varname>
 list, if any.
 </para>
+<note>
+<para>
+If you would prefer to search
+the user's current external <envar>PATH</envar>
+(<literal>os.environ['PATH']</literal>)
+by default,
+consider using the function <literal>SCons.Util.WhereIs</literal> instead.
+Note that <literal>SCons.Util.WhereIs</literal>
+does not expand environment variables automatically
+(no implicit <literal>env.subst</literal> for its arguments).
+</para>
+</note>
+
 </summary>
 </scons_function>
 
diff --git a/src/engine/SCons/EnvironmentTests.py b/src/engine/SCons/EnvironmentTests.py
index 1ce1007..139bef7 100644
--- a/src/engine/SCons/EnvironmentTests.py
+++ b/src/engine/SCons/EnvironmentTests.py
@@ -23,7 +23,7 @@
 
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/EnvironmentTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/EnvironmentTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
@@ -797,12 +797,14 @@ sys.exit(0)
             "-F fwd3 " + \
             "-dylib_file foo-dylib " + \
             "-pthread " + \
+            "-fmerge-all-constants " +\
             "-fopenmp " + \
             "-mno-cygwin -mwindows " + \
             "-arch i386 -isysroot /tmp " + \
             "-iquote /usr/include/foo1 " + \
             "-isystem /usr/include/foo2 " + \
             "-idirafter /usr/include/foo3 " + \
+            "-imacros /usr/include/foo4 " + \
             "+DD64 " + \
             "-DFOO -DBAR=value -D BAZ "
 
@@ -811,11 +813,13 @@ sys.exit(0)
         assert d['ASFLAGS'] == ['-as'], d['ASFLAGS']
         assert d['CFLAGS']  == ['-std=c99']
         assert d['CCFLAGS'] == ['-X', '-Wa,-as',
-                                '-pthread', '-fopenmp', '-mno-cygwin',
+                                '-pthread', '-fmerge-all-constants',
+                                '-fopenmp', '-mno-cygwin',
                                 ('-arch', 'i386'), ('-isysroot', '/tmp'),
                                 ('-iquote', '/usr/include/foo1'),
                                 ('-isystem', '/usr/include/foo2'),
                                 ('-idirafter', '/usr/include/foo3'),
+                                ('-imacros', env.fs.File('/usr/include/foo4')),
                                 '+DD64'], repr(d['CCFLAGS'])
         assert d['CXXFLAGS'] == ['-std=c++0x'], repr(d['CXXFLAGS'])
         assert d['CPPDEFINES'] == ['FOO', ['BAR', 'value'], 'BAZ'], d['CPPDEFINES']
@@ -832,7 +836,7 @@ sys.exit(0)
         assert LIBS == ['xxx', 'yyy', 'ascend'], (d['LIBS'], LIBS)
         assert d['LINKFLAGS'] == ['-Wl,-link',
                                   '-dylib_file', 'foo-dylib',
-                                  '-pthread', '-fopenmp',
+                                  '-pthread', '-fmerge-all-constants', '-fopenmp',
                                   '-mno-cygwin', '-mwindows',
                                   ('-arch', 'i386'),
                                   ('-isysroot', '/tmp'),
@@ -1872,18 +1876,6 @@ def generate(env):
         assert ('BUILDERS' in env) is False
         env2 = env.Clone()
 
-    def test_Copy(self):
-        """Test copying using the old env.Copy() method"""
-        env1 = self.TestEnvironment(XXX = 'x', YYY = 'y')
-        env2 = env1.Copy()
-        env1copy = env1.Copy()
-        assert env1copy == env1copy
-        assert env2 == env2
-        env2.Replace(YYY = 'yyy')
-        assert env2 == env2
-        assert env1 != env2
-        assert env1 == env1copy
-
     def test_Detect(self):
         """Test Detect()ing tools"""
         test = TestCmd.TestCmd(workdir = '')
@@ -2024,6 +2016,7 @@ def generate(env):
                                  "-Ffwd2 " + \
                                  "-F fwd3 " + \
                                  "-pthread " + \
+                                 "-fmerge-all-constants " + \
                                  "-mno-cygwin -mwindows " + \
                                  "-arch i386 -isysroot /tmp " + \
                                  "-iquote /usr/include/foo1 " + \
@@ -2035,7 +2028,7 @@ def generate(env):
             assert save_command == ['fake command'], save_command
             assert env['ASFLAGS'] == ['assembler', '-as'], env['ASFLAGS']
             assert env['CCFLAGS'] == ['', '-X', '-Wa,-as',
-                                      '-pthread', '-mno-cygwin',
+                                      '-pthread', '-fmerge-all-constants', '-mno-cygwin',
                                       ('-arch', 'i386'), ('-isysroot', '/tmp'),
                                       ('-iquote', '/usr/include/foo1'),
                                       ('-isystem', '/usr/include/foo2'),
@@ -2049,6 +2042,7 @@ def generate(env):
             assert env['LIBPATH'] == ['list', '/usr/fax', 'foo'], env['LIBPATH']
             assert env['LIBS'] == ['xxx', 'yyy', env.File('abc')], env['LIBS']
             assert env['LINKFLAGS'] == ['', '-Wl,-link', '-pthread',
+                                        '-fmerge-all-constants',
                                         '-mno-cygwin', '-mwindows',
                                         ('-arch', 'i386'),
                                         ('-isysroot', '/tmp'),
@@ -3280,44 +3274,6 @@ def generate(env):
         s = e.src_builder()
         assert s is None, s
 
-    def test_SourceSignatures(self):
-        """Test the SourceSignatures() method"""
-        import SCons.Errors
-
-        env = self.TestEnvironment(M = 'MD5', T = 'timestamp')
-
-        exc_caught = None
-        try:
-            env.SourceSignatures('invalid_type')
-        except SCons.Errors.UserError:
-            exc_caught = 1
-        assert exc_caught, "did not catch expected UserError"
-
-        env.SourceSignatures('MD5')
-        assert env.src_sig_type == 'MD5', env.src_sig_type
-
-        env.SourceSignatures('$M')
-        assert env.src_sig_type == 'MD5', env.src_sig_type
-
-        env.SourceSignatures('timestamp')
-        assert env.src_sig_type == 'timestamp', env.src_sig_type
-
-        env.SourceSignatures('$T')
-        assert env.src_sig_type == 'timestamp', env.src_sig_type
-
-        try:
-            import SCons.Util
-            save_md5 = SCons.Util.md5
-            SCons.Util.md5 = None
-            try:
-                env.SourceSignatures('MD5')
-            except SCons.Errors.UserError:
-                pass
-            else:
-                self.fail('Did not catch expected UserError')
-        finally:
-            SCons.Util.md5 = save_md5
-
     def test_Split(self):
         """Test the Split() method"""
         env = self.TestEnvironment(FOO = 'fff', BAR = 'bbb')
@@ -3334,56 +3290,6 @@ def generate(env):
         s = env.Split("$FOO$BAR")
         assert s == ["fffbbb"], s
 
-    def test_TargetSignatures(self):
-        """Test the TargetSignatures() method"""
-        import SCons.Errors
-
-        env = self.TestEnvironment(B='build', C='content')
-
-        exc_caught = None
-        try:
-            env.TargetSignatures('invalid_type')
-        except SCons.Errors.UserError:
-            exc_caught = 1
-        assert exc_caught, "did not catch expected UserError"
-        assert not hasattr(env, '_build_signature')
-
-        env.TargetSignatures('build')
-        assert env.tgt_sig_type == 'build', env.tgt_sig_type
-
-        env.TargetSignatures('$B')
-        assert env.tgt_sig_type == 'build', env.tgt_sig_type
-
-        env.TargetSignatures('content')
-        assert env.tgt_sig_type == 'content', env.tgt_sig_type
-
-        env.TargetSignatures('$C')
-        assert env.tgt_sig_type == 'content', env.tgt_sig_type
-
-        env.TargetSignatures('MD5')
-        assert env.tgt_sig_type == 'MD5', env.tgt_sig_type
-
-        env.TargetSignatures('timestamp')
-        assert env.tgt_sig_type == 'timestamp', env.tgt_sig_type
-
-        try:
-            import SCons.Util
-            save_md5 = SCons.Util.md5
-            SCons.Util.md5 = None
-            try:
-                env.TargetSignatures('MD5')
-            except SCons.Errors.UserError:
-                pass
-            else:
-                self.fail('Did not catch expected UserError')
-            try:
-                env.TargetSignatures('content')
-            except SCons.Errors.UserError:
-                pass
-            else:
-                self.fail('Did not catch expected UserError')
-        finally:
-            SCons.Util.md5 = save_md5
 
     def test_Value(self):
         """Test creating a Value() object
@@ -3404,7 +3310,6 @@ def generate(env):
         assert v3.value == 'c', v3.value
 
 
-
     def test_Environment_global_variable(self):
         """Test setting Environment variable to an Environment.Base subclass"""
         class MyEnv(SCons.Environment.Base):
@@ -3746,8 +3651,6 @@ class OverrideEnvironmentTestCase(unittest.TestCase,TestEnvironmentFixture):
     # Environment()
     # FindFile()
     # Scanner()
-    # SourceSignatures()
-    # TargetSignatures()
 
     # It's unlikely Clone() will ever be called this way, so let the
     # other methods test that handling overridden values works.
diff --git a/src/engine/SCons/Errors.py b/src/engine/SCons/Errors.py
index 28f58be..0bad46d 100644
--- a/src/engine/SCons/Errors.py
+++ b/src/engine/SCons/Errors.py
@@ -28,7 +28,7 @@ and user errors in SCons.
 
 """
 
-__revision__ = "src/engine/SCons/Errors.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Errors.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import shutil
 import SCons.Util
diff --git a/src/engine/SCons/ErrorsTests.py b/src/engine/SCons/ErrorsTests.py
index a1bc048..a0a9cb5 100644
--- a/src/engine/SCons/ErrorsTests.py
+++ b/src/engine/SCons/ErrorsTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/ErrorsTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/ErrorsTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import errno
 import os
diff --git a/src/engine/SCons/Executor.py b/src/engine/SCons/Executor.py
index c6ffe81..5c95e95 100644
--- a/src/engine/SCons/Executor.py
+++ b/src/engine/SCons/Executor.py
@@ -28,7 +28,7 @@ Nodes.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Executor.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Executor.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import collections
 
diff --git a/src/engine/SCons/ExecutorTests.py b/src/engine/SCons/ExecutorTests.py
index 353e6f2..88417a8 100644
--- a/src/engine/SCons/ExecutorTests.py
+++ b/src/engine/SCons/ExecutorTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/ExecutorTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/ExecutorTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Job.py b/src/engine/SCons/Job.py
index 12ba19f..214a0c9 100644
--- a/src/engine/SCons/Job.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Job.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/JobTests.py b/src/engine/SCons/JobTests.py
index d46ab30..32e9355 100644
--- a/src/engine/SCons/JobTests.py
+++ b/src/engine/SCons/JobTests.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/JobTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/JobTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import unittest
 import random
diff --git a/src/engine/SCons/Memoize.py b/src/engine/SCons/Memoize.py
index f7b45bf..8f33a1b 100644
--- a/src/engine/SCons/Memoize.py
+++ b/src/engine/SCons/Memoize.py
@@ -22,7 +22,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Memoize.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Memoize.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """Memoizer
 
diff --git a/src/engine/SCons/MemoizeTests.py b/src/engine/SCons/MemoizeTests.py
index f3b5329..e83aa95 100644
--- a/src/engine/SCons/MemoizeTests.py
+++ b/src/engine/SCons/MemoizeTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/MemoizeTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/MemoizeTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Node/Alias.py b/src/engine/SCons/Node/Alias.py
index a9defb6..5c62677 100644
--- a/src/engine/SCons/Node/Alias.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/Alias.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import collections
 
diff --git a/src/engine/SCons/Node/AliasTests.py b/src/engine/SCons/Node/AliasTests.py
index 764ac67..40f3ff3 100644
--- a/src/engine/SCons/Node/AliasTests.py
+++ b/src/engine/SCons/Node/AliasTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Node/AliasTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/AliasTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Node/FS.py b/src/engine/SCons/Node/FS.py
index 21ccecc..65d1ac1 100644
--- a/src/engine/SCons/Node/FS.py
+++ b/src/engine/SCons/Node/FS.py
@@ -33,7 +33,7 @@ that can be used by scripts or modules looking for the canonical default.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Node/FS.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/FS.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import fnmatch
 import os
@@ -963,14 +963,14 @@ class Entry(Base):
 
     def disambiguate(self, must_exist=None):
         """
-        """
-        if self.isdir():
-            self.__class__ = Dir
-            self._morph()
-        elif self.isfile():
+        """ 
+        if self.isfile():
             self.__class__ = File
             self._morph()
             self.clear()
+        elif self.isdir():
+            self.__class__ = Dir
+            self._morph()
         else:
             # There was nothing on-disk at this location, so look in
             # the src directory.
@@ -3436,6 +3436,8 @@ class File(Base):
             Boolean - Indicates if node(File) has changed.
         """
 
+        if node is None:
+            node = self
         # Now get sconsign name -> csig map and then get proper prev_ni if possible
         bi = node.get_stored_info().binfo
         rebuilt = False
diff --git a/src/engine/SCons/Node/FSTests.py b/src/engine/SCons/Node/FSTests.py
index 2366a4d..3b4d78b 100644
--- a/src/engine/SCons/Node/FSTests.py
+++ b/src/engine/SCons/Node/FSTests.py
@@ -22,7 +22,7 @@
 #
 from __future__ import division, print_function
 
-__revision__ = "src/engine/SCons/Node/FSTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/FSTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
@@ -2545,11 +2545,10 @@ class FileTestCase(_tempdirTestCase):
 
             def get_ninfo(self):
                 """ mocked to ensure csig will equal the filename"""
-                try:
-                    return self.ninfo
-                except AttributeError:
-                    self.ninfo = FakeNodeInfo(self.name, self.timestamp)
+                if self.ninfo is not None:
                     return self.ninfo
+                self.ninfo = FakeNodeInfo(self.name, self.timestamp)
+                return self.ninfo
 
             def get_csig(self):
                 ninfo = self.get_ninfo()
diff --git a/src/engine/SCons/Node/NodeTests.py b/src/engine/SCons/Node/NodeTests.py
index ce44b7d..3e186de 100644
--- a/src/engine/SCons/Node/NodeTests.py
+++ b/src/engine/SCons/Node/NodeTests.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/Node/NodeTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/NodeTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Node/Python.py b/src/engine/SCons/Node/Python.py
index d338051..ec23b3f 100644
--- a/src/engine/SCons/Node/Python.py
+++ b/src/engine/SCons/Node/Python.py
@@ -27,7 +27,7 @@ Python nodes.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Node/Python.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/Python.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Node
 
diff --git a/src/engine/SCons/Node/PythonTests.py b/src/engine/SCons/Node/PythonTests.py
index 98137c7..94501d2 100644
--- a/src/engine/SCons/Node/PythonTests.py
+++ b/src/engine/SCons/Node/PythonTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Node/PythonTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/PythonTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Node/__init__.py b/src/engine/SCons/Node/__init__.py
index 5455bd6..32f4bba 100644
--- a/src/engine/SCons/Node/__init__.py
+++ b/src/engine/SCons/Node/__init__.py
@@ -43,7 +43,7 @@ from __future__ import print_function
 # 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Node/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import collections
@@ -614,6 +614,7 @@ class Node(object, with_metaclass(NoSlotsPyPy)):
         self._func_rexists = 1
         self._func_get_contents = 0
         self._func_target_from_source = 0
+        self.ninfo = None
 
         self.clear_memoized_values()
 
@@ -1131,11 +1132,10 @@ class Node(object, with_metaclass(NoSlotsPyPy)):
         return ninfo
 
     def get_ninfo(self):
-        try:
-            return self.ninfo
-        except AttributeError:
-            self.ninfo = self.new_ninfo()
+        if self.ninfo is not None:
             return self.ninfo
+        self.ninfo = self.new_ninfo()
+        return self.ninfo
 
     def new_binfo(self):
         binfo = self.BuildInfo()
@@ -1661,10 +1661,7 @@ class Node(object, with_metaclass(NoSlotsPyPy)):
             if k not in old_bkids:
                 lines.append("`%s' is a new dependency\n" % stringify(k))
             else:
-                try:
-                    changed = _decider_map[k.changed_since_last_build](k, self, osig[k])
-                except DeciderNeedsNode as e:
-                    changed = e.decider(self, osig[k], node=self)
+                changed = _decider_map[k.changed_since_last_build](k, self, osig[k])
 
                 if changed:
                     lines.append("`%s' changed\n" % stringify(k))
diff --git a/src/engine/SCons/PathList.py b/src/engine/SCons/PathList.py
index d6a01e7..ad02936 100644
--- a/src/engine/SCons/PathList.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/PathList.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """SCons.PathList
 
diff --git a/src/engine/SCons/PathListTests.py b/src/engine/SCons/PathListTests.py
index 0a18fbe..0cf1457 100644
--- a/src/engine/SCons/PathListTests.py
+++ b/src/engine/SCons/PathListTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/PathListTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/PathListTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Platform/PlatformTests.py b/src/engine/SCons/Platform/PlatformTests.py
index 7941625..1d1d6a7 100644
--- a/src/engine/SCons/Platform/PlatformTests.py
+++ b/src/engine/SCons/Platform/PlatformTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/PlatformTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/PlatformTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Platform/__init__.py b/src/engine/SCons/Platform/__init__.py
index 8da1e9d..2e3d6cd 100644
--- a/src/engine/SCons/Platform/__init__.py
+++ b/src/engine/SCons/Platform/__init__.py
@@ -43,7 +43,7 @@ their own platform definition.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Platform/__init__.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Platform/__init__.xml b/src/engine/SCons/Platform/__init__.xml
index d4c2a21..43a4497 100644
--- a/src/engine/SCons/Platform/__init__.xml
+++ b/src/engine/SCons/Platform/__init__.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Platform/aix.py b/src/engine/SCons/Platform/aix.py
index 70fbb35..c5964b6 100644
--- a/src/engine/SCons/Platform/aix.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/aix.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import subprocess
diff --git a/src/engine/SCons/Platform/cygwin.py b/src/engine/SCons/Platform/cygwin.py
index 70b6443..fe71ea9 100644
--- a/src/engine/SCons/Platform/cygwin.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/cygwin.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 
diff --git a/src/engine/SCons/Platform/darwin.py b/src/engine/SCons/Platform/darwin.py
index d5861d9..ff0d50d 100644
--- a/src/engine/SCons/Platform/darwin.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/darwin.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import posix
 import os
diff --git a/src/engine/SCons/Platform/hpux.py b/src/engine/SCons/Platform/hpux.py
index 6867212..3158438 100644
--- a/src/engine/SCons/Platform/hpux.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/hpux.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import posix
 
diff --git a/src/engine/SCons/Platform/irix.py b/src/engine/SCons/Platform/irix.py
index a382e71..8643b14 100644
--- a/src/engine/SCons/Platform/irix.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/irix.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import posix
 
diff --git a/src/engine/SCons/Platform/mingw.py b/src/engine/SCons/Platform/mingw.py
index c03c9c8..1961606 100644
--- a/src/engine/SCons/Platform/mingw.py
+++ b/src/engine/SCons/Platform/mingw.py
@@ -27,7 +27,7 @@ Platform-specific initialization for the MinGW system.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/mingw.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/mingw.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 
diff --git a/src/engine/SCons/Platform/os2.py b/src/engine/SCons/Platform/os2.py
index ebabe3d..eb2c679 100644
--- a/src/engine/SCons/Platform/os2.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/os2.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 from . import win32
 
 def generate(env):
diff --git a/src/engine/SCons/Platform/posix.py b/src/engine/SCons/Platform/posix.py
index 780c764..c9f9a2d 100644
--- a/src/engine/SCons/Platform/posix.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/posix.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import errno
 import os
diff --git a/src/engine/SCons/Platform/posix.xml b/src/engine/SCons/Platform/posix.xml
index a710230..44cca43 100644
--- a/src/engine/SCons/Platform/posix.xml
+++ b/src/engine/SCons/Platform/posix.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Platform/sunos.py b/src/engine/SCons/Platform/sunos.py
index 6aa54aa..90418d5 100644
--- a/src/engine/SCons/Platform/sunos.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/sunos.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import posix
 
diff --git a/src/engine/SCons/Platform/sunos.xml b/src/engine/SCons/Platform/sunos.xml
index abab196..4b6bda2 100644
--- a/src/engine/SCons/Platform/sunos.xml
+++ b/src/engine/SCons/Platform/sunos.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Platform/virtualenv.py b/src/engine/SCons/Platform/virtualenv.py
index 9fb3e45..3416b41 100644
--- a/src/engine/SCons/Platform/virtualenv.py
+++ b/src/engine/SCons/Platform/virtualenv.py
@@ -26,7 +26,7 @@ Support for virtualenv.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/virtualenv.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/virtualenv.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/Platform/virtualenvTests.py b/src/engine/SCons/Platform/virtualenvTests.py
index 891fdb3..4fec748 100644
--- a/src/engine/SCons/Platform/virtualenvTests.py
+++ b/src/engine/SCons/Platform/virtualenvTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/virtualenvTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/virtualenvTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Platform/win32.py b/src/engine/SCons/Platform/win32.py
index ea567a2..b386afa 100644
--- a/src/engine/SCons/Platform/win32.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Platform/win32.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
@@ -51,10 +51,6 @@ try:
     import msvcrt
     import win32api
     import win32con
-
-    msvcrt.get_osfhandle
-    win32api.SetHandleInformation
-    win32con.HANDLE_FLAG_INHERIT
 except ImportError:
     parallel_msg = \
         "you do not seem to have the pywin32 extensions installed;\n" + \
@@ -66,28 +62,44 @@ except AttributeError:
 else:
     parallel_msg = None
 
-    _builtin_open = open
+    if sys.version_info.major == 2:
+        import __builtin__
+
+        _builtin_file = __builtin__.file
+        _builtin_open = __builtin__.open
+
+        def _scons_fixup_mode(mode):
+            """Adjust 'mode' to mark handle as non-inheritable.
+
+            SCons is multithreaded, so allowing handles to be inherited by
+            children opens us up to races, where (e.g.) processes spawned by
+            the Taskmaster may inherit and retain references to files opened
+            by other threads. This may lead to sharing violations and,
+            ultimately, build failures.
+
+            By including 'N' as part of fopen's 'mode' parameter, all file
+            handles returned from these functions are atomically marked as
+            non-inheritable.
+            """
+            if not mode:
+                # Python's default is 'r'.
+                # https://docs.python.org/2/library/functions.html#open
+                mode = 'rN'
+            elif 'N' not in mode:
+                mode += 'N'
+            return mode
 
-    def _scons_open(*args, **kw):
-        fp = _builtin_open(*args, **kw)
-        win32api.SetHandleInformation(msvcrt.get_osfhandle(fp.fileno()),
-                                      win32con.HANDLE_FLAG_INHERIT,
-                                      0)
-        return fp
+        class _scons_file(_builtin_file):
+            def __init__(self, name, mode=None, *args, **kwargs):
+                _builtin_file.__init__(self, name, _scons_fixup_mode(mode),
+                                       *args, **kwargs)
 
-    open = _scons_open
+        def _scons_open(name, mode=None, *args, **kwargs):
+            return _builtin_open(name, _scons_fixup_mode(mode),
+                                 *args, **kwargs)
 
-    if sys.version_info.major == 2:
-        _builtin_file = file
-        class _scons_file(_builtin_file):
-            def __init__(self, *args, **kw):
-                _builtin_file.__init__(self, *args, **kw)
-                win32api.SetHandleInformation(msvcrt.get_osfhandle(self.fileno()),
-                 win32con.HANDLE_FLAG_INHERIT, 0)
-        file = _scons_file
-    else:
-        # No longer needed for python 3.4 and above. Files are opened non sharable
-        pass
+        __builtin__.file = _scons_file
+        __builtin__.open = _scons_open
 
 
 
diff --git a/src/engine/SCons/Platform/win32.xml b/src/engine/SCons/Platform/win32.xml
index cc87470..c15b23b 100644
--- a/src/engine/SCons/Platform/win32.xml
+++ b/src/engine/SCons/Platform/win32.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/SConf.py b/src/engine/SCons/SConf.py
index 7409c50..e714636 100644
--- a/src/engine/SCons/SConf.py
+++ b/src/engine/SCons/SConf.py
@@ -35,7 +35,7 @@ libraries are installed, if some command line options are supported etc.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/SConf.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/SConf.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/SConfTests.py b/src/engine/SCons/SConfTests.py
index bfa4871..a05eec4 100644
--- a/src/engine/SCons/SConfTests.py
+++ b/src/engine/SCons/SConfTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/SConfTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/SConfTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
@@ -56,6 +56,18 @@ class SConfTestCase(unittest.TestCase):
         os.chdir(self.save_cwd)
 
     def _resetSConfState(self):
+        if sys.platform in ['cygwin', 'win32'] and sys.version_info.major == 2:
+            # On Windows with Python2, SCons.Platform.win32 redefines the
+            # built-in file() and open() functions to disable handle
+            # inheritance. Because we are unloading all SCons modules other
+            # than SCons.Compat, SCons.Platform.win32 will lose the variables
+            # it needs. As a result, we should reset the file() and open()
+            # functions to their original built-in versions.
+            import __builtin__
+            import SCons.Platform.win32
+            __builtin__.file = SCons.Platform.win32._builtin_file
+            __builtin__.open = SCons.Platform.win32._builtin_open
+
         # Ok, this is tricky, and i do not know, if everything is sane.
         # We try to reset scons' state (including all global variables)
         import SCons.SConsign
@@ -90,22 +102,6 @@ class SConfTestCase(unittest.TestCase):
             global existing_lib
             existing_lib = 'm'
 
-        if sys.platform in ['cygwin', 'win32']:
-             # On Windows, SCons.Platform.win32 redefines the builtin
-             # file() and open() functions to close the file handles.
-             # This interferes with the unittest.py infrastructure in
-             # some way.  Just sidestep the issue by restoring the
-             # original builtin functions whenever we have to reset
-             # all of our global state.
-
-             import SCons.Platform.win32
-
-             try:
-                file = SCons.Platform.win32._builtin_file
-                open = SCons.Platform.win32._builtin_open
-             except AttributeError:
-                 pass
-
     def _baseTryXXX(self, TryFunc):
         # TryCompile and TryLink are much the same, so we can test them
         # in one method, we pass the function as a string ('TryCompile',
diff --git a/src/engine/SCons/SConsign.py b/src/engine/SCons/SConsign.py
index e003933..24bfd21 100644
--- a/src/engine/SCons/SConsign.py
+++ b/src/engine/SCons/SConsign.py
@@ -29,7 +29,7 @@ Writing and reading information to the .sconsign file or files.
 
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/SConsign.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/SConsign.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/SConsignTests.py b/src/engine/SCons/SConsignTests.py
index 1ae1f47..fbac8a4 100644
--- a/src/engine/SCons/SConsignTests.py
+++ b/src/engine/SCons/SConsignTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/SConsignTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/SConsignTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/Scanner/C.py b/src/engine/SCons/Scanner/C.py
index 206de5f..32e0499 100644
--- a/src/engine/SCons/Scanner/C.py
+++ b/src/engine/SCons/Scanner/C.py
@@ -27,7 +27,7 @@ This module implements the dependency scanner for C/C++ code.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/C.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/C.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/src/engine/SCons/Scanner/CTests.py b/src/engine/SCons/Scanner/CTests.py
index 8e1e3b3..ff27e22 100644
--- a/src/engine/SCons/Scanner/CTests.py
+++ b/src/engine/SCons/Scanner/CTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/CTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/CTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Scanner/D.py b/src/engine/SCons/Scanner/D.py
index 1ad9e89..427c596 100644
--- a/src/engine/SCons/Scanner/D.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/D.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Scanner
 
diff --git a/src/engine/SCons/Scanner/DTests.py b/src/engine/SCons/Scanner/DTests.py
index f115eb0..8f79920 100644
--- a/src/engine/SCons/Scanner/DTests.py
+++ b/src/engine/SCons/Scanner/DTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/DTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/DTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import unittest
 
diff --git a/src/engine/SCons/Scanner/Dir.py b/src/engine/SCons/Scanner/Dir.py
index be8ae6c..c3e825c 100644
--- a/src/engine/SCons/Scanner/Dir.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/Dir.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/src/engine/SCons/Scanner/DirTests.py b/src/engine/SCons/Scanner/DirTests.py
index 71e527f..49f2518 100644
--- a/src/engine/SCons/Scanner/DirTests.py
+++ b/src/engine/SCons/Scanner/DirTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/DirTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/DirTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Scanner/Fortran.py b/src/engine/SCons/Scanner/Fortran.py
index d315bc9..93be76c 100644
--- a/src/engine/SCons/Scanner/Fortran.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/Fortran.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import re
 
diff --git a/src/engine/SCons/Scanner/FortranTests.py b/src/engine/SCons/Scanner/FortranTests.py
index 5bf4be6..42c399b 100644
--- a/src/engine/SCons/Scanner/FortranTests.py
+++ b/src/engine/SCons/Scanner/FortranTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/FortranTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/FortranTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Scanner/IDL.py b/src/engine/SCons/Scanner/IDL.py
index 88226e6..6569c1f 100644
--- a/src/engine/SCons/Scanner/IDL.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/IDL.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/src/engine/SCons/Scanner/IDLTests.py b/src/engine/SCons/Scanner/IDLTests.py
index 9bc4e5a..68a29c6 100644
--- a/src/engine/SCons/Scanner/IDLTests.py
+++ b/src/engine/SCons/Scanner/IDLTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/IDLTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/IDLTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import unittest
 import sys
diff --git a/src/engine/SCons/Scanner/LaTeX.py b/src/engine/SCons/Scanner/LaTeX.py
index 8afe5b0..4e43eaa 100644
--- a/src/engine/SCons/Scanner/LaTeX.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/LaTeX.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import re
diff --git a/src/engine/SCons/Scanner/LaTeXTests.py b/src/engine/SCons/Scanner/LaTeXTests.py
index 8750000..9c2bfbb 100644
--- a/src/engine/SCons/Scanner/LaTeXTests.py
+++ b/src/engine/SCons/Scanner/LaTeXTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/LaTeXTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/LaTeXTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Scanner/Prog.py b/src/engine/SCons/Scanner/Prog.py
index 2ae3c68..5f9015d 100644
--- a/src/engine/SCons/Scanner/Prog.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/Prog.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Node
 import SCons.Node.FS
diff --git a/src/engine/SCons/Scanner/ProgTests.py b/src/engine/SCons/Scanner/ProgTests.py
index 7dae37c..fc6b1ff 100644
--- a/src/engine/SCons/Scanner/ProgTests.py
+++ b/src/engine/SCons/Scanner/ProgTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/ProgTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/ProgTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Scanner/RC.py b/src/engine/SCons/Scanner/RC.py
index 4f0cee2..47c6ca2 100644
--- a/src/engine/SCons/Scanner/RC.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/RC.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import re
 
diff --git a/src/engine/SCons/Scanner/RCTests.py b/src/engine/SCons/Scanner/RCTests.py
index 2915985..f2c74a3 100644
--- a/src/engine/SCons/Scanner/RCTests.py
+++ b/src/engine/SCons/Scanner/RCTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/RCTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/RCTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import unittest
 import sys
diff --git a/src/engine/SCons/Scanner/SWIG.py b/src/engine/SCons/Scanner/SWIG.py
index 5f2a3e3..7ff78a6 100644
--- a/src/engine/SCons/Scanner/SWIG.py
+++ b/src/engine/SCons/Scanner/SWIG.py
@@ -27,7 +27,7 @@ This module implements the dependency scanner for SWIG code.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/SWIG.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/SWIG.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Scanner
 
diff --git a/src/engine/SCons/Scanner/ScannerTests.py b/src/engine/SCons/Scanner/ScannerTests.py
index 64842d4..3649120 100644
--- a/src/engine/SCons/Scanner/ScannerTests.py
+++ b/src/engine/SCons/Scanner/ScannerTests.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/ScannerTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/ScannerTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Scanner/__init__.py b/src/engine/SCons/Scanner/__init__.py
index feff12a..9884533 100644
--- a/src/engine/SCons/Scanner/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Scanner/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import re
 
diff --git a/src/engine/SCons/Scanner/__init__.xml b/src/engine/SCons/Scanner/__init__.xml
index 436d806..1043234 100644
--- a/src/engine/SCons/Scanner/__init__.xml
+++ b/src/engine/SCons/Scanner/__init__.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Script/Interactive.py b/src/engine/SCons/Script/Interactive.py
index 3d70728..b2c134c 100644
--- a/src/engine/SCons/Script/Interactive.py
+++ b/src/engine/SCons/Script/Interactive.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Script/Interactive.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/Interactive.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """
 SCons interactive mode
diff --git a/src/engine/SCons/Script/Main.py b/src/engine/SCons/Script/Main.py
index 878f824..5b7406c 100644
--- a/src/engine/SCons/Script/Main.py
+++ b/src/engine/SCons/Script/Main.py
@@ -38,7 +38,7 @@ 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/Main.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 import SCons.compat
@@ -75,6 +75,7 @@ print_objects = 0
 print_memoizer = 0
 print_stacktrace = 0
 print_time = 0
+print_action_timestamps = 0
 sconscript_time = 0
 cumulative_command_time = 0
 exit_status = 0   # final exit status, assume success by default
@@ -209,6 +210,9 @@ class BuildTask(SCons.Taskmaster.OutOfDateTask):
             finish_time = time.time()
             last_command_end = finish_time
             cumulative_command_time = cumulative_command_time+finish_time-start_time
+            if print_action_timestamps:
+                sys.stdout.write("Command execution start timestamp: %s: %f\n"%(str(self.node), start_time))
+                sys.stdout.write("Command execution end timestamp: %s: %f\n"%(str(self.node), finish_time))
             sys.stdout.write("Command execution time: %s: %f seconds\n"%(str(self.node), finish_time-start_time))
 
     def do_failed(self, status=2):
@@ -636,7 +640,7 @@ def _SConstruct_exists(dirname='', repositories=[], filelist=None):
     return None
 
 def _set_debug_values(options):
-    global print_memoizer, print_objects, print_stacktrace, print_time
+    global print_memoizer, print_objects, print_stacktrace, print_time, print_action_timestamps
 
     debug_values = options.debug
 
@@ -674,6 +678,9 @@ def _set_debug_values(options):
         options.tree_printers.append(TreePrinter(status=True))
     if "time" in debug_values:
         print_time = 1
+    if "action-timestamps" in debug_values:
+        print_time = 1
+        print_action_timestamps = 1
     if "tree" in debug_values:
         options.tree_printers.append(TreePrinter())
     if "prepare" in debug_values:
diff --git a/src/engine/SCons/Script/Main.xml b/src/engine/SCons/Script/Main.xml
index c1c4bde..9966244 100644
--- a/src/engine/SCons/Script/Main.xml
+++ b/src/engine/SCons/Script/Main.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -33,11 +33,11 @@ See its __doc__ string for a discussion of the format.
 This function adds a new command-line option to be recognized.
 The specified
 <varname>arguments</varname>
-are the same as supported by the standard Python
-<function>optparse.add_option</function>()
-method (with a few additional capabilities noted below);
+are the same as supported by the <function>add_option</function>
+method in the standard Python library module <emphasis>optparse</emphasis>,
+with a few additional capabilities noted below;
 see the documentation for
-<literal>optparse</literal>
+<emphasis>optparse</emphasis>
 for a thorough discussion of its option-processing capabities.
 </para>
 
@@ -78,12 +78,22 @@ the option will have a default value of
 </para>
 
 <para>
+Unlike regular <emphasis>optparse</emphasis>, option names
+added via <function>AddOption</function> must be matched
+exactly, the automatic matching of abbreviations on the
+command line for long options is not supported.
+To allow specific abbreviations,
+include them in the &f-AddOption; call.
+</para>
+
+<para>
 Once a new command-line option has been added with
 &f-AddOption;,
 the option value may be accessed using
 &f-GetOption;
 or
 <function>env.GetOption</function>().
+<!--
 The value may also be set, using
 &f-SetOption;
 or
@@ -95,6 +105,9 @@ Note, however, that a
 value specified on the command line will
 <emphasis>always</emphasis>
 override a value set by any SConscript file.
+-->
+&f-SetOption; is not currently supported for
+options added with &f-AddOption;.
 </para>
 
 <para>
@@ -133,6 +146,22 @@ AddOption('--prefix',
           help='installation prefix')
 env = Environment(PREFIX = GetOption('prefix'))
 </example_commands>
+
+<note>
+<para>
+While &AddOption; behaves like
+<function>add_option</function>,
+from the <emphasis>optparse</emphasis> module,
+the behavior of options added by &AddOption;
+which take arguments is underfined in
+<command>scons</command> if whitespace
+(rather than an <literal>=</literal> sign) is used as
+the separator on the command line when
+the option is invoked.
+Such usage should be avoided.
+</para>
+</note>
+
 </summary>
 </scons_function>
 
diff --git a/src/engine/SCons/Script/MainTests.py b/src/engine/SCons/Script/MainTests.py
index 752ea0a..188700a 100644
--- a/src/engine/SCons/Script/MainTests.py
+++ b/src/engine/SCons/Script/MainTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Script/MainTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/MainTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import unittest
 
diff --git a/src/engine/SCons/Script/SConsOptions.py b/src/engine/SCons/Script/SConsOptions.py
index 5651c96..e7a3fc1 100644
--- a/src/engine/SCons/Script/SConsOptions.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/SConsOptions.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import optparse
 import re
@@ -584,9 +584,15 @@ def Parser(version):
                   help="Print build actions for files from CacheDir.")
 
     def opt_invalid(group, value, options):
+        """report an invalid option from a group"""
         errmsg  = "`%s' is not a valid %s option type, try:\n" % (value, group)
         return errmsg + "    %s" % ", ".join(options)
 
+    def opt_invalid_rm(group, value, msg):
+        """report an invalid option from a group: recognized but removed"""
+        errmsg  = "`%s' is not a valid %s option type " % (value, group)
+        return errmsg + msg
+
     config_options = ["auto", "force" ,"cache"]
 
     opt_config_help = "Controls Configure subsystem: %s." \
@@ -604,9 +610,11 @@ def Parser(version):
                   help="Search up directory tree for SConstruct,       "
                        "build all Default() targets.")
 
-    deprecated_debug_options = {
+    deprecated_debug_options = {}
+
+    removed_debug_options = {
         "dtree"         : '; please use --tree=derived instead',
-        "nomemoizer"    : ' and has no effect',
+        "nomemoizer"    : '; there is no replacement',
         "stree"         : '; please use --tree=all,status instead',
         "tree"          : '; please use --tree=all instead',
     }
@@ -614,15 +622,16 @@ def Parser(version):
     debug_options = ["count", "duplicate", "explain", "findlibs",
                      "includes", "memoizer", "memory", "objects",
                      "pdb", "prepare", "presub", "stacktrace",
-                     "time"]
+                     "time", "action-timestamps"]
 
     def opt_debug(option, opt, value__, parser,
                   debug_options=debug_options,
-                  deprecated_debug_options=deprecated_debug_options):
+                  deprecated_debug_options=deprecated_debug_options,
+                  removed_debug_options=removed_debug_options):
         for value in value__.split(','):
             if value in debug_options:
                 parser.values.debug.append(value)
-            elif value in list(deprecated_debug_options.keys()):
+            elif value in deprecated_debug_options:
                 parser.values.debug.append(value)
                 try:
                     parser.values.delayed_warnings
@@ -632,6 +641,9 @@ def Parser(version):
                 w = "The --debug=%s option is deprecated%s." % (value, msg)
                 t = (SCons.Warnings.DeprecatedDebugOptionsWarning, w)
                 parser.values.delayed_warnings.append(t)
+            elif value in removed_debug_options:
+                msg = removed_debug_options[value]
+                raise OptionValueError(opt_invalid_rm('debug', value, msg))
             else:
                 raise OptionValueError(opt_invalid('debug', value, debug_options))
 
diff --git a/src/engine/SCons/Script/SConscript.py b/src/engine/SCons/Script/SConscript.py
index 9687c29..97073ba 100644
--- a/src/engine/SCons/Script/SConscript.py
+++ b/src/engine/SCons/Script/SConscript.py
@@ -27,7 +27,7 @@ files.
 # 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/SConscript.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/SConscript.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons
 import SCons.Action
@@ -42,7 +42,7 @@ import SCons.Platform
 import SCons.SConf
 import SCons.Script.Main
 import SCons.Tool
-import SCons.Util
+from SCons.Util import is_List, is_String, is_Dict, flatten
 
 from . import Main
 
@@ -98,7 +98,7 @@ def compute_exports(exports):
     retval = {}
     try:
         for export in exports:
-            if SCons.Util.is_Dict(export):
+            if is_Dict(export):
                 retval.update(export)
             else:
                 try:
@@ -133,7 +133,7 @@ call_stack = []
 def Return(*vars, **kw):
     retval = []
     try:
-        fvars = SCons.Util.flatten(vars)
+        fvars = flatten(vars)
         for var in fvars:
             for v in var.split():
                 retval.append(call_stack[-1].globals[v])
@@ -420,7 +420,7 @@ class SConsEnvironment(SCons.Environment.Base):
             except KeyError:
                 raise SCons.Errors.UserError("Invalid SConscript usage - no parameters")
 
-            if not SCons.Util.is_List(dirs):
+            if not is_List(dirs):
                 dirs = [ dirs ]
             dirs = list(map(str, dirs))
 
@@ -441,13 +441,13 @@ class SConsEnvironment(SCons.Environment.Base):
 
             raise SCons.Errors.UserError("Invalid SConscript() usage - too many arguments")
 
-        if not SCons.Util.is_List(files):
+        if not is_List(files):
             files = [ files ]
 
         if kw.get('exports'):
             exports.extend(self.Split(kw['exports']))
 
-        variant_dir = kw.get('variant_dir') or kw.get('build_dir')
+        variant_dir = kw.get('variant_dir')
         if variant_dir:
             if len(files) != 1:
                 raise SCons.Errors.UserError("Invalid SConscript() usage - can only specify one SConscript with a variant_dir")
@@ -577,9 +577,6 @@ class SConsEnvironment(SCons.Environment.Base):
             UserError: a script is not found and such exceptions are enabled.
         """
 
-        if 'build_dir' in kw:
-            msg = """The build_dir keyword has been deprecated; use the variant_dir keyword instead."""
-            SCons.Warnings.warn(SCons.Warnings.DeprecatedBuildDirWarning, msg)
         def subst_element(x, subst=self.subst):
             if SCons.Util.is_List(x):
                 x = list(map(subst, x))
@@ -589,15 +586,10 @@ class SConsEnvironment(SCons.Environment.Base):
         ls = list(map(subst_element, ls))
         subst_kw = {}
         for key, val in kw.items():
-            if SCons.Util.is_String(val):
+            if is_String(val):
                 val = self.subst(val)
             elif SCons.Util.is_List(val):
-                result = []
-                for v in val:
-                    if SCons.Util.is_String(v):
-                        v = self.subst(v)
-                    result.append(v)
-                val = result
+                val = [self.subst(v) if is_String(v) else v for v in val]
             subst_kw[key] = val
 
         files, exports = self._get_SConscript_filenames(ls, subst_kw)
diff --git a/src/engine/SCons/Script/SConscript.xml b/src/engine/SCons/Script/SConscript.xml
index 2d77aa3..5b5e482 100644
--- a/src/engine/SCons/Script/SConscript.xml
+++ b/src/engine/SCons/Script/SConscript.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Script/SConscriptTests.py b/src/engine/SCons/Script/SConscriptTests.py
index c1232e8..8b17ed4 100644
--- a/src/engine/SCons/Script/SConscriptTests.py
+++ b/src/engine/SCons/Script/SConscriptTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Script/SConscriptTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/SConscriptTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Script.SConscript
 
diff --git a/src/engine/SCons/Script/__init__.py b/src/engine/SCons/Script/__init__.py
index cf2e472..5292c10 100644
--- a/src/engine/SCons/Script/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Script/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import time
 start_time = time.time()
@@ -314,7 +314,6 @@ GlobalDefaultEnvironmentFunctions = [
     'AddPreAction',
     'Alias',
     'AlwaysBuild',
-    'BuildDir',
     'CacheDir',
     'Clean',
     #The Command() method is handled separately, below.
@@ -346,10 +345,8 @@ GlobalDefaultEnvironmentFunctions = [
     'SConsignFile',
     'SideEffect',
     'SourceCode',
-    'SourceSignatures',
     'Split',
     'Tag',
-    'TargetSignatures',
     'Value',
     'VariantDir',
 ]
diff --git a/src/engine/SCons/Subst.py b/src/engine/SCons/Subst.py
index 1e0d423..23030f4 100644
--- a/src/engine/SCons/Subst.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Subst.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import collections
 import re
@@ -409,7 +409,7 @@ def scons_subst(strSubst, env, mode=SUBST_RAW, target=None, source=None, gvars={
     handles separating command lines into lists of arguments, so see
     that function if that's what you're looking for.
     """
-    if isinstance(strSubst, str) and strSubst.find('$') < 0:
+    if (isinstance(strSubst, str) and '$' not in strSubst) or isinstance(strSubst, CmdStringHolder):
         return strSubst
 
     class StringSubber(object):
diff --git a/src/engine/SCons/Subst.xml b/src/engine/SCons/Subst.xml
index 858ff40..d69ea38 100644
--- a/src/engine/SCons/Subst.xml
+++ b/src/engine/SCons/Subst.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/SubstTests.py b/src/engine/SCons/SubstTests.py
index 49a9a2f..5dcdea4 100644
--- a/src/engine/SCons/SubstTests.py
+++ b/src/engine/SCons/SubstTests.py
@@ -22,7 +22,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/SubstTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/SubstTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Taskmaster.py b/src/engine/SCons/Taskmaster.py
index 29e48ac..60d2ac3 100644
--- a/src/engine/SCons/Taskmaster.py
+++ b/src/engine/SCons/Taskmaster.py
@@ -54,7 +54,7 @@ __doc__ = """
         target(s) that it decides need to be evaluated and/or built.
 """
 
-__revision__ = "src/engine/SCons/Taskmaster.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Taskmaster.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from itertools import chain
 import operator
@@ -874,8 +874,10 @@ class Taskmaster(object):
             # These nodes have not even been visited yet.  Add
             # them to the list so that on some next pass we can
             # take a stab at evaluating them (or their children).
-            children_not_visited.reverse()
-            self.candidates.extend(self.order(children_not_visited))
+            if children_not_visited:
+                if len(children_not_visited) > 1:
+                    children_not_visited.reverse()
+                self.candidates.extend(self.order(children_not_visited))
 
             # if T and children_not_visited:
             #    T.write(self.trace_message('     adding to candidates: %s' % map(str, children_not_visited)))
diff --git a/src/engine/SCons/TaskmasterTests.py b/src/engine/SCons/TaskmasterTests.py
index 218870e..fc6e5fc 100644
--- a/src/engine/SCons/TaskmasterTests.py
+++ b/src/engine/SCons/TaskmasterTests.py
@@ -22,7 +22,7 @@
 #
 from __future__ import division
 
-__revision__ = "src/engine/SCons/TaskmasterTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/TaskmasterTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Tool/386asm.py b/src/engine/SCons/Tool/386asm.py
index 1121c3d..d398f07 100644
--- a/src/engine/SCons/Tool/386asm.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/386asm.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.PharLapCommon import addPharLapPaths
 import SCons.Util
diff --git a/src/engine/SCons/Tool/386asm.xml b/src/engine/SCons/Tool/386asm.xml
index fe819d2..8ad9fa9 100644
--- a/src/engine/SCons/Tool/386asm.xml
+++ b/src/engine/SCons/Tool/386asm.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/DCommon.py b/src/engine/SCons/Tool/DCommon.py
index f6b6000..0e0cf09 100644
--- a/src/engine/SCons/Tool/DCommon.py
+++ b/src/engine/SCons/Tool/DCommon.py
@@ -31,7 +31,7 @@ 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/DCommon.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/DCommon.xml b/src/engine/SCons/Tool/DCommon.xml
index 5103ca1..63e6c45 100644
--- a/src/engine/SCons/Tool/DCommon.xml
+++ b/src/engine/SCons/Tool/DCommon.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -23,49 +23,339 @@ See its __doc__ string for a discussion of the format.
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.scons.org/dbxsd/v1.0/scons.xsd">
 
+<cvar name="DC">
+<summary>
+<para>
+The D compiler to use.
+</para>
+</summary>
+</cvar>
 
+<cvar name="DCOM">
+<summary>
+<para>
+The command line used to compile a D file to an object file.
+Any options specified in the &cv-link-DFLAGS; construction variable
+is included on this command line.
+</para>
+</summary>
+</cvar>
 
+<cvar name="DDEBUG">
+<summary>
+<para>
+List of debug tags to enable when compiling.
+</para>
+</summary>
+</cvar>
 
+<cvar name="DDEBUGPREFIX">
+<summary>
+<para>
+DDEBUGPREFIX.
+</para>
+</summary>
+</cvar>
 
-    <cvar name="DRPATHPREFIX">
-        <summary>
-            <para>
-                DRPATHPREFIX.
-            </para>
-        </summary>
-    </cvar>
-
-    <cvar name="DRPATHSUFFIX">
-        <summary>
-            <para>
-                DRPATHSUFFIX.
-            </para>
-        </summary>
-    </cvar>
-
-
-    <cvar name="DShLibSonameGenerator">
-        <summary>
-            <para>
-                DShLibSonameGenerator.
-            </para>
-        </summary>
-    </cvar>
-
-    <cvar name="SHDLIBVERSION">
-        <summary>
-            <para>
-                SHDLIBVERSION.
-            </para>
-        </summary>
-    </cvar>
-    <cvar name="SHDLIBVERSIONFLAGS">
-        <summary>
-            <para>
-                SHDLIBVERSIONFLAGS.
-            </para>
-        </summary>
-    </cvar>
+<cvar name="DDEBUGSUFFIX">
+<summary>
+<para>
+DDEBUGSUFFIX.
+</para>
+</summary>
+</cvar>
 
+<cvar name="DFILESUFFIX">
+<summary>
+<para>
+DFILESUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DFLAGPREFIX">
+<summary>
+<para>
+DFLAGPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DFLAGS">
+<summary>
+<para>
+General options that are passed to the D compiler.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DFLAGSUFFIX">
+<summary>
+<para>
+DFLAGSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DINCSUFFIX">
+<summary>
+<para>
+DLIBFLAGSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DINCPREFIX">
+<summary>
+<para>
+DINCPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIB">
+<summary>
+<para>
+Name of the lib tool to use for D codes.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBCOM">
+<summary>
+<para>
+The command line to use when creating libraries.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBDIRPREFIX">
+<summary>
+<para>
+DLIBLINKPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBDIRSUFFIX">
+<summary>
+<para>
+DLIBLINKSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBFLAGSUFFIX">
+<summary>
+<para>
+DLIBFLAGSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBFLAGPREFIX">
+<summary>
+<para>
+DLIBFLAGPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBLINKPREFIX">
+<summary>
+<para>
+DLIBLINKPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLIBLINKSUFFIX">
+<summary>
+<para>
+DLIBLINKSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLINK">
+<summary>
+<para>
+Name of the linker to use for linking systems including D sources.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLINKCOM">
+<summary>
+<para>
+The command line to use when linking systems including D sources.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLINKFLAGS">
+<summary>
+<para>
+List of linker flags.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLINKFLAGSUFFIX">
+<summary>
+<para>
+DLINKFLAGSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DLINKFLAGPREFIX">
+<summary>
+<para>
+DLINKFLAGPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DPATH">
+<summary>
+<para>
+  List of paths to search for import modules.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DRPATHPREFIX">
+<summary>
+<para>
+DRPATHPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DRPATHSUFFIX">
+<summary>
+<para>
+DRPATHSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DShLibSonameGenerator">
+<summary>
+<para>
+DShLibSonameGenerator.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DVERPREFIX">
+<summary>
+<para>
+DVERPREFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DVERSIONS">
+<summary>
+<para>
+List of version tags to enable when compiling.
+</para>
+</summary>
+</cvar>
+
+<cvar name="DVERSUFFIX">
+<summary>
+<para>
+DVERSUFFIX.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDC">
+<summary>
+<para>
+The name of the compiler to use when compiling D source
+destined to be in a shared objects.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDCOM">
+<summary>
+<para>
+The command line to use when compiling code to be part of shared objects.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDLIBVERSION">
+<summary>
+<para>
+SHDLIBVERSION.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDLIBVERSIONFLAGS">
+<summary>
+<para>
+SHDLIBVERSIONFLAGS.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDLINK">
+<summary>
+<para>
+The linker to use when creating shared objects for code bases
+include D sources.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDLINKCOM">
+<summary>
+<para>
+The command line to use when generating shared objects.
+</para>
+</summary>
+</cvar>
+
+<cvar name="SHDLINKFLAGS">
+<summary>
+<para>
+The list of flags to use when generating a shared object.
+</para>
+</summary>
+</cvar>
+
+
+<builder name="ProgramAllAtOnce">
+<summary>
+  <para>
+    Builds an executable from D sources without first creating individual
+    objects for each file.
+  </para>
+  <para>
+    D sources can be compiled file-by-file as C and C++ source are, and
+    D is integrated into the &scons; Object and Program builders for
+    this model of build. D codes can though do whole source
+    meta-programming (some of the testing frameworks do this). For this
+    it is imperative that all sources are compiled and linked in a single
+    call to the D compiler. This builder serves that purpose.
+  </para>
+  <example_commands>
+    env.ProgramAllAtOnce('executable', ['mod_a.d, mod_b.d', 'mod_c.d'])
+  </example_commands>
+  <para>
+    This command will compile the modules mod_a, mod_b, and mod_c in a
+    single compilation process without first creating object files for
+    the modules. Some of the D compilers will create executable.o others
+    will not.
+  </para>
+</summary>
+</builder>
 
 </sconsdoc>
diff --git a/src/engine/SCons/Tool/FortranCommon.py b/src/engine/SCons/Tool/FortranCommon.py
index 11f1eb7..af573fa 100644
--- a/src/engine/SCons/Tool/FortranCommon.py
+++ b/src/engine/SCons/Tool/FortranCommon.py
@@ -28,7 +28,7 @@ Stuff for processing Fortran, common to all fortran dialects.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/FortranCommon.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/FortranCommon.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import re
 import os.path
diff --git a/src/engine/SCons/Tool/FortranCommonTests.py b/src/engine/SCons/Tool/FortranCommonTests.py
index 9cca9b0..726b4bf 100644
--- a/src/engine/SCons/Tool/FortranCommonTests.py
+++ b/src/engine/SCons/Tool/FortranCommonTests.py
@@ -22,7 +22,7 @@
 #
 # from typing import Dict, Any
 
-__revision__ = "src/engine/SCons/Tool/FortranCommonTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/FortranCommonTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/GettextCommon.py b/src/engine/SCons/Tool/GettextCommon.py
index 79912b6..f03c256 100644
--- a/src/engine/SCons/Tool/GettextCommon.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/GettextCommon.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Warnings
 import re
diff --git a/src/engine/SCons/Tool/JavaCommon.py b/src/engine/SCons/Tool/JavaCommon.py
index 1e58af6..f9e3684 100644
--- a/src/engine/SCons/Tool/JavaCommon.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/JavaCommon.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/JavaCommonTests.py b/src/engine/SCons/Tool/JavaCommonTests.py
index 45a8a0b..ec5bb74 100644
--- a/src/engine/SCons/Tool/JavaCommonTests.py
+++ b/src/engine/SCons/Tool/JavaCommonTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/JavaCommonTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/JavaCommonTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Tool/MSCommon/__init__.py b/src/engine/SCons/Tool/MSCommon/__init__.py
index e3c4471..c184aad 100644
--- a/src/engine/SCons/Tool/MSCommon/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """
 Common functions for Microsoft Visual Studio and Visual C/C++.
diff --git a/src/engine/SCons/Tool/MSCommon/arch.py b/src/engine/SCons/Tool/MSCommon/arch.py
index 6312541..75e7264 100644
--- a/src/engine/SCons/Tool/MSCommon/arch.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/arch.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """Module to define supported Windows chip architectures.
 """
diff --git a/src/engine/SCons/Tool/MSCommon/common.py b/src/engine/SCons/Tool/MSCommon/common.py
index 8353944..6f979e6 100644
--- a/src/engine/SCons/Tool/MSCommon/common.py
+++ b/src/engine/SCons/Tool/MSCommon/common.py
@@ -25,31 +25,67 @@ Common helper functions for working with the Microsoft tool chain.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/common.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/common.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import copy
+import json
 import os
-import subprocess
 import re
+import subprocess
+import sys
 
 import SCons.Util
 
+# SCONS_MSCOMMON_DEBUG is internal-use so undocumented:
+# set to '-' to print to console, else set to filename to log to
 LOGFILE = os.environ.get('SCONS_MSCOMMON_DEBUG')
 if LOGFILE == '-':
     def debug(message):
         print(message)
 elif LOGFILE:
-    try:
-        import logging
-    except ImportError:
-        debug = lambda message: open(LOGFILE, 'a').write(message + '\n')
-    else:
-        logging.basicConfig(filename=LOGFILE, level=logging.DEBUG)
-        debug = logging.getLogger(name=__name__).debug
+    import logging
+    logging.basicConfig(
+        format='%(relativeCreated)05dms:pid%(process)05d:MSCommon/%(filename)s:%(message)s',
+        filename=LOGFILE,
+        level=logging.DEBUG)
+    debug = logging.getLogger(name=__name__).debug
 else:
     debug = lambda x: None
 
 
+# SCONS_CACHE_MSVC_CONFIG is public, and is documented.
+CONFIG_CACHE = os.environ.get('SCONS_CACHE_MSVC_CONFIG')
+if CONFIG_CACHE in ('1', 'true', 'True'):
+    CONFIG_CACHE = os.path.join(os.path.expanduser('~'), '.scons_msvc_cache')
+
+def read_script_env_cache():
+    """ fetch cached msvc env vars if requested, else return empty dict """
+    envcache = {}
+    if CONFIG_CACHE:
+        try:
+            with open(CONFIG_CACHE, 'r') as f:
+                envcache = json.load(f)
+        #TODO can use more specific FileNotFoundError when py2 dropped
+        except IOError:
+            # don't fail if no cache file, just proceed without it
+            pass
+    return envcache
+
+
+def write_script_env_cache(cache):
+    """ write out cache of msvc env vars if requested """
+    if CONFIG_CACHE:
+        try:
+            with open(CONFIG_CACHE, 'w') as f:
+                json.dump(cache, f, indent=2)
+        except TypeError:
+            # data can't serialize to json, don't leave partial file
+            os.remove(CONFIG_CACHE)
+        except IOError:
+            # can't write the file, just skip
+            pass
+
+
 _is_win64 = None
 
 def is_win64():
@@ -199,7 +235,6 @@ def get_output(vcbat, args = None, env = None):
     if stderr:
         # TODO: find something better to do with stderr;
         # this at least prevents errors from getting swallowed.
-        import sys
         sys.stderr.write(stderr)
     if popen.wait() != 0:
         raise IOError(stderr.decode("mbcs"))
@@ -207,14 +242,15 @@ def get_output(vcbat, args = None, env = None):
     output = stdout.decode("mbcs")
     return output
 
-def parse_output(output, keep=("INCLUDE", "LIB", "LIBPATH", "PATH", 'VSCMD_ARG_app_plat')):
+KEEPLIST = ("INCLUDE", "LIB", "LIBPATH", "PATH", 'VSCMD_ARG_app_plat')
+def parse_output(output, keep=KEEPLIST):
     """
     Parse output from running visual c++/studios vcvarsall.bat and running set
     To capture the values listed in keep
     """
 
     # dkeep is a dict associating key: path_list, where key is one item from
-    # keep, and pat_list the associated list of paths
+    # keep, and path_list the associated list of paths
     dkeep = dict([(i, []) for i in keep])
 
     # rdk will  keep the regex to match the .bat file output line starts
diff --git a/src/engine/SCons/Tool/MSCommon/netframework.py b/src/engine/SCons/Tool/MSCommon/netframework.py
index edd9fd9..c2d5d7c 100644
--- a/src/engine/SCons/Tool/MSCommon/netframework.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/netframework.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """
 """
diff --git a/src/engine/SCons/Tool/MSCommon/sdk.py b/src/engine/SCons/Tool/MSCommon/sdk.py
index e664a30..811ee24 100644
--- a/src/engine/SCons/Tool/MSCommon/sdk.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/sdk.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """Module to detect the Platform/Windows SDK
 
@@ -118,11 +118,11 @@ class SDKDefinition(object):
         if (host_arch != target_arch):
             arch_string='%s_%s'%(host_arch,target_arch)
 
-        debug("sdk.py: get_sdk_vc_script():arch_string:%s host_arch:%s target_arch:%s"%(arch_string,
+        debug("get_sdk_vc_script():arch_string:%s host_arch:%s target_arch:%s"%(arch_string,
                                                            host_arch,
                                                            target_arch))
         file=self.vc_setup_scripts.get(arch_string,None)
-        debug("sdk.py: get_sdk_vc_script():file:%s"%file)
+        debug("get_sdk_vc_script():file:%s"%file)
         return file
 
 class WindowsSDK(SDKDefinition):
@@ -286,14 +286,14 @@ InstalledSDKMap = None
 def get_installed_sdks():
     global InstalledSDKList
     global InstalledSDKMap
-    debug('sdk.py:get_installed_sdks()')
+    debug('get_installed_sdks()')
     if InstalledSDKList is None:
         InstalledSDKList = []
         InstalledSDKMap = {}
         for sdk in SupportedSDKList:
-            debug('MSCommon/sdk.py: trying to find SDK %s' % sdk.version)
+            debug('trying to find SDK %s' % sdk.version)
             if sdk.get_sdk_dir():
-                debug('MSCommon/sdk.py:found SDK %s' % sdk.version)
+                debug('found SDK %s' % sdk.version)
                 InstalledSDKList.append(sdk)
                 InstalledSDKMap[sdk.version] = sdk
     return InstalledSDKList
@@ -346,13 +346,13 @@ def get_default_sdk():
     return InstalledSDKList[0]
 
 def mssdk_setup_env(env):
-    debug('sdk.py:mssdk_setup_env()')
+    debug('mssdk_setup_env()')
     if 'MSSDK_DIR' in env:
         sdk_dir = env['MSSDK_DIR']
         if sdk_dir is None:
             return
         sdk_dir = env.subst(sdk_dir)
-        debug('sdk.py:mssdk_setup_env: Using MSSDK_DIR:{}'.format(sdk_dir))
+        debug('mssdk_setup_env: Using MSSDK_DIR:{}'.format(sdk_dir))
     elif 'MSSDK_VERSION' in env:
         sdk_version = env['MSSDK_VERSION']
         if sdk_version is None:
@@ -364,22 +364,22 @@ def mssdk_setup_env(env):
             msg = "SDK version %s is not installed" % sdk_version
             raise SCons.Errors.UserError(msg)
         sdk_dir = mssdk.get_sdk_dir()
-        debug('sdk.py:mssdk_setup_env: Using MSSDK_VERSION:%s'%sdk_dir)
+        debug('mssdk_setup_env: Using MSSDK_VERSION:%s'%sdk_dir)
     elif 'MSVS_VERSION' in env:
         msvs_version = env['MSVS_VERSION']
-        debug('sdk.py:mssdk_setup_env:Getting MSVS_VERSION from env:%s'%msvs_version)
+        debug('mssdk_setup_env:Getting MSVS_VERSION from env:%s'%msvs_version)
         if msvs_version is None:
-            debug('sdk.py:mssdk_setup_env thinks msvs_version is None')
+            debug('mssdk_setup_env thinks msvs_version is None')
             return
         msvs_version = env.subst(msvs_version)
         from . import vs
         msvs = vs.get_vs_by_version(msvs_version)
-        debug('sdk.py:mssdk_setup_env:msvs is :%s'%msvs)
+        debug('mssdk_setup_env:msvs is :%s'%msvs)
         if not msvs:
-            debug('sdk.py:mssdk_setup_env: no VS version detected, bailingout:%s'%msvs)
+            debug('mssdk_setup_env: no VS version detected, bailingout:%s'%msvs)
             return
         sdk_version = msvs.sdk_version
-        debug('sdk.py:msvs.sdk_version is %s'%sdk_version)
+        debug('msvs.sdk_version is %s'%sdk_version)
         if not sdk_version:
             return
         mssdk = get_sdk_by_version(sdk_version)
@@ -388,13 +388,13 @@ def mssdk_setup_env(env):
             if not mssdk:
                 return
         sdk_dir = mssdk.get_sdk_dir()
-        debug('sdk.py:mssdk_setup_env: Using MSVS_VERSION:%s'%sdk_dir)
+        debug('mssdk_setup_env: Using MSVS_VERSION:%s'%sdk_dir)
     else:
         mssdk = get_default_sdk()
         if not mssdk:
             return
         sdk_dir = mssdk.get_sdk_dir()
-        debug('sdk.py:mssdk_setup_env: not using any env values. sdk_dir:%s'%sdk_dir)
+        debug('mssdk_setup_env: not using any env values. sdk_dir:%s'%sdk_dir)
 
     set_sdk_by_directory(env, sdk_dir)
 
diff --git a/src/engine/SCons/Tool/MSCommon/vc.py b/src/engine/SCons/Tool/MSCommon/vc.py
index fa7be96..6d0a7ec 100644
--- a/src/engine/SCons/Tool/MSCommon/vc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """Module for Visual C/C++ detection and configuration.
 """
@@ -40,7 +40,10 @@ import SCons.Util
 import subprocess
 import os
 import platform
+import sys
 from string import digits as string_digits
+if sys.version_info[0] == 2:
+    import collections
 
 import SCons.Warnings
 from SCons.Tool import find_program_path
@@ -152,22 +155,24 @@ def get_msvc_version_numeric(msvc_version):
     return ''.join([x for  x in msvc_version if x in string_digits + '.'])
 
 def get_host_target(env):
-    debug('vc.py:get_host_target()')
+    debug('get_host_target()')
 
     host_platform = env.get('HOST_ARCH')
     if not host_platform:
         host_platform = platform.machine()
-        # TODO(2.5):  the native Python platform.machine() function returns
-        # '' on all Python versions before 2.6, after which it also uses
-        # PROCESSOR_ARCHITECTURE.
-        if not host_platform:
-            host_platform = os.environ.get('PROCESSOR_ARCHITECTURE', '')
+
+    # Solaris returns i86pc for both 32 and 64 bit architectures
+    if host_platform == "i86pc":
+        if platform.architecture()[0] == "64bit":
+            host_platform = "amd64"
+        else:
+            host_platform = "x86"
 
     # Retain user requested TARGET_ARCH
     req_target_platform = env.get('TARGET_ARCH')
-    debug('vc.py:get_host_target() req_target_platform:%s'%req_target_platform)
+    debug('get_host_target() req_target_platform:%s'%req_target_platform)
 
-    if  req_target_platform:
+    if req_target_platform:
         # If user requested a specific platform then only try that one.
         target_platform = req_target_platform
     else:
@@ -403,7 +408,7 @@ def find_batch_file(env,msvc_version,host_arch,target_arch):
     if pdir is None:
         raise NoVersionFound("No version of Visual Studio found")
 
-    debug('vc.py: find_batch_file() in {}'.format(pdir))
+    debug('find_batch_file() in {}'.format(pdir))
 
     # filter out e.g. "Exp" from the version name
     msvc_ver_numeric = get_msvc_version_numeric(msvc_version)
@@ -423,17 +428,17 @@ def find_batch_file(env,msvc_version,host_arch,target_arch):
         debug("Not found: %s" % batfilename)
         batfilename = None
 
-    installed_sdks=get_installed_sdks()
+    installed_sdks = get_installed_sdks()
     for _sdk in installed_sdks:
         sdk_bat_file = _sdk.get_sdk_vc_script(host_arch,target_arch)
         if not sdk_bat_file:
-            debug("vc.py:find_batch_file() not found:%s"%_sdk)
+            debug("find_batch_file() not found:%s"%_sdk)
         else:
             sdk_bat_file_path = os.path.join(pdir,sdk_bat_file)
             if os.path.exists(sdk_bat_file_path):
-                debug('vc.py:find_batch_file() sdk_bat_file_path:%s'%sdk_bat_file_path)
-                return (batfilename,sdk_bat_file_path)
-    return (batfilename,None)
+                debug('find_batch_file() sdk_bat_file_path:%s'%sdk_bat_file_path)
+                return (batfilename, sdk_bat_file_path)
+    return (batfilename, None)
 
 
 __INSTALLED_VCS_RUN = None
@@ -592,21 +597,57 @@ def reset_installed_vcs():
 #    env2 = Environment(tools='msvs')
 # we can greatly improve the speed of the second and subsequent Environment
 # (or Clone) calls by memoizing the environment variables set by vcvars*.bat.
-script_env_stdout_cache = {}
+#
+# Updated: by 2018, vcvarsall.bat had gotten so expensive (vs2017 era)
+# it was breaking CI builds because the test suite starts scons so many
+# times and the existing memo logic only helped with repeated calls
+# within the same scons run. Windows builds on the CI system were split
+# into chunks to get around single-build time limits.
+# With VS2019 it got even slower and an optional persistent cache file
+# was introduced. The cache now also stores only the parsed vars, 
+# not the entire output of running the batch file - saves a bit
+# of time not parsing every time.
+
+script_env_cache = None
+
 def script_env(script, args=None):
-    cache_key = (script, args)
-    stdout = script_env_stdout_cache.get(cache_key, None)
-    if stdout is None:
+    global script_env_cache
+
+    if script_env_cache is None:
+        script_env_cache = common.read_script_env_cache()
+    cache_key = "{}--{}".format(script, args)
+    cache_data = script_env_cache.get(cache_key, None)
+    if cache_data is None:
         stdout = common.get_output(script, args)
-        script_env_stdout_cache[cache_key] = stdout
 
-    # Stupid batch files do not set return code: we take a look at the
-    # beginning of the output for an error message instead
-    olines = stdout.splitlines()
-    if olines[0].startswith("The specified configuration type is missing"):
-        raise BatchFileExecutionError("\n".join(olines[:2]))
+        # Stupid batch files do not set return code: we take a look at the
+        # beginning of the output for an error message instead
+        olines = stdout.splitlines()
+        if olines[0].startswith("The specified configuration type is missing"):
+            raise BatchFileExecutionError("\n".join(olines[:2]))
+
+        cache_data = common.parse_output(stdout)
+        script_env_cache[cache_key] = cache_data
+        # once we updated cache, give a chance to write out if user wanted
+        common.write_script_env_cache(script_env_cache)
+    else:
+        #TODO: Python 2 cleanup
+        # If we "hit" data from the json file, we have a Py2 problem:
+        # keys & values will be unicode. don't detect, just convert.
+        if sys.version_info[0] == 2:
+            def convert(data):
+                if isinstance(data, basestring):
+                    return str(data)
+                elif isinstance(data, collections.Mapping):
+                    return dict(map(convert, data.iteritems()))
+                elif isinstance(data, collections.Iterable):
+                    return type(data)(map(convert, data))
+                else:
+                    return data
 
-    return common.parse_output(stdout)
+            cache_data = convert(cache_data)
+ 
+    return cache_data
 
 def get_default_version(env):
     debug('get_default_version()')
@@ -635,12 +676,12 @@ def get_default_version(env):
         debug('installed_vcs:%s' % installed_vcs)
         if not installed_vcs:
             #msg = 'No installed VCs'
-            #debug('msv %s\n' % repr(msg))
+            #debug('msv %s' % repr(msg))
             #SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, msg)
             debug('msvc_setup_env: No installed VCs')
             return None
         msvc_version = installed_vcs[0]
-        debug('msvc_setup_env: using default installed MSVC version %s\n' % repr(msvc_version))
+        debug('msvc_setup_env: using default installed MSVC version %s' % repr(msvc_version))
 
     return msvc_version
 
@@ -654,12 +695,12 @@ def msvc_setup_env_once(env):
         msvc_setup_env(env)
         env["MSVC_SETUP_RUN"] = True
 
-def msvc_find_valid_batch_script(env,version):
-    debug('vc.py:msvc_find_valid_batch_script()')
+def msvc_find_valid_batch_script(env, version):
+    debug('msvc_find_valid_batch_script()')
     # Find the host platform, target platform, and if present the requested
     # target platform
     platforms = get_host_target(env)
-    debug("vc.py: msvs_find_valid_batch_script(): host_platform %s, target_platform %s req_target_platform:%s" % platforms)
+    debug(" msvs_find_valid_batch_script(): host_platform %s, target_platform %s req_target_platform:%s" % platforms)
 
     host_platform, target_platform, req_target_platform = platforms
     try_target_archs = [target_platform]
@@ -683,7 +724,7 @@ def msvc_find_valid_batch_script(env,version):
         # Set to current arch.
         env['TARGET_ARCH']=tp
 
-        debug("vc.py:msvc_find_valid_batch_script() trying target_platform:%s"%tp)
+        debug("msvc_find_valid_batch_script() trying target_platform:%s"%tp)
         host_target = (host_platform, tp)
         if not is_host_target_supported(host_target, version):
             warn_msg = "host, target = %s not supported for MSVC version %s" % \
@@ -701,8 +742,8 @@ def msvc_find_valid_batch_script(env,version):
 
         # Try to locate a batch file for this host/target platform combo
         try:
-            (vc_script,sdk_script) = find_batch_file(env,version,host_platform,tp)
-            debug('vc.py:msvc_find_valid_batch_script() vc_script:%s sdk_script:%s'%(vc_script,sdk_script))
+            (vc_script, sdk_script) = find_batch_file(env, version, host_platform, tp)
+            debug('msvc_find_valid_batch_script() vc_script:%s sdk_script:%s'%(vc_script,sdk_script))
         except VisualCException as e:
             msg = str(e)
             debug('Caught exception while looking for batch file (%s)' % msg)
@@ -714,29 +755,29 @@ def msvc_find_valid_batch_script(env,version):
             continue
 
         # Try to use the located batch file for this host/target platform combo
-        debug('vc.py:msvc_find_valid_batch_script() use_script 2 %s, args:%s\n' % (repr(vc_script), arg))
+        debug('msvc_find_valid_batch_script() use_script 2 %s, args:%s' % (repr(vc_script), arg))
         found = None
         if vc_script:
             try:
                 d = script_env(vc_script, args=arg)
                 found = vc_script
             except BatchFileExecutionError as e:
-                debug('vc.py:msvc_find_valid_batch_script() use_script 3: failed running VC script %s: %s: Error:%s'%(repr(vc_script),arg,e))
+                debug('msvc_find_valid_batch_script() use_script 3: failed running VC script %s: %s: Error:%s'%(repr(vc_script),arg,e))
                 vc_script=None
                 continue
         if not vc_script and sdk_script:
-            debug('vc.py:msvc_find_valid_batch_script() use_script 4: trying sdk script: %s'%(sdk_script))
+            debug('msvc_find_valid_batch_script() use_script 4: trying sdk script: %s'%(sdk_script))
             try:
                 d = script_env(sdk_script)
                 found = sdk_script
             except BatchFileExecutionError as e:
-                debug('vc.py:msvc_find_valid_batch_script() use_script 5: failed running SDK script %s: Error:%s'%(repr(sdk_script),e))
+                debug('msvc_find_valid_batch_script() use_script 5: failed running SDK script %s: Error:%s'%(repr(sdk_script),e))
                 continue
         elif not vc_script and not sdk_script:
-            debug('vc.py:msvc_find_valid_batch_script() use_script 6: Neither VC script nor SDK script found')
+            debug('msvc_find_valid_batch_script() use_script 6: Neither VC script nor SDK script found')
             continue
 
-        debug("vc.py:msvc_find_valid_batch_script() Found a working script/target: %s/%s"%(repr(found),arg))
+        debug("msvc_find_valid_batch_script() Found a working script/target: %s/%s"%(repr(found),arg))
         break # We've found a working target_platform, so stop looking
 
     # If we cannot find a viable installed compiler, reset the TARGET_ARCH
@@ -756,7 +797,7 @@ def msvc_setup_env(env):
                    "compilers most likely not set correctly"
         SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
         return None
-    debug('msvc_setup_env: using specified MSVC version %s\n' % repr(version))
+    debug('msvc_setup_env: using specified MSVC version %s' % repr(version))
 
     # XXX: we set-up both MSVS version for backward
     # compatibility with the msvs tool
@@ -767,11 +808,11 @@ def msvc_setup_env(env):
 
     use_script = env.get('MSVC_USE_SCRIPT', True)
     if SCons.Util.is_String(use_script):
-        debug('vc.py:msvc_setup_env() use_script 1 %s\n' % repr(use_script))
+        debug('msvc_setup_env() use_script 1 %s' % repr(use_script))
         d = script_env(use_script)
     elif use_script:
         d = msvc_find_valid_batch_script(env,version)
-        debug('vc.py:msvc_setup_env() use_script 2 %s\n' % d)
+        debug('msvc_setup_env() use_script 2 %s' % d)
         if not d:
             return d
     else:
@@ -782,7 +823,7 @@ def msvc_setup_env(env):
         return None
 
     for k, v in d.items():
-        debug('vc.py:msvc_setup_env() env:%s -> %s'%(k,v))
+        debug('msvc_setup_env() env:%s -> %s'%(k,v))
         env.PrependENVPath(k, v, delete_existing=True)
 
     # final check to issue a warning if the compiler is not present
diff --git a/src/engine/SCons/Tool/MSCommon/vcTests.py b/src/engine/SCons/Tool/MSCommon/vcTests.py
index 25537f3..336bffc 100644
--- a/src/engine/SCons/Tool/MSCommon/vcTests.py
+++ b/src/engine/SCons/Tool/MSCommon/vcTests.py
@@ -22,7 +22,7 @@
 #
 # from typing import Dict, Any
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/vcTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vcTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/MSCommon/vs.py b/src/engine/SCons/Tool/MSCommon/vs.py
index 731f328..972c4f8 100644
--- a/src/engine/SCons/Tool/MSCommon/vs.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vs.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """Module to detect Visual Studio and/or Visual C/C++
 """
@@ -465,14 +465,14 @@ def get_vs_by_version(msvs):
     global InstalledVSMap
     global SupportedVSMap
 
-    debug('vs.py:get_vs_by_version()')
+    debug('get_vs_by_version()')
     if msvs not in SupportedVSMap:
         msg = "Visual Studio version %s is not supported" % repr(msvs)
         raise SCons.Errors.UserError(msg)
     get_installed_visual_studios()
     vs = InstalledVSMap.get(msvs)
     debug('InstalledVSMap:%s'%InstalledVSMap)
-    debug('vs.py:get_vs_by_version: found vs:%s'%vs)
+    debug('get_vs_by_version: found vs:%s'%vs)
     # Some check like this would let us provide a useful error message
     # if they try to set a Visual Studio version that's not installed.
     # However, we also want to be able to run tests (like the unit
diff --git a/src/engine/SCons/Tool/PharLapCommon.py b/src/engine/SCons/Tool/PharLapCommon.py
index 623f2a8..09751d1 100644
--- a/src/engine/SCons/Tool/PharLapCommon.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/PharLapCommon.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/ToolTests.py b/src/engine/SCons/Tool/ToolTests.py
index 25e9b2d..10cb346 100644
--- a/src/engine/SCons/Tool/ToolTests.py
+++ b/src/engine/SCons/Tool/ToolTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ToolTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ToolTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/Tool/__init__.py b/src/engine/SCons/Tool/__init__.py
index 271f214..a75693f 100644
--- a/src/engine/SCons/Tool/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import re
@@ -99,7 +99,7 @@ for suffix in LaTeXSuffixes:
     SourceFileScanner.add_scanner(suffix, LaTeXScanner)
     SourceFileScanner.add_scanner(suffix, PDFLaTeXScanner)
 
-# Tool aliases are needed for those tools whos module names also
+# Tool aliases are needed for those tools whose module names also
 # occur in the python standard library. This causes module shadowing and
 # can break using python library functions under python3
 TOOL_ALIASES = {
diff --git a/src/engine/SCons/Tool/__init__.xml b/src/engine/SCons/Tool/__init__.xml
index 80fd2f6..848ffb1 100644
--- a/src/engine/SCons/Tool/__init__.xml
+++ b/src/engine/SCons/Tool/__init__.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -468,7 +468,7 @@ as C++ files.
 Used to override &cv-link-SHLIBVERSION;/&cv-link-LDMODULEVERSION; when
 generating versioned import library for a shared library/loadable module. If
 undefined, the &cv-link-SHLIBVERSION;/&cv-link-LDMODULEVERSION; is used to
-determine the version of versioned import library. 
+determine the version of versioned import library.
 </para>
 </summary>
 </cvar>
@@ -476,7 +476,10 @@ determine the version of versioned import library.
 <cvar name="LIBEMITTER">
 <summary>
 <para>
-TODO
+Contains the emitter specification for the
+&b-link-StaticLibrary; builder.
+The manpage section "Builder Objects" contains
+general information on specifying emitters.
 </para>
 </summary>
 </cvar>
@@ -494,10 +497,24 @@ format as &cv-link-SHLIBVERSION;.
 </summary>
 </cvar>
 
+<cvar name="LDMODULEEMITTER">
+<summary>
+<para>
+Contains the emitter specification for the
+&b-link-LoadableModule; builder.
+The manpage section "Builder Objects" contains
+general information on specifying emitters.
+</para>
+</summary>
+</cvar>
+
 <cvar name="SHLIBEMITTER">
 <summary>
 <para>
-TODO
+Contains the emitter specification for the
+&b-link-SharedLibrary; builder.
+The manpage section "Builder Objects" contains
+general information on specifying emitters.
 </para>
 </summary>
 </cvar>
@@ -505,7 +522,10 @@ TODO
 <cvar name="PROGEMITTER">
 <summary>
 <para>
-TODO
+Contains the emitter specification for the
+&b-link-Program; builder.
+The manpage section "Builder Objects" contains
+general information on specifying emitters.
 </para>
 </summary>
 </cvar>
@@ -514,7 +534,7 @@ TODO
 <summary>
 <para>
 When this construction variable is defined, a versioned shared library
-is created by &b-link-SharedLibrary; builder. This activates the
+is created by the &b-link-SharedLibrary; builder. This activates the
 &cv-link-_SHLIBVERSIONFLAGS; and thus modifies the &cv-link-SHLINKCOM; as
 required, adds the version number to the library name, and creates the symlinks
 that are needed.  &cv-link-SHLIBVERSION; versions should exist as alpha-numeric,
diff --git a/src/engine/SCons/Tool/aixc++.py b/src/engine/SCons/Tool/aixc++.py
index bafaea4..4a78eda 100644
--- a/src/engine/SCons/Tool/aixc++.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/aixc++.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 #forward proxy to the preffered cxx version
 from SCons.Tool.aixcxx import *
diff --git a/src/engine/SCons/Tool/aixc++.xml b/src/engine/SCons/Tool/aixc++.xml
index 0d50ae9..549675c 100644
--- a/src/engine/SCons/Tool/aixc++.xml
+++ b/src/engine/SCons/Tool/aixc++.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/aixcc.py b/src/engine/SCons/Tool/aixcc.py
index 349a40a..e7bc1ca 100644
--- a/src/engine/SCons/Tool/aixcc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/aixcc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/aixcc.xml b/src/engine/SCons/Tool/aixcc.xml
index aa0e604..254ca68 100644
--- a/src/engine/SCons/Tool/aixcc.xml
+++ b/src/engine/SCons/Tool/aixcc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/aixcxx.py b/src/engine/SCons/Tool/aixcxx.py
index 0830e33..f4ee5fe 100644
--- a/src/engine/SCons/Tool/aixcxx.py
+++ b/src/engine/SCons/Tool/aixcxx.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixcxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/aixcxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/aixf77.py b/src/engine/SCons/Tool/aixf77.py
index d2c619a..908e8ad 100644
--- a/src/engine/SCons/Tool/aixf77.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/aixf77.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/aixf77.xml b/src/engine/SCons/Tool/aixf77.xml
index ee4d232..55d82d5 100644
--- a/src/engine/SCons/Tool/aixf77.xml
+++ b/src/engine/SCons/Tool/aixf77.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/aixlink.py b/src/engine/SCons/Tool/aixlink.py
index ea2949f..67d65e8 100644
--- a/src/engine/SCons/Tool/aixlink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/aixlink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/aixlink.xml b/src/engine/SCons/Tool/aixlink.xml
index 0f7fc62..95d93ae 100644
--- a/src/engine/SCons/Tool/aixlink.xml
+++ b/src/engine/SCons/Tool/aixlink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/applelink.py b/src/engine/SCons/Tool/applelink.py
index 011b29d..f432d61 100644
--- a/src/engine/SCons/Tool/applelink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/applelink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/applelink.xml b/src/engine/SCons/Tool/applelink.xml
index c7209fa..f0e467a 100644
--- a/src/engine/SCons/Tool/applelink.xml
+++ b/src/engine/SCons/Tool/applelink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ar.py b/src/engine/SCons/Tool/ar.py
index 459fb55..3d8cc8a 100644
--- a/src/engine/SCons/Tool/ar.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ar.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/ar.xml b/src/engine/SCons/Tool/ar.xml
index 573c80b..02549a6 100644
--- a/src/engine/SCons/Tool/ar.xml
+++ b/src/engine/SCons/Tool/ar.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/as.py b/src/engine/SCons/Tool/as.py
index 02139c5..3986a44 100644
--- a/src/engine/SCons/Tool/as.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/as.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/as.xml b/src/engine/SCons/Tool/as.xml
index c2d1814..49894c4 100644
--- a/src/engine/SCons/Tool/as.xml
+++ b/src/engine/SCons/Tool/as.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/bcc32.py b/src/engine/SCons/Tool/bcc32.py
index e8ffbbf..7e0b47f 100644
--- a/src/engine/SCons/Tool/bcc32.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/bcc32.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/bcc32.xml b/src/engine/SCons/Tool/bcc32.xml
index b2d8394..25ea147 100644
--- a/src/engine/SCons/Tool/bcc32.xml
+++ b/src/engine/SCons/Tool/bcc32.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/c++.py b/src/engine/SCons/Tool/c++.py
index 8819f82..00aee5d 100644
--- a/src/engine/SCons/Tool/c++.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/c++.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 #forward proxy to the preffered cxx version
diff --git a/src/engine/SCons/Tool/c++.xml b/src/engine/SCons/Tool/c++.xml
index c10438a..a550f6a 100644
--- a/src/engine/SCons/Tool/c++.xml
+++ b/src/engine/SCons/Tool/c++.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/cc.py b/src/engine/SCons/Tool/cc.py
index 698d725..ffcb6e8 100644
--- a/src/engine/SCons/Tool/cc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/cc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Tool
 import SCons.Defaults
diff --git a/src/engine/SCons/Tool/cc.xml b/src/engine/SCons/Tool/cc.xml
index 735f700..90adbcf 100644
--- a/src/engine/SCons/Tool/cc.xml
+++ b/src/engine/SCons/Tool/cc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -26,7 +26,7 @@ See its __doc__ string for a discussion of the format.
 <tool name="cc">
 <summary>
 <para>
-Sets construction variables for generic POSIX C copmilers.
+Sets construction variables for generic POSIX C compilers.
 </para>
 </summary>
 <sets>
diff --git a/src/engine/SCons/Tool/clang.py b/src/engine/SCons/Tool/clang.py
index f48afbf..35347b4 100644
--- a/src/engine/SCons/Tool/clang.py
+++ b/src/engine/SCons/Tool/clang.py
@@ -33,7 +33,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-# __revision__ = "src/engine/SCons/Tool/clang.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+# __revision__ = "src/engine/SCons/Tool/clang.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 # Based on SCons/Tool/gcc.py by Paweł Tomulik 2014 as a separate tool.
 # Brought into the SCons mainline by Russel Winder 2017.
diff --git a/src/engine/SCons/Tool/clang.xml b/src/engine/SCons/Tool/clang.xml
index a546946..ece6aa1 100644
--- a/src/engine/SCons/Tool/clang.xml
+++ b/src/engine/SCons/Tool/clang.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/clangxx.py b/src/engine/SCons/Tool/clangxx.py
index d88874e..9292c21 100644
--- a/src/engine/SCons/Tool/clangxx.py
+++ b/src/engine/SCons/Tool/clangxx.py
@@ -33,7 +33,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-# __revision__ = "src/engine/SCons/Tool/clangxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+# __revision__ = "src/engine/SCons/Tool/clangxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 # Based on SCons/Tool/g++.py by Paweł Tomulik 2014 as a separate tool.
 # Brought into the SCons mainline by Russel Winder 2017.
diff --git a/src/engine/SCons/Tool/clangxx.xml b/src/engine/SCons/Tool/clangxx.xml
index 7372389..5359484 100644
--- a/src/engine/SCons/Tool/clangxx.xml
+++ b/src/engine/SCons/Tool/clangxx.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/cvf.py b/src/engine/SCons/Tool/cvf.py
index aa24d69..60d5a3d 100644
--- a/src/engine/SCons/Tool/cvf.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/cvf.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import fortran
 
diff --git a/src/engine/SCons/Tool/cvf.xml b/src/engine/SCons/Tool/cvf.xml
index b56c23c..2dad3d2 100644
--- a/src/engine/SCons/Tool/cvf.xml
+++ b/src/engine/SCons/Tool/cvf.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/cxx.py b/src/engine/SCons/Tool/cxx.py
index 2ac278e..aced177 100644
--- a/src/engine/SCons/Tool/cxx.py
+++ b/src/engine/SCons/Tool/cxx.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/cxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/cxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/cyglink.xml b/src/engine/SCons/Tool/cyglink.xml
index a0aefac..7b9676f 100644
--- a/src/engine/SCons/Tool/cyglink.xml
+++ b/src/engine/SCons/Tool/cyglink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/default.py b/src/engine/SCons/Tool/default.py
index 866b823..355538f 100644
--- a/src/engine/SCons/Tool/default.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/default.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Tool
 
diff --git a/src/engine/SCons/Tool/default.xml b/src/engine/SCons/Tool/default.xml
index 8e1ed21..0d8f460 100644
--- a/src/engine/SCons/Tool/default.xml
+++ b/src/engine/SCons/Tool/default.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -26,10 +26,91 @@ See its __doc__ string for a discussion of the format.
 <tool name="default">
 <summary>
 <para>
-Sets variables by calling a default list of Tool modules
-for the platform on which SCons is running.
+Sets &consvars; for a default list of Tool modules.
+Use <emphasis role="bold">default</emphasis>
+in the tools list to retain the original defaults,
+since the <parameter>tools</parameter> parameter
+is treated as a literal statement of the tools
+to be made available in that &consenv;, not an addition.
 </para>
+
+<para>
+The list of tools selected by default is not static,
+but is dependent both on
+the platform and on the software installed on the platform.
+Some tools will not initialize if an underlying command is
+not found, and some tools are selected from a list of choices
+on a first-found basis. The finished tool list can be
+examined by inspecting the <envar>TOOLS</envar> &consvar;
+in the &consenv;.
+</para>
+
+<para>
+On all platforms, all tools from the following list
+are selected whose respective conditions are met:
+filesystem, wix, lex, yacc, rpcgen, swig,
+jar, javac, javah, rmic, dvipdf, dvips, gs,
+tex, latex, pdflatex, pdftex, tar, zip, textfile.
+</para>
+
+<para>
+On Linux systems, the default tools list selects
+(first-found): a C compiler from
+gcc, intelc, icc, cc;
+a C++ compiler from
+g++, intelc, icc, cxx;
+an assembler from
+gas, nasm, masm;
+a linker from
+gnulink, ilink;
+a Fortran compiler from
+gfortran, g77, ifort, ifl, f95, f90, f77;
+and a static archiver 'ar'.
+It also selects all found from the list
+m4, rpm.
+</para>
+
+<para>
+On Windows systems, the default tools list selects
+(first-found): a C compiler from
+msvc, mingw, gcc, intelc, icl, icc, cc, bcc32;
+a C++ compiler from
+msvc, intelc, icc, g++, cxx, bcc32;
+an assembler from
+masm, nasm, gas, 386asm;
+a linker from
+mslink, gnulink, ilink, linkloc, ilink32;
+a Fortran compiler from
+gfortran, g77, ifl, cvf, f95, f90, fortran;
+and a static archiver from
+mslib, ar, tlib;
+It also selects all found from the list
+msvs, midl.
+</para>
+
+<para>
+On MacOS systems, the default tools list selects
+(first-found): a C compiler from
+gcc, cc;
+a C++ compiler from
+g++, cxx;
+an assembler 'as';
+a linker from
+applelink, gnulink;
+a Fortran compiler from
+gfortran, f95, f90, g77;
+and a static archiver ar.
+It also selects all found from the list
+m4, rpm.
+</para>
+
+<para>
+Default lists for other platforms can be found by
+examining the &scons;
+source code (see
+<filename>SCons/Tool/__init__.py</filename>).
+</para>
+
 </summary>
 </tool>
-
 </sconsdoc>
diff --git a/src/engine/SCons/Tool/dmd.py b/src/engine/SCons/Tool/dmd.py
index befcd22..74c8673 100644
--- a/src/engine/SCons/Tool/dmd.py
+++ b/src/engine/SCons/Tool/dmd.py
@@ -53,7 +53,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dmd.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/dmd.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import subprocess
diff --git a/src/engine/SCons/Tool/dmd.xml b/src/engine/SCons/Tool/dmd.xml
index 5149503..f7cc69d 100644
--- a/src/engine/SCons/Tool/dmd.xml
+++ b/src/engine/SCons/Tool/dmd.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -73,299 +73,4 @@ Sets construction variables for D language compiler DMD.
 </uses>
 </tool>
 
-<cvar name="DC">
-<summary>
-<para>
-The D compiler to use.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DCOM">
-<summary>
-<para>
-  The command line used to compile a D file to an object file.
-  Any options specified in the &cv-link-DFLAGS; construction variable
-  is included on this command line.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DDEBUG">
-<summary>
-<para>
-  List of debug tags to enable when compiling.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DFLAGS">
-<summary>
-<para>
-  General options that are passed to the D compiler.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLIB">
-<summary>
-<para>
-  Name of the lib tool to use for D codes.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLIBCOM">
-<summary>
-<para>
-  The command line to use when creating libraries.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINK">
-<summary>
-<para>
-  Name of the linker to use for linking systems including D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINKCOM">
-<summary>
-<para>
-  The command line to use when linking systems including D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINKFLAGS">
-<summary>
-<para>
-List of linker flags.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DPATH">
-<summary>
-<para>
-  List of paths to search for import modules.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DVERSIONS">
-<summary>
-<para>
-  List of version tags to enable when compiling.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDC">
-<summary>
-<para>
-  The name of the compiler to use when compiling D source
-  destined to be in a shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDCOM">
-<summary>
-<para>
-  The command line to use when compiling code to be part of shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINK">
-<summary>
-<para>
-  The linker to use when creating shared objects for code bases
-  include D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINKCOM">
-<summary>
-<para>
-  The command line to use when generating shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINKFLAGS">
-<summary>
-<para>
-  The list of flags to use when generating a shared object.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DVERSUFFIX">
-  <summary>
-    <para>
-      DVERSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DVERPREFIX">
-  <summary>
-    <para>
-      DVERPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLINKFLAGSUFFIX">
-  <summary>
-    <para>
-      DLINKFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLINKFLAGPREFIX">
-  <summary>
-    <para>
-      DLINKFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBLINKSUFFIX">
-  <summary>
-    <para>
-      DLIBLINKSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBLINKPREFIX">
-  <summary>
-    <para>
-      DLIBLINKPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBFLAGSUFFIX">
-  <summary>
-    <para>
-      DLIBFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBFLAGPREFIX">
-  <summary>
-    <para>
-      DLIBFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBDIRSUFFIX">
-  <summary>
-    <para>
-      DLIBLINKSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBDIRPREFIX">
-  <summary>
-    <para>
-      DLIBLINKPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DINCSUFFIX">
-  <summary>
-    <para>
-      DLIBFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-
-<cvar name="DINCPREFIX">
-  <summary>
-    <para>
-      DINCPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFLAGSUFFIX">
-  <summary>
-    <para>
-      DFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFLAGPREFIX">
-  <summary>
-    <para>
-      DFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFILESUFFIX">
-  <summary>
-    <para>
-      DFILESUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DDEBUGPREFIX">
-  <summary>
-    <para>
-      DDEBUGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DDEBUGSUFFIX">
-  <summary>
-    <para>
-      DDEBUGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<builder name="ProgramAllAtOnce">
-  <summary>
-    <para>
-      Builds an executable from D sources without first creating individual
-      objects for each file.
-    </para>
-    <para>
-      D sources can be compiled file-by-file as C and C++ source are, and
-      D is integrated into the &scons; Object and Program builders for
-      this model of build. D codes can though do whole source
-      meta-programming (some of the testing frameworks do this). For this
-      it is imperative that all sources are compiled and linked in a single call of
-      the D compiler. This builder serves that purpose.
-    </para>
-    <example_commands>
-      env.ProgramAllAtOnce('executable', ['mod_a.d, mod_b.d', 'mod_c.d'])
-    </example_commands>
-    <para>
-      This command will compile the modules mod_a, mod_b, and mod_c in a
-      single compilation process without first creating object files for
-      the modules. Some of the D compilers will create executable.o others
-      will not.
-    </para>
-  </summary>
-</builder>
-
 </sconsdoc>
diff --git a/src/engine/SCons/Tool/docbook/__init__.xml b/src/engine/SCons/Tool/docbook/__init__.xml
index 3110649..cbac169 100644
--- a/src/engine/SCons/Tool/docbook/__init__.xml
+++ b/src/engine/SCons/Tool/docbook/__init__.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/dvi.py b/src/engine/SCons/Tool/dvi.py
index 5cd85ed..1a7f7af 100644
--- a/src/engine/SCons/Tool/dvi.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/dvi.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Builder
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/dvi.xml b/src/engine/SCons/Tool/dvi.xml
index 82ff01b..b5bfac9 100644
--- a/src/engine/SCons/Tool/dvi.xml
+++ b/src/engine/SCons/Tool/dvi.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/dvipdf.py b/src/engine/SCons/Tool/dvipdf.py
index 32f57e6..6012e5b 100644
--- a/src/engine/SCons/Tool/dvipdf.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/dvipdf.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/src/engine/SCons/Tool/dvipdf.xml b/src/engine/SCons/Tool/dvipdf.xml
index 683ca72..f43af93 100644
--- a/src/engine/SCons/Tool/dvipdf.xml
+++ b/src/engine/SCons/Tool/dvipdf.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/dvips.py b/src/engine/SCons/Tool/dvips.py
index 988ecd3..9fce42c 100644
--- a/src/engine/SCons/Tool/dvips.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/dvips.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Builder
diff --git a/src/engine/SCons/Tool/dvips.xml b/src/engine/SCons/Tool/dvips.xml
index 9838db1..2dc91ba 100644
--- a/src/engine/SCons/Tool/dvips.xml
+++ b/src/engine/SCons/Tool/dvips.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/f03.py b/src/engine/SCons/Tool/f03.py
index 541ec88..77a37b9 100644
--- a/src/engine/SCons/Tool/f03.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/f03.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/f03.xml b/src/engine/SCons/Tool/f03.xml
index af9da30..aed1584 100644
--- a/src/engine/SCons/Tool/f03.xml
+++ b/src/engine/SCons/Tool/f03.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/f08.py b/src/engine/SCons/Tool/f08.py
index 5dc49da..e7318b9 100644
--- a/src/engine/SCons/Tool/f08.py
+++ b/src/engine/SCons/Tool/f08.py
@@ -33,7 +33,7 @@ from __future__ import absolute_import
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f08.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/f08.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/f08.xml b/src/engine/SCons/Tool/f08.xml
index 4c07890..00b8c11 100644
--- a/src/engine/SCons/Tool/f08.xml
+++ b/src/engine/SCons/Tool/f08.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/f77.py b/src/engine/SCons/Tool/f77.py
index 6d60edf..0777822 100644
--- a/src/engine/SCons/Tool/f77.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/f77.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Scanner.Fortran
diff --git a/src/engine/SCons/Tool/f77.xml b/src/engine/SCons/Tool/f77.xml
index 7ce1159..4b76d02 100644
--- a/src/engine/SCons/Tool/f77.xml
+++ b/src/engine/SCons/Tool/f77.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/f90.py b/src/engine/SCons/Tool/f90.py
index e0b5fae..6a370bd 100644
--- a/src/engine/SCons/Tool/f90.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/f90.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Scanner.Fortran
diff --git a/src/engine/SCons/Tool/f90.xml b/src/engine/SCons/Tool/f90.xml
index f8c1854..0de4b7d 100644
--- a/src/engine/SCons/Tool/f90.xml
+++ b/src/engine/SCons/Tool/f90.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/f95.py b/src/engine/SCons/Tool/f95.py
index 9a1afdf..fca7d62 100644
--- a/src/engine/SCons/Tool/f95.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/f95.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/f95.xml b/src/engine/SCons/Tool/f95.xml
index a575ad0..186da78 100644
--- a/src/engine/SCons/Tool/f95.xml
+++ b/src/engine/SCons/Tool/f95.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/filesystem.py b/src/engine/SCons/Tool/filesystem.py
index a625714..ea16abf 100644
--- a/src/engine/SCons/Tool/filesystem.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/filesystem.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons
 from SCons.Tool.install import copyFunc
diff --git a/src/engine/SCons/Tool/fortran.py b/src/engine/SCons/Tool/fortran.py
index 1b09880..7b332c9 100644
--- a/src/engine/SCons/Tool/fortran.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/fortran.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import re
 
diff --git a/src/engine/SCons/Tool/fortran.xml b/src/engine/SCons/Tool/fortran.xml
index 0fde8f1..1390bc5 100644
--- a/src/engine/SCons/Tool/fortran.xml
+++ b/src/engine/SCons/Tool/fortran.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/g++.py b/src/engine/SCons/Tool/g++.py
index 8cf881f..eace13c 100644
--- a/src/engine/SCons/Tool/g++.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/g++.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 #forward proxy to the preffered cxx version
diff --git a/src/engine/SCons/Tool/g++.xml b/src/engine/SCons/Tool/g++.xml
index f997540..787ee86 100644
--- a/src/engine/SCons/Tool/g++.xml
+++ b/src/engine/SCons/Tool/g++.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/g77.py b/src/engine/SCons/Tool/g77.py
index fc0bcba..f3f935d 100644
--- a/src/engine/SCons/Tool/g77.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/g77.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 from SCons.Tool.FortranCommon import add_all_to_env, add_f77_to_env
diff --git a/src/engine/SCons/Tool/g77.xml b/src/engine/SCons/Tool/g77.xml
index 519dfaf..f639ed2 100644
--- a/src/engine/SCons/Tool/g77.xml
+++ b/src/engine/SCons/Tool/g77.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gas.py b/src/engine/SCons/Tool/gas.py
index c104e34..9b60201 100644
--- a/src/engine/SCons/Tool/gas.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gas.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 try:
     as_module = __import__('as', globals(), locals(), [])
diff --git a/src/engine/SCons/Tool/gas.xml b/src/engine/SCons/Tool/gas.xml
index 9cfe0de..e017e1c 100644
--- a/src/engine/SCons/Tool/gas.xml
+++ b/src/engine/SCons/Tool/gas.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gcc.py b/src/engine/SCons/Tool/gcc.py
index 2532427..65b9f57 100644
--- a/src/engine/SCons/Tool/gcc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gcc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import cc
 import os
diff --git a/src/engine/SCons/Tool/gcc.xml b/src/engine/SCons/Tool/gcc.xml
index 8c29e9d..882bfdc 100644
--- a/src/engine/SCons/Tool/gcc.xml
+++ b/src/engine/SCons/Tool/gcc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gdc.py b/src/engine/SCons/Tool/gdc.py
index 46a910c..4c392e8 100644
--- a/src/engine/SCons/Tool/gdc.py
+++ b/src/engine/SCons/Tool/gdc.py
@@ -48,7 +48,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gdc.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gdc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/src/engine/SCons/Tool/gdc.xml b/src/engine/SCons/Tool/gdc.xml
index ea31215..1c18fdb 100644
--- a/src/engine/SCons/Tool/gdc.xml
+++ b/src/engine/SCons/Tool/gdc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -73,299 +73,4 @@ Sets construction variables for the D language compiler GDC.
 </uses>
 </tool>
 
-<cvar name="DC">
-<summary>
-<para>
-The D compiler to use.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DCOM">
-<summary>
-<para>
-  The command line used to compile a D file to an object file.
-  Any options specified in the &cv-link-DFLAGS; construction variable
-  is included on this command line.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DDEBUG">
-<summary>
-<para>
-  List of debug tags to enable when compiling.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DFLAGS">
-<summary>
-<para>
-  General options that are passed to the D compiler.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLIB">
-<summary>
-<para>
-  Name of the lib tool to use for D codes.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLIBCOM">
-<summary>
-<para>
-  The command line to use when creating libraries.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINK">
-<summary>
-<para>
-  Name of the linker to use for linking systems including D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINKCOM">
-<summary>
-<para>
-  The command line to use when linking systems including D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINKFLAGS">
-<summary>
-<para>
-List of linker flags.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DPATH">
-<summary>
-<para>
-  List of paths to search for import modules.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DVERSIONS">
-<summary>
-<para>
-  List of version tags to enable when compiling.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDC">
-<summary>
-<para>
-  The name of the compiler to use when compiling D source
-  destined to be in a shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDCOM">
-<summary>
-<para>
-  The command line to use when compiling code to be part of shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINK">
-<summary>
-<para>
-  The linker to use when creating shared objects for code bases
-  include D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINKCOM">
-<summary>
-<para>
-  The command line to use when generating shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINKFLAGS">
-<summary>
-<para>
-  The list of flags to use when generating a shared object.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DVERSUFFIX">
-  <summary>
-    <para>
-      DVERSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DVERPREFIX">
-  <summary>
-    <para>
-      DVERPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLINKFLAGSUFFIX">
-  <summary>
-    <para>
-      DLINKFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLINKFLAGPREFIX">
-  <summary>
-    <para>
-      DLINKFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBLINKSUFFIX">
-  <summary>
-    <para>
-      DLIBLINKSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBLINKPREFIX">
-  <summary>
-    <para>
-      DLIBLINKPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBFLAGSUFFIX">
-  <summary>
-    <para>
-      DLIBFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBFLAGPREFIX">
-  <summary>
-    <para>
-      DLIBFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBDIRSUFFIX">
-  <summary>
-    <para>
-      DLIBLINKSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBDIRPREFIX">
-  <summary>
-    <para>
-      DLIBLINKPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DINCSUFFIX">
-  <summary>
-    <para>
-      DLIBFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-
-<cvar name="DINCPREFIX">
-  <summary>
-    <para>
-      DINCPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFLAGSUFFIX">
-  <summary>
-    <para>
-      DFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFLAGPREFIX">
-  <summary>
-    <para>
-      DFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFILESUFFIX">
-  <summary>
-    <para>
-      DFILESUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DDEBUGPREFIX">
-  <summary>
-    <para>
-      DDEBUGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DDEBUGSUFFIX">
-  <summary>
-    <para>
-      DDEBUGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<builder name="ProgramAllAtOnce">
-  <summary>
-    <para>
-      Builds an executable from D sources without first creating individual
-      objects for each file.
-    </para>
-    <para>
-      D sources can be compiled file-by-file as C and C++ source are, and
-      D is integrated into the &scons; Object and Program builders for
-      this model of build. D codes can though do whole source
-      meta-programming (some of the testing frameworks do this). For this
-      it is imperative that all sources are compiled and linked in a single call of
-      the D compiler. This builder serves that purpose.
-    </para>
-    <example_commands>
-      env.ProgramAllAtOnce('executable', ['mod_a.d, mod_b.d', 'mod_c.d'])
-    </example_commands>
-    <para>
-      This command will compile the modules mod_a, mod_b, and mod_c in a
-      single compilation process without first creating object files for
-      the modules. Some of the D compilers will create executable.o others
-      will not.
-    </para>
-  </summary>
-</builder>
-
 </sconsdoc>
diff --git a/src/engine/SCons/Tool/gettext.xml b/src/engine/SCons/Tool/gettext.xml
index fc3af69..c79fe4d 100644
--- a/src/engine/SCons/Tool/gettext.xml
+++ b/src/engine/SCons/Tool/gettext.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gettext_tool.py b/src/engine/SCons/Tool/gettext_tool.py
index 5fc0158..5891e40 100644
--- a/src/engine/SCons/Tool/gettext_tool.py
+++ b/src/engine/SCons/Tool/gettext_tool.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_tool.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gettext_tool.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 #############################################################################
 def generate(env,**kw):
diff --git a/src/engine/SCons/Tool/gfortran.py b/src/engine/SCons/Tool/gfortran.py
index 8d02daa..986ebc6 100644
--- a/src/engine/SCons/Tool/gfortran.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gfortran.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/gfortran.xml b/src/engine/SCons/Tool/gfortran.xml
index 4e78495..20a6bb8 100644
--- a/src/engine/SCons/Tool/gfortran.xml
+++ b/src/engine/SCons/Tool/gfortran.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gnulink.py b/src/engine/SCons/Tool/gnulink.py
index 53f5081..0715ffc 100644
--- a/src/engine/SCons/Tool/gnulink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gnulink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/gnulink.xml b/src/engine/SCons/Tool/gnulink.xml
index 5ef80eb..669ca34 100644
--- a/src/engine/SCons/Tool/gnulink.xml
+++ b/src/engine/SCons/Tool/gnulink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gs.py b/src/engine/SCons/Tool/gs.py
index 371b810..3e9543f 100644
--- a/src/engine/SCons/Tool/gs.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gs.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Builder
diff --git a/src/engine/SCons/Tool/gs.xml b/src/engine/SCons/Tool/gs.xml
index 185f1b4..ffaa16c 100644
--- a/src/engine/SCons/Tool/gs.xml
+++ b/src/engine/SCons/Tool/gs.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/gxx.py b/src/engine/SCons/Tool/gxx.py
index d956c9f..2eb678d 100644
--- a/src/engine/SCons/Tool/gxx.py
+++ b/src/engine/SCons/Tool/gxx.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/gxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import re
diff --git a/src/engine/SCons/Tool/hpc++.py b/src/engine/SCons/Tool/hpc++.py
index 4ec2fe3..ee94e22 100644
--- a/src/engine/SCons/Tool/hpc++.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/hpc++.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 #forward proxy to the preffered cxx version
diff --git a/src/engine/SCons/Tool/hpc++.xml b/src/engine/SCons/Tool/hpc++.xml
index 8bb4a65..7bd251b 100644
--- a/src/engine/SCons/Tool/hpc++.xml
+++ b/src/engine/SCons/Tool/hpc++.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/hpcc.py b/src/engine/SCons/Tool/hpcc.py
index 6a564b9..f118cf3 100644
--- a/src/engine/SCons/Tool/hpcc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/hpcc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/hpcc.xml b/src/engine/SCons/Tool/hpcc.xml
index f8bece8..9e58484 100644
--- a/src/engine/SCons/Tool/hpcc.xml
+++ b/src/engine/SCons/Tool/hpcc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/hpcxx.py b/src/engine/SCons/Tool/hpcxx.py
index 8ee888f..e4dcb97 100644
--- a/src/engine/SCons/Tool/hpcxx.py
+++ b/src/engine/SCons/Tool/hpcxx.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hpcxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/hpcxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/hplink.py b/src/engine/SCons/Tool/hplink.py
index 1afa95e..9f90071 100644
--- a/src/engine/SCons/Tool/hplink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/hplink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/hplink.xml b/src/engine/SCons/Tool/hplink.xml
index f2b923b..bfdc3bb 100644
--- a/src/engine/SCons/Tool/hplink.xml
+++ b/src/engine/SCons/Tool/hplink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/icc.py b/src/engine/SCons/Tool/icc.py
index 8110a60..877a212 100644
--- a/src/engine/SCons/Tool/icc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/icc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import cc
 
diff --git a/src/engine/SCons/Tool/icc.xml b/src/engine/SCons/Tool/icc.xml
index 8492fce..6f88ca8 100644
--- a/src/engine/SCons/Tool/icc.xml
+++ b/src/engine/SCons/Tool/icc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/icl.py b/src/engine/SCons/Tool/icl.py
index 29d5862..be67bdc 100644
--- a/src/engine/SCons/Tool/icl.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/icl.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Tool.intelc
 
diff --git a/src/engine/SCons/Tool/icl.xml b/src/engine/SCons/Tool/icl.xml
index 31e0bcc..c6d4c61 100644
--- a/src/engine/SCons/Tool/icl.xml
+++ b/src/engine/SCons/Tool/icl.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ifl.py b/src/engine/SCons/Tool/ifl.py
index 0eb7cda..2139b9f 100644
--- a/src/engine/SCons/Tool/ifl.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ifl.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 from SCons.Scanner.Fortran import FortranScan
diff --git a/src/engine/SCons/Tool/ifl.xml b/src/engine/SCons/Tool/ifl.xml
index f78c9fd..260a74d 100644
--- a/src/engine/SCons/Tool/ifl.xml
+++ b/src/engine/SCons/Tool/ifl.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ifort.py b/src/engine/SCons/Tool/ifort.py
index 730e778..a248b3e 100644
--- a/src/engine/SCons/Tool/ifort.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ifort.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 from SCons.Scanner.Fortran import FortranScan
diff --git a/src/engine/SCons/Tool/ifort.xml b/src/engine/SCons/Tool/ifort.xml
index 47a55e3..bb20c2a 100644
--- a/src/engine/SCons/Tool/ifort.xml
+++ b/src/engine/SCons/Tool/ifort.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ilink.py b/src/engine/SCons/Tool/ilink.py
index 7c69e72..289235c 100644
--- a/src/engine/SCons/Tool/ilink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ilink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/ilink.xml b/src/engine/SCons/Tool/ilink.xml
index 731bdfb..213988c 100644
--- a/src/engine/SCons/Tool/ilink.xml
+++ b/src/engine/SCons/Tool/ilink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ilink32.py b/src/engine/SCons/Tool/ilink32.py
index a1e12a6..33df790 100644
--- a/src/engine/SCons/Tool/ilink32.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ilink32.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Tool
 import SCons.Tool.bcc32
diff --git a/src/engine/SCons/Tool/ilink32.xml b/src/engine/SCons/Tool/ilink32.xml
index 3f273a8..cfcdec3 100644
--- a/src/engine/SCons/Tool/ilink32.xml
+++ b/src/engine/SCons/Tool/ilink32.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/install.py b/src/engine/SCons/Tool/install.py
index c0a8917..f998baa 100644
--- a/src/engine/SCons/Tool/install.py
+++ b/src/engine/SCons/Tool/install.py
@@ -31,7 +31,7 @@ selection method.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/install.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/install.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import re
diff --git a/src/engine/SCons/Tool/install.xml b/src/engine/SCons/Tool/install.xml
index da2d4a0..e126c75 100644
--- a/src/engine/SCons/Tool/install.xml
+++ b/src/engine/SCons/Tool/install.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -52,6 +52,22 @@ a builder.
 <example_commands>
 env.Install('/usr/local/bin', source = ['foo', 'bar'])
 </example_commands>
+
+<para>
+If the <option>--install-sandbox</option> command line
+option is given, the target directory will be prefixed
+by the directory path specified.
+This is useful to test installs without installing to
+a "live" location in the system.
+</para>
+
+<para>
+See also &FindInstalledFiles;.
+For more thoughts on installation, see the User Guide
+(particularly the section on Command-Line Targets
+and the chapters on Installing Files and on Alias Targets).
+</para>
+
 </summary>
 </builder>
 
diff --git a/src/engine/SCons/Tool/intelc.py b/src/engine/SCons/Tool/intelc.py
index fdd9730..c45c71a 100644
--- a/src/engine/SCons/Tool/intelc.py
+++ b/src/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, print_function
 
-__revision__ = "src/engine/SCons/Tool/intelc.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/intelc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import math, sys, os.path, glob, string, re
 
@@ -387,7 +387,7 @@ def get_intel_compiler_top(version, abi):
 
 
 def generate(env, version=None, abi=None, topdir=None, verbose=0):
-    """Add Builders and construction variables for Intel C/C++ compiler
+    r"""Add Builders and construction variables for Intel C/C++ compiler
     to an Environment.
     args:
       version: (string) compiler version to use, like "80"
@@ -551,7 +551,7 @@ def generate(env, version=None, abi=None, topdir=None, verbose=0):
         # Look for license file dir
         # in system environment, registry, and default location.
         envlicdir = os.environ.get("INTEL_LICENSE_FILE", '')
-        K = ('SOFTWARE\Intel\Licenses')
+        K = r'SOFTWARE\Intel\Licenses'
         try:
             k = SCons.Util.RegOpenKeyEx(SCons.Util.HKEY_LOCAL_MACHINE, K)
             reglicdir = SCons.Util.RegQueryValueEx(k, "w_cpp")[0]
diff --git a/src/engine/SCons/Tool/intelc.xml b/src/engine/SCons/Tool/intelc.xml
index af77186..96a21ca 100644
--- a/src/engine/SCons/Tool/intelc.xml
+++ b/src/engine/SCons/Tool/intelc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ipkg.py b/src/engine/SCons/Tool/ipkg.py
index 664c3a6..e1fad35 100644
--- a/src/engine/SCons/Tool/ipkg.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ipkg.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 
diff --git a/src/engine/SCons/Tool/jar.py b/src/engine/SCons/Tool/jar.py
index 98be08f..f2a328b 100644
--- a/src/engine/SCons/Tool/jar.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/jar.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 import os
 
 import SCons.Subst
diff --git a/src/engine/SCons/Tool/jar.xml b/src/engine/SCons/Tool/jar.xml
index 73f6bcb..6961841 100644
--- a/src/engine/SCons/Tool/jar.xml
+++ b/src/engine/SCons/Tool/jar.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/javac.py b/src/engine/SCons/Tool/javac.py
index 387afdb..aeb52ce 100644
--- a/src/engine/SCons/Tool/javac.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/javac.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/javac.xml b/src/engine/SCons/Tool/javac.xml
index dc72f75..f504db3 100644
--- a/src/engine/SCons/Tool/javac.xml
+++ b/src/engine/SCons/Tool/javac.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/javah.py b/src/engine/SCons/Tool/javah.py
index 251778d..b41c742 100644
--- a/src/engine/SCons/Tool/javah.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/javah.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/javah.xml b/src/engine/SCons/Tool/javah.xml
index f72a6cd..16f5e0a 100644
--- a/src/engine/SCons/Tool/javah.xml
+++ b/src/engine/SCons/Tool/javah.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/latex.py b/src/engine/SCons/Tool/latex.py
index 3f1af08..6cfd93a 100644
--- a/src/engine/SCons/Tool/latex.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/latex.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/src/engine/SCons/Tool/latex.xml b/src/engine/SCons/Tool/latex.xml
index b4eb45a..352357a 100644
--- a/src/engine/SCons/Tool/latex.xml
+++ b/src/engine/SCons/Tool/latex.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/ldc.py b/src/engine/SCons/Tool/ldc.py
index dda1a5e..639dd48 100644
--- a/src/engine/SCons/Tool/ldc.py
+++ b/src/engine/SCons/Tool/ldc.py
@@ -48,7 +48,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ldc.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/ldc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import subprocess
diff --git a/src/engine/SCons/Tool/ldc.xml b/src/engine/SCons/Tool/ldc.xml
index 691145a..40c9714 100644
--- a/src/engine/SCons/Tool/ldc.xml
+++ b/src/engine/SCons/Tool/ldc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -73,299 +73,4 @@ Sets construction variables for the D language compiler LDC2.
 </uses>
 </tool>
 
-<cvar name="DC">
-<summary>
-<para>
-The D compiler to use.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DCOM">
-<summary>
-<para>
-  The command line used to compile a D file to an object file.
-  Any options specified in the &cv-link-DFLAGS; construction variable
-  is included on this command line.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DDEBUG">
-<summary>
-<para>
-  List of debug tags to enable when compiling.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DFLAGS">
-<summary>
-<para>
-  General options that are passed to the D compiler.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLIB">
-<summary>
-<para>
-  Name of the lib tool to use for D codes.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLIBCOM">
-<summary>
-<para>
-  The command line to use when creating libraries.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINK">
-<summary>
-<para>
-  Name of the linker to use for linking systems including D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINKCOM">
-<summary>
-<para>
-  The command line to use when linking systems including D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DLINKFLAGS">
-<summary>
-<para>
-List of linker flags.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DPATH">
-<summary>
-<para>
-  List of paths to search for import modules.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DVERSIONS">
-<summary>
-<para>
-  List of version tags to enable when compiling.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDC">
-<summary>
-<para>
-  The name of the compiler to use when compiling D source
-  destined to be in a shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDCOM">
-<summary>
-<para>
-  The command line to use when compiling code to be part of shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINK">
-<summary>
-<para>
-  The linker to use when creating shared objects for code bases
-  include D sources.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINKCOM">
-<summary>
-<para>
-  The command line to use when generating shared objects.
-</para>
-</summary>
-</cvar>
-
-<cvar name="SHDLINKFLAGS">
-<summary>
-<para>
-  The list of flags to use when generating a shared object.
-</para>
-</summary>
-</cvar>
-
-<cvar name="DVERSUFFIX">
-  <summary>
-    <para>
-      DVERSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DVERPREFIX">
-  <summary>
-    <para>
-      DVERPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLINKFLAGSUFFIX">
-  <summary>
-    <para>
-      DLINKFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLINKFLAGPREFIX">
-  <summary>
-    <para>
-      DLINKFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBLINKSUFFIX">
-  <summary>
-    <para>
-      DLIBLINKSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBLINKPREFIX">
-  <summary>
-    <para>
-      DLIBLINKPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBFLAGSUFFIX">
-  <summary>
-    <para>
-      DLIBFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBFLAGPREFIX">
-  <summary>
-    <para>
-      DLIBFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBDIRSUFFIX">
-  <summary>
-    <para>
-      DLIBLINKSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DLIBDIRPREFIX">
-  <summary>
-    <para>
-      DLIBLINKPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DINCSUFFIX">
-  <summary>
-    <para>
-      DLIBFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-
-<cvar name="DINCPREFIX">
-  <summary>
-    <para>
-      DINCPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFLAGSUFFIX">
-  <summary>
-    <para>
-      DFLAGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFLAGPREFIX">
-  <summary>
-    <para>
-      DFLAGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DFILESUFFIX">
-  <summary>
-    <para>
-      DFILESUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DDEBUGPREFIX">
-  <summary>
-    <para>
-      DDEBUGPREFIX.
-    </para>
- </summary>
-</cvar>
-
-<cvar name="DDEBUGSUFFIX">
-  <summary>
-    <para>
-      DDEBUGSUFFIX.
-    </para>
- </summary>
-</cvar>
-
-<builder name="ProgramAllAtOnce">
-  <summary>
-    <para>
-      Builds an executable from D sources without first creating individual
-      objects for each file.
-    </para>
-    <para>
-      D sources can be compiled file-by-file as C and C++ source are, and
-      D is integrated into the &scons; Object and Program builders for
-      this model of build. D codes can though do whole source
-      meta-programming (some of the testing frameworks do this). For this
-      it is imperative that all sources are compiled and linked in a single call of
-      the D compiler. This builder serves that purpose.
-    </para>
-    <example_commands>
-      env.ProgramAllAtOnce('executable', ['mod_a.d, mod_b.d', 'mod_c.d'])
-    </example_commands>
-    <para>
-      This command will compile the modules mod_a, mod_b, and mod_c in a
-      single compilation process without first creating object files for
-      the modules. Some of the D compilers will create executable.o others
-      will not.
-    </para>
-  </summary>
-</builder>
-
 </sconsdoc>
diff --git a/src/engine/SCons/Tool/lex.py b/src/engine/SCons/Tool/lex.py
index 4831776..db1ca6d 100644
--- a/src/engine/SCons/Tool/lex.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/lex.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Tool/lex.xml b/src/engine/SCons/Tool/lex.xml
index 0d044b8..031da84 100644
--- a/src/engine/SCons/Tool/lex.xml
+++ b/src/engine/SCons/Tool/lex.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/link.py b/src/engine/SCons/Tool/link.py
index dcaf91f..c712732 100644
--- a/src/engine/SCons/Tool/link.py
+++ b/src/engine/SCons/Tool/link.py
@@ -32,7 +32,7 @@ selection method.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/link.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/link.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import re
diff --git a/src/engine/SCons/Tool/link.xml b/src/engine/SCons/Tool/link.xml
index a8b6954..1076c62 100644
--- a/src/engine/SCons/Tool/link.xml
+++ b/src/engine/SCons/Tool/link.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -26,7 +26,9 @@ See its __doc__ string for a discussion of the format.
 <tool name="link">
 <summary>
 <para>
-Sets construction variables for generic POSIX linkers.
+Sets construction variables for generic POSIX linkers. This is
+a "smart" linker tool which selects a compiler to complete the linking
+based on the types of source files.
 </para>
 </summary>
 <sets>
diff --git a/src/engine/SCons/Tool/linkloc.py b/src/engine/SCons/Tool/linkloc.py
index 42d010d..508b09a 100644
--- a/src/engine/SCons/Tool/linkloc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/linkloc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import re
diff --git a/src/engine/SCons/Tool/linkloc.xml b/src/engine/SCons/Tool/linkloc.xml
index 567ed66..8127f1b 100644
--- a/src/engine/SCons/Tool/linkloc.xml
+++ b/src/engine/SCons/Tool/linkloc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/m4.py b/src/engine/SCons/Tool/m4.py
index 0ecc82a..b71f6be 100644
--- a/src/engine/SCons/Tool/m4.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/m4.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Builder
diff --git a/src/engine/SCons/Tool/m4.xml b/src/engine/SCons/Tool/m4.xml
index f7e81e5..cb0cd6d 100644
--- a/src/engine/SCons/Tool/m4.xml
+++ b/src/engine/SCons/Tool/m4.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/masm.py b/src/engine/SCons/Tool/masm.py
index cf147a7..0897714 100644
--- a/src/engine/SCons/Tool/masm.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/masm.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/masm.xml b/src/engine/SCons/Tool/masm.xml
index 1760252..ede5422 100644
--- a/src/engine/SCons/Tool/masm.xml
+++ b/src/engine/SCons/Tool/masm.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/midl.py b/src/engine/SCons/Tool/midl.py
index f75204a..5ec5974 100644
--- a/src/engine/SCons/Tool/midl.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/midl.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Builder
diff --git a/src/engine/SCons/Tool/midl.xml b/src/engine/SCons/Tool/midl.xml
index 717eb38..73e680a 100644
--- a/src/engine/SCons/Tool/midl.xml
+++ b/src/engine/SCons/Tool/midl.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -86,7 +86,7 @@ The command line used to pass files to the Microsoft IDL compiler.
 <summary>
 <para>
 The string displayed when
-the Microsoft IDL copmiler is called.
+the Microsoft IDL compiler is called.
 If this is not set, then &cv-link-MIDLCOM; (the command line) is displayed.
 </para>
 </summary>
diff --git a/src/engine/SCons/Tool/mingw.py b/src/engine/SCons/Tool/mingw.py
index 8410d2f..3152bf2 100644
--- a/src/engine/SCons/Tool/mingw.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/mingw.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/mingw.xml b/src/engine/SCons/Tool/mingw.xml
index b1f028d..4becde2 100644
--- a/src/engine/SCons/Tool/mingw.xml
+++ b/src/engine/SCons/Tool/mingw.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/msgfmt.py b/src/engine/SCons/Tool/msgfmt.py
index c8141a0..1ee45e7 100644
--- a/src/engine/SCons/Tool/msgfmt.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/msgfmt.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Builder import BuilderBase
 #############################################################################
diff --git a/src/engine/SCons/Tool/msgfmt.xml b/src/engine/SCons/Tool/msgfmt.xml
index 67a8e0d..d185933 100644
--- a/src/engine/SCons/Tool/msgfmt.xml
+++ b/src/engine/SCons/Tool/msgfmt.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/msginit.py b/src/engine/SCons/Tool/msginit.py
index 69e803a..8ce9f02 100644
--- a/src/engine/SCons/Tool/msginit.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/msginit.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Warnings
 import SCons.Builder
diff --git a/src/engine/SCons/Tool/msginit.xml b/src/engine/SCons/Tool/msginit.xml
index d09dde1..9251d89 100644
--- a/src/engine/SCons/Tool/msginit.xml
+++ b/src/engine/SCons/Tool/msginit.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/msgmerge.py b/src/engine/SCons/Tool/msgmerge.py
index 4254fa6..748041d 100644
--- a/src/engine/SCons/Tool/msgmerge.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/msgmerge.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 #############################################################################
 def _update_or_init_po_files(target, source, env):
diff --git a/src/engine/SCons/Tool/msgmerge.xml b/src/engine/SCons/Tool/msgmerge.xml
index 2944679..78fa397 100644
--- a/src/engine/SCons/Tool/msgmerge.xml
+++ b/src/engine/SCons/Tool/msgmerge.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/mslib.py b/src/engine/SCons/Tool/mslib.py
index cecdbdc..88b5b1e 100644
--- a/src/engine/SCons/Tool/mslib.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/mslib.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 
diff --git a/src/engine/SCons/Tool/mslib.xml b/src/engine/SCons/Tool/mslib.xml
index a9b7cef..7ca3a00 100644
--- a/src/engine/SCons/Tool/mslib.xml
+++ b/src/engine/SCons/Tool/mslib.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/mslink.py b/src/engine/SCons/Tool/mslink.py
index 9fbce4b..d995d3b 100644
--- a/src/engine/SCons/Tool/mslink.py
+++ b/src/engine/SCons/Tool/mslink.py
@@ -32,7 +32,7 @@ selection method.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/mslink.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/mslink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/mslink.xml b/src/engine/SCons/Tool/mslink.xml
index 692c1da..42dd493 100644
--- a/src/engine/SCons/Tool/mslink.xml
+++ b/src/engine/SCons/Tool/mslink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/mssdk.py b/src/engine/SCons/Tool/mssdk.py
index 7a38c6a..55cb54a 100644
--- a/src/engine/SCons/Tool/mssdk.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/mssdk.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 """engine.SCons.Tool.mssdk
 
diff --git a/src/engine/SCons/Tool/mssdk.xml b/src/engine/SCons/Tool/mssdk.xml
index b84597e..ef17ae2 100644
--- a/src/engine/SCons/Tool/mssdk.xml
+++ b/src/engine/SCons/Tool/mssdk.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/msvc.py b/src/engine/SCons/Tool/msvc.py
index 052a0b0..0013015 100644
--- a/src/engine/SCons/Tool/msvc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/msvc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import os
diff --git a/src/engine/SCons/Tool/msvc.xml b/src/engine/SCons/Tool/msvc.xml
index b8b4f6d..96aa172 100644
--- a/src/engine/SCons/Tool/msvc.xml
+++ b/src/engine/SCons/Tool/msvc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/msvs.py b/src/engine/SCons/Tool/msvs.py
index 38965e3..4a4b390 100644
--- a/src/engine/SCons/Tool/msvs.py
+++ b/src/engine/SCons/Tool/msvs.py
@@ -32,7 +32,7 @@ selection method.
 
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/msvs.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/msvs.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
@@ -652,7 +652,7 @@ class _GenerateV6DSP(_DSPGenerator):
             for base in ("BASE ",""):
                 self.file.write('# PROP %sUse_MFC 0\n'
                                 '# PROP %sUse_Debug_Libraries ' % (base, base))
-                if kind.lower().find('debug') < 0:
+                if 'debug' not in kind.lower():
                     self.file.write('0\n')
                 else:
                     self.file.write('1\n')
@@ -731,7 +731,7 @@ class _GenerateV6DSP(_DSPGenerator):
         line = dspfile.readline()
         # skip until marker
         while line:
-            if line.find("# End Project") > -1:
+            if "# End Project" in line:
                 break
             line = dspfile.readline()
 
@@ -1049,7 +1049,7 @@ class _GenerateV7DSP(_DSPGenerator, _GenerateV7User):
         line = dspfile.readline()
         # skip until marker
         while line:
-            if line.find('<!-- SCons Data:') > -1:
+            if '<!-- SCons Data:' in line:
                 break
             line = dspfile.readline()
 
diff --git a/src/engine/SCons/Tool/msvs.xml b/src/engine/SCons/Tool/msvs.xml
index 9f2353a..26a16c4 100644
--- a/src/engine/SCons/Tool/msvs.xml
+++ b/src/engine/SCons/Tool/msvs.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/msvsTests.py b/src/engine/SCons/Tool/msvsTests.py
index e0b5ced..748631c 100644
--- a/src/engine/SCons/Tool/msvsTests.py
+++ b/src/engine/SCons/Tool/msvsTests.py
@@ -22,7 +22,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/msvsTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/msvsTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/Tool/mwcc.py b/src/engine/SCons/Tool/mwcc.py
index b2b2f5b..341a3ef 100644
--- a/src/engine/SCons/Tool/mwcc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/mwcc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/mwcc.xml b/src/engine/SCons/Tool/mwcc.xml
index e9f210c..51bc7ad 100644
--- a/src/engine/SCons/Tool/mwcc.xml
+++ b/src/engine/SCons/Tool/mwcc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/mwld.py b/src/engine/SCons/Tool/mwld.py
index 5049c55..5af02a6 100644
--- a/src/engine/SCons/Tool/mwld.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/mwld.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Tool
 
diff --git a/src/engine/SCons/Tool/mwld.xml b/src/engine/SCons/Tool/mwld.xml
index 261a039..406bc3f 100644
--- a/src/engine/SCons/Tool/mwld.xml
+++ b/src/engine/SCons/Tool/mwld.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/nasm.py b/src/engine/SCons/Tool/nasm.py
index d4d0a1b..f08930e 100644
--- a/src/engine/SCons/Tool/nasm.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/nasm.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/nasm.xml b/src/engine/SCons/Tool/nasm.xml
index 6626411..7715ce9 100644
--- a/src/engine/SCons/Tool/nasm.xml
+++ b/src/engine/SCons/Tool/nasm.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/packaging.xml b/src/engine/SCons/Tool/packaging.xml
index 9b46000..3469070 100644
--- a/src/engine/SCons/Tool/packaging.xml
+++ b/src/engine/SCons/Tool/packaging.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/packaging/__init__.py b/src/engine/SCons/Tool/packaging/__init__.py
index 72b9eef..4b947f9 100644
--- a/src/engine/SCons/Tool/packaging/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Environment
diff --git a/src/engine/SCons/Tool/packaging/__init__.xml b/src/engine/SCons/Tool/packaging/__init__.xml
index 1643def..662a82a 100644
--- a/src/engine/SCons/Tool/packaging/__init__.xml
+++ b/src/engine/SCons/Tool/packaging/__init__.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
@@ -850,9 +850,9 @@ Examples:
 </para>
 
 <example_commands>
-# makes sure the built library will be installed with 0644 file
+# makes sure the built library will be installed with 0o644 file
 # access mode
-Tag( Library( 'lib.c' ), UNIX_ATTR="0644" )
+Tag( Library( 'lib.c' ), UNIX_ATTR="0o644" )
 
 # marks file2.txt to be a documentation file
 Tag( 'file2.txt', DOC )
diff --git a/src/engine/SCons/Tool/packaging/ipk.py b/src/engine/SCons/Tool/packaging/ipk.py
index dbf5be8..8b4d79c 100644
--- a/src/engine/SCons/Tool/packaging/ipk.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/ipk.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 
diff --git a/src/engine/SCons/Tool/packaging/msi.py b/src/engine/SCons/Tool/packaging/msi.py
index 4a48b47..1d47268 100644
--- a/src/engine/SCons/Tool/packaging/msi.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/msi.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import SCons
@@ -224,7 +224,7 @@ def build_wxsfile(target, source, env):
 # setup function
 #
 def create_default_directory_layout(root, NAME, VERSION, VENDOR, filename_set):
-    """ Create the wix default target directory layout and return the innermost
+    r""" Create the wix default target directory layout and return the innermost
     directory.
 
     We assume that the XML tree delivered in the root argument already contains
diff --git a/src/engine/SCons/Tool/packaging/rpm.py b/src/engine/SCons/Tool/packaging/rpm.py
index a948e29..1554d09 100644
--- a/src/engine/SCons/Tool/packaging/rpm.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/rpm.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 
diff --git a/src/engine/SCons/Tool/packaging/src_tarbz2.py b/src/engine/SCons/Tool/packaging/src_tarbz2.py
index b628ccd..1889ec9 100644
--- a/src/engine/SCons/Tool/packaging/src_tarbz2.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/src_tarbz2.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/src_targz.py b/src/engine/SCons/Tool/packaging/src_targz.py
index 4c7469c..0d3a3db 100644
--- a/src/engine/SCons/Tool/packaging/src_targz.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/src_targz.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/src_tarxz.py b/src/engine/SCons/Tool/packaging/src_tarxz.py
index 6688c46..3042cac 100644
--- a/src/engine/SCons/Tool/packaging/src_tarxz.py
+++ b/src/engine/SCons/Tool/packaging/src_tarxz.py
@@ -26,7 +26,7 @@ The tarxz SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_tarxz.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/src_tarxz.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/src_zip.py b/src/engine/SCons/Tool/packaging/src_zip.py
index d56f3aa..207fb1c 100644
--- a/src/engine/SCons/Tool/packaging/src_zip.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/src_zip.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/tarbz2.py b/src/engine/SCons/Tool/packaging/tarbz2.py
index e371f1b..f34813b 100644
--- a/src/engine/SCons/Tool/packaging/tarbz2.py
+++ b/src/engine/SCons/Tool/packaging/tarbz2.py
@@ -26,7 +26,7 @@ The tarbz2 packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/tarbz2.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/tarbz2.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/targz.py b/src/engine/SCons/Tool/packaging/targz.py
index 121e4a4..8c694af 100644
--- a/src/engine/SCons/Tool/packaging/targz.py
+++ b/src/engine/SCons/Tool/packaging/targz.py
@@ -26,7 +26,7 @@ The targz packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/targz.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/targz.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/tarxz.py b/src/engine/SCons/Tool/packaging/tarxz.py
index 3ec9822..dc52aa9 100644
--- a/src/engine/SCons/Tool/packaging/tarxz.py
+++ b/src/engine/SCons/Tool/packaging/tarxz.py
@@ -26,7 +26,7 @@ The tarxz packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/tarxz.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/tarxz.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/src/engine/SCons/Tool/packaging/zip.py b/src/engine/SCons/Tool/packaging/zip.py
index 11ab3b5..c7da7e9 100644
--- a/src/engine/SCons/Tool/packaging/zip.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/packaging/zip.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/src/engine/SCons/Tool/pdf.py b/src/engine/SCons/Tool/pdf.py
index 50988b6..6d6310f 100644
--- a/src/engine/SCons/Tool/pdf.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/pdf.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Builder
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/pdf.xml b/src/engine/SCons/Tool/pdf.xml
index 876de15..394da06 100644
--- a/src/engine/SCons/Tool/pdf.xml
+++ b/src/engine/SCons/Tool/pdf.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/pdflatex.py b/src/engine/SCons/Tool/pdflatex.py
index 2c559f7..7550365 100644
--- a/src/engine/SCons/Tool/pdflatex.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/pdflatex.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Util
diff --git a/src/engine/SCons/Tool/pdflatex.xml b/src/engine/SCons/Tool/pdflatex.xml
index 975d5e9..fdcfd88 100644
--- a/src/engine/SCons/Tool/pdflatex.xml
+++ b/src/engine/SCons/Tool/pdflatex.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/pdftex.py b/src/engine/SCons/Tool/pdftex.py
index c658aa0..b6595c1 100644
--- a/src/engine/SCons/Tool/pdftex.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/pdftex.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import SCons.Action
diff --git a/src/engine/SCons/Tool/pdftex.xml b/src/engine/SCons/Tool/pdftex.xml
index 0a265e7..a17fe2b 100644
--- a/src/engine/SCons/Tool/pdftex.xml
+++ b/src/engine/SCons/Tool/pdftex.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/qt.py b/src/engine/SCons/Tool/qt.py
index a582e6f..351d487 100644
--- a/src/engine/SCons/Tool/qt.py
+++ b/src/engine/SCons/Tool/qt.py
@@ -33,7 +33,7 @@ selection method.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/qt.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/qt.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import re
diff --git a/src/engine/SCons/Tool/qt.xml b/src/engine/SCons/Tool/qt.xml
index 560a11d..7e7649d 100644
--- a/src/engine/SCons/Tool/qt.xml
+++ b/src/engine/SCons/Tool/qt.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/rmic.py b/src/engine/SCons/Tool/rmic.py
index d6f7b2b..9ff1674 100644
--- a/src/engine/SCons/Tool/rmic.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/rmic.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/rmic.xml b/src/engine/SCons/Tool/rmic.xml
index 2a273d3..c382312 100644
--- a/src/engine/SCons/Tool/rmic.xml
+++ b/src/engine/SCons/Tool/rmic.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/rpcgen.py b/src/engine/SCons/Tool/rpcgen.py
index b9f8ca6..1fb22f1 100644
--- a/src/engine/SCons/Tool/rpcgen.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/rpcgen.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from SCons.Builder import Builder
 import SCons.Util
diff --git a/src/engine/SCons/Tool/rpcgen.xml b/src/engine/SCons/Tool/rpcgen.xml
index 1ee9df9..16042cb 100644
--- a/src/engine/SCons/Tool/rpcgen.xml
+++ b/src/engine/SCons/Tool/rpcgen.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/rpm.py b/src/engine/SCons/Tool/rpm.py
index 0253365..39e7b59 100644
--- a/src/engine/SCons/Tool/rpm.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/rpm.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import re
diff --git a/src/engine/SCons/Tool/rpmutils.py b/src/engine/SCons/Tool/rpmutils.py
index a2400ff..4d8b9be 100644
--- a/src/engine/SCons/Tool/rpmutils.py
+++ b/src/engine/SCons/Tool/rpmutils.py
@@ -36,7 +36,7 @@ exact syntax.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/rpmutils.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/rpmutils.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 import platform
diff --git a/src/engine/SCons/Tool/sgiar.py b/src/engine/SCons/Tool/sgiar.py
index d82ec89..c249815 100644
--- a/src/engine/SCons/Tool/sgiar.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sgiar.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/sgiar.xml b/src/engine/SCons/Tool/sgiar.xml
index 6d28475..9a7769c 100644
--- a/src/engine/SCons/Tool/sgiar.xml
+++ b/src/engine/SCons/Tool/sgiar.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sgic++.py b/src/engine/SCons/Tool/sgic++.py
index 84d775a..0cb7a4a 100644
--- a/src/engine/SCons/Tool/sgic++.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sgic++.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 #forward proxy to the preffered cxx version
 from SCons.Tool.sgicxx import *
diff --git a/src/engine/SCons/Tool/sgic++.xml b/src/engine/SCons/Tool/sgic++.xml
index bab0392..4440081 100644
--- a/src/engine/SCons/Tool/sgic++.xml
+++ b/src/engine/SCons/Tool/sgic++.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sgicc.py b/src/engine/SCons/Tool/sgicc.py
index 537f1a3..b602be8 100644
--- a/src/engine/SCons/Tool/sgicc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sgicc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 from . import cc
 
diff --git a/src/engine/SCons/Tool/sgicc.xml b/src/engine/SCons/Tool/sgicc.xml
index f26944b..7235f89 100644
--- a/src/engine/SCons/Tool/sgicc.xml
+++ b/src/engine/SCons/Tool/sgicc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sgicxx.py b/src/engine/SCons/Tool/sgicxx.py
index d44ec26..8fe0441 100644
--- a/src/engine/SCons/Tool/sgicxx.py
+++ b/src/engine/SCons/Tool/sgicxx.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgicxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sgicxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/sgilink.py b/src/engine/SCons/Tool/sgilink.py
index ca9e69c..d5d6556 100644
--- a/src/engine/SCons/Tool/sgilink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sgilink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/sgilink.xml b/src/engine/SCons/Tool/sgilink.xml
index 7cc9818..d01f7e7 100644
--- a/src/engine/SCons/Tool/sgilink.xml
+++ b/src/engine/SCons/Tool/sgilink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sunar.py b/src/engine/SCons/Tool/sunar.py
index 07d45b2..af3d685 100644
--- a/src/engine/SCons/Tool/sunar.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sunar.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/src/engine/SCons/Tool/sunar.xml b/src/engine/SCons/Tool/sunar.xml
index 97d1a05..e30584a 100644
--- a/src/engine/SCons/Tool/sunar.xml
+++ b/src/engine/SCons/Tool/sunar.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sunc++.py b/src/engine/SCons/Tool/sunc++.py
index 1611fe9..5f09d94 100644
--- a/src/engine/SCons/Tool/sunc++.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sunc++.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 #forward proxy to the preffered cxx version
diff --git a/src/engine/SCons/Tool/sunc++.xml b/src/engine/SCons/Tool/sunc++.xml
index d1d0160..afc2ab0 100644
--- a/src/engine/SCons/Tool/sunc++.xml
+++ b/src/engine/SCons/Tool/sunc++.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/suncc.py b/src/engine/SCons/Tool/suncc.py
index da6ca6e..f40b6d3 100644
--- a/src/engine/SCons/Tool/suncc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/suncc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/suncc.xml b/src/engine/SCons/Tool/suncc.xml
index f191eda..31bfa63 100644
--- a/src/engine/SCons/Tool/suncc.xml
+++ b/src/engine/SCons/Tool/suncc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/suncxx.py b/src/engine/SCons/Tool/suncxx.py
index 1ee1c6a..0c70b68 100644
--- a/src/engine/SCons/Tool/suncxx.py
+++ b/src/engine/SCons/Tool/suncxx.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/suncxx.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/suncxx.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons
 
@@ -39,12 +39,14 @@ import os
 import re
 import subprocess
 
+from SCons.Util import PY3
 import SCons.Tool.cxx
 cplusplus = SCons.Tool.cxx
-#cplusplus = __import__('c++', globals(), locals(), [])
+# cplusplus = __import__('c++', globals(), locals(), [])
 
 package_info = {}
 
+
 def get_package_info(package_name, pkginfo, pkgchk):
     try:
         return package_info[package_name]
@@ -52,7 +54,7 @@ def get_package_info(package_name, pkginfo, pkgchk):
         version = None
         pathname = None
         try:
-            from subprocess import DEVNULL # py3k
+            from subprocess import DEVNULL  # py3k
         except ImportError:
             DEVNULL = open(os.devnull, 'wb')
 
@@ -68,13 +70,18 @@ def get_package_info(package_name, pkginfo, pkgchk):
                 pathname = os.path.dirname(sadm_match.group(1))
 
         try:
+            popen_args = {'stdout': subprocess.PIPE,
+                          'stderr': DEVNULL}
+            if PY3:
+                popen_args['universal_newlines'] = True
             p = subprocess.Popen([pkginfo, '-l', package_name],
-                                 stdout=subprocess.PIPE,
-                                 stderr=DEVNULL)
+                                 **popen_args)
         except EnvironmentError:
             pass
         else:
             pkginfo_contents = p.communicate()[0]
+            if not PY3:
+                pkginfo_contents.decode()
             version_re = re.compile(r'^ *VERSION:\s*(.*)$', re.M)
             version_match = version_re.search(pkginfo_contents)
             if version_match:
@@ -82,13 +89,18 @@ def get_package_info(package_name, pkginfo, pkgchk):
 
         if pathname is None:
             try:
+                popen_args = {'stdout': subprocess.PIPE,
+                              'stderr': DEVNULL}
+                if PY3:
+                    popen_args['universal_newlines'] = True
                 p = subprocess.Popen([pkgchk, '-l', package_name],
-                                     stdout=subprocess.PIPE,
-                                     stderr=DEVNULL)
+                                     **popen_args)
             except EnvironmentError:
                 pass
             else:
                 pkgchk_contents = p.communicate()[0]
+                if not PY3:
+                    pkgchk_contents.decode()
                 pathname_re = re.compile(r'^Pathname:\s*(.*/bin/CC)$', re.M)
                 pathname_match = pathname_re.search(pkgchk_contents)
                 if pathname_match:
@@ -97,7 +109,8 @@ def get_package_info(package_name, pkginfo, pkgchk):
         package_info[package_name] = (pathname, version)
         return package_info[package_name]
 
-# use the package installer tool lslpp to figure out where cppc and what
+
+# use the package installer tool "pkg" to figure out where cppc and what
 # version of it is installed
 def get_cppc(env):
     cxx = env.subst('$CXX')
@@ -119,6 +132,7 @@ def get_cppc(env):
 
     return (cppcPath, 'CC', 'CC', cppcVersion)
 
+
 def generate(env):
     """Add Builders and construction variables for SunPRO C++."""
     path, cxx, shcxx, version = get_cppc(env)
@@ -131,10 +145,11 @@ def generate(env):
     env['CXX'] = cxx
     env['SHCXX'] = shcxx
     env['CXXVERSION'] = version
-    env['SHCXXFLAGS']   = SCons.Util.CLVar('$CXXFLAGS -KPIC')
-    env['SHOBJPREFIX']  = 'so_'
-    env['SHOBJSUFFIX']  = '.o'
-    
+    env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS -KPIC')
+    env['SHOBJPREFIX'] = 'so_'
+    env['SHOBJSUFFIX'] = '.o'
+
+
 def exists(env):
     path, cxx, shcxx, version = get_cppc(env)
     if path and cxx:
diff --git a/src/engine/SCons/Tool/sunf77.py b/src/engine/SCons/Tool/sunf77.py
index c1c216f..2ea5447 100644
--- a/src/engine/SCons/Tool/sunf77.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sunf77.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/sunf77.xml b/src/engine/SCons/Tool/sunf77.xml
index fafcb8d..cdb3061 100644
--- a/src/engine/SCons/Tool/sunf77.xml
+++ b/src/engine/SCons/Tool/sunf77.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sunf90.py b/src/engine/SCons/Tool/sunf90.py
index 4cabee8..d69f8d1 100644
--- a/src/engine/SCons/Tool/sunf90.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sunf90.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/sunf90.xml b/src/engine/SCons/Tool/sunf90.xml
index f979e15..f8fc24f 100644
--- a/src/engine/SCons/Tool/sunf90.xml
+++ b/src/engine/SCons/Tool/sunf90.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sunf95.py b/src/engine/SCons/Tool/sunf95.py
index 077b1bc..f03c43f 100644
--- a/src/engine/SCons/Tool/sunf95.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sunf95.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Util
 
diff --git a/src/engine/SCons/Tool/sunf95.xml b/src/engine/SCons/Tool/sunf95.xml
index 4072d36..64bf0f8 100644
--- a/src/engine/SCons/Tool/sunf95.xml
+++ b/src/engine/SCons/Tool/sunf95.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/sunlink.py b/src/engine/SCons/Tool/sunlink.py
index 8d965fa..25ab4d4 100644
--- a/src/engine/SCons/Tool/sunlink.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/sunlink.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import os.path
diff --git a/src/engine/SCons/Tool/sunlink.xml b/src/engine/SCons/Tool/sunlink.xml
index 68eee54..2bb456e 100644
--- a/src/engine/SCons/Tool/sunlink.xml
+++ b/src/engine/SCons/Tool/sunlink.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/swig.py b/src/engine/SCons/Tool/swig.py
index 2e61b91..d724500 100644
--- a/src/engine/SCons/Tool/swig.py
+++ b/src/engine/SCons/Tool/swig.py
@@ -32,7 +32,7 @@ from __future__ import print_function
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/swig.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/swig.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
@@ -80,7 +80,7 @@ def _find_modules(src):
 
     for m in matches:
         mnames.append(m[2])
-        directors = directors or m[0].find('directors') >= 0
+        directors = directors or 'directors' in m[0]
     return mnames, directors
 
 def _add_director_header_targets(target, env):
diff --git a/src/engine/SCons/Tool/swig.xml b/src/engine/SCons/Tool/swig.xml
index 65a5971..6e6e7f0 100644
--- a/src/engine/SCons/Tool/swig.xml
+++ b/src/engine/SCons/Tool/swig.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/tar.py b/src/engine/SCons/Tool/tar.py
index 08c80f2..564ea0f 100644
--- a/src/engine/SCons/Tool/tar.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/tar.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Action
 import SCons.Builder
diff --git a/src/engine/SCons/Tool/tar.xml b/src/engine/SCons/Tool/tar.xml
index 95e8418..fd413ff 100644
--- a/src/engine/SCons/Tool/tar.xml
+++ b/src/engine/SCons/Tool/tar.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/tex.py b/src/engine/SCons/Tool/tex.py
index 9beb557..c9d9f55 100644
--- a/src/engine/SCons/Tool/tex.py
+++ b/src/engine/SCons/Tool/tex.py
@@ -33,7 +33,7 @@ selection method.
 #
 from __future__ import print_function
 
-__revision__ = "src/engine/SCons/Tool/tex.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/tex.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import re
@@ -297,8 +297,8 @@ def InternalLaTeXAuxAction(XXXLaTeXAction, target = None, source= None, env=None
         logfilename = targetbase + '.log'
         logContent = ''
         if os.path.isfile(logfilename):
-            with open(logfilename, "r") as f:
-                logContent = f.read()
+            with open(logfilename, "rb") as f:
+                logContent = f.read().decode(errors='replace')
 
 
         # Read the fls file to find all .aux files
diff --git a/src/engine/SCons/Tool/tex.xml b/src/engine/SCons/Tool/tex.xml
index c293977..ad91adc 100644
--- a/src/engine/SCons/Tool/tex.xml
+++ b/src/engine/SCons/Tool/tex.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/textfile.py b/src/engine/SCons/Tool/textfile.py
index 58a5007..906c1ac 100644
--- a/src/engine/SCons/Tool/textfile.py
+++ b/src/engine/SCons/Tool/textfile.py
@@ -44,7 +44,7 @@ Textfile/Substfile builder for SCons.
     is unpredictable whether the expansion will occur.
 """
 
-__revision__ = "src/engine/SCons/Tool/textfile.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/textfile.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons
 
diff --git a/src/engine/SCons/Tool/textfile.xml b/src/engine/SCons/Tool/textfile.xml
index 31d2d4f..8304c17 100644
--- a/src/engine/SCons/Tool/textfile.xml
+++ b/src/engine/SCons/Tool/textfile.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/tlib.py b/src/engine/SCons/Tool/tlib.py
index 4d8101b..935b83f 100644
--- a/src/engine/SCons/Tool/tlib.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/tlib.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Tool
 import SCons.Tool.bcc32
diff --git a/src/engine/SCons/Tool/tlib.xml b/src/engine/SCons/Tool/tlib.xml
index 2fd8c08..8235a66 100644
--- a/src/engine/SCons/Tool/tlib.xml
+++ b/src/engine/SCons/Tool/tlib.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/wix.py b/src/engine/SCons/Tool/wix.py
index e79e4a1..093cbcd 100644
--- a/src/engine/SCons/Tool/wix.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/wix.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.Builder
 import SCons.Action
diff --git a/src/engine/SCons/Tool/wixTests.py b/src/engine/SCons/Tool/wixTests.py
index f2649a3..3cde796 100644
--- a/src/engine/SCons/Tool/wixTests.py
+++ b/src/engine/SCons/Tool/wixTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/wixTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/wixTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import unittest
 import os.path
diff --git a/src/engine/SCons/Tool/xgettext.py b/src/engine/SCons/Tool/xgettext.py
index 185558e..1544a62 100644
--- a/src/engine/SCons/Tool/xgettext.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/xgettext.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import re
diff --git a/src/engine/SCons/Tool/xgettext.xml b/src/engine/SCons/Tool/xgettext.xml
index 079693f..5ab15fd 100644
--- a/src/engine/SCons/Tool/xgettext.xml
+++ b/src/engine/SCons/Tool/xgettext.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/yacc.py b/src/engine/SCons/Tool/yacc.py
index 6857574..0fdd5dd 100644
--- a/src/engine/SCons/Tool/yacc.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/yacc.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Tool/yacc.xml b/src/engine/SCons/Tool/yacc.xml
index 8ba3658..82274cb 100644
--- a/src/engine/SCons/Tool/yacc.xml
+++ b/src/engine/SCons/Tool/yacc.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Tool/zip.py b/src/engine/SCons/Tool/zip.py
index b7efdc7..8b7ab76 100644
--- a/src/engine/SCons/Tool/zip.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Tool/zip.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 
diff --git a/src/engine/SCons/Tool/zip.xml b/src/engine/SCons/Tool/zip.xml
index d7622dd..c7743c0 100644
--- a/src/engine/SCons/Tool/zip.xml
+++ b/src/engine/SCons/Tool/zip.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0"?>
 <!--
 Copyright (c) 2001 - 2019 The SCons Foundation
 
diff --git a/src/engine/SCons/Util.py b/src/engine/SCons/Util.py
index 5b4c225..2bc129a 100644
--- a/src/engine/SCons/Util.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Util.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/UtilTests.py b/src/engine/SCons/UtilTests.py
index 41a1647..e18dc13 100644
--- a/src/engine/SCons/UtilTests.py
+++ b/src/engine/SCons/UtilTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/UtilTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/UtilTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import SCons.compat
 
diff --git a/src/engine/SCons/Variables/BoolVariable.py b/src/engine/SCons/Variables/BoolVariable.py
index 4cb9f35..629faaf 100644
--- a/src/engine/SCons/Variables/BoolVariable.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/BoolVariable.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __all__ = ['BoolVariable',]
 
diff --git a/src/engine/SCons/Variables/BoolVariableTests.py b/src/engine/SCons/Variables/BoolVariableTests.py
index a184378..ca70253 100644
--- a/src/engine/SCons/Variables/BoolVariableTests.py
+++ b/src/engine/SCons/Variables/BoolVariableTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/BoolVariableTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/BoolVariableTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Variables/EnumVariable.py b/src/engine/SCons/Variables/EnumVariable.py
index ba9f972..22630a4 100644
--- a/src/engine/SCons/Variables/EnumVariable.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/EnumVariable.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __all__ = ['EnumVariable',]
 
diff --git a/src/engine/SCons/Variables/EnumVariableTests.py b/src/engine/SCons/Variables/EnumVariableTests.py
index 28b9d68..64d75a6 100644
--- a/src/engine/SCons/Variables/EnumVariableTests.py
+++ b/src/engine/SCons/Variables/EnumVariableTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/EnumVariableTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/EnumVariableTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Variables/ListVariable.py b/src/engine/SCons/Variables/ListVariable.py
index a30f265..bf0f856 100644
--- a/src/engine/SCons/Variables/ListVariable.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/ListVariable.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 # Known Bug: This should behave like a Set-Type, but does not really,
 # since elements can occur twice.
diff --git a/src/engine/SCons/Variables/ListVariableTests.py b/src/engine/SCons/Variables/ListVariableTests.py
index 86e2c9e..dd5f44f 100644
--- a/src/engine/SCons/Variables/ListVariableTests.py
+++ b/src/engine/SCons/Variables/ListVariableTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/ListVariableTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/ListVariableTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import copy
 import sys
diff --git a/src/engine/SCons/Variables/PackageVariable.py b/src/engine/SCons/Variables/PackageVariable.py
index 7c23cca..12b8974 100644
--- a/src/engine/SCons/Variables/PackageVariable.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/PackageVariable.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __all__ = ['PackageVariable',]
 
diff --git a/src/engine/SCons/Variables/PackageVariableTests.py b/src/engine/SCons/Variables/PackageVariableTests.py
index 2e48536..9d7ca53 100644
--- a/src/engine/SCons/Variables/PackageVariableTests.py
+++ b/src/engine/SCons/Variables/PackageVariableTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PackageVariableTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/PackageVariableTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Variables/PathVariable.py b/src/engine/SCons/Variables/PathVariable.py
index bf123fb..5b3059d 100644
--- a/src/engine/SCons/Variables/PathVariable.py
+++ b/src/engine/SCons/Variables/PathVariable.py
@@ -67,7 +67,7 @@ Usage example::
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PathVariable.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/PathVariable.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __all__ = ['PathVariable',]
 
diff --git a/src/engine/SCons/Variables/PathVariableTests.py b/src/engine/SCons/Variables/PathVariableTests.py
index d862887..fbcc5b8 100644
--- a/src/engine/SCons/Variables/PathVariableTests.py
+++ b/src/engine/SCons/Variables/PathVariableTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PathVariableTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/PathVariableTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Variables/VariablesTests.py b/src/engine/SCons/Variables/VariablesTests.py
index ed2edab..5822478 100644
--- a/src/engine/SCons/Variables/VariablesTests.py
+++ b/src/engine/SCons/Variables/VariablesTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/VariablesTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/VariablesTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/Variables/__init__.py b/src/engine/SCons/Variables/__init__.py
index 5b4b3af..31d6621 100644
--- a/src/engine/SCons/Variables/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Variables/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os.path
 import sys
diff --git a/src/engine/SCons/Warnings.py b/src/engine/SCons/Warnings.py
index 1c84d57..49a35a9 100644
--- a/src/engine/SCons/Warnings.py
+++ b/src/engine/SCons/Warnings.py
@@ -27,7 +27,7 @@ This file implements the warnings framework for SCons.
 
 """
 
-__revision__ = "src/engine/SCons/Warnings.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/Warnings.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 
@@ -120,33 +120,15 @@ class PythonVersionWarning(DeprecatedWarning):
 class DeprecatedSourceCodeWarning(FutureDeprecatedWarning):
     pass
 
-class DeprecatedBuildDirWarning(DeprecatedWarning):
-    pass
-
 class TaskmasterNeedsExecuteWarning(DeprecatedWarning):
     pass
 
-class DeprecatedCopyWarning(MandatoryDeprecatedWarning):
-    pass
-
 class DeprecatedOptionsWarning(MandatoryDeprecatedWarning):
     pass
 
-class DeprecatedSourceSignaturesWarning(MandatoryDeprecatedWarning):
-    pass
-
-class DeprecatedTargetSignaturesWarning(MandatoryDeprecatedWarning):
-    pass
-
 class DeprecatedDebugOptionsWarning(MandatoryDeprecatedWarning):
     pass
 
-class DeprecatedSigModuleWarning(MandatoryDeprecatedWarning):
-    pass
-
-class DeprecatedBuilderKeywordsWarning(MandatoryDeprecatedWarning):
-    pass
-
 class DeprecatedMissingSConscriptWarning(DeprecatedWarning):
     pass
 
diff --git a/src/engine/SCons/WarningsTests.py b/src/engine/SCons/WarningsTests.py
index 2b36eb2..7fb6d6b 100644
--- a/src/engine/SCons/WarningsTests.py
+++ b/src/engine/SCons/WarningsTests.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/WarningsTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/WarningsTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import sys
 import unittest
diff --git a/src/engine/SCons/__init__.py b/src/engine/SCons/__init__.py
index c915441..42582b1 100644
--- a/src/engine/SCons/__init__.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
-__version__ = "3.1.0"
+__version__ = "3.1.2"
 
-__build__ = "e724ae812eb96f4858a132f5b8c769724744faf6"
+__build__ = "bee7caf9defd6e108fc2998a2520ddb36a967691"
 
-__buildsys__ = "kufra"
+__buildsys__ = "octodog"
 
-__date__ = "2019-07-21 00:04:47"
+__date__ = "2019-12-17 02:07:09"
 
 __developer__ = "bdeegan"
 
diff --git a/src/engine/SCons/compat/__init__.py b/src/engine/SCons/compat/__init__.py
index dcbd8e8..a3935c3 100644
--- a/src/engine/SCons/compat/__init__.py
+++ b/src/engine/SCons/compat/__init__.py
@@ -57,7 +57,7 @@ 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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/compat/__init__.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import sys
diff --git a/src/engine/SCons/compat/_scons_dbm.py b/src/engine/SCons/compat/_scons_dbm.py
index ec5e261..c5da402 100644
--- a/src/engine/SCons/compat/_scons_dbm.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/compat/_scons_dbm.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 class error(Exception):
     pass
diff --git a/src/engine/SCons/cpp.py b/src/engine/SCons/cpp.py
index 7c4ac92..17a92e1 100644
--- a/src/engine/SCons/cpp.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/cpp.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 __doc__ = """
 SCons C Pre-Processor module
diff --git a/src/engine/SCons/cppTests.py b/src/engine/SCons/cppTests.py
index 6d41ab0..2e94bf8 100644
--- a/src/engine/SCons/cppTests.py
+++ b/src/engine/SCons/cppTests.py
@@ -23,7 +23,7 @@
 
 from __future__ import absolute_import
 
-__revision__ = "src/engine/SCons/cppTests.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/cppTests.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import atexit
 import sys
diff --git a/src/engine/SCons/exitfuncs.py b/src/engine/SCons/exitfuncs.py
index c5414a2..43ae73b 100644
--- a/src/engine/SCons/exitfuncs.py
+++ b/src/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 e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/engine/SCons/exitfuncs.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 
 import atexit
diff --git a/src/script/scons-configure-cache.py b/src/script/scons-configure-cache.py
index 757a79f..ee11943 100644
--- a/src/script/scons-configure-cache.py
+++ b/src/script/scons-configure-cache.py
@@ -37,15 +37,15 @@ import glob
 import json
 import os
 
-__revision__ = "src/script/scons-configure-cache.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/script/scons-configure-cache.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
-__version__ = "3.1.0"
+__version__ = "3.1.2"
 
-__build__ = "e724ae812eb96f4858a132f5b8c769724744faf6"
+__build__ = "bee7caf9defd6e108fc2998a2520ddb36a967691"
 
-__buildsys__ = "kufra"
+__buildsys__ = "octodog"
 
-__date__ = "2019-07-21 00:04:47"
+__date__ = "2019-12-17 02:07:09"
 
 __developer__ = "bdeegan"
 
diff --git a/src/script/scons-time.py b/src/script/scons-time.py
index 975ff64..c371d59 100644
--- a/src/script/scons-time.py
+++ b/src/script/scons-time.py
@@ -31,7 +31,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import division, print_function
 
-__revision__ = "src/script/scons-time.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/script/scons-time.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import getopt
 import glob
@@ -274,8 +274,6 @@ class SConsTimer(object):
         return kw
 
     default_settings = makedict(
-        aegis               = 'aegis',
-        aegis_project       = None,
         chdir               = None,
         config_file         = None,
         initial_commands    = [],
@@ -1113,7 +1111,6 @@ class SConsTimer(object):
         help = """\
         Usage: scons-time run [OPTIONS] [FILE ...]
 
-          --aegis=PROJECT               Use SCons from the Aegis PROJECT
           --chdir=DIR                   Name of unpacked directory for chdir
           -f FILE, --file=FILE          Read configuration from specified FILE
           -h, --help                    Print this help and exit
@@ -1138,7 +1135,6 @@ class SConsTimer(object):
         short_opts = '?f:hnp:qs:v'
 
         long_opts = [
-            'aegis=',
             'file=',
             'help',
             'no-exec',
@@ -1157,9 +1153,7 @@ class SConsTimer(object):
         opts, args = getopt.getopt(argv[1:], short_opts, long_opts)
 
         for o, a in opts:
-            if o in ('--aegis',):
-                self.aegis_project = a
-            elif o in ('-f', '--file'):
+            if o in ('-f', '--file'):
                 self.config_file = a
             elif o in ('-?', '-h', '--help'):
                 self.do_help(['help', 'run'])
@@ -1211,8 +1205,6 @@ class SConsTimer(object):
         prepare = None
         if self.subversion_url:
             prepare = self.prep_subversion_run
-        elif self.aegis_project:
-            prepare = self.prep_aegis_run
 
         for run_number in run_number_list:
             self.individual_run(run_number, self.archive_list, prepare)
@@ -1234,20 +1226,6 @@ class SConsTimer(object):
     def scons_lib_dir_path(self, dir):
         return os.path.join(dir, 'src', 'engine')
 
-    def prep_aegis_run(self, commands, removals):
-        self.aegis_tmpdir = tempfile.mkdtemp(prefix=self.name + '-aegis-')
-        removals.append((shutil.rmtree, 'rm -rf %%s', self.aegis_tmpdir))
-
-        self.aegis_parent_project = os.path.splitext(self.aegis_project)[0]
-        self.scons = self.scons_path(self.aegis_tmpdir)
-        self.scons_lib_dir = self.scons_lib_dir_path(self.aegis_tmpdir)
-
-        commands.extend([
-            (lambda: os.chdir(self.aegis_tmpdir), 'cd %(aegis_tmpdir)s'),
-            '%(aegis)s -cp -ind -p %(aegis_parent_project)s .',
-            '%(aegis)s -cp -ind -p %(aegis_project)s -delta %(run_number)s .',
-        ])
-
     def prep_subversion_run(self, commands, removals):
         self.svn_tmpdir = tempfile.mkdtemp(prefix=self.name + '-svn-')
         removals.append((shutil.rmtree, 'rm -rf %%s', self.svn_tmpdir))
diff --git a/src/script/scons.bat b/src/script/scons.bat
index 75e2a49..dc67188 100644
--- a/src/script/scons.bat
+++ b/src/script/scons.bat
@@ -1,11 +1,11 @@
 @REM Copyright (c) 2001 - 2019 The SCons Foundation

-@REM src/script/scons.bat e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan

+@REM src/script/scons.bat bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan

 @echo off

 set SCONS_ERRORLEVEL=

 if "%OS%" == "Windows_NT" goto WinNT

 

 @REM for 9x/Me you better not have more than 9 args

-python -c "from os.path import join; import sys; sys.path = [ join(sys.prefix, 'Lib', 'site-packages', 'scons-3.1.0'), join(sys.prefix, 'Lib', 'site-packages', 'scons'), join(sys.prefix, 'scons-3.1.0'), join(sys.prefix, 'scons')] + sys.path; import SCons.Script; SCons.Script.main()" %1 %2 %3 %4 %5 %6 %7 %8 %9

+python -c "from os.path import join; import sys; sys.path = [ join(sys.prefix, 'Lib', 'site-packages', 'scons-3.1.2'), join(sys.prefix, 'Lib', 'site-packages', 'scons'), join(sys.prefix, 'scons-3.1.2'), join(sys.prefix, 'scons')] + sys.path; import SCons.Script; SCons.Script.main()" %1 %2 %3 %4 %5 %6 %7 %8 %9

 @REM no way to set exit status of this script for 9x/Me

 goto endscons

 

diff --git a/src/script/scons.py b/src/script/scons.py
index b3172b1..d889e74 100755
--- a/src/script/scons.py
+++ b/src/script/scons.py
@@ -25,15 +25,15 @@
 
 from __future__ import print_function
 
-__revision__ = "src/script/scons.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/script/scons.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
-__version__ = "3.1.0"
+__version__ = "3.1.2"
 
-__build__ = "e724ae812eb96f4858a132f5b8c769724744faf6"
+__build__ = "bee7caf9defd6e108fc2998a2520ddb36a967691"
 
-__buildsys__ = "kufra"
+__buildsys__ = "octodog"
 
-__date__ = "2019-07-21 00:04:47"
+__date__ = "2019-12-17 02:07:09"
 
 __developer__ = "bdeegan"
 
diff --git a/src/script/sconsign.py b/src/script/sconsign.py
index a0d7b7e..b1f7cd0 100644
--- a/src/script/sconsign.py
+++ b/src/script/sconsign.py
@@ -25,15 +25,15 @@
 
 from __future__ import print_function
 
-__revision__ = "src/script/sconsign.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/script/sconsign.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
-__version__ = "3.1.0"
+__version__ = "3.1.2"
 
-__build__ = "e724ae812eb96f4858a132f5b8c769724744faf6"
+__build__ = "bee7caf9defd6e108fc2998a2520ddb36a967691"
 
-__buildsys__ = "kufra"
+__buildsys__ = "octodog"
 
-__date__ = "2019-07-21 00:04:47"
+__date__ = "2019-12-17 02:07:09"
 
 __developer__ = "bdeegan"
 
diff --git a/src/setup.py b/src/setup.py
index 790b1ea..0d4b62e 100755
--- a/src/setup.py
+++ b/src/setup.py
@@ -44,13 +44,13 @@ NOTE: Installed SCons is not importable like usual Python packages. It is
 """
 
 
-__revision__ = "src/setup.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/setup.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 import os
 import stat
 import sys
 
-Version = "3.1.0"
+Version = "3.1.2"
 
 man_pages = [
     'scons.1',
diff --git a/src/test_files.py b/src/test_files.py
index 42fb397..281027f 100644
--- a/src/test_files.py
+++ b/src/test_files.py
@@ -23,7 +23,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/test_files.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/test_files.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 """
 Verify that we have certain important files in our distribution
diff --git a/src/test_interrupts.py b/src/test_interrupts.py
index 4ae0969..8427553 100644
--- a/src/test_interrupts.py
+++ b/src/test_interrupts.py
@@ -23,7 +23,7 @@
 
 from __future__ import print_function
 
-__revision__ = "src/test_interrupts.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/test_interrupts.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 """
 Verify that the SCons source code contains only correct handling of
diff --git a/src/test_pychecker.py b/src/test_pychecker.py
index a93033d..a186ceb 100644
--- a/src/test_pychecker.py
+++ b/src/test_pychecker.py
@@ -22,7 +22,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import print_function
 
-__revision__ = "src/test_pychecker.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/test_pychecker.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 """
 Use pychecker to catch various Python coding errors.
diff --git a/src/test_setup.py b/src/test_setup.py
index b540ab2..56e14eb 100644
--- a/src/test_setup.py
+++ b/src/test_setup.py
@@ -23,7 +23,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/test_setup.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/test_setup.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 """
 Test how the setup.py script installs SCons.
@@ -176,7 +176,7 @@ tar_gz = os.path.join(cwd, 'build', 'dist', '%s.tar.gz' % scons_version)
 zip = os.path.join(cwd, 'build', 'dist', '%s.zip' % scons_version)
 
 if os.path.isfile(zip):
-    try: 
+    try:
         import zipfile
     except ImportError:
         pass
@@ -185,9 +185,9 @@ if os.path.isfile(zip):
 
             for name in zf.namelist():
                 dname = os.path.dirname(name)
-                try: 
+                try:
                     os.makedirs(dname)
-                except FileExistsError: 
+                except FileExistsError:
                     pass
                 # if the file exists, then delete it before writing
                 # to it so that we don't end up trying to write to a symlink:
@@ -325,8 +325,7 @@ test.must_have_installed(test.man_page_paths())
 other_prefix = test.workpath('other-prefix')
 test.subdir(other_prefix)
 test.run(arguments = 'setup.py install --prefix=%s' % other_prefix)
-test.fail_test(test.stderr().find("you'll have to change the search path yourself")
-               != -1)
+test.fail_test("you'll have to change the search path yourself" in test.stderr())
 
 # All done.
 test.pass_test()
diff --git a/src/test_strings.py b/src/test_strings.py
index ad2c755..555ca5d 100644
--- a/src/test_strings.py
+++ b/src/test_strings.py
@@ -23,7 +23,7 @@
 #
 from __future__ import print_function
 
-__revision__ = "src/test_strings.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
+__revision__ = "src/test_strings.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"
 
 """
 Verify that we have proper strings like Copyright notices on all the
@@ -109,7 +109,7 @@ class Checker(object):
 class CheckUnexpandedStrings(Checker):
     expressions = [
         re.compile('Copyright (c) 2001 - 2019 The SCons Foundation'),
-        re.compile('src/test_strings.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan'),
+        re.compile('src/test_strings.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan'),
     ]
     def must_be_built(self):
         return None