Merge tag 'upstream/2.4.1'

Upstream version 2.4.1
author: Jörg Frings-Fürst <debian@jff-webhosting.net> 2015-11-16 05:58:16 +0100
committer: Jörg Frings-Fürst <debian@jff-webhosting.net> 2015-11-16 05:58:16 +0100
commit: 60df8165e6be58369d76af4d38388c9846d82975 (patch)
tree: 827a72e604ad686e6817a40ff0dcaef405212276 /engine/SCons
parent: 9948951ec4fcd3c29d7d7ba981de1d1fea275595 (diff)
parent: 6a570afd28bccdb118edde36488ba9834494d6c7 (diff)
193 files changed, 1199 insertions, 614 deletions
diff --git a/engine/SCons/Action.py b/engine/SCons/Action.py
index 7acde46..7a4203c 100644
--- a/engine/SCons/Action.py
+++ b/engine/SCons/Action.py
@@ -97,7 +97,7 @@ way for wrapping up the functions.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Action.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Action.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import dis
 import os
diff --git a/engine/SCons/Builder.py b/engine/SCons/Builder.py
index 4c68d5c..6bdd008 100644
--- a/engine/SCons/Builder.py
+++ b/engine/SCons/Builder.py
@@ -97,7 +97,7 @@ There are the following methods for internal use within this module:
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Builder.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Builder.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import collections
 
@@ -292,8 +292,8 @@ def _node_errors(builder, env, tlist, slist):
         if t.has_explicit_builder():
             if not t.env is None and not t.env is env:
                 action = t.builder.action
-                t_contents = action.get_contents(tlist, slist, t.env)
-                contents = action.get_contents(tlist, slist, env)
+                t_contents = t.builder.action.get_contents(tlist, slist, t.env)
+                contents = builder.action.get_contents(tlist, slist, env)
 
                 if t_contents == contents:
                     msg = "Two different environments were specified for target %s,\n\tbut they appear to have the same action: %s" % (t, action.genstring(tlist, slist, t.env))
diff --git a/engine/SCons/CacheDir.py b/engine/SCons/CacheDir.py
index 9e3ec6b..086d44d 100644
--- a/engine/SCons/CacheDir.py
+++ b/engine/SCons/CacheDir.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/CacheDir.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/CacheDir.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """
 CacheDir support
diff --git a/engine/SCons/Conftest.py b/engine/SCons/Conftest.py
index e9702ff..87a3022 100644
--- a/engine/SCons/Conftest.py
+++ b/engine/SCons/Conftest.py
@@ -684,6 +684,22 @@ return 0;
 
     return ret
 
+def CheckProg(context, prog_name):
+    """
+    Configure check for a specific program.
+
+    Check whether program prog_name exists in path.  If it is found,
+    returns the path for it, otherwise returns None.
+    """
+    context.Display("Checking whether %s program exists..." % prog_name)
+    path = context.env.WhereIs(prog_name)
+    if path:
+        context.Display(path + "\n")
+    else:
+        context.Display("no\n")
+    return path
+
+
 #
 # END OF PUBLIC FUNCTIONS
 #
diff --git a/engine/SCons/Debug.py b/engine/SCons/Debug.py
index 0aa077d..22d09ab 100644
--- a/engine/SCons/Debug.py
+++ b/engine/SCons/Debug.py
@@ -28,7 +28,7 @@ needed by most users.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Debug.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Debug.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import sys
diff --git a/engine/SCons/Defaults.py b/engine/SCons/Defaults.py
index b4cbb9a..8c86c95 100644
--- a/engine/SCons/Defaults.py
+++ b/engine/SCons/Defaults.py
@@ -33,7 +33,7 @@ from distutils.msvccompiler.
 #
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Defaults.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Defaults.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 
 import os
@@ -482,6 +482,15 @@ class Variable_Method_Caller(object):
             frame = frame.f_back
         return None
 
+# if env[version_var] id defined, returns env[flags_var], otherwise returns None
+def __libversionflags(env, version_var, flags_var):
+    try:
+        if env[version_var]:
+            return env[flags_var]
+    except KeyError:
+        pass
+    return None
+
 ConstructionEnvironment = {
     'BUILDERS'      : {},
     'SCANNERS'      : [],
@@ -499,6 +508,12 @@ ConstructionEnvironment = {
     '_LIBDIRFLAGS'  : '$( ${_concat(LIBDIRPREFIX, LIBPATH, LIBDIRSUFFIX, __env__, RDirs, TARGET, SOURCE)} $)',
     '_CPPINCFLAGS'  : '$( ${_concat(INCPREFIX, CPPPATH, INCSUFFIX, __env__, RDirs, TARGET, SOURCE)} $)',
     '_CPPDEFFLAGS'  : '${_defines(CPPDEFPREFIX, CPPDEFINES, CPPDEFSUFFIX, __env__)}',
+
+    '__libversionflags'      : __libversionflags,
+    '__SHLIBVERSIONFLAGS'    : '${__libversionflags(__env__,"SHLIBVERSION","_SHLIBVERSIONFLAGS")}',
+    '__LDMODULEVERSIONFLAGS' : '${__libversionflags(__env__,"LDMODULEVERSION","_LDMODULEVERSIONFLAGS")}',
+    '__DSHLIBVERSIONFLAGS'   : '${__libversionflags(__env__,"DSHLIBVERSION","_DSHLIBVERSIONFLAGS")}',
+
     'TEMPFILE'      : NullCmdGenerator,
     'Dir'           : Variable_Method_Caller('TARGET', 'Dir'),
     'Dirs'          : Variable_Method_Caller('TARGET', 'Dirs'),
diff --git a/engine/SCons/Environment.py b/engine/SCons/Environment.py
index 865c821..b779302 100644
--- a/engine/SCons/Environment.py
+++ b/engine/SCons/Environment.py
@@ -31,7 +31,7 @@ Environment
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Environment.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Environment.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 
 import copy
@@ -612,7 +612,7 @@ class SubstitutionEnvironment(object):
 
     def Override(self, overrides):
         """
-        Produce a modified environment whose variables are overriden by
+        Produce a modified environment whose variables are overridden by
         the overrides dictionaries.  "overrides" is a dictionary that
         will override the variables of this environment.
 
diff --git a/engine/SCons/Errors.py b/engine/SCons/Errors.py
index 998a70d..d19d8e4 100644
--- a/engine/SCons/Errors.py
+++ b/engine/SCons/Errors.py
@@ -28,7 +28,7 @@ and user errors in SCons.
 
 """
 
-__revision__ = "src/engine/SCons/Errors.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Errors.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Executor.py b/engine/SCons/Executor.py
index 3211fd1..f7a4ee1 100644
--- a/engine/SCons/Executor.py
+++ b/engine/SCons/Executor.py
@@ -27,7 +27,7 @@ Nodes.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Executor.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Executor.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import collections
 
diff --git a/engine/SCons/Job.py b/engine/SCons/Job.py
index 60aa0ae..08c6c30 100644
--- a/engine/SCons/Job.py
+++ b/engine/SCons/Job.py
@@ -29,7 +29,7 @@ stop, and wait on jobs.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Job.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Job.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.compat
 
diff --git a/engine/SCons/Memoize.py b/engine/SCons/Memoize.py
index 77a8e16..8051c6b 100644
--- a/engine/SCons/Memoize.py
+++ b/engine/SCons/Memoize.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Memoize.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Memoize.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Memoizer
 
diff --git a/engine/SCons/Node/Alias.py b/engine/SCons/Node/Alias.py
index 7e13b00..3b58d4d 100644
--- a/engine/SCons/Node/Alias.py
+++ b/engine/SCons/Node/Alias.py
@@ -30,7 +30,7 @@ This creates a hash of global Aliases (dummy targets).
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Node/Alias.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Node/Alias.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import collections
 
diff --git a/engine/SCons/Node/FS.py b/engine/SCons/Node/FS.py
index b6a1bb5..bd43676 100644
--- a/engine/SCons/Node/FS.py
+++ b/engine/SCons/Node/FS.py
@@ -32,7 +32,7 @@ that can be used by scripts or modules looking for the canonical default.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Node/FS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Node/FS.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import fnmatch
 import os
@@ -2182,7 +2182,12 @@ class Dir(Base):
                     r = [os.path.join(str(dir), x) for x in r]
                 result.extend(r)
         if exclude:
-            result = filter(lambda x: not any(fnmatch.fnmatch(str(x), e) for e in SCons.Util.flatten(exclude)), result)
+            excludes = []
+            excludeList = SCons.Util.flatten(exclude)
+            for x in excludeList:
+                r = self.glob(x, ondisk, source, strings)
+                excludes.extend(r)
+            result = filter(lambda x: not any(fnmatch.fnmatch(str(x), str(e)) for e in SCons.Util.flatten(excludes)), result)
         return sorted(result, key=lambda a: str(a))
 
     def _glob1(self, pattern, ondisk=True, source=False, strings=False):
diff --git a/engine/SCons/Node/Python.py b/engine/SCons/Node/Python.py
index b247ff6..1717528 100644
--- a/engine/SCons/Node/Python.py
+++ b/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 rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Node/Python.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Node
 
diff --git a/engine/SCons/Node/__init__.py b/engine/SCons/Node/__init__.py
index 79db894..4cd62d5 100644
--- a/engine/SCons/Node/__init__.py
+++ b/engine/SCons/Node/__init__.py
@@ -41,7 +41,7 @@ be able to depend on any other type of "thing."
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Node/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Node/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import collections
 import copy
diff --git a/engine/SCons/Options/BoolOption.py b/engine/SCons/Options/BoolOption.py
index c8d901f..62aa952 100644
--- a/engine/SCons/Options/BoolOption.py
+++ b/engine/SCons/Options/BoolOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/BoolOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Options/BoolOption.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/EnumOption.py b/engine/SCons/Options/EnumOption.py
index 58b99ef..3e689af 100644
--- a/engine/SCons/Options/EnumOption.py
+++ b/engine/SCons/Options/EnumOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/EnumOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Options/EnumOption.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/ListOption.py b/engine/SCons/Options/ListOption.py
index 00c93d9..c9a7f8f 100644
--- a/engine/SCons/Options/ListOption.py
+++ b/engine/SCons/Options/ListOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/ListOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Options/ListOption.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/PackageOption.py b/engine/SCons/Options/PackageOption.py
index 56624f0..5a12cbe 100644
--- a/engine/SCons/Options/PackageOption.py
+++ b/engine/SCons/Options/PackageOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/PackageOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Options/PackageOption.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/PathOption.py b/engine/SCons/Options/PathOption.py
index a4b81ec..00070b1 100644
--- a/engine/SCons/Options/PathOption.py
+++ b/engine/SCons/Options/PathOption.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/PathOption.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Options/PathOption.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/Options/__init__.py b/engine/SCons/Options/__init__.py
index 5099712..5612ad0 100644
--- a/engine/SCons/Options/__init__.py
+++ b/engine/SCons/Options/__init__.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Options/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Options/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Options module hierarchy
 
diff --git a/engine/SCons/PathList.py b/engine/SCons/PathList.py
index b359144..61b64ff 100644
--- a/engine/SCons/PathList.py
+++ b/engine/SCons/PathList.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/PathList.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/PathList.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """SCons.PathList
 
diff --git a/engine/SCons/Platform/__init__.py b/engine/SCons/Platform/__init__.py
index ca4bc9b..d8be160 100644
--- a/engine/SCons/Platform/__init__.py
+++ b/engine/SCons/Platform/__init__.py
@@ -42,7 +42,7 @@ their own platform definition.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.compat
 
diff --git a/engine/SCons/Platform/aix.py b/engine/SCons/Platform/aix.py
index 44bccd1..f36eab6 100644
--- a/engine/SCons/Platform/aix.py
+++ b/engine/SCons/Platform/aix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/aix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/aix.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import subprocess
diff --git a/engine/SCons/Platform/cygwin.py b/engine/SCons/Platform/cygwin.py
index d04bbe7..a901ac3 100644
--- a/engine/SCons/Platform/cygwin.py
+++ b/engine/SCons/Platform/cygwin.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/cygwin.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/cygwin.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import posix
 from SCons.Platform import TempFileMunge
@@ -42,8 +42,8 @@ def generate(env):
     env['PROGSUFFIX']  = '.exe'
     env['SHLIBPREFIX'] = ''
     env['SHLIBSUFFIX'] = '.dll'
-    env['LIBPREFIXES'] = [ '$LIBPREFIX', '$SHLIBPREFIX' ]
-    env['LIBSUFFIXES'] = [ '$LIBSUFFIX', '$SHLIBSUFFIX' ]
+    env['LIBPREFIXES'] = [ '$LIBPREFIX', '$SHLIBPREFIX', '$IMPLIBPREFIX' ]
+    env['LIBSUFFIXES'] = [ '$LIBSUFFIX', '$SHLIBSUFFIX', '$IMPLIBSUFFIX' ]
     env['TEMPFILE']    = TempFileMunge
     env['TEMPFILEPREFIX'] = '@'
     env['MAXLINELENGTH']  = 2048
diff --git a/engine/SCons/Platform/darwin.py b/engine/SCons/Platform/darwin.py
index efd8ba4..73f140f 100644
--- a/engine/SCons/Platform/darwin.py
+++ b/engine/SCons/Platform/darwin.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/darwin.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/darwin.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import posix
 import os
diff --git a/engine/SCons/Platform/hpux.py b/engine/SCons/Platform/hpux.py
index 2e2fbca..36e6764 100644
--- a/engine/SCons/Platform/hpux.py
+++ b/engine/SCons/Platform/hpux.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/hpux.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/hpux.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import posix
 
diff --git a/engine/SCons/Platform/irix.py b/engine/SCons/Platform/irix.py
index 3bedbdf..e947b54 100644
--- a/engine/SCons/Platform/irix.py
+++ b/engine/SCons/Platform/irix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/irix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/irix.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import posix
 
diff --git a/engine/SCons/Platform/os2.py b/engine/SCons/Platform/os2.py
index 82eb163..5f32844 100644
--- a/engine/SCons/Platform/os2.py
+++ b/engine/SCons/Platform/os2.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/os2.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/os2.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 import win32
 
 def generate(env):
diff --git a/engine/SCons/Platform/posix.py b/engine/SCons/Platform/posix.py
index 8445863..78e80f3 100644
--- a/engine/SCons/Platform/posix.py
+++ b/engine/SCons/Platform/posix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/posix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/posix.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import errno
 import os
diff --git a/engine/SCons/Platform/sunos.py b/engine/SCons/Platform/sunos.py
index 1c1d797..7646eb7 100644
--- a/engine/SCons/Platform/sunos.py
+++ b/engine/SCons/Platform/sunos.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/sunos.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/sunos.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import posix
 
diff --git a/engine/SCons/Platform/win32.py b/engine/SCons/Platform/win32.py
index 3bad86b..f5c787a 100644
--- a/engine/SCons/Platform/win32.py
+++ b/engine/SCons/Platform/win32.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Platform/win32.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Platform/win32.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/SConf.py b/engine/SCons/SConf.py
index 2ef4003..5a15856 100644
--- a/engine/SCons/SConf.py
+++ b/engine/SCons/SConf.py
@@ -34,7 +34,7 @@ libraries are installed, if some command line options are supported etc.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/SConf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/SConf.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.compat
 
@@ -444,6 +444,7 @@ class SConfBase(object):
                  'CheckCXXHeader'     : CheckCXXHeader,
                  'CheckLib'           : CheckLib,
                  'CheckLibWithHeader' : CheckLibWithHeader,
+                 'CheckProg'          : CheckProg,
                }
         self.AddTests(default_tests)
         self.AddTests(custom_tests)
@@ -1047,6 +1048,14 @@ def CheckLibWithHeader(context, libs, header, language,
     context.did_show_result = 1
     return not res
 
+def CheckProg(context, prog_name):
+    """Simple check if a program exists in the path.  Returns the path
+    for the application, or None if not found.
+    """
+    res = SCons.Conftest.CheckProg(context, prog_name)
+    context.did_show_result = 1
+    return res
+
 # Local Variables:
 # tab-width:4
 # indent-tabs-mode:nil
diff --git a/engine/SCons/SConsign.py b/engine/SCons/SConsign.py
index e31a3eb..7ce8c5e 100644
--- a/engine/SCons/SConsign.py
+++ b/engine/SCons/SConsign.py
@@ -27,7 +27,7 @@ Writing and reading information to the .sconsign file or files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/SConsign.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/SConsign.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.compat
 
diff --git a/engine/SCons/Scanner/C.py b/engine/SCons/Scanner/C.py
index 33e1145..bdccb34 100644
--- a/engine/SCons/Scanner/C.py
+++ b/engine/SCons/Scanner/C.py
@@ -27,7 +27,7 @@ This module implements the depenency scanner for C/C++ code.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/C.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/C.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/D.py b/engine/SCons/Scanner/D.py
index 2c51a09..0b917d5 100644
--- a/engine/SCons/Scanner/D.py
+++ b/engine/SCons/Scanner/D.py
@@ -30,7 +30,7 @@ Coded by Andy Friesen
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/D.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/D.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Scanner/Dir.py b/engine/SCons/Scanner/Dir.py
index 7565423..6956d64 100644
--- a/engine/SCons/Scanner/Dir.py
+++ b/engine/SCons/Scanner/Dir.py
@@ -20,7 +20,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Scanner/Dir.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/Dir.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/Fortran.py b/engine/SCons/Scanner/Fortran.py
index a1f3927..97cd3b2 100644
--- a/engine/SCons/Scanner/Fortran.py
+++ b/engine/SCons/Scanner/Fortran.py
@@ -26,7 +26,7 @@ This module implements the dependency scanner for Fortran code.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Scanner/Fortran.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/Fortran.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Scanner/IDL.py b/engine/SCons/Scanner/IDL.py
index 6758bd2..0df939c 100644
--- a/engine/SCons/Scanner/IDL.py
+++ b/engine/SCons/Scanner/IDL.py
@@ -28,7 +28,7 @@ Definition Language) files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/IDL.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/IDL.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/LaTeX.py b/engine/SCons/Scanner/LaTeX.py
index aed074c..487627c 100644
--- a/engine/SCons/Scanner/LaTeX.py
+++ b/engine/SCons/Scanner/LaTeX.py
@@ -27,7 +27,7 @@ This module implements the dependency scanner for LaTeX code.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/LaTeX.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/LaTeX.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Scanner/Prog.py b/engine/SCons/Scanner/Prog.py
index c0511dc..d464c89 100644
--- a/engine/SCons/Scanner/Prog.py
+++ b/engine/SCons/Scanner/Prog.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/Prog.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/Prog.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Node
 import SCons.Node.FS
diff --git a/engine/SCons/Scanner/RC.py b/engine/SCons/Scanner/RC.py
index f73b47e..ea3893b 100644
--- a/engine/SCons/Scanner/RC.py
+++ b/engine/SCons/Scanner/RC.py
@@ -28,7 +28,7 @@ Definition Language) files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/RC.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/RC.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Node.FS
 import SCons.Scanner
diff --git a/engine/SCons/Scanner/__init__.py b/engine/SCons/Scanner/__init__.py
index d51cb9e..aca07e2 100644
--- a/engine/SCons/Scanner/__init__.py
+++ b/engine/SCons/Scanner/__init__.py
@@ -27,7 +27,7 @@ The Scanner package for the SCons software construction utility.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Scanner/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Scanner/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Script/Interactive.py b/engine/SCons/Script/Interactive.py
index afcde0c..afb35af 100644
--- a/engine/SCons/Script/Interactive.py
+++ b/engine/SCons/Script/Interactive.py
@@ -20,7 +20,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Script/Interactive.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Script/Interactive.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """
 SCons interactive mode
diff --git a/engine/SCons/Script/Main.py b/engine/SCons/Script/Main.py
index 6684fbd..d1ed77a 100644
--- a/engine/SCons/Script/Main.py
+++ b/engine/SCons/Script/Main.py
@@ -34,7 +34,7 @@ deprecated_python_version = (2, 7, 0)
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Script/Main.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Script/Main.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.compat
 
@@ -484,6 +484,9 @@ def GetOption(name):
 def SetOption(name, value):
     return OptionsParser.values.set_option(name, value)
 
+def PrintHelp(file=None):
+    OptionsParser.print_help(file=file)
+
 #
 class Stats(object):
     def __init__(self):
diff --git a/engine/SCons/Script/SConsOptions.py b/engine/SCons/Script/SConsOptions.py
index 7e458aa..6d02b0a 100644
--- a/engine/SCons/Script/SConsOptions.py
+++ b/engine/SCons/Script/SConsOptions.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Script/SConsOptions.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Script/SConsOptions.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import optparse
 import re
@@ -268,7 +268,7 @@ class SConsOptionParser(optparse.OptionParser):
     preserve_unknown_options = False
 
     def error(self, msg):
-        # overriden OptionValueError exception handler
+        # overridden OptionValueError exception handler
         self.print_usage(sys.stderr)
         sys.stderr.write("SCons Error: %s\n" % msg)
         sys.exit(2)
diff --git a/engine/SCons/Script/SConscript.py b/engine/SCons/Script/SConscript.py
index ead6f2e..2d66f5c 100644
--- a/engine/SCons/Script/SConscript.py
+++ b/engine/SCons/Script/SConscript.py
@@ -28,7 +28,7 @@ files.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Script/SConscript.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Script/SConscript.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons
 import SCons.Action
@@ -499,9 +499,9 @@ class SConsEnvironment(SCons.Environment.Base):
         name = self.subst(name)
         return SCons.Script.Main.GetOption(name)
 
-    def Help(self, text):
+    def Help(self, text, append=False):
         text = self.subst(text, raw=1)
-        SCons.Script.HelpFunction(text)
+        SCons.Script.HelpFunction(text, append=append)
 
     def Import(self, *vars):
         try:
diff --git a/engine/SCons/Script/__init__.py b/engine/SCons/Script/__init__.py
index c21882f..f9c4e51 100644
--- a/engine/SCons/Script/__init__.py
+++ b/engine/SCons/Script/__init__.py
@@ -34,13 +34,14 @@ it goes here.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Script/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Script/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import time
 start_time = time.time()
 
 import collections
 import os
+import StringIO
 import sys
 
 # Special chicken-and-egg handling of the "--debug=memoizer" flag:
@@ -107,6 +108,7 @@ QuestionTask            = Main.QuestionTask
 #SConscriptSettableOptions = Main.SConscriptSettableOptions
 
 AddOption               = Main.AddOption
+PrintHelp               = Main.PrintHelp
 GetOption               = Main.GetOption
 SetOption               = Main.SetOption
 Progress                = Main.Progress
@@ -258,12 +260,25 @@ def _Set_Default_Targets(env, tlist):
 #
 help_text = None
 
-def HelpFunction(text):
+def HelpFunction(text, append=False):
     global help_text
-    if SCons.Script.help_text is None:
-        SCons.Script.help_text = text
-    else:
-        help_text = help_text + text
+    if help_text is None:
+        if append:
+            s = StringIO.StringIO()
+            PrintHelp(s)  
+            help_text = s.getvalue()
+            s.close()
+        else:
+            help_text = ""
+#            
+# Was in original patch but this text is arbitrary and breaks tests
+# so I removed it (Deegan)
+#        help_text = help_text + "\nLocal Build Variables:\n" + text
+#    else:
+#        help_text = help_text + text
+
+    help_text= help_text + text
+
 
 #
 # Will be non-zero if we are reading an SConscript file.
@@ -318,6 +333,7 @@ GlobalDefaultEnvironmentFunctions = [
     'Ignore',
     'Install',
     'InstallAs',
+    'InstallVersionedLib',
     'Literal',
     'Local',
     'ParseDepends',
diff --git a/engine/SCons/Sig.py b/engine/SCons/Sig.py
index e949cfb..6069d55 100644
--- a/engine/SCons/Sig.py
+++ b/engine/SCons/Sig.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Sig.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Sig.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Place-holder for the old SCons.Sig module hierarchy
 
diff --git a/engine/SCons/Subst.py b/engine/SCons/Subst.py
index da0fa68..8a3a359 100644
--- a/engine/SCons/Subst.py
+++ b/engine/SCons/Subst.py
@@ -26,7 +26,7 @@ SCons string substitution.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Subst.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Subst.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import collections
 import re
diff --git a/engine/SCons/Taskmaster.py b/engine/SCons/Taskmaster.py
index b303f79..f77bde1 100644
--- a/engine/SCons/Taskmaster.py
+++ b/engine/SCons/Taskmaster.py
@@ -47,7 +47,7 @@ interface and the SCons build engine.  There are two key classes here:
         target(s) that it decides need to be evaluated and/or built.
 """
 
-__revision__ = "src/engine/SCons/Taskmaster.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Taskmaster.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from itertools import chain
 import operator
diff --git a/engine/SCons/Tool/386asm.py b/engine/SCons/Tool/386asm.py
index 06d271e..56b8b38 100644
--- a/engine/SCons/Tool/386asm.py
+++ b/engine/SCons/Tool/386asm.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/386asm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/386asm.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.PharLapCommon import addPharLapPaths
 import SCons.Util
diff --git a/engine/SCons/Tool/BitKeeper.py b/engine/SCons/Tool/BitKeeper.py
index 9df9f59..88fabd1 100644
--- a/engine/SCons/Tool/BitKeeper.py
+++ b/engine/SCons/Tool/BitKeeper.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/BitKeeper.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/BitKeeper.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/CVS.py b/engine/SCons/Tool/CVS.py
index 14bc18e..e852236 100644
--- a/engine/SCons/Tool/CVS.py
+++ b/engine/SCons/Tool/CVS.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/CVS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/CVS.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/DCommon.py b/engine/SCons/Tool/DCommon.py
index db03660..c383349 100644
--- a/engine/SCons/Tool/DCommon.py
+++ b/engine/SCons/Tool/DCommon.py
@@ -28,7 +28,7 @@ Coded by Russel Winder (russel@winder.org.uk)
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/DCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/DCommon.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/FortranCommon.py b/engine/SCons/Tool/FortranCommon.py
index b8ff7d9..45bd648 100644
--- a/engine/SCons/Tool/FortranCommon.py
+++ b/engine/SCons/Tool/FortranCommon.py
@@ -27,7 +27,7 @@ Stuff for processing Fortran, common to all fortran dialects.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/FortranCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/FortranCommon.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import re
 import os.path
diff --git a/engine/SCons/Tool/GettextCommon.py b/engine/SCons/Tool/GettextCommon.py
index af9b074..36f8fa2 100644
--- a/engine/SCons/Tool/GettextCommon.py
+++ b/engine/SCons/Tool/GettextCommon.py
@@ -24,7 +24,7 @@ Used by several tools of `gettext` toolset.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/GettextCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/GettextCommon.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Warnings
 import re
@@ -306,23 +306,6 @@ class RPaths(object):
        - Tuple of strings, which represent paths relative to current working
          directory (for given environment).
     """
-    # os.path.relpath is available only on python >= 2.6. We use our own
-    # implementation. It's taken from BareNecessities package:
-    #   http://jimmyg.org/work/code/barenecessities/index.html
-    from posixpath import curdir
-    def relpath(path, start=curdir):
-        import posixpath
-        """Return a relative version of a path"""
-        if not path:
-           raise ValueError("no path specified")
-        start_list = posixpath.abspath(start).split(posixpath.sep)
-        path_list = posixpath.abspath(path).split(posixpath.sep)
-        # Work out how much of the filepath is shared by start and path.
-        i = len(posixpath.commonprefix([start_list, path_list]))
-        rel_list = [posixpath.pardir] * (len(start_list)-i) + path_list[i:]
-        if not rel_list:
-           return posixpath.curdir
-        return posixpath.join(*rel_list)
     import os 
     import SCons.Node.FS
     rpaths = ()
@@ -330,7 +313,7 @@ class RPaths(object):
     for node in nodes:
       rpath = None
       if isinstance(node, SCons.Node.FS.Base):
-        rpath = relpath(node.get_abspath(), cwd)
+        rpath = os.path.relpath(node.get_abspath(), cwd)
       # FIXME: Other types possible here?
       if rpath is not None:
         rpaths += (rpath,)
diff --git a/engine/SCons/Tool/JavaCommon.py b/engine/SCons/Tool/JavaCommon.py
index 8b1e48e..0c14995 100644
--- a/engine/SCons/Tool/JavaCommon.py
+++ b/engine/SCons/Tool/JavaCommon.py
@@ -27,7 +27,7 @@ Stuff for processing Java.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/JavaCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/JavaCommon.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/MSCommon/__init__.py b/engine/SCons/Tool/MSCommon/__init__.py
index 90cb0bc..6340a30 100644
--- a/engine/SCons/Tool/MSCommon/__init__.py
+++ b/engine/SCons/Tool/MSCommon/__init__.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """
 Common functions for Microsoft Visual Studio and Visual C/C++.
diff --git a/engine/SCons/Tool/MSCommon/arch.py b/engine/SCons/Tool/MSCommon/arch.py
index 5bc7ea5..8047215 100644
--- a/engine/SCons/Tool/MSCommon/arch.py
+++ b/engine/SCons/Tool/MSCommon/arch.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/arch.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/arch.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Module to define supported Windows chip architectures.
 """
diff --git a/engine/SCons/Tool/MSCommon/common.py b/engine/SCons/Tool/MSCommon/common.py
index 60d7d40..a7bc407 100644
--- a/engine/SCons/Tool/MSCommon/common.py
+++ b/engine/SCons/Tool/MSCommon/common.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/common.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/common.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """
 Common helper functions for working with the Microsoft tool chain.
@@ -84,8 +84,8 @@ def is_win64():
     return _is_win64
 
 
-def read_reg(value):
-    return SCons.Util.RegGetValue(SCons.Util.HKEY_LOCAL_MACHINE, value)[0]
+def read_reg(value, hkroot=SCons.Util.HKEY_LOCAL_MACHINE):
+    return SCons.Util.RegGetValue(hkroot, value)[0]
 
 def has_reg(value):
     """Return True if the given key exists in HKEY_LOCAL_MACHINE, False
diff --git a/engine/SCons/Tool/MSCommon/netframework.py b/engine/SCons/Tool/MSCommon/netframework.py
index 0606e27..6062e11 100644
--- a/engine/SCons/Tool/MSCommon/netframework.py
+++ b/engine/SCons/Tool/MSCommon/netframework.py
@@ -20,7 +20,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/netframework.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/netframework.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """
 """
diff --git a/engine/SCons/Tool/MSCommon/sdk.py b/engine/SCons/Tool/MSCommon/sdk.py
index 537f367..1b605b9 100644
--- a/engine/SCons/Tool/MSCommon/sdk.py
+++ b/engine/SCons/Tool/MSCommon/sdk.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/sdk.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/sdk.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Module to detect the Platform/Windows SDK
 
diff --git a/engine/SCons/Tool/MSCommon/vc.py b/engine/SCons/Tool/MSCommon/vc.py
index 02a32a0..7f12408 100644
--- a/engine/SCons/Tool/MSCommon/vc.py
+++ b/engine/SCons/Tool/MSCommon/vc.py
@@ -30,11 +30,12 @@
 #   * test on 64 bits XP +  VS 2005 (and VS 6 if possible)
 #   * SDK
 #   * Assembly
-__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Module for Visual C/C++ detection and configuration.
 """
 import SCons.compat
+import SCons.Util
 
 import os
 import platform
@@ -137,36 +138,50 @@ def get_host_target(env):
 _VCVER = ["14.0", "14.0Exp", "12.0", "12.0Exp", "11.0", "11.0Exp", "10.0", "10.0Exp", "9.0", "9.0Exp","8.0", "8.0Exp","7.1", "7.0", "6.0"]
 
 _VCVER_TO_PRODUCT_DIR = {
-        '14.0' : [
-            r'Microsoft\VisualStudio\14.0\Setup\VC\ProductDir'],
-        '14.0Exp' : [
-            r'Microsoft\VCExpress\14.0\Setup\VC\ProductDir'],
-        '12.0' : [
-            r'Microsoft\VisualStudio\12.0\Setup\VC\ProductDir'],
-        '12.0Exp' : [
-            r'Microsoft\VCExpress\12.0\Setup\VC\ProductDir'],
-        '11.0': [
-            r'Microsoft\VisualStudio\11.0\Setup\VC\ProductDir'],
-        '11.0Exp' : [
-            r'Microsoft\VCExpress\11.0\Setup\VC\ProductDir'],
-        '10.0': [
-            r'Microsoft\VisualStudio\10.0\Setup\VC\ProductDir'],
-        '10.0Exp' : [
-            r'Microsoft\VCExpress\10.0\Setup\VC\ProductDir'],
-        '9.0': [
-            r'Microsoft\VisualStudio\9.0\Setup\VC\ProductDir'],
-        '9.0Exp' : [
-            r'Microsoft\VCExpress\9.0\Setup\VC\ProductDir'],
-        '8.0': [
-            r'Microsoft\VisualStudio\8.0\Setup\VC\ProductDir'],
-        '8.0Exp': [
-            r'Microsoft\VCExpress\8.0\Setup\VC\ProductDir'],
-        '7.1': [
-            r'Microsoft\VisualStudio\7.1\Setup\VC\ProductDir'],
-        '7.0': [
-            r'Microsoft\VisualStudio\7.0\Setup\VC\ProductDir'],
-        '6.0': [
-            r'Microsoft\VisualStudio\6.0\Setup\Microsoft Visual C++\ProductDir']
+    '14.0' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\14.0\Setup\VC\ProductDir')],
+    '14.0Exp' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VCExpress\14.0\Setup\VC\ProductDir')],
+    '12.0' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\12.0\Setup\VC\ProductDir'),
+        ],
+    '12.0Exp' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VCExpress\12.0\Setup\VC\ProductDir'),
+        ],
+    '11.0': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\11.0\Setup\VC\ProductDir'),
+        ],
+    '11.0Exp' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VCExpress\11.0\Setup\VC\ProductDir'),
+        ],
+    '10.0': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\10.0\Setup\VC\ProductDir'),
+        ],
+    '10.0Exp' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VCExpress\10.0\Setup\VC\ProductDir'),
+        ],
+    '9.0': [
+        (SCons.Util.HKEY_CURRENT_USER, r'Microsoft\DevDiv\VCForPython\9.0\installdir',),
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\9.0\Setup\VC\ProductDir',),
+        ],
+    '9.0Exp' : [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VCExpress\9.0\Setup\VC\ProductDir'),
+        ],
+    '8.0': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\8.0\Setup\VC\ProductDir'),
+        ],
+    '8.0Exp': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VCExpress\8.0\Setup\VC\ProductDir'),
+        ],
+    '7.1': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\7.1\Setup\VC\ProductDir'),
+        ],
+    '7.0': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\7.0\Setup\VC\ProductDir'),
+        ],
+    '6.0': [
+        (SCons.Util.HKEY_LOCAL_MACHINE, r'Microsoft\VisualStudio\6.0\Setup\Microsoft Visual C++\ProductDir'),
+        ]
 }
         
 def msvc_version_to_maj_min(msvc_version):
@@ -216,18 +231,25 @@ def find_vc_pdir(msvc_version):
     If for some reason the requested version could not be found, an
     exception which inherits from VisualCException will be raised."""
     root = 'Software\\'
-    if common.is_win64():
-        root = root + 'Wow6432Node\\'
     try:
         hkeys = _VCVER_TO_PRODUCT_DIR[msvc_version]
     except KeyError:
         debug("Unknown version of MSVC: %s" % msvc_version)
         raise UnsupportedVersion("Unknown version %s" % msvc_version)
 
-    for key in hkeys:
-        key = root + key
+    for hkroot, key in hkeys:
         try:
-            comps = common.read_reg(key)
+            comps = None
+            if common.is_win64():
+                try:
+                    # ordinally at win64, try Wow6432Node first.
+                    comps = common.read_reg(root + 'Wow6432Node\\' + key, hkroot)
+                except WindowsError, e:
+                    # at Microsoft Visual Studio for Python 2.7, value is not in Wow6432Node
+                    pass
+            if not comps:
+                # not Win64, or Microsoft Visual Studio for Python 2.7
+                comps = common.read_reg(root + key, hkroot)
         except WindowsError, e:
             debug('find_vc_dir(): no VC registry key %s' % repr(key))
         else:
diff --git a/engine/SCons/Tool/MSCommon/vs.py b/engine/SCons/Tool/MSCommon/vs.py
index 619cbe5..86cd3a4 100644
--- a/engine/SCons/Tool/MSCommon/vs.py
+++ b/engine/SCons/Tool/MSCommon/vs.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/MSCommon/vs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/MSCommon/vs.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """Module to detect Visual Studio and/or Visual C/C++
 """
diff --git a/engine/SCons/Tool/Perforce.py b/engine/SCons/Tool/Perforce.py
index ddff25f..409c7be 100644
--- a/engine/SCons/Tool/Perforce.py
+++ b/engine/SCons/Tool/Perforce.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/Perforce.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/Perforce.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 
diff --git a/engine/SCons/Tool/PharLapCommon.py b/engine/SCons/Tool/PharLapCommon.py
index 576dea1..46acb2c 100644
--- a/engine/SCons/Tool/PharLapCommon.py
+++ b/engine/SCons/Tool/PharLapCommon.py
@@ -29,7 +29,7 @@ Phar Lap ETS tool chain.  Right now, this is linkloc and
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/PharLapCommon.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/PharLapCommon.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/RCS.py b/engine/SCons/Tool/RCS.py
index d63bcd4..177e828 100644
--- a/engine/SCons/Tool/RCS.py
+++ b/engine/SCons/Tool/RCS.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/RCS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/RCS.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/SCCS.py b/engine/SCons/Tool/SCCS.py
index 76f69e7..772c889 100644
--- a/engine/SCons/Tool/SCCS.py
+++ b/engine/SCons/Tool/SCCS.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/SCCS.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/SCCS.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/Subversion.py b/engine/SCons/Tool/Subversion.py
index 85470b1..cfcf7e7 100644
--- a/engine/SCons/Tool/Subversion.py
+++ b/engine/SCons/Tool/Subversion.py
@@ -29,7 +29,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/Subversion.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/Subversion.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/__init__.py b/engine/SCons/Tool/__init__.py
index bb9729a..ac24134 100644
--- a/engine/SCons/Tool/__init__.py
+++ b/engine/SCons/Tool/__init__.py
@@ -35,7 +35,7 @@ tool definition.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import imp
 import sys
@@ -236,150 +236,436 @@ def createStaticLibBuilder(env):
 
     return static_lib
 
-def VersionShLibLinkNames(version, libname, env):
-    """Generate names of symlinks to the versioned shared library"""
+def _call_linker_cb(env, callback, args, result = None):
+    """Returns the result of env['LINKCALLBACKS'][callback](*args)
+    if env['LINKCALLBACKS'] is a dictionary and env['LINKCALLBACKS'][callback]
+    is callable. If these conditions are not met, return the value provided as
+    the *result* argument. This function is mainly used for generating library
+    info such as versioned suffixes, symlink maps, sonames etc. by delegating
+    the core job to callbacks configured by current linker tool"""
+
     Verbose = False
-    platform = env.subst('$PLATFORM')
-    shlib_suffix = env.subst('$SHLIBSUFFIX')
-    shlink_flags = SCons.Util.CLVar(env.subst('$SHLINKFLAGS'))
-
-    linknames = []
-    if version.count(".") != 2:
-        # We need a version string of the form x.y.z to proceed
-        # Several changes need to be made to support versions like x.y
-        raise ValueError
-
-    if platform == 'darwin':
-        # For libfoo.x.y.z.dylib, linknames libfoo.so
-        suffix_re = re.escape('.' + version + shlib_suffix)
-        linkname = re.sub(suffix_re, shlib_suffix, libname)
+
+    if Verbose:
+        print '_call_linker_cb: args=%r' % args
+        print '_call_linker_cb: callback=%r' % callback
+    
+    try:
+        cbfun = env['LINKCALLBACKS'][callback]
+    except (KeyError, TypeError):
         if Verbose:
-            print "VersionShLibLinkNames: linkname = ",linkname
-        linknames.append(linkname)
-    elif platform == 'posix' or platform == 'sunos':
-        if sys.platform.startswith('openbsd'):
-            # OpenBSD uses x.y shared library versioning numbering convention
-            # and doesn't use symlinks to backwards-compatible libraries
-            return []
-        # For libfoo.so.x.y.z, linknames libfoo.so libfoo.so.x.y libfoo.so.x
-        suffix_re = re.escape(shlib_suffix + '.' + version)
-        # First linkname has no version number
-        linkname = re.sub(suffix_re, shlib_suffix, libname)
+            print '_call_linker_cb: env["LINKCALLBACKS"][%r] not found or can not be used' % callback
+        pass
+    else:
         if Verbose:
-            print "VersionShLibLinkNames: linkname = ",linkname
-        linknames.append(linkname)
-        versionparts = version.split('.')
-        major_name = linkname + "." + versionparts[0]
-        minor_name = major_name + "." + versionparts[1]
-        #Only add link for major_name
-        #for linkname in [major_name, minor_name]:
-        for linkname in [major_name, ]:
+            print '_call_linker_cb: env["LINKCALLBACKS"][%r] found' % callback
+            print '_call_linker_cb: env["LINKCALLBACKS"][%r]=%r' % (callback, cbfun)
+        if(callable(cbfun)):
             if Verbose:
-                print "VersionShLibLinkNames: linkname ",linkname, ", target ",libname
-            linknames.append(linkname)
-    # note: no Windows case here (win32 or cygwin);
-    # MSVC doesn't support this type of versioned shared libs.
-    # (could probably do something for MinGW though)
-    return linknames
-
-def VersionedSharedLibrary(target = None, source= None, env=None):
-    """Build a shared library. If the environment has SHLIBVERSION
-defined make a versioned shared library and create the appropriate
-symlinks for the platform we are on"""
-    Verbose = False
-    try:
-        version = env.subst('$SHLIBVERSION')
-    except KeyError:
-        version = None
+                print '_call_linker_cb: env["LINKCALLBACKS"][%r] is callable' % callback
+            result = cbfun(env, *args)
+    return result
 
-    # libname includes the version number if one was given
-    libname = getattr(target[0].attributes, 'shlibname', target[0].name)
-    platform = env.subst('$PLATFORM')
-    shlib_suffix = env.subst('$SHLIBSUFFIX')
-    shlink_flags = SCons.Util.CLVar(env.subst('$SHLINKFLAGS'))
-    if Verbose:
-        print "VersionShLib: libname      = ",libname
-        print "VersionShLib: platform     = ",platform
-        print "VersionShLib: shlib_suffix = ",shlib_suffix
-        print "VersionShLib: target = ",str(target[0])
-
-    if version:
-        # set the shared library link flags
-        if platform == 'posix':
-            shlink_flags += [ '-Wl,-Bsymbolic' ]
-            # OpenBSD doesn't usually use SONAME for libraries
-            if not sys.platform.startswith('openbsd'):
-                # continue setup of shlink flags for all other POSIX systems
-                suffix_re = re.escape(shlib_suffix + '.' + version)
-                (major, age, revision) = version.split(".")
-                # soname will have only the major version number in it
-                soname = re.sub(suffix_re, shlib_suffix, libname) + '.' + major
-                shlink_flags += [ '-Wl,-soname=%s' % soname ]
-                if Verbose:
-                    print " soname ",soname,", shlink_flags ",shlink_flags
-        elif platform == 'sunos':
-            suffix_re = re.escape(shlib_suffix + '.' + version)
-            (major, age, revision) = version.split(".")
-            soname = re.sub(suffix_re, shlib_suffix, libname) + '.' + major
-            shlink_flags += [ '-h', soname ]
-        elif platform == 'cygwin':
-            shlink_flags += [ '-Wl,-Bsymbolic',
-                              '-Wl,--out-implib,${TARGET.base}.a' ]
-        elif platform == 'darwin':
-            shlink_flags += [ '-current_version', '%s' % version,
-                              '-compatibility_version', '%s' % version,
-                              '-undefined', 'dynamic_lookup' ]
+def _call_env_subst(env, string, *args, **kw):
+    kw2 = {}
+    for k in ('raw', 'target', 'source', 'conv', 'executor'):
+        try: kw2[k] = kw[k]
+        except KeyError: pass
+    return env.subst(string, *args, **kw2)
+
+class _ShLibInfoSupport(object):
+    def get_libtype(self):
+        return 'ShLib'
+    def get_lib_prefix(self, env, *args, **kw):
+        return _call_env_subst(env,'$SHLIBPREFIX', *args, **kw)
+    def get_lib_suffix(self, env, *args, **kw):
+        return _call_env_subst(env,'$SHLIBSUFFIX', *args, **kw)
+    def get_lib_version(self, env, *args, **kw):
+        return _call_env_subst(env,'$SHLIBVERSION', *args, **kw)
+    def get_lib_noversionsymlinks(self, env, *args, **kw):
+        return _call_env_subst(env,'$SHLIBNOVERSIONSYMLINKS', *args, **kw)
+
+class _LdModInfoSupport(object):
+    def get_libtype(self):
+        return 'LdMod'
+    def get_lib_prefix(self, env, *args, **kw):
+        return _call_env_subst(env,'$LDMODULEPREFIX', *args, **kw)
+    def get_lib_suffix(self, env, *args, **kw):
+        return _call_env_subst(env,'$LDMODULESUFFIX', *args, **kw)
+    def get_lib_version(self, env, *args, **kw):
+        return _call_env_subst(env,'$LDMODULEVERSION', *args, **kw)
+    def get_lib_noversionsymlinks(self, env, *args, **kw):
+        return _call_env_subst(env,'$LDMODULENOVERSIONSYMLINKS', *args, **kw)
+
+class _ImpLibInfoSupport(object):
+    def get_libtype(self):
+        return 'ImpLib'
+    def get_lib_prefix(self, env, *args, **kw):
+        return _call_env_subst(env,'$IMPLIBPREFIX', *args, **kw)
+    def get_lib_suffix(self, env, *args, **kw):
+        return _call_env_subst(env,'$IMPLIBSUFFIX', *args, **kw)
+    def get_lib_version(self, env, *args, **kw):
+        version = _call_env_subst(env,'$IMPLIBVERSION', *args, **kw)
+        if not version:
+            try: lt = kw['implib_libtype']
+            except KeyError: pass
+            else:
+                if lt == 'ShLib':
+                    version = _call_env_subst(env,'$SHLIBVERSION', *args, **kw)
+                elif lt == 'LdMod':
+                    version = _call_env_subst(env,'$LDMODULEVERSION', *args, **kw)
+        return version
+    def get_lib_noversionsymlinks(self, env, *args, **kw):
+        disable = None
+        try: env['IMPLIBNOVERSIONSYMLINKS']
+        except KeyError:
+            try: lt = kw['implib_libtype']
+            except KeyError: pass
+            else:
+                if lt == 'ShLib':
+                    disable = _call_env_subst(env,'$SHLIBNOVERSIONSYMLINKS', *args, **kw)
+                elif lt == 'LdMod':
+                    disable = _call_env_subst(env,'$LDMODULENOVERSIONSYMLINKS', *args, **kw)
+        else:
+            disable = _call_env_subst(env,'$IMPLIBNOVERSIONSYMLINKS', *args, **kw)
+        return disable
+
+class _LibInfoGeneratorBase(object):
+    """Generator base class for library-related info such as suffixes for
+    versioned libraries, symlink maps, sonames etc. It handles commonities
+    of SharedLibrary and LoadableModule
+    """
+    _support_classes = { 'ShLib'  : _ShLibInfoSupport,
+                         'LdMod'  : _LdModInfoSupport,
+                         'ImpLib' : _ImpLibInfoSupport }
+    def __init__(self, libtype, infoname):
+        self.set_libtype(libtype)
+        self.set_infoname(infoname)
+
+    def set_libtype(self, libtype):
+        try:
+            support_class = self._support_classes[libtype]
+        except KeyError:
+            raise ValueError('unsupported libtype %r' % libtype)
+        self._support = support_class()
+
+    def get_libtype(self):
+        return self._support.get_libtype()
+
+    def set_infoname(self, infoname):
+        self.infoname = infoname
+
+    def get_infoname(self):
+        return self.infoname
+
+    def get_lib_prefix(self, env, *args, **kw):
+        return self._support.get_lib_prefix(env,*args,**kw)
+
+    def get_lib_suffix(self, env, *args, **kw):
+        return self._support.get_lib_suffix(env,*args,**kw)
+
+    def get_lib_version(self, env, *args, **kw):
+        return self._support.get_lib_version(env,*args,**kw)
+
+    def get_lib_noversionsymlinks(self, env, *args, **kw):
+        return self._support.get_lib_noversionsymlinks(env,*args,**kw)
+
+    # Returns name of generator linker callback that shall be used to generate
+    # our info for a versioned library. For example, if our libtype is 'ShLib'
+    # and infoname is 'Prefix', it would return 'VersionedShLibPrefix'.
+    def get_versioned_lib_info_generator(self, **kw):
+        try: libtype = kw['generator_libtype']
+        except KeyError: libtype = self.get_libtype()
+        infoname = self.get_infoname()
+        return 'Versioned%s%s' % (libtype, infoname)
+
+    def generate_versioned_lib_info(self, env, args, result = None, **kw):
+        callback = self.get_versioned_lib_info_generator(**kw)
+        return _call_linker_cb(env, callback, args, result) 
+
+class _LibPrefixGenerator(_LibInfoGeneratorBase):
+    """Library prefix generator, used as target_prefix in SharedLibrary and
+    LoadableModule builders"""
+    def __init__(self, libtype):
+        super(_LibPrefixGenerator, self).__init__(libtype, 'Prefix')
+
+    def __call__(self, env, sources = None, **kw):
+        Verbose = False
+
+        if sources and 'source' not in kw:
+            kw2 = kw.copy()
+            kw2['source'] = sources
+        else:
+            kw2 = kw
+
+        prefix = self.get_lib_prefix(env,**kw2)
         if Verbose:
-            print "VersionShLib: shlink_flags = ",shlink_flags
-        envlink = env.Clone()
-        envlink['SHLINKFLAGS'] = shlink_flags
-    else:
-        envlink = env
+            print "_LibPrefixGenerator: input prefix=%r" % prefix
+
+        version = self.get_lib_version(env, **kw2)
+        if Verbose:
+            print "_LibPrefixGenerator: version=%r" % version
 
-    result = SCons.Defaults.ShLinkAction(target, source, envlink)
+        if version:
+            prefix = self.generate_versioned_lib_info(env, [prefix, version], prefix, **kw2)
 
-    if version:
-        # here we need the full pathname so the links end up in the right directory
-        libname = getattr(target[0].attributes, 'shlibpath', target[0].get_internal_path())
         if Verbose:
-            print "VerShLib: target lib is = ", libname
-            print "VerShLib: name is = ", target[0].name
-            print "VerShLib: dir is = ", target[0].dir.path
-        linknames = VersionShLibLinkNames(version, libname, env)
+            print "_LibPrefixGenerator: return prefix=%r" % prefix
+        return prefix
+
+ShLibPrefixGenerator  = _LibPrefixGenerator('ShLib')
+LdModPrefixGenerator  = _LibPrefixGenerator('LdMod')
+ImpLibPrefixGenerator = _LibPrefixGenerator('ImpLib')
+
+class _LibSuffixGenerator(_LibInfoGeneratorBase):
+    """Library suffix generator, used as target_suffix in SharedLibrary and
+    LoadableModule builders"""
+    def __init__(self, libtype):
+        super(_LibSuffixGenerator, self).__init__(libtype, 'Suffix')
+
+    def __call__(self, env, sources = None, **kw):
+        Verbose = False
+
+        if sources and 'source' not in kw:
+            kw2 = kw.copy()
+            kw2['source'] = sources
+        else:
+            kw2 = kw
+
+        suffix = self.get_lib_suffix(env, **kw2)
         if Verbose:
-            print "VerShLib: linknames ",linknames
-        # Here we just need the file name w/o path as the target of the link
-        lib_ver = getattr(target[0].attributes, 'shlibname', target[0].name)
-        # make symlink of adjacent names in linknames
-        for count in range(len(linknames)):
-            linkname = linknames[count]
-            if count > 0:
-                try:
-                    os.remove(lastlinkname)
-                except:
-                    pass
-                os.symlink(os.path.basename(linkname),lastlinkname)
-                if Verbose:
-                    print "VerShLib: made sym link of %s -> %s" % (lastlinkname,linkname)
-            lastlinkname = linkname
-        # finish chain of sym links with link to the actual library
-        if len(linknames)>0:
+            print "_LibSuffixGenerator: input suffix=%r" % suffix
+
+        version = self.get_lib_version(env, **kw2)
+        if Verbose:
+            print "_LibSuffixGenerator: version=%r" % version
+
+        if version:
+            suffix = self.generate_versioned_lib_info(env, [suffix, version], suffix, **kw2)
+
+        if Verbose:
+            print "_LibSuffixGenerator: return suffix=%r" % suffix
+        return suffix
+
+ShLibSuffixGenerator  = _LibSuffixGenerator('ShLib')
+LdModSuffixGenerator  = _LibSuffixGenerator('LdMod')
+ImpLibSuffixGenerator = _LibSuffixGenerator('ImpLib')
+
+class _LibSymlinkGenerator(_LibInfoGeneratorBase):
+    """Library symlink map generator. It generates a list of symlinks that
+    should be created by SharedLibrary or LoadableModule builders"""
+    def __init__(self, libtype):
+        super(_LibSymlinkGenerator, self).__init__(libtype, 'Symlinks')
+
+    def __call__(self, env, libnode, **kw):
+        Verbose = False
+
+        if libnode and 'target' not in kw:
+            kw2 = kw.copy()
+            kw2['target'] = libnode
+        else:
+            kw2 = kw
+
+        if Verbose:
+            print "_LibSymLinkGenerator: libnode=%r" % libnode.get_path()
+
+        symlinks = None
+
+        version = self.get_lib_version(env, **kw2)
+        disable = self.get_lib_noversionsymlinks(env, **kw2)
+        if Verbose:
+            print '_LibSymlinkGenerator: version=%r' % version
+            print '_LibSymlinkGenerator: disable=%r' % disable
+
+        if version and not disable:
+            prefix = self.get_lib_prefix(env,**kw2)
+            suffix = self.get_lib_suffix(env,**kw2)
+            symlinks = self.generate_versioned_lib_info(env, [libnode, version, prefix, suffix], **kw2)
+
+        if Verbose:
+            print '_LibSymlinkGenerator: return symlinks=%r' % StringizeLibSymlinks(symlinks)
+        return symlinks
+
+ShLibSymlinkGenerator =  _LibSymlinkGenerator('ShLib')
+LdModSymlinkGenerator =  _LibSymlinkGenerator('LdMod')
+ImpLibSymlinkGenerator = _LibSymlinkGenerator('ImpLib')
+
+class _LibNameGenerator(_LibInfoGeneratorBase):
+    """Generates "unmangled" library name from a library file node.
+    
+    Generally, it's thought to revert modifications done by prefix/suffix
+    generators (_LibPrefixGenerator/_LibSuffixGenerator) used by a library
+    builder. For example, on gnulink the suffix generator used by SharedLibrary
+    builder appends $SHLIBVERSION to $SHLIBSUFFIX producing node name which
+    ends with "$SHLIBSUFFIX.$SHLIBVERSION". Correspondingly, the implementation
+    of _LibNameGenerator replaces "$SHLIBSUFFIX.$SHLIBVERSION" with
+    "$SHLIBSUFFIX" in the node's basename. So that, if $SHLIBSUFFIX is ".so",
+    $SHLIBVERSION is "0.1.2" and the node path is "/foo/bar/libfoo.so.0.1.2",
+    the _LibNameGenerator shall return "libfoo.so". Other link tools may
+    implement it's own way of library name unmangling. 
+    """
+    def __init__(self, libtype):
+        super(_LibNameGenerator, self).__init__(libtype, 'Name')
+
+    def __call__(self, env, libnode, **kw):
+        """Returns "demangled" library name"""
+        Verbose = False
+
+        if libnode and 'target' not in kw:
+            kw2 = kw.copy()
+            kw2['target'] = libnode
+        else:
+            kw2 = kw
+
+        if Verbose:
+            print "_LibNameGenerator: libnode=%r" % libnode.get_path()
+
+        version = self.get_lib_version(env, **kw2)
+        if Verbose:
+            print '_LibNameGenerator: version=%r' % version
+
+        name = None
+        if version:
+            prefix = self.get_lib_prefix(env,**kw2)
+            suffix = self.get_lib_suffix(env,**kw2)
+            name = self.generate_versioned_lib_info(env, [libnode, version, prefix, suffix], **kw2)
+
+        if not name:
+            name = os.path.basename(libnode.get_path())
+
+        if Verbose:
+            print '_LibNameGenerator: return name=%r' % name
+
+        return name
+
+ShLibNameGenerator =  _LibNameGenerator('ShLib')
+LdModNameGenerator =  _LibNameGenerator('LdMod')
+ImpLibNameGenerator = _LibNameGenerator('ImpLib')
+
+class _LibSonameGenerator(_LibInfoGeneratorBase):
+    """Library soname generator. Returns library soname (e.g. libfoo.so.0) for 
+    a given node (e.g. /foo/bar/libfoo.so.0.1.2)"""
+    def __init__(self, libtype):
+        super(_LibSonameGenerator, self).__init__(libtype, 'Soname')
+
+    def __call__(self, env, libnode, **kw):
+        """Returns a SONAME based on a shared library's node path"""
+        Verbose = False
+
+        if libnode and 'target' not in kw:
+            kw2 = kw.copy()
+            kw2['target'] = libnode
+        else:
+            kw2 = kw
+
+        if Verbose:
+            print "_LibSonameGenerator: libnode=%r" % libnode.get_path()
+
+        soname = _call_env_subst(env, '$SONAME', **kw2)
+        if not soname:
+            version = self.get_lib_version(env,**kw2)
+            if Verbose:
+                print "_LibSonameGenerator: version=%r" % version
+            if version:
+                prefix = self.get_lib_prefix(env,**kw2)
+                suffix = self.get_lib_suffix(env,**kw2)
+                soname = self.generate_versioned_lib_info(env, [libnode, version, prefix, suffix], **kw2)
+
+        if not soname:
+            # fallback to library name (as returned by appropriate _LibNameGenerator)
+            soname = _LibNameGenerator(self.get_libtype())(env, libnode)
+            if Verbose:
+                print "_LibSonameGenerator: FALLBACK: soname=%r" % soname
+
+        if Verbose:
+            print "_LibSonameGenerator: return soname=%r" % soname
+
+        return soname
+
+ShLibSonameGenerator =  _LibSonameGenerator('ShLib')
+LdModSonameGenerator =  _LibSonameGenerator('LdMod')
+
+def StringizeLibSymlinks(symlinks):
+    """Converts list with pairs of nodes to list with pairs of node paths
+    (strings). Used mainly for debugging."""
+    if SCons.Util.is_List(symlinks):
+        try:
+            return [ (k.get_path(), v.get_path()) for k,v in symlinks ]
+        except (TypeError, ValueError):
+            return symlinks
+    else:
+        return symlinks
+
+def EmitLibSymlinks(env, symlinks, libnode, **kw):
+    """Used by emitters to handle (shared/versioned) library symlinks"""
+    Verbose = False
+
+    # nodes involved in process... all symlinks + library
+    nodes = list(set([ x for x,y in symlinks ] + [libnode]))
+
+    clean_targets = kw.get('clean_targets', [])
+    if not SCons.Util.is_List(clean_targets):
+        clean_targets = [ clean_targets ]
+      
+    for link, linktgt in symlinks:
+        env.SideEffect(link, linktgt)
+        if(Verbose):
+            print "EmitLibSymlinks: SideEffect(%r,%r)" % (link.get_path(), linktgt.get_path())
+        clean_list = filter(lambda x : x != linktgt, nodes)
+        env.Clean(list(set([linktgt] + clean_targets)), clean_list)
+        if(Verbose):
+            print "EmitLibSymlinks: Clean(%r,%r)" % (linktgt.get_path(), map(lambda x : x.get_path(), clean_list))
+
+def CreateLibSymlinks(env, symlinks):
+    """Physically creates symlinks. The symlinks argument must be a list in
+    form [ (link, linktarget), ... ], where link and linktarget are SCons
+    nodes.
+    """
+    
+    Verbose = False
+    for link, linktgt in symlinks:
+        linktgt = link.get_dir().rel_path(linktgt)
+        link = link.get_path()
+        if(Verbose):
+            print "CreateLibSymlinks: preparing to add symlink %r -> %r" % (link, linktgt)
+        # Delete the (previously created) symlink if exists. Let only symlinks
+        # to be deleted to prevent accidental deletion of source files...
+        if env.fs.islink(link):
+            env.fs.unlink(link)
+            if(Verbose):
+                print "CreateLibSymlinks: removed old symlink %r" % link
+        # If a file or directory exists with the same name as link, an OSError
+        # will be thrown, which should be enough, I think.
+        env.fs.symlink(linktgt, link)
+        if(Verbose):
+            print "CreateLibSymlinks: add symlink %r -> %r" % (link, linktgt)
+    return 0
+
+def LibSymlinksActionFunction(target, source, env):
+    for tgt in target:
+        symlinks = getattr(getattr(tgt,'attributes', None), 'shliblinks', None)
+        if symlinks:
+            CreateLibSymlinks(env, symlinks)
+    return 0
+
+def LibSymlinksStrFun(target, source, env, *args):
+    cmd = None
+    for tgt in target:
+        symlinks = getattr(getattr(tgt,'attributes', None), 'shliblinks', None)
+        if symlinks:
+            if cmd is None: cmd = ""
+            if cmd: cmd += "\n"
+            cmd += "Create symlinks for: %r" % tgt.get_path()
             try:
-                os.remove(lastlinkname)
-            except:
+                linkstr = ', '.join([ "%r->%r" %(k,v) for k,v in StringizeLibSymlinks(symlinks)])
+            except (KeyError, ValueError):
                 pass
-            os.symlink(lib_ver,lastlinkname)
-            if Verbose:
-                print "VerShLib: made sym link of %s -> %s" % (linkname, lib_ver)
-    return result
+            else:
+                cmd += ": %s" % linkstr
+    return cmd
+    
 
-# Fix http://scons.tigris.org/issues/show_bug.cgi?id=2903 :
-# Ensure we still depend on SCons.Defaults.ShLinkAction command line which is $SHLINKCOM.
-# This was tricky because we don't want changing LIBPATH to cause a rebuild, but
-# changing other link args should.  LIBPATH has $( ... $) around it but until this
-# fix, when the varlist was added to the build sig those ignored parts weren't getting
-# ignored.
-ShLibAction = SCons.Action.Action(VersionedSharedLibrary, None, varlist=['SHLINKCOM'])
+LibSymlinksAction = SCons.Action.Action(LibSymlinksActionFunction, LibSymlinksStrFun)
 
 def createSharedLibBuilder(env):
     """This is a utility function that creates the SharedLibrary
@@ -393,11 +679,12 @@ def createSharedLibBuilder(env):
     except KeyError:
         import SCons.Defaults
         action_list = [ SCons.Defaults.SharedCheck,
-                        ShLibAction ]
+                        SCons.Defaults.ShLinkAction,
+                        LibSymlinksAction ]
         shared_lib = SCons.Builder.Builder(action = action_list,
                                            emitter = "$SHLIBEMITTER",
-                                           prefix = '$SHLIBPREFIX',
-                                           suffix = '$SHLIBSUFFIX',
+                                           prefix = ShLibPrefixGenerator,
+                                           suffix = ShLibSuffixGenerator,
                                            target_scanner = ProgramScanner,
                                            src_suffix = '$SHOBJSUFFIX',
                                            src_builder = 'SharedObject')
@@ -417,11 +704,12 @@ def createLoadableModuleBuilder(env):
     except KeyError:
         import SCons.Defaults
         action_list = [ SCons.Defaults.SharedCheck,
-                        SCons.Defaults.LdModuleLinkAction ]
+                        SCons.Defaults.LdModuleLinkAction,
+                        LibSymlinksAction ]
         ld_module = SCons.Builder.Builder(action = action_list,
                                           emitter = "$LDMODULEEMITTER",
-                                          prefix = '$LDMODULEPREFIX',
-                                          suffix = '$LDMODULESUFFIX',
+                                          prefix = LdModPrefixGenerator,
+                                          suffix = LdModSuffixGenerator,
                                           target_scanner = ProgramScanner,
                                           src_suffix = '$SHOBJSUFFIX',
                                           src_builder = 'SharedObject')
diff --git a/engine/SCons/Tool/aixc++.py b/engine/SCons/Tool/aixc++.py
index 864fcdf..a3fa102 100644
--- a/engine/SCons/Tool/aixc++.py
+++ b/engine/SCons/Tool/aixc++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixc++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixc++.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/aixcc.py b/engine/SCons/Tool/aixcc.py
index 02e0649..8c7d71b 100644
--- a/engine/SCons/Tool/aixcc.py
+++ b/engine/SCons/Tool/aixcc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixcc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/aixf77.py b/engine/SCons/Tool/aixf77.py
index 5327cf7..7603a4a 100644
--- a/engine/SCons/Tool/aixf77.py
+++ b/engine/SCons/Tool/aixf77.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixf77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixf77.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/aixlink.py b/engine/SCons/Tool/aixlink.py
index 7ad9cc6..2e6e652 100644
--- a/engine/SCons/Tool/aixlink.py
+++ b/engine/SCons/Tool/aixlink.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/aixlink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/aixlink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/applelink.py b/engine/SCons/Tool/applelink.py
index 9ef1b75..e48689c 100644
--- a/engine/SCons/Tool/applelink.py
+++ b/engine/SCons/Tool/applelink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/applelink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/applelink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/ar.py b/engine/SCons/Tool/ar.py
index 2d7f7b9..ca0dc24 100644
--- a/engine/SCons/Tool/ar.py
+++ b/engine/SCons/Tool/ar.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ar.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/as.py b/engine/SCons/Tool/as.py
index 6c7304f..1b122d0 100644
--- a/engine/SCons/Tool/as.py
+++ b/engine/SCons/Tool/as.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/as.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/as.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/bcc32.py b/engine/SCons/Tool/bcc32.py
index a8295a3..15e2122 100644
--- a/engine/SCons/Tool/bcc32.py
+++ b/engine/SCons/Tool/bcc32.py
@@ -27,7 +27,7 @@ XXX
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/bcc32.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/bcc32.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/c++.py b/engine/SCons/Tool/c++.py
index 580bf9c..00630fe 100644
--- a/engine/SCons/Tool/c++.py
+++ b/engine/SCons/Tool/c++.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/c++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/c++.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/cc.py b/engine/SCons/Tool/cc.py
index 7332ad0..c34dad2 100644
--- a/engine/SCons/Tool/cc.py
+++ b/engine/SCons/Tool/cc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/cc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/cc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Tool
 import SCons.Defaults
diff --git a/engine/SCons/Tool/cvf.py b/engine/SCons/Tool/cvf.py
index 89ac9fb..51c137f 100644
--- a/engine/SCons/Tool/cvf.py
+++ b/engine/SCons/Tool/cvf.py
@@ -27,7 +27,7 @@ Tool-specific initialization for the Compaq Visual Fortran compiler.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/cvf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/cvf.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import fortran
 
diff --git a/engine/SCons/Tool/cyglink.py b/engine/SCons/Tool/cyglink.py
index 87716cf..5230910 100644
--- a/engine/SCons/Tool/cyglink.py
+++ b/engine/SCons/Tool/cyglink.py
@@ -7,19 +7,27 @@ It will usually be imported through the generic SCons.Tool.Tool()
 selection method.
 
 """
+import re
+import os
 
 import SCons.Action
 import SCons.Util
+import SCons.Tool
 
 import gnulink
+import link
 
-def shlib_generator(target, source, env, for_signature):
-    cmd = SCons.Util.CLVar(['$SHLINK']) 
+def _lib_generator(target, source, env, for_signature, **kw):
+    try: cmd = kw['cmd']
+    except KeyError: cmd = SCons.Util.CLVar(['$SHLINK']) 
+
+    try: vp = kw['varprefix']
+    except KeyError: vp = 'SHLIB'
 
-    dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
+    dll = env.FindIxes(target, '%sPREFIX' % vp, '%sSUFFIX' % vp)
     if dll: cmd.extend(['-o', dll])
 
-    cmd.extend(['$SHLINKFLAGS', '$__RPATH'])
+    cmd.extend(['$SHLINKFLAGS', '$__%sVERSIONFLAGS' % vp, '$__RPATH'])
 
     implib = env.FindIxes(target, 'IMPLIBPREFIX', 'IMPLIBSUFFIX')
     if implib:
@@ -35,37 +43,141 @@ def shlib_generator(target, source, env, for_signature):
     
     return [cmd]
 
-def shlib_emitter(target, source, env):
-    dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
+
+def shlib_generator(target, source, env, for_signature):
+    return _lib_generator(target, source, env, for_signature,
+                          varprefix='SHLIB',
+                          cmd = SCons.Util.CLVar(['$SHLINK']))
+
+def ldmod_generator(target, source, env, for_signature):
+    return _lib_generator(target, source, env, for_signature,
+                          varprefix='LDMODULE',
+                          cmd = SCons.Util.CLVar(['$LDMODULE']))
+
+def _lib_emitter(target, source, env, **kw):
+    Verbose = False
+
+    if Verbose:
+        print "_lib_emitter: target[0]=%r" % target[0].get_path()
+
+    try: vp = kw['varprefix']
+    except KeyError: vp = 'SHLIB'
+
+    try: libtype = kw['libtype']
+    except KeyError: libtype = 'ShLib'
+        
+    dll = env.FindIxes(target, '%sPREFIX' % vp, '%sSUFFIX' % vp)
     no_import_lib = env.get('no_import_lib', 0)
 
+    if Verbose:
+        print "_lib_emitter: dll=%r" % dll.get_path()
+
     if not dll or len(target) > 1:
-        raise SCons.Errors.UserError("A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX"))
+        raise SCons.Errors.UserError("A shared library should have exactly one target with the suffix: %s" % env.subst("$%sSUFFIX" % vp))
     
     # Remove any "lib" after the prefix
-    pre = env.subst('$SHLIBPREFIX')
+    pre = env.subst('$%sPREFIX' % vp)
     if dll.name[len(pre):len(pre)+3] == 'lib':
         dll.name = pre + dll.name[len(pre)+3:]
 
+    if Verbose:
+        print "_lib_emitter: dll.name=%r" % dll.name
+
     orig_target = target
     target = [env.fs.File(dll)]
     target[0].attributes.shared = 1
 
+    if Verbose:
+        print "_lib_emitter: after target=[env.fs.File(dll)]: target[0]=%r" % target[0].get_path()
+
     # Append an import lib target
     if not no_import_lib:
         # Create list of target libraries as strings
         target_strings = env.ReplaceIxes(orig_target[0],
-                                         'SHLIBPREFIX', 'SHLIBSUFFIX',
+                                         '%sPREFIX' % vp, '%sSUFFIX' % vp,
                                          'IMPLIBPREFIX', 'IMPLIBSUFFIX')
+        if Verbose:
+            print "_lib_emitter: target_strings=%r" % target_strings
         
         implib_target = env.fs.File(target_strings)
+        if Verbose:
+            print "_lib_emitter: implib_target=%r" % implib_target.get_path()
         implib_target.attributes.shared = 1
         target.append(implib_target)
 
+    symlinks = SCons.Tool.ImpLibSymlinkGenerator(env, implib_target,
+                                                 implib_libtype=libtype,
+                                                 generator_libtype=libtype+'ImpLib')
+    if Verbose:
+        print "_lib_emitter: implib symlinks=%r" % SCons.Tool.StringizeLibSymlinks(symlinks)
+    if symlinks:
+        SCons.Tool.EmitLibSymlinks(env, symlinks, implib_target, clean_targets = target[0])
+        implib_target.attributes.shliblinks = symlinks
+
     return (target, source)
+
+def shlib_emitter(target, source, env):
+    return _lib_emitter(target, source, env, varprefix='SHLIB', libtype='ShLib')
+
+def ldmod_emitter(target, source, env):
+    return _lib_emitter(target, source, env, varprefix='LDMODULE', libtype='LdMod')
                          
+def _versioned_lib_suffix(env, suffix, version):
+    """Generate versioned shared library suffix from a unversioned one.
+       If suffix='.dll', and version='0.1.2', then it returns '-0-1-2.dll'"""
+    Verbose = False
+    if Verbose:
+        print "_versioned_lib_suffix: suffix= ", suffix
+        print "_versioned_lib_suffix: version= ", version
+    cygversion = re.sub('\.', '-', version)
+    if not suffix.startswith('-' + cygversion):
+        suffix = '-' + cygversion + suffix
+    if Verbose:
+        print "_versioned_lib_suffix: return suffix= ", suffix
+    return suffix
+
+def _versioned_implib_name(env, libnode, version, prefix, suffix, **kw):
+    return link._versioned_lib_name(env, libnode, version, prefix, suffix,
+                                    SCons.Tool.ImpLibPrefixGenerator,
+                                    SCons.Tool.ImpLibSuffixGenerator,
+                                    implib_libtype=kw['libtype'])
+
+def _versioned_implib_symlinks(env, libnode, version, prefix, suffix, **kw):
+    """Generate link names that should be created for a versioned shared lirbrary.
+       Returns a list in the form [ (link, linktarget), ... ]
+    """
+    Verbose = False
+
+    if Verbose:
+        print "_versioned_implib_symlinks: libnode=%r" % libnode.get_path()
+        print "_versioned_implib_symlinks: version=%r" % version
+
+    try: libtype = kw['libtype']
+    except KeyError: libtype = 'ShLib'
+
+
+    linkdir = os.path.dirname(libnode.get_path())
+    if Verbose:
+        print "_versioned_implib_symlinks: linkdir=%r" % linkdir
+
+    name = SCons.Tool.ImpLibNameGenerator(env, libnode,
+                                          implib_libtype=libtype,
+                                          generator_libtype=libtype+'ImpLib')
+    if Verbose:
+        print "_versioned_implib_symlinks: name=%r" % name
+
+    major = version.split('.')[0]
+
+    link0 = env.fs.File(os.path.join(linkdir, name))
+    symlinks = [(link0, libnode)]
+
+    if Verbose:
+        print "_versioned_implib_symlinks: return symlinks=%r" % SCons.Tool.StringizeLibSymlinks(symlinks)
+
+    return symlinks
 
 shlib_action = SCons.Action.Action(shlib_generator, generator=1)
+ldmod_action = SCons.Action.Action(ldmod_generator, generator=1)
 
 def generate(env):
     """Add Builders and construction variables for cyglink to an Environment."""
@@ -74,8 +186,9 @@ def generate(env):
     env['LINKFLAGS']   = SCons.Util.CLVar('-Wl,-no-undefined')
 
     env['SHLINKCOM'] = shlib_action
-    env['LDMODULECOM'] = shlib_action
+    env['LDMODULECOM'] = ldmod_action
     env.Append(SHLIBEMITTER = [shlib_emitter])
+    env.Append(LDMODULEEMITTER = [ldmod_emitter])
 
     env['SHLIBPREFIX']         = 'cyg'
     env['SHLIBSUFFIX']         = '.dll'
@@ -83,6 +196,31 @@ def generate(env):
     env['IMPLIBPREFIX']        = 'lib'
     env['IMPLIBSUFFIX']        = '.dll.a'
 
+    # Variables used by versioned shared libraries
+    env['_SHLIBVERSIONFLAGS']      = '$SHLIBVERSIONFLAGS'
+    env['_LDMODULEVERSIONFLAGS']   = '$LDMODULEVERSIONFLAGS'
+
+    # SHLIBVERSIONFLAGS and LDMODULEVERSIONFLAGS are same as in gnulink...
+
+    # LINKCALLBACKS are NOT inherited from gnulink
+    env['LINKCALLBACKS'] = {
+        'VersionedShLibSuffix'          : _versioned_lib_suffix,
+        'VersionedLdModSuffix'          : _versioned_lib_suffix,
+        'VersionedImpLibSuffix'         : _versioned_lib_suffix,
+        'VersionedShLibName'            : link._versioned_shlib_name,
+        'VersionedLdModName'            : link._versioned_ldmod_name,
+        'VersionedShLibImpLibName'      : lambda *args: _versioned_implib_name(*args, libtype='ShLib'),
+        'VersionedLdModImpLibName'      : lambda *args: _versioned_implib_name(*args, libtype='LdMod'),
+        'VersionedShLibImpLibSymlinks'  : lambda *args: _versioned_implib_symlinks(*args, libtype='ShLib'),
+        'VersionedLdModImpLibSymlinks'  : lambda *args: _versioned_implib_symlinks(*args, libtype='LdMod'),
+    }
+
+    # these variables were set by gnulink but are not used in cyglink
+    try: del env['_SHLIBSONAME']
+    except KeyError: pass
+    try: del env['_LDMODULESONAME']
+    except KeyError: pass
+
 def exists(env):
     return gnulink.exists(env)
 
diff --git a/engine/SCons/Tool/default.py b/engine/SCons/Tool/default.py
index 35e872c..1021213 100644
--- a/engine/SCons/Tool/default.py
+++ b/engine/SCons/Tool/default.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/default.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/default.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Tool
 
diff --git a/engine/SCons/Tool/dmd.py b/engine/SCons/Tool/dmd.py
index 327da15..c556151 100644
--- a/engine/SCons/Tool/dmd.py
+++ b/engine/SCons/Tool/dmd.py
@@ -58,7 +58,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dmd.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dmd.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import subprocess
@@ -114,7 +114,7 @@ def generate(env):
 
     env['DSHLINK'] = '$DC'
     env['DSHLINKFLAGS'] = SCons.Util.CLVar('$DLINKFLAGS -shared -defaultlib=libphobos2.so')
-    env['SHDLINKCOM'] = '$DLINK -of$TARGET $DSHLINKFLAGS $__DRPATH $SOURCES $_DLIBDIRFLAGS $_DLIBFLAGS'
+    env['SHDLINKCOM'] = '$DLINK -of$TARGET $DSHLINKFLAGS $__DSHLIBVERSIONFLAGS $__DRPATH $SOURCES $_DLIBDIRFLAGS $_DLIBFLAGS'
 
     env['DLIBLINKPREFIX'] = '' if env['PLATFORM'] == 'win32' else '-L-l'
     env['DLIBLINKSUFFIX'] = '.lib' if env['PLATFORM'] == 'win32' else ''
@@ -139,6 +139,17 @@ def generate(env):
     env['DRPATHSUFFIX'] = ''
     env['_DRPATH'] = '${_concat(DRPATHPREFIX, RPATH, DRPATHSUFFIX, __env__)}'
 
+    # Support for versioned libraries
+    env['_DSHLIBVERSIONFLAGS'] = '$DSHLIBVERSIONFLAGS -L-soname=$_DSHLIBSONAME'
+    env['_DSHLIBSONAME'] = '${DShLibSonameGenerator(__env__,TARGET)}'
+    # NOTE: this is a quick hack, the soname will only work if there is
+    # c/c++ linker loaded which provides callback for the ShLibSonameGenerator
+    env['DShLibSonameGenerator'] = SCons.Tool.ShLibSonameGenerator
+    # NOTE: this is only for further reference, currently $DSHLIBVERSION does
+    # not work, the user must use $SHLIBVERSION
+    env['DSHLIBVERSION'] = '$SHLIBVERSION'
+    env['DSHLIBVERSIONFLAGS'] = []
+
     SCons.Tool.createStaticLibBuilder(env)
 
 
diff --git a/engine/SCons/Tool/dvi.py b/engine/SCons/Tool/dvi.py
index aba7168..9ad1bee 100644
--- a/engine/SCons/Tool/dvi.py
+++ b/engine/SCons/Tool/dvi.py
@@ -27,7 +27,7 @@ Common DVI Builder definition for various other Tool modules that use it.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dvi.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dvi.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Builder
 import SCons.Tool
diff --git a/engine/SCons/Tool/dvipdf.py b/engine/SCons/Tool/dvipdf.py
index 0a6dde7..9af2598 100644
--- a/engine/SCons/Tool/dvipdf.py
+++ b/engine/SCons/Tool/dvipdf.py
@@ -30,7 +30,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/dvipdf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dvipdf.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/engine/SCons/Tool/dvips.py b/engine/SCons/Tool/dvips.py
index f72f2fe..59a16f4 100644
--- a/engine/SCons/Tool/dvips.py
+++ b/engine/SCons/Tool/dvips.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/dvips.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/dvips.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/f03.py b/engine/SCons/Tool/f03.py
index 77165ad..b84850a 100644
--- a/engine/SCons/Tool/f03.py
+++ b/engine/SCons/Tool/f03.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f03.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f03.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/f77.py b/engine/SCons/Tool/f77.py
index 593c517..b6c138a 100644
--- a/engine/SCons/Tool/f77.py
+++ b/engine/SCons/Tool/f77.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f77.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Scanner.Fortran
diff --git a/engine/SCons/Tool/f90.py b/engine/SCons/Tool/f90.py
index c4a8df3..059f639 100644
--- a/engine/SCons/Tool/f90.py
+++ b/engine/SCons/Tool/f90.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f90.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f90.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Scanner.Fortran
diff --git a/engine/SCons/Tool/f95.py b/engine/SCons/Tool/f95.py
index f361e1d..dffbbda 100644
--- a/engine/SCons/Tool/f95.py
+++ b/engine/SCons/Tool/f95.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/f95.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/f95.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/filesystem.py b/engine/SCons/Tool/filesystem.py
index df57579..c9493e9 100644
--- a/engine/SCons/Tool/filesystem.py
+++ b/engine/SCons/Tool/filesystem.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/filesystem.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/filesystem.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons
 from SCons.Tool.install import copyFunc
diff --git a/engine/SCons/Tool/fortran.py b/engine/SCons/Tool/fortran.py
index 7a51321..43635d8 100644
--- a/engine/SCons/Tool/fortran.py
+++ b/engine/SCons/Tool/fortran.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/fortran.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/fortran.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import re
 
diff --git a/engine/SCons/Tool/g++.py b/engine/SCons/Tool/g++.py
index 8246862..f1a23f1 100644
--- a/engine/SCons/Tool/g++.py
+++ b/engine/SCons/Tool/g++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/g++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/g++.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/g77.py b/engine/SCons/Tool/g77.py
index e09cf16..3e1af3c 100644
--- a/engine/SCons/Tool/g77.py
+++ b/engine/SCons/Tool/g77.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/g77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/g77.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 from SCons.Tool.FortranCommon import add_all_to_env, add_f77_to_env
diff --git a/engine/SCons/Tool/gas.py b/engine/SCons/Tool/gas.py
index f987b95..373a336 100644
--- a/engine/SCons/Tool/gas.py
+++ b/engine/SCons/Tool/gas.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gas.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gas.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 as_module = __import__('as', globals(), locals(), [])
 
diff --git a/engine/SCons/Tool/gcc.py b/engine/SCons/Tool/gcc.py
index d2375c6..06aba58 100644
--- a/engine/SCons/Tool/gcc.py
+++ b/engine/SCons/Tool/gcc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gcc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import cc
 import os
diff --git a/engine/SCons/Tool/gdc.py b/engine/SCons/Tool/gdc.py
index 7a67501..e1d2c9c 100644
--- a/engine/SCons/Tool/gdc.py
+++ b/engine/SCons/Tool/gdc.py
@@ -46,7 +46,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gdc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gdc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Defaults
@@ -97,7 +97,7 @@ def generate(env):
 
     env['DSHLINK'] = '$DC'
     env['DSHLINKFLAGS'] = SCons.Util.CLVar('$DLINKFLAGS -shared')
-    env['SHDLINKCOM'] = '$DLINK -o $TARGET $DSHLINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
+    env['SHDLINKCOM'] = '$DLINK -o $TARGET $DSHLINKFLAGS $__DSHLIBVERSIONFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
 
     env['DLIB'] = 'lib' if env['PLATFORM'] == 'win32' else 'ar cr'
     env['DLIBCOM'] = '$DLIB $_DLIBFLAGS {0}$TARGET $SOURCES $_DLINKLIBFLAGS'.format('-c ' if env['PLATFORM'] == 'win32' else '')
@@ -115,6 +115,17 @@ def generate(env):
     env['RPATHSUFFIX'] = ''
     env['_RPATH'] = '${_concat(RPATHPREFIX, RPATH, RPATHSUFFIX, __env__)}'
 
+    # Support for versioned libraries
+    env['_DSHLIBVERSIONFLAGS'] = '$DSHLIBVERSIONFLAGS -Wl,-soname=$_DSHLIBSONAME'
+    env['_DSHLIBSONAME'] = '${DShLibSonameGenerator(__env__,TARGET)}'
+    # NOTE: this is a quick hack, the soname will only work if there is
+    # c/c++ linker loaded which provides callback for the ShLibSonameGenerator
+    env['DShLibSonameGenerator'] = SCons.Tool.ShLibSonameGenerator
+    # NOTE: this is only for further reference, currently $DSHLIBVERSION does
+    # not work, the user must use $SHLIBVERSION
+    env['DSHLIBVERSION'] = '$SHLIBVERSION'
+    env['DSHLIBVERSIONFLAGS'] = '$SHLIBVERSIONFLAGS'
+
     SCons.Tool.createStaticLibBuilder(env)
 
 
diff --git a/engine/SCons/Tool/gettext.py b/engine/SCons/Tool/gettext.py
index e53ebdb..43f88e9 100644
--- a/engine/SCons/Tool/gettext.py
+++ b/engine/SCons/Tool/gettext.py
@@ -23,7 +23,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/gettext.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gettext.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 #############################################################################
 def generate(env,**kw):
diff --git a/engine/SCons/Tool/gfortran.py b/engine/SCons/Tool/gfortran.py
index 02da302..0538ced 100644
--- a/engine/SCons/Tool/gfortran.py
+++ b/engine/SCons/Tool/gfortran.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gfortran.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gfortran.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/gnulink.py b/engine/SCons/Tool/gnulink.py
index 81c0130..1093303 100644
--- a/engine/SCons/Tool/gnulink.py
+++ b/engine/SCons/Tool/gnulink.py
@@ -31,12 +31,17 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gnulink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gnulink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
+import SCons.Tool
+import os
+import sys
+import re
 
 import link
 
+
 def generate(env):
     """Add Builders and construction variables for gnulink to an Environment."""
     link.generate(env)
@@ -49,6 +54,14 @@ def generate(env):
     env['RPATHPREFIX'] = '-Wl,-rpath='
     env['RPATHSUFFIX'] = ''
     env['_RPATH'] = '${_concat(RPATHPREFIX, RPATH, RPATHSUFFIX, __env__)}'
+
+    # OpenBSD doesn't usually use SONAME for libraries
+    use_soname = not sys.platform.startswith('openbsd')
+    link._setup_versioned_lib_variables(env, tool = 'gnulink', use_soname = use_soname)
+    env['LINKCALLBACKS'] = link._versioned_lib_callbacks()
+
+    # For backward-compatiblity with older SCons versions
+    env['SHLIBVERSIONFLAGS'] = SCons.Util.CLVar('-Wl,-Bsymbolic')
     
 def exists(env):
     # TODO: sync with link.smart_link() to choose a linker
diff --git a/engine/SCons/Tool/gs.py b/engine/SCons/Tool/gs.py
index 3e2eecc..ddb22e6 100644
--- a/engine/SCons/Tool/gs.py
+++ b/engine/SCons/Tool/gs.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/gs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/gs.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/hpc++.py b/engine/SCons/Tool/hpc++.py
index eb23e94..bd2b5f9 100644
--- a/engine/SCons/Tool/hpc++.py
+++ b/engine/SCons/Tool/hpc++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hpc++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/hpc++.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/hpcc.py b/engine/SCons/Tool/hpcc.py
index 827460d..19c22d8 100644
--- a/engine/SCons/Tool/hpcc.py
+++ b/engine/SCons/Tool/hpcc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hpcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/hpcc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/hplink.py b/engine/SCons/Tool/hplink.py
index e3512a2..931f8cf 100644
--- a/engine/SCons/Tool/hplink.py
+++ b/engine/SCons/Tool/hplink.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/hplink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/hplink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/icc.py b/engine/SCons/Tool/icc.py
index d6e3663..3e639ad 100644
--- a/engine/SCons/Tool/icc.py
+++ b/engine/SCons/Tool/icc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/icc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/icc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import cc
 
diff --git a/engine/SCons/Tool/icl.py b/engine/SCons/Tool/icl.py
index 88c6881..bee5bcb 100644
--- a/engine/SCons/Tool/icl.py
+++ b/engine/SCons/Tool/icl.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/icl.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/icl.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Tool.intelc
 
diff --git a/engine/SCons/Tool/ifl.py b/engine/SCons/Tool/ifl.py
index ef5bdd6..8c287fc 100644
--- a/engine/SCons/Tool/ifl.py
+++ b/engine/SCons/Tool/ifl.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ifl.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ifl.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 from SCons.Scanner.Fortran import FortranScan
diff --git a/engine/SCons/Tool/ifort.py b/engine/SCons/Tool/ifort.py
index 275c5c8..3400a89 100644
--- a/engine/SCons/Tool/ifort.py
+++ b/engine/SCons/Tool/ifort.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ifort.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ifort.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 from SCons.Scanner.Fortran import FortranScan
diff --git a/engine/SCons/Tool/ilink.py b/engine/SCons/Tool/ilink.py
index b2c3513..e3828ca 100644
--- a/engine/SCons/Tool/ilink.py
+++ b/engine/SCons/Tool/ilink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ilink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ilink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/ilink32.py b/engine/SCons/Tool/ilink32.py
index a2f1e67..7a63b36 100644
--- a/engine/SCons/Tool/ilink32.py
+++ b/engine/SCons/Tool/ilink32.py
@@ -27,7 +27,7 @@ XXX
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ilink32.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ilink32.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Tool
 import SCons.Tool.bcc32
diff --git a/engine/SCons/Tool/install.py b/engine/SCons/Tool/install.py
index 0b3642c..9ae78fa 100644
--- a/engine/SCons/Tool/install.py
+++ b/engine/SCons/Tool/install.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/install.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/install.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import re
@@ -38,6 +38,7 @@ import shutil
 import stat
 
 import SCons.Action
+import SCons.Tool
 from SCons.Util import make_path_relative
 
 #
@@ -141,98 +142,35 @@ def copyFuncVersionedLib(dest, source, env):
         shutil.copy2(source, dest)
         st = os.stat(source)
         os.chmod(dest, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
-        versionedLibLinks(dest, source, env)
+        installShlibLinks(dest, source, env)
 
     return 0
 
-def versionedLibVersion(dest, source, env):
-    """Check if dest is a version shared library name. Return version, libname, & install_dir if it is."""
+def listShlibLinksToInstall(dest, source, env):
+    install_links = []
+    source = env.arg2nodes(source)
+    dest = env.fs.File(dest)
+    install_dir = dest.get_dir()
+    for src in source:
+        symlinks = getattr(getattr(src,'attributes',None), 'shliblinks', None)
+        if symlinks:
+            for link, linktgt in symlinks:
+                link_base = os.path.basename(link.get_path())
+                linktgt_base  = os.path.basename(linktgt.get_path())
+                install_link = env.fs.File(link_base, install_dir)
+                install_linktgt = env.fs.File(linktgt_base, install_dir)
+                install_links.append((install_link, install_linktgt))
+    return install_links
+
+def installShlibLinks(dest, source, env):
+    """If we are installing a versioned shared library create the required links."""
     Verbose = False
-    platform = env.subst('$PLATFORM')
-    if not (platform == 'posix'  or platform == 'darwin' or platform == 'sunos'):
-        return (None, None, None)
 
-    if (hasattr(source[0], 'attributes') and
-        hasattr(source[0].attributes, 'shlibname')):
-        libname = source[0].attributes.shlibname
-    else:
-        libname = os.path.basename(str(dest))
-    install_dir = os.path.dirname(str(dest))
-    shlib_suffix = env.subst('$SHLIBSUFFIX')
-    # See if the source name is a versioned shared library, get the version number
-    result = False
-    
-    version_re = re.compile("[0-9]+\\.[0-9]+\\.[0-9a-zA-Z]+")
-    version_File = None
-    if platform == 'posix' or platform == 'sunos':
-        # handle unix names
-        versioned_re = re.compile(re.escape(shlib_suffix + '.') + "[0-9]+\\.[0-9]+\\.[0-9a-zA-Z]+")
-        result = versioned_re.findall(libname)
-        if result:
-            version_File = version_re.findall(versioned_re.findall(libname)[-1])[-1]
-    elif platform == 'darwin':
-        # handle OSX names
-        versioned_re = re.compile("\\.[0-9]+\\.[0-9]+\\.[0-9a-zA-Z]+" + re.escape(shlib_suffix) )
-        result = versioned_re.findall(libname)
-        if result:
-            version_File = version_re.findall(versioned_re.findall(libname)[-1])[-1]
-    
+    symlinks = listShlibLinksToInstall(dest, source, env)
     if Verbose:
-        print "install: version_File ", version_File
-    # result is False if we did not find a versioned shared library name, so return and empty list
-    if not result:
-        return (None, libname, install_dir)
-
-    version = None
-    # get version number from the environment
-    try:
-        version = env.subst('$SHLIBVERSION')
-    except KeyError:
-        version = None
-    
-    if version != version_File:
-        #raise SCons.Errors.UserError("SHLIBVERSION '%s' does not match the version # '%s' in the filename" % (version, version_File) )
-        print "SHLIBVERSION '%s' does not match the version # '%s' in the filename, proceeding based on file name" % (version, version_File)
-        version = version_File
-    return (version, libname, install_dir)
-
-def versionedLibLinks(dest, source, env):
-    """If we are installing a versioned shared library create the required links."""
-    Verbose = False
-    linknames = []
-    version, libname, install_dir = versionedLibVersion(dest, source, env)
-
-    if version != None:
-        # libname includes the version number if one was given
-        linknames = SCons.Tool.VersionShLibLinkNames(version,libname,env)
-        if Verbose:
-            print "versionedLibLinks: linknames ",linknames
-        # Here we just need the file name w/o path as the target of the link
-        lib_ver = libname
-        # make symlink of adjacent names in linknames
-        for count in range(len(linknames)):
-            linkname = linknames[count]
-            fulllinkname = os.path.join(install_dir, linkname)
-            if Verbose:
-                print "full link name ",fulllinkname
-            if count > 0:
-                try:
-                    os.remove(lastlinkname)
-                except:
-                    pass
-                os.symlink(os.path.basename(fulllinkname),lastlinkname)
-                if Verbose:
-                    print "versionedLibLinks: made sym link of %s -> %s" % (lastlinkname,os.path.basename(fulllinkname))
-            lastlinkname = fulllinkname
-        # finish chain of sym links with link to the actual library
-        if len(linknames)>0:
-            try:
-                os.remove(lastlinkname)
-            except:
-                pass
-            os.symlink(lib_ver,lastlinkname)
-            if Verbose:
-                print "versionedLibLinks: made sym link of %s -> %s" % (lib_ver,lastlinkname)
+        print 'installShlibLinks: symlinks=%r' % SCons.Tool.StringizeLibSymlinks(symlinks)
+    if symlinks:
+        SCons.Tool.CreateLibSymlinks(env, symlinks)
     return
 
 def installFunc(target, source, env):
@@ -306,22 +244,11 @@ def add_versioned_targets_to_INSTALLED_FILES(target, source, env):
     Verbose = False
     _INSTALLED_FILES.extend(target)
     if Verbose:
-        print "ver lib emitter ",repr(target)
-
-    # see if we have a versioned shared library, if so generate side effects
-    version, libname, install_dir = versionedLibVersion(target[0], source, env)
-    if version != None:
-        # generate list of link names
-        linknames = SCons.Tool.VersionShLibLinkNames(version,libname,env)
-        for linkname in linknames:
-            if Verbose:
-                print "make side effect of %s" % os.path.join(install_dir, linkname)
-            fulllinkname = os.path.join(install_dir, linkname)
-            env.SideEffect(fulllinkname,target[0])
-            env.Clean(target[0],fulllinkname)
-            _INSTALLED_FILES.append(fulllinkname)
-            if Verbose:
-                print "installed list ", _INSTALLED_FILES
+        print "add_versioned_targets_to_INSTALLED_FILES: target=%r" % map(str, target)
+
+    symlinks = listShlibLinksToInstall(target[0], source, env)
+    if symlinks:
+        SCons.Tool.EmitLibSymlinks(env, symlinks, target[0])
         
     _UNIQUE_INSTALLED_FILES = None
     return (target, source)
diff --git a/engine/SCons/Tool/intelc.py b/engine/SCons/Tool/intelc.py
index 256f32e..ebf2534 100644
--- a/engine/SCons/Tool/intelc.py
+++ b/engine/SCons/Tool/intelc.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 from __future__ import division
 
-__revision__ = "src/engine/SCons/Tool/intelc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/intelc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import math, sys, os.path, glob, string, re
 
diff --git a/engine/SCons/Tool/ipkg.py b/engine/SCons/Tool/ipkg.py
index bf2b496..b7f1674 100644
--- a/engine/SCons/Tool/ipkg.py
+++ b/engine/SCons/Tool/ipkg.py
@@ -33,7 +33,7 @@ packages fake_root.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ipkg.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ipkg.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 
diff --git a/engine/SCons/Tool/jar.py b/engine/SCons/Tool/jar.py
index 50d3fc0..8857209 100644
--- a/engine/SCons/Tool/jar.py
+++ b/engine/SCons/Tool/jar.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/jar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/jar.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Subst
 import SCons.Util
diff --git a/engine/SCons/Tool/javac.py b/engine/SCons/Tool/javac.py
index bb57208..bbaa47d 100644
--- a/engine/SCons/Tool/javac.py
+++ b/engine/SCons/Tool/javac.py
@@ -30,7 +30,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/javac.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/javac.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/javah.py b/engine/SCons/Tool/javah.py
index 1d667b9..4c20393 100644
--- a/engine/SCons/Tool/javah.py
+++ b/engine/SCons/Tool/javah.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/javah.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/javah.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/latex.py b/engine/SCons/Tool/latex.py
index 69413cc..e329d3f 100644
--- a/engine/SCons/Tool/latex.py
+++ b/engine/SCons/Tool/latex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/latex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/latex.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Defaults
diff --git a/engine/SCons/Tool/ldc.py b/engine/SCons/Tool/ldc.py
index c1b558f..b37f2d7 100644
--- a/engine/SCons/Tool/ldc.py
+++ b/engine/SCons/Tool/ldc.py
@@ -46,7 +46,7 @@ Lib tool variables:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/ldc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/ldc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import subprocess
@@ -105,7 +105,7 @@ def generate(env):
     # Hack for Fedora the packages of which use the wrong name :-(
     if os.path.exists('/usr/lib64/libphobos-ldc.so') or  os.path.exists('/usr/lib32/libphobos-ldc.so') or os.path.exists('/usr/lib/libphobos-ldc.so') :
         env['DSHLINKFLAGS'] = SCons.Util.CLVar('$DLINKFLAGS -shared -defaultlib=phobos-ldc')
-    env['SHDLINKCOM'] = '$DLINK -of=$TARGET $DSHLINKFLAGS $__DRPATH $SOURCES $_DLIBDIRFLAGS $_DLIBFLAGS'
+    env['SHDLINKCOM'] = '$DLINK -of=$TARGET $DSHLINKFLAGS $__DSHLIBVERSIONFLAGS $__DRPATH $SOURCES $_DLIBDIRFLAGS $_DLIBFLAGS'
 
     env['DLIBLINKPREFIX'] = '' if env['PLATFORM'] == 'win32' else '-L-l'
     env['DLIBLINKSUFFIX'] = '.lib' if env['PLATFORM'] == 'win32' else ''
@@ -131,6 +131,17 @@ def generate(env):
     env['DRPATHSUFFIX'] = ''
     env['_DRPATH'] = '${_concat(DRPATHPREFIX, RPATH, DRPATHSUFFIX, __env__)}'
 
+    # Support for versioned libraries
+    env['_DSHLIBVERSIONFLAGS'] = '$DSHLIBVERSIONFLAGS -L-soname=$_DSHLIBSONAME'
+    env['_DSHLIBSONAME'] = '${DShLibSonameGenerator(__env__,TARGET)}'
+    # NOTE: this is a quick hack, the soname will only work if there is
+    # c/c++ linker loaded which provides callback for the ShLibSonameGenerator
+    env['DShLibSonameGenerator'] = SCons.Tool.ShLibSonameGenerator
+    # NOTE: this is only for further reference, currently $DSHLIBVERSION does
+    # not work, the user must use $SHLIBVERSION
+    env['DSHLIBVERSION'] = '$SHLIBVERSION'
+    env['DSHLIBVERSIONFLAGS'] = []
+
     SCons.Tool.createStaticLibBuilder(env)
 
 
diff --git a/engine/SCons/Tool/lex.py b/engine/SCons/Tool/lex.py
index 9f6557d..9baecb5 100644
--- a/engine/SCons/Tool/lex.py
+++ b/engine/SCons/Tool/lex.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/lex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/lex.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/link.py b/engine/SCons/Tool/link.py
index 6874301..08dce99 100644
--- a/engine/SCons/Tool/link.py
+++ b/engine/SCons/Tool/link.py
@@ -31,11 +31,12 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/link.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/link.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
+import sys
 import re
+import os
 
-import SCons.Defaults
 import SCons.Tool
 import SCons.Util
 import SCons.Warnings
@@ -72,97 +73,205 @@ def smart_link(source, target, env, for_signature):
         return '$CXX'
     return '$CC'
 
-def shlib_emitter(target, source, env):
+def _lib_emitter(target, source, env, **kw):
     Verbose = False
-    platform = env.subst('$PLATFORM')
+    if Verbose:
+        print "_lib_emitter: target[0]=%r" % target[0].get_path()
     for tgt in target:
         tgt.attributes.shared = 1
+    
     try:
-        # target[0] comes in as libtest.so. Add the version extensions
-        version = env.subst('$SHLIBVERSION')
-        if version:
-            version_names = shlib_emitter_names(target, source, env)
-            # mark the target with the shared libraries name, including
-            # the version number
-            target[0].attributes.shlibname = version_names[0]
-            shlib = env.File(version_names[0], directory=target[0].get_dir())
-            target[0].attributes.shlibpath = shlib.get_internal_path()
-            for name in version_names[1:]:
-                env.SideEffect(name, shlib)
-                env.Clean(shlib, name)
-                if Verbose:
-                    print "shlib_emitter: add side effect - ",name
-            env.Clean(shlib, target[0])
-            return ([shlib], source)
+        symlink_generator = kw['symlink_generator']
     except KeyError:
-        version = None
+        pass
+    else:
+        if Verbose:
+            print "_lib_emitter: symlink_generator=%r" % symlink_generator
+        symlinks = symlink_generator(env, target[0])
+        if Verbose:
+            print "_lib_emitter: symlinks=%r" % symlinks 
+
+        if symlinks:
+            SCons.Tool.EmitLibSymlinks(env, symlinks, target[0])
+            target[0].attributes.shliblinks = symlinks
     return (target, source)
 
-def shlib_emitter_names(target, source, env):
-    """Return list of file names that are side effects for a versioned library build. The first name in the list is the new name for the target"""
+def shlib_emitter(target, source, env):
+    return _lib_emitter(target, source, env, symlink_generator = SCons.Tool.ShLibSymlinkGenerator)
+
+def ldmod_emitter(target, source, env):
+    return _lib_emitter(target, source, env, symlink_generator = SCons.Tool.LdModSymlinkGenerator)
+
+# This is generic enough to be included here...
+def _versioned_lib_name(env, libnode, version, prefix, suffix, prefix_generator, suffix_generator, **kw):
+    """For libnode='/optional/dir/libfoo.so.X.Y.Z' it returns 'libfoo.so'"""
     Verbose = False
-    platform = env.subst('$PLATFORM')
-    version_names = []
-    try:
-        # target[0] comes in as libtest.so. Add the version extensions
-        version = env.subst('$SHLIBVERSION')
-        if version.count(".") != 2:
-            # We need a version of the form x.y.z to proceed
-            raise ValueError
-        if version:
-            if platform == 'posix' or platform == 'sunos':
-                versionparts = version.split('.')
-                if hasattr(target[0].attributes, 'shlibname'):
-                    name = target[0].attributes.shlibname
-                else:
-                    name = target[0].name
-                # generate library name with the version number
-                version_name = name + '.' + version
-                if Verbose:
-                    print "shlib_emitter_names: target is ", version_name
-                    print "shlib_emitter_names: side effect: ", name
-                # add version_name to list of names to be a Side effect
-                version_names.append(version_name)
-                if Verbose:
-                    print "shlib_emitter_names: versionparts ",versionparts
-                for ver in versionparts[0:-1]:
-                    name = name + '.' + ver
-                    if Verbose:
-                        print "shlib_emitter_names: side effect: ", name
-                    # add name to list of names to be a Side effect
-                    version_names.append(name)
-            elif platform == 'darwin':
-                shlib_suffix = env.subst('$SHLIBSUFFIX')
-                if hasattr(target[0].attributes, 'shlibname'):
-                    name = target[0].attributes.shlibname
-                else:
-                    name = target[0].name
-                # generate library name with the version number
-                suffix_re = re.escape(shlib_suffix)
-                version_name = re.sub(suffix_re, '.' + version + shlib_suffix, name)
-                if Verbose:
-                    print "shlib_emitter_names: target is ", version_name
-                    print "shlib_emitter_names: side effect: ", name
-                # add version_name to list of names to be a Side effect
-                version_names.append(version_name)
-            elif platform == 'cygwin':
-                shlib_suffix = env.subst('$SHLIBSUFFIX')
-                if hasattr(target[0].attributes, 'shlibname'):
-                    name = target[0].attributes.shlibname
-                else:
-                    name = target[0].name
-                # generate library name with the version number
-                suffix_re = re.escape(shlib_suffix)
-                version_name = re.sub(suffix_re, '-' + re.sub('\.', '-', version) + shlib_suffix, name)
-                if Verbose:
-                    print "shlib_emitter_names: target is ", version_name
-                    print "shlib_emitter_names: side effect: ", name
-                # add version_name to list of names to be a Side effect
-                version_names.append(version_name)
 
-    except KeyError:
-        version = None
-    return version_names
+    if Verbose:
+        print "_versioned_lib_name: libnode=%r" % libnode.get_path()
+        print "_versioned_lib_name: version=%r" % version
+        print "_versioned_lib_name: prefix=%r" % prefix
+        print "_versioned_lib_name: suffix=%r" % suffix
+        print "_versioned_lib_name: suffix_generator=%r" % suffix_generator
+
+    versioned_name = os.path.basename(libnode.get_path())
+    if Verbose:
+        print "_versioned_lib_name: versioned_name=%r" % versioned_name
+
+    versioned_prefix = prefix_generator(env, **kw)
+    versioned_suffix = suffix_generator(env, **kw)
+    if Verbose:
+        print "_versioned_lib_name: versioned_prefix=%r" % versioned_prefix
+        print "_versioned_lib_name: versioned_suffix=%r" % versioned_suffix
+
+    versioned_prefix_re = '^' + re.escape(versioned_prefix)
+    versioned_suffix_re = re.escape(versioned_suffix) + '$'
+    name = re.sub(versioned_prefix_re, prefix, versioned_name)
+    name = re.sub(versioned_suffix_re, suffix, name)
+    if Verbose:
+        print "_versioned_lib_name: name=%r" % name
+    return name
+
+def _versioned_shlib_name(env, libnode, version, prefix, suffix, **kw):
+    pg = SCons.Tool.ShLibPrefixGenerator
+    sg = SCons.Tool.ShLibSuffixGenerator
+    return _versioned_lib_name(env, libnode, version, prefix, suffix, pg, sg, **kw)
+
+def _versioned_ldmod_name(env, libnode, version, prefix, suffix, **kw):
+    pg = SCons.Tool.LdModPrefixGenerator
+    sg = SCons.Tool.LdModSuffixGenerator
+    return _versioned_lib_name(env, libnode, version, prefix, suffix, pg, sg, **kw)
+
+def _versioned_lib_suffix(env, suffix, version):
+    """For suffix='.so' and version='0.1.2' it returns '.so.0.1.2'"""
+    Verbose = False
+    if Verbose:
+        print "_versioned_lib_suffix: suffix=%r" % suffix
+        print "_versioned_lib_suffix: version=%r" % version
+    if not suffix.endswith(version):
+        suffix = suffix + '.' + version
+    if Verbose:
+        print "_versioned_lib_suffix: return suffix=%r" % suffix
+    return suffix
+
+def _versioned_lib_soname(env, libnode, version, prefix, suffix, name_func):
+    """For libnode='/optional/dir/libfoo.so.X.Y.Z' it returns 'libfoo.so.X'"""
+    Verbose = False
+    if Verbose:
+        print "_versioned_lib_soname: version=%r" % version
+    name = name_func(env, libnode, version, prefix, suffix)
+    if Verbose:
+        print "_versioned_lib_soname: name=%r" % name
+    major = version.split('.')[0]
+    soname = name + '.' + major
+    if Verbose:
+        print "_versioned_lib_soname: soname=%r" % soname
+    return soname
+
+def _versioned_shlib_soname(env, libnode, version, prefix, suffix):
+    return _versioned_lib_soname(env, libnode, version, prefix, suffix, _versioned_shlib_name) 
+
+def _versioned_ldmod_soname(env, libnode, version, prefix, suffix):
+    return _versioned_lib_soname(env, libnode, version, prefix, suffix, _versioned_ldmod_name) 
+
+def _versioned_lib_symlinks(env, libnode, version, prefix, suffix, name_func, soname_func):
+    """Generate link names that should be created for a versioned shared lirbrary.
+       Returns a dictionary in the form { linkname : linktarget }
+    """
+    Verbose = False
+
+    if Verbose:
+        print "_versioned_lib_symlinks: libnode=%r" % libnode.get_path()
+        print "_versioned_lib_symlinks: version=%r" % version
+
+    if sys.platform.startswith('openbsd'):
+        # OpenBSD uses x.y shared library versioning numbering convention
+        # and doesn't use symlinks to backwards-compatible libraries
+        if Verbose:
+            print "_versioned_lib_symlinks: return symlinks=%r" % None
+        return None
+
+    linkdir = libnode.get_dir()
+    if Verbose:
+        print "_versioned_lib_symlinks: linkdir=%r" % linkdir.get_path()
+
+    name = name_func(env, libnode, version, prefix, suffix)
+    if Verbose:
+        print "_versioned_lib_symlinks: name=%r" % name
+
+    soname = soname_func(env, libnode, version, prefix, suffix)
+
+    link0 = env.fs.File(soname, linkdir)
+    link1 = env.fs.File(name, linkdir)
+
+    # We create direct symlinks, not daisy-chained.
+    if link0 == libnode:
+        # This enables SHLIBVERSION without periods (e.g. SHLIBVERSION=1)
+        symlinks = [ (link1, libnode) ]
+    else:
+        # This handles usual SHLIBVERSION, i.e. '1.2', '1.2.3', etc.
+        symlinks = [ (link0, libnode), (link1, libnode) ]
+
+    if Verbose:
+        print "_versioned_lib_symlinks: return symlinks=%r" % SCons.Tool.StringizeLibSymlinks(symlinks)
+
+    return symlinks
+
+def _versioned_shlib_symlinks(env, libnode, version, prefix, suffix):
+    nf = _versioned_shlib_name
+    sf = _versioned_shlib_soname
+    return _versioned_lib_symlinks(env, libnode, version, prefix, suffix, nf, sf)
+
+def _versioned_ldmod_symlinks(env, libnode, version, prefix, suffix):
+    nf = _versioned_ldmod_name
+    sf = _versioned_ldmod_soname
+    return _versioned_lib_symlinks(env, libnode, version, prefix, suffix, nf, sf)
+
+def _versioned_lib_callbacks():
+    return {
+        'VersionedShLibSuffix'   : _versioned_lib_suffix,
+        'VersionedLdModSuffix'   : _versioned_lib_suffix,
+        'VersionedShLibSymlinks' : _versioned_shlib_symlinks,
+        'VersionedLdModSymlinks' : _versioned_ldmod_symlinks,
+        'VersionedShLibName'     : _versioned_shlib_name,
+        'VersionedLdModName'     : _versioned_ldmod_name,
+        'VersionedShLibSoname'   : _versioned_shlib_soname,
+        'VersionedLdModSoname'   : _versioned_ldmod_soname,
+    }.copy()
+
+# Setup all variables required by the versioning machinery
+def _setup_versioned_lib_variables(env, **kw):
+
+    tool = None
+    try: tool = kw['tool']
+    except KeyError: pass
+
+    use_soname = False
+    try: use_soname = kw['use_soname'] 
+    except KeyError: pass
+
+    # The $_SHLIBVERSIONFLAGS define extra commandline flags used when
+    # building VERSIONED shared libraries. It's always set, but used only
+    # when VERSIONED library is built (see __SHLIBVERSIONFLAGS in SCons/Defaults.py).
+    if use_soname:
+        # If the linker uses SONAME, then we need this little automata
+        if tool == 'sunlink':
+            env['_SHLIBVERSIONFLAGS'] = '$SHLIBVERSIONFLAGS -h $_SHLIBSONAME'
+            env['_LDMODULEVERSIONFLAGS'] = '$LDMODULEVERSIONFLAGS -h $_LDMODULESONAME'
+        else:
+            env['_SHLIBVERSIONFLAGS'] = '$SHLIBVERSIONFLAGS -Wl,-soname=$_SHLIBSONAME'
+            env['_LDMODULEVERSIONFLAGS'] = '$LDMODULEVERSIONFLAGS -Wl,-soname=$_LDMODULESONAME'
+        env['_SHLIBSONAME'] = '${ShLibSonameGenerator(__env__,TARGET)}'
+        env['_LDMODULESONAME'] = '${LdModSonameGenerator(__env__,TARGET)}'
+        env['ShLibSonameGenerator'] = SCons.Tool.ShLibSonameGenerator
+        env['LdModSonameGenerator'] = SCons.Tool.LdModSonameGenerator
+    else:
+        env['_SHLIBVERSIONFLAGS'] = '$SHLIBVERSIONFLAGS'
+        env['_LDMODULEVERSIONFLAGS'] = '$LDMODULEVERSIONFLAGS'
+
+    # LDOMDULVERSIONFLAGS should always default to $SHLIBVERSIONFLAGS
+    env['LDMODULEVERSIONFLAGS'] = '$SHLIBVERSIONFLAGS'
+
 
 def generate(env):
     """Add Builders and construction variables for gnulink to an Environment."""
@@ -171,7 +280,7 @@ def generate(env):
 
     env['SHLINK']      = '$LINK'
     env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared')
-    env['SHLINKCOM']   = '$SHLINK -o $TARGET $SHLINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
+    env['SHLINKCOM']   = '$SHLINK -o $TARGET $SHLINKFLAGS $__SHLIBVERSIONFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
     # don't set up the emitter, cause AppendUnique will generate a list
     # starting with None :-(
     env.Append(SHLIBEMITTER = [shlib_emitter])
@@ -196,15 +305,13 @@ def generate(env):
     # setting them the same means that LoadableModule works everywhere.
     SCons.Tool.createLoadableModuleBuilder(env)
     env['LDMODULE'] = '$SHLINK'
-    # don't set up the emitter, cause AppendUnique will generate a list
-    # starting with None :-(
-    env.Append(LDMODULEEMITTER='$SHLIBEMITTER')
+    env.Append(LDMODULEEMITTER = [ldmod_emitter])
     env['LDMODULEPREFIX'] = '$SHLIBPREFIX'
     env['LDMODULESUFFIX'] = '$SHLIBSUFFIX'
     env['LDMODULEFLAGS'] = '$SHLINKFLAGS'
-    env['LDMODULECOM'] = '$LDMODULE -o $TARGET $LDMODULEFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
-
-
+    env['LDMODULECOM'] = '$LDMODULE -o $TARGET $LDMODULEFLAGS $__LDMODULEVERSIONFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
+    env['LDMODULEVERSION'] = '$SHLIBVERSION'
+    env['LDMODULENOVERSIONSYMLINKS'] = '$SHLIBNOVERSIONSYMLINKS'
 
 def exists(env):
     # This module isn't really a Tool on its own, it's common logic for
diff --git a/engine/SCons/Tool/linkloc.py b/engine/SCons/Tool/linkloc.py
index d2c218f..a8415b8 100644
--- a/engine/SCons/Tool/linkloc.py
+++ b/engine/SCons/Tool/linkloc.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/linkloc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/linkloc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
@@ -86,6 +86,7 @@ def generate(env):
     env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS')
     env['SHLINKCOM']   = '${SUBST_CMD_FILE("$SHLINK $SHLINKFLAGS $_LIBDIRFLAGS $_LIBFLAGS -dll $TARGET $SOURCES")}'
     env['SHLIBEMITTER']= None
+    env['LDMODULEEMITTER']= None
     env['LINK']        = "linkloc"
     env['LINKFLAGS']   = SCons.Util.CLVar('')
     env['LINKCOM']     = '${SUBST_CMD_FILE("$LINK $LINKFLAGS $_LIBDIRFLAGS $_LIBFLAGS -exe $TARGET $SOURCES")}'
diff --git a/engine/SCons/Tool/m4.py b/engine/SCons/Tool/m4.py
index dfc4665..de9c3f6 100644
--- a/engine/SCons/Tool/m4.py
+++ b/engine/SCons/Tool/m4.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/m4.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/m4.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/masm.py b/engine/SCons/Tool/masm.py
index 7036de6..3e00d33 100644
--- a/engine/SCons/Tool/masm.py
+++ b/engine/SCons/Tool/masm.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/masm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/masm.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/midl.py b/engine/SCons/Tool/midl.py
index 0d93073..a46c1eb 100644
--- a/engine/SCons/Tool/midl.py
+++ b/engine/SCons/Tool/midl.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/midl.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/midl.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/mingw.py b/engine/SCons/Tool/mingw.py
index 236ce32..0afd559 100644
--- a/engine/SCons/Tool/mingw.py
+++ b/engine/SCons/Tool/mingw.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mingw.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mingw.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
@@ -146,6 +146,7 @@ def generate(env):
     env['SHLINKCOM']   = shlib_action
     env['LDMODULECOM'] = shlib_action
     env.Append(SHLIBEMITTER = [shlib_emitter])
+    env.Append(LDMODULEEMITTER = [shlib_emitter])
     env['AS'] = 'as'
 
     env['WIN32DEFPREFIX']        = ''
diff --git a/engine/SCons/Tool/msgfmt.py b/engine/SCons/Tool/msgfmt.py
index 4cfe686..9904f11 100644
--- a/engine/SCons/Tool/msgfmt.py
+++ b/engine/SCons/Tool/msgfmt.py
@@ -21,7 +21,7 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msgfmt.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msgfmt.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Builder import BuilderBase
 #############################################################################
diff --git a/engine/SCons/Tool/msginit.py b/engine/SCons/Tool/msginit.py
index 53046d6..7afd804 100644
--- a/engine/SCons/Tool/msginit.py
+++ b/engine/SCons/Tool/msginit.py
@@ -24,7 +24,7 @@ Tool specific initialization of msginit tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msginit.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msginit.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Warnings
 import SCons.Builder
diff --git a/engine/SCons/Tool/msgmerge.py b/engine/SCons/Tool/msgmerge.py
index e2d06f4..a1b4b73 100644
--- a/engine/SCons/Tool/msgmerge.py
+++ b/engine/SCons/Tool/msgmerge.py
@@ -24,7 +24,7 @@ Tool specific initialization for `msgmerge` tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msgmerge.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msgmerge.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 #############################################################################
 def _update_or_init_po_files(target, source, env):
diff --git a/engine/SCons/Tool/mslib.py b/engine/SCons/Tool/mslib.py
index a82e88d..c4f1b0e 100644
--- a/engine/SCons/Tool/mslib.py
+++ b/engine/SCons/Tool/mslib.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mslib.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mslib.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/mslink.py b/engine/SCons/Tool/mslink.py
index 6906303..ce561fa 100644
--- a/engine/SCons/Tool/mslink.py
+++ b/engine/SCons/Tool/mslink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mslink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mslink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
@@ -263,6 +263,7 @@ def generate(env):
     env['_SHLINK_SOURCES'] = windowsShlinkSources
     env['SHLINKCOM']   =  compositeShLinkAction
     env.Append(SHLIBEMITTER = [windowsLibEmitter])
+    env.Append(LDMODULEEMITTER = [windowsLibEmitter])
     env['LINK']        = 'link'
     env['LINKFLAGS']   = SCons.Util.CLVar('/nologo')
     env['_PDB'] = pdbGenerator
diff --git a/engine/SCons/Tool/mssdk.py b/engine/SCons/Tool/mssdk.py
index 3836817..66bf75d 100644
--- a/engine/SCons/Tool/mssdk.py
+++ b/engine/SCons/Tool/mssdk.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mssdk.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mssdk.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 """engine.SCons.Tool.mssdk
 
diff --git a/engine/SCons/Tool/msvc.py b/engine/SCons/Tool/msvc.py
index 03d65ee..bf4de45 100644
--- a/engine/SCons/Tool/msvc.py
+++ b/engine/SCons/Tool/msvc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/msvc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msvc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/msvs.py b/engine/SCons/Tool/msvs.py
index 0ad4c78..d47a939 100644
--- a/engine/SCons/Tool/msvs.py
+++ b/engine/SCons/Tool/msvs.py
@@ -30,7 +30,7 @@ selection method.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/msvs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/msvs.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.compat
 
diff --git a/engine/SCons/Tool/mwcc.py b/engine/SCons/Tool/mwcc.py
index a130d0f..31d815e 100644
--- a/engine/SCons/Tool/mwcc.py
+++ b/engine/SCons/Tool/mwcc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mwcc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mwcc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
diff --git a/engine/SCons/Tool/mwld.py b/engine/SCons/Tool/mwld.py
index 8f6f3a2..434f260 100644
--- a/engine/SCons/Tool/mwld.py
+++ b/engine/SCons/Tool/mwld.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/mwld.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/mwld.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Tool
 
@@ -56,6 +56,7 @@ def generate(env):
     env['SHLINKFLAGS'] = '$LINKFLAGS'
     env['SHLINKCOM']   = shlib_action
     env['SHLIBEMITTER']= shlib_emitter
+    env['LDMODULEEMITTER']= shlib_emitter
 
 
 def exists(env):
diff --git a/engine/SCons/Tool/nasm.py b/engine/SCons/Tool/nasm.py
index 86a7ef8..663e918 100644
--- a/engine/SCons/Tool/nasm.py
+++ b/engine/SCons/Tool/nasm.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/nasm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/nasm.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/packaging/__init__.py b/engine/SCons/Tool/packaging/__init__.py
index 2107d5f..d0a8dca 100644
--- a/engine/SCons/Tool/packaging/__init__.py
+++ b/engine/SCons/Tool/packaging/__init__.py
@@ -25,7 +25,7 @@ SCons Packaging Tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/packaging/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Environment
 from SCons.Variables import *
diff --git a/engine/SCons/Tool/packaging/ipk.py b/engine/SCons/Tool/packaging/ipk.py
index 51c3381..ae4d7fc 100644
--- a/engine/SCons/Tool/packaging/ipk.py
+++ b/engine/SCons/Tool/packaging/ipk.py
@@ -24,7 +24,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/ipk.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/ipk.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Builder
 import SCons.Node.FS
diff --git a/engine/SCons/Tool/packaging/msi.py b/engine/SCons/Tool/packaging/msi.py
index 41b7c77..cc563b8 100644
--- a/engine/SCons/Tool/packaging/msi.py
+++ b/engine/SCons/Tool/packaging/msi.py
@@ -25,7 +25,7 @@ The msi packager.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/packaging/msi.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/msi.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import SCons
diff --git a/engine/SCons/Tool/packaging/rpm.py b/engine/SCons/Tool/packaging/rpm.py
index f7e2577..cf3ea81 100644
--- a/engine/SCons/Tool/packaging/rpm.py
+++ b/engine/SCons/Tool/packaging/rpm.py
@@ -25,7 +25,7 @@ The rpm packager.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/packaging/rpm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/rpm.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 
@@ -168,7 +168,7 @@ def build_specfile_sections(spec):
         'X_RPM_POSTUNINSTALL' : '%%postun\n%s\n\n',
         'X_RPM_VERIFY'        : '%%verify\n%s\n\n',
 
-        # These are for internal use but could possibly be overriden
+        # These are for internal use but could possibly be overridden
         'X_RPM_PREP'          : '%%prep\n%s\n\n',
         'X_RPM_BUILD'         : '%%build\n%s\n\n',
         'X_RPM_INSTALL'       : '%%install\n%s\n\n',
diff --git a/engine/SCons/Tool/packaging/src_tarbz2.py b/engine/SCons/Tool/packaging/src_tarbz2.py
index 438fc20..6314e64 100644
--- a/engine/SCons/Tool/packaging/src_tarbz2.py
+++ b/engine/SCons/Tool/packaging/src_tarbz2.py
@@ -26,7 +26,7 @@ The tarbz2 SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_tarbz2.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/src_tarbz2.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/src_targz.py b/engine/SCons/Tool/packaging/src_targz.py
index 6a85869..7431fb7 100644
--- a/engine/SCons/Tool/packaging/src_targz.py
+++ b/engine/SCons/Tool/packaging/src_targz.py
@@ -26,7 +26,7 @@ The targz SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_targz.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/src_targz.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/src_zip.py b/engine/SCons/Tool/packaging/src_zip.py
index e1a1d49..99f8c06 100644
--- a/engine/SCons/Tool/packaging/src_zip.py
+++ b/engine/SCons/Tool/packaging/src_zip.py
@@ -26,7 +26,7 @@ The zip SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/src_zip.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/src_zip.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.packaging import putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/tarbz2.py b/engine/SCons/Tool/packaging/tarbz2.py
index 79f8219..02568d5 100644
--- a/engine/SCons/Tool/packaging/tarbz2.py
+++ b/engine/SCons/Tool/packaging/tarbz2.py
@@ -26,7 +26,7 @@ The tarbz2 SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/tarbz2.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/tarbz2.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/targz.py b/engine/SCons/Tool/packaging/targz.py
index eeb3d6a..09b1726 100644
--- a/engine/SCons/Tool/packaging/targz.py
+++ b/engine/SCons/Tool/packaging/targz.py
@@ -26,7 +26,7 @@ The targz SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/targz.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/targz.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/engine/SCons/Tool/packaging/zip.py b/engine/SCons/Tool/packaging/zip.py
index 6c4037d..bc263fb 100644
--- a/engine/SCons/Tool/packaging/zip.py
+++ b/engine/SCons/Tool/packaging/zip.py
@@ -26,7 +26,7 @@ The zip SRC packager.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/packaging/zip.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/packaging/zip.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Tool.packaging import stripinstallbuilder, putintopackageroot
 
diff --git a/engine/SCons/Tool/pdf.py b/engine/SCons/Tool/pdf.py
index 0ccb49b..b2d378e 100644
--- a/engine/SCons/Tool/pdf.py
+++ b/engine/SCons/Tool/pdf.py
@@ -28,7 +28,7 @@ Add an explicit action to run epstopdf to convert .eps files to .pdf
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/pdf.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/pdf.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Builder
 import SCons.Tool
diff --git a/engine/SCons/Tool/pdflatex.py b/engine/SCons/Tool/pdflatex.py
index 42188f4..f4cb4ae 100644
--- a/engine/SCons/Tool/pdflatex.py
+++ b/engine/SCons/Tool/pdflatex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/pdflatex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/pdflatex.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Util
diff --git a/engine/SCons/Tool/pdftex.py b/engine/SCons/Tool/pdftex.py
index e38a278..84adf47 100644
--- a/engine/SCons/Tool/pdftex.py
+++ b/engine/SCons/Tool/pdftex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/pdftex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/pdftex.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import SCons.Action
diff --git a/engine/SCons/Tool/qt.py b/engine/SCons/Tool/qt.py
index b8233c0..923f719 100644
--- a/engine/SCons/Tool/qt.py
+++ b/engine/SCons/Tool/qt.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/qt.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/qt.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
@@ -320,6 +320,7 @@ def generate(env):
     # correctly later by our emitter.
     env.AppendUnique(PROGEMITTER =[AutomocStatic],
                      SHLIBEMITTER=[AutomocShared],
+                     LDMODULEEMITTER=[AutomocShared],
                      LIBEMITTER  =[AutomocStatic],
                      # Of course, we need to link against the qt libraries
                      CPPPATH=["$QT_CPPPATH"],
diff --git a/engine/SCons/Tool/rmic.py b/engine/SCons/Tool/rmic.py
index 6045b7f..dbacda3 100644
--- a/engine/SCons/Tool/rmic.py
+++ b/engine/SCons/Tool/rmic.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/rmic.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rmic.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/rpcgen.py b/engine/SCons/Tool/rpcgen.py
index 1a3de76..eec6bf6 100644
--- a/engine/SCons/Tool/rpcgen.py
+++ b/engine/SCons/Tool/rpcgen.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/rpcgen.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rpcgen.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 from SCons.Builder import Builder
 import SCons.Util
diff --git a/engine/SCons/Tool/rpm.py b/engine/SCons/Tool/rpm.py
index 46b3112..400639e 100644
--- a/engine/SCons/Tool/rpm.py
+++ b/engine/SCons/Tool/rpm.py
@@ -33,7 +33,7 @@ tar.gz consisting of the source file and a specfile.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/rpm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rpm.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import re
diff --git a/engine/SCons/Tool/rpmutils.py b/engine/SCons/Tool/rpmutils.py
index 10b5560..82247bc 100644
--- a/engine/SCons/Tool/rpmutils.py
+++ b/engine/SCons/Tool/rpmutils.py
@@ -35,7 +35,7 @@ exact syntax.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/rpmutils.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/rpmutils.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 
 import platform
diff --git a/engine/SCons/Tool/sgiar.py b/engine/SCons/Tool/sgiar.py
index 6be4c65..1e7a4bd 100644
--- a/engine/SCons/Tool/sgiar.py
+++ b/engine/SCons/Tool/sgiar.py
@@ -33,7 +33,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgiar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgiar.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
diff --git a/engine/SCons/Tool/sgic++.py b/engine/SCons/Tool/sgic++.py
index 8ae115a..556009a 100644
--- a/engine/SCons/Tool/sgic++.py
+++ b/engine/SCons/Tool/sgic++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgic++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgic++.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sgicc.py b/engine/SCons/Tool/sgicc.py
index ec26bf1..f236b78 100644
--- a/engine/SCons/Tool/sgicc.py
+++ b/engine/SCons/Tool/sgicc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgicc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgicc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import cc
 
diff --git a/engine/SCons/Tool/sgilink.py b/engine/SCons/Tool/sgilink.py
index 828f6d0..b0249d2 100644
--- a/engine/SCons/Tool/sgilink.py
+++ b/engine/SCons/Tool/sgilink.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sgilink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sgilink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunar.py b/engine/SCons/Tool/sunar.py
index 9c3e481..6f7fe70 100644
--- a/engine/SCons/Tool/sunar.py
+++ b/engine/SCons/Tool/sunar.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunar.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Defaults
 import SCons.Tool
@@ -51,9 +51,6 @@ def generate(env):
         env['ARFLAGS']     = SCons.Util.CLVar('r')
         env['ARCOM']       = '$AR $ARFLAGS $TARGET $SOURCES'
 
-    env['SHLINK']      = '$LINK'
-    env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -G')
-    env['SHLINKCOM']   = '$SHLINK $SHLINKFLAGS -o $TARGET $SOURCES $_LIBDIRFLAGS $_LIBFLAGS'
     env['LIBPREFIX']   = 'lib'
     env['LIBSUFFIX']   = '.a'
 
diff --git a/engine/SCons/Tool/sunc++.py b/engine/SCons/Tool/sunc++.py
index 75fe435..8dc4d23 100644
--- a/engine/SCons/Tool/sunc++.py
+++ b/engine/SCons/Tool/sunc++.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunc++.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunc++.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons
 
diff --git a/engine/SCons/Tool/suncc.py b/engine/SCons/Tool/suncc.py
index b543b95..b40a8d7 100644
--- a/engine/SCons/Tool/suncc.py
+++ b/engine/SCons/Tool/suncc.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/suncc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/suncc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunf77.py b/engine/SCons/Tool/sunf77.py
index bff5c1a..a169c4f 100644
--- a/engine/SCons/Tool/sunf77.py
+++ b/engine/SCons/Tool/sunf77.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunf77.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunf77.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunf90.py b/engine/SCons/Tool/sunf90.py
index b0e31d1..bb737f7 100644
--- a/engine/SCons/Tool/sunf90.py
+++ b/engine/SCons/Tool/sunf90.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunf90.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunf90.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunf95.py b/engine/SCons/Tool/sunf95.py
index 5263f5a..52cbaa8 100644
--- a/engine/SCons/Tool/sunf95.py
+++ b/engine/SCons/Tool/sunf95.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunf95.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunf95.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Util
 
diff --git a/engine/SCons/Tool/sunlink.py b/engine/SCons/Tool/sunlink.py
index d8a941f..90f95bd 100644
--- a/engine/SCons/Tool/sunlink.py
+++ b/engine/SCons/Tool/sunlink.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/sunlink.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/sunlink.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import os.path
@@ -66,6 +66,10 @@ def generate(env):
     env['RPATHSUFFIX'] = ''
     env['_RPATH'] = '${_concat(RPATHPREFIX, RPATH, RPATHSUFFIX, __env__)}'
 
+    # Support for versioned libraries
+    link._setup_versioned_lib_variables(env, tool = 'sunlink', use_soname = True) 
+    env['LINKCALLBACKS'] = link._versioned_lib_callbacks()
+
 def exists(env):
     return ccLinker
 
diff --git a/engine/SCons/Tool/swig.py b/engine/SCons/Tool/swig.py
index 83cd315..74c5a8e 100644
--- a/engine/SCons/Tool/swig.py
+++ b/engine/SCons/Tool/swig.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/swig.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/swig.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
@@ -44,6 +44,8 @@ import SCons.Tool
 import SCons.Util
 import SCons.Node
 
+swigs = [ 'swig', 'swig3.0', 'swig2.0' ]
+
 SwigAction = SCons.Action.Action('$SWIGCOM', '$SWIGCOMSTR')
 
 def swigSuffixEmitter(env, source):
@@ -128,9 +130,10 @@ def _swigEmitter(target, source, env):
             target.extend(java_files)
     return (target, source)
 
-def _get_swig_version(env):
+def _get_swig_version(env, swig):
     """Run the SWIG command line tool to get and return the version number"""
-    pipe = SCons.Action._subproc(env, [env['SWIG'], '-version'],
+    swig = env.subst(swig)
+    pipe = SCons.Action._subproc(env, SCons.Util.CLVar(swig) + ['-version'],
                                  stdin = 'devnull',
                                  stderr = 'devnull',
                                  stdout = subprocess.PIPE)
@@ -160,8 +163,9 @@ def generate(env):
     java_file.add_action('.i', SwigAction)
     java_file.add_emitter('.i', _swigEmitter)
 
-    env['SWIG']              = 'swig'
-    env['SWIGVERSION']       = _get_swig_version(env)
+    if 'SWIG' not in env:
+        env['SWIG'] = env.Detect(swigs) or swigs[0]
+    env['SWIGVERSION']       = _get_swig_version(env, env['SWIG'])
     env['SWIGFLAGS']         = SCons.Util.CLVar('')
     env['SWIGDIRECTORSUFFIX'] = '_wrap.h'
     env['SWIGCFILESUFFIX']   = '_wrap$CFILESUFFIX'
diff --git a/engine/SCons/Tool/tar.py b/engine/SCons/Tool/tar.py
index 50afeae..e967438 100644
--- a/engine/SCons/Tool/tar.py
+++ b/engine/SCons/Tool/tar.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/tar.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/tar.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Action
 import SCons.Builder
diff --git a/engine/SCons/Tool/tex.py b/engine/SCons/Tool/tex.py
index 9dd462e..92542d6 100644
--- a/engine/SCons/Tool/tex.py
+++ b/engine/SCons/Tool/tex.py
@@ -32,7 +32,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/tex.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/tex.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import re
diff --git a/engine/SCons/Tool/textfile.py b/engine/SCons/Tool/textfile.py
index 9c2b3a1..87a3ad8 100644
--- a/engine/SCons/Tool/textfile.py
+++ b/engine/SCons/Tool/textfile.py
@@ -44,7 +44,7 @@ Textfile/Substfile builder for SCons.
     is unpredictible whether the expansion will occur.
 """
 
-__revision__ = "src/engine/SCons/Tool/textfile.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/textfile.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons
 
diff --git a/engine/SCons/Tool/tlib.py b/engine/SCons/Tool/tlib.py
index 9040439..4951bdd 100644
--- a/engine/SCons/Tool/tlib.py
+++ b/engine/SCons/Tool/tlib.py
@@ -27,7 +27,7 @@ XXX
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/tlib.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/tlib.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Tool
 import SCons.Tool.bcc32
diff --git a/engine/SCons/Tool/wix.py b/engine/SCons/Tool/wix.py
index 1291f18..0fa3ea7 100644
--- a/engine/SCons/Tool/wix.py
+++ b/engine/SCons/Tool/wix.py
@@ -30,7 +30,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/wix.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/wix.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import SCons.Builder
 import SCons.Action
diff --git a/engine/SCons/Tool/xgettext.py b/engine/SCons/Tool/xgettext.py
index ed6245d..4edd4aa 100644
--- a/engine/SCons/Tool/xgettext.py
+++ b/engine/SCons/Tool/xgettext.py
@@ -24,7 +24,7 @@ Tool specific initialization of `xgettext` tool.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Tool/xgettext.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/xgettext.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 #############################################################################
 class _CmdRunner(object):
diff --git a/engine/SCons/Tool/yacc.py b/engine/SCons/Tool/yacc.py
index 4b8d938..c05140f 100644
--- a/engine/SCons/Tool/yacc.py
+++ b/engine/SCons/Tool/yacc.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/yacc.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/yacc.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Tool/zip.py b/engine/SCons/Tool/zip.py
index 750769a..02999c2 100644
--- a/engine/SCons/Tool/zip.py
+++ b/engine/SCons/Tool/zip.py
@@ -31,7 +31,7 @@ selection method.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Tool/zip.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/zip.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 
diff --git a/engine/SCons/Util.py b/engine/SCons/Util.py
index 343f0a7..be86831 100644
--- a/engine/SCons/Util.py
+++ b/engine/SCons/Util.py
@@ -24,7 +24,7 @@ Various utility functions go here.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Util.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Util.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import sys
diff --git a/engine/SCons/Variables/BoolVariable.py b/engine/SCons/Variables/BoolVariable.py
index 1594559..c7310a7 100644
--- a/engine/SCons/Variables/BoolVariable.py
+++ b/engine/SCons/Variables/BoolVariable.py
@@ -34,7 +34,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/BoolVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/BoolVariable.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __all__ = ['BoolVariable',]
 
diff --git a/engine/SCons/Variables/EnumVariable.py b/engine/SCons/Variables/EnumVariable.py
index bc95cf6..734d48c 100644
--- a/engine/SCons/Variables/EnumVariable.py
+++ b/engine/SCons/Variables/EnumVariable.py
@@ -37,7 +37,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/EnumVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/EnumVariable.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __all__ = ['EnumVariable',]
 
diff --git a/engine/SCons/Variables/ListVariable.py b/engine/SCons/Variables/ListVariable.py
index 1faee72..5541f30 100644
--- a/engine/SCons/Variables/ListVariable.py
+++ b/engine/SCons/Variables/ListVariable.py
@@ -46,7 +46,7 @@ Usage example:
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Variables/ListVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/ListVariable.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 # Know Bug: This should behave like a Set-Type, but does not really,
 # since elements can occur twice.
diff --git a/engine/SCons/Variables/PackageVariable.py b/engine/SCons/Variables/PackageVariable.py
index b7a59fe..a0244e4 100644
--- a/engine/SCons/Variables/PackageVariable.py
+++ b/engine/SCons/Variables/PackageVariable.py
@@ -50,7 +50,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PackageVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/PackageVariable.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __all__ = ['PackageVariable',]
 
diff --git a/engine/SCons/Variables/PathVariable.py b/engine/SCons/Variables/PathVariable.py
index b095cbc..a7c68a8 100644
--- a/engine/SCons/Variables/PathVariable.py
+++ b/engine/SCons/Variables/PathVariable.py
@@ -68,7 +68,7 @@ Usage example:
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PathVariable.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/PathVariable.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __all__ = ['PathVariable',]
 
diff --git a/engine/SCons/Variables/__init__.py b/engine/SCons/Variables/__init__.py
index a00d4f8..57447d7 100644
--- a/engine/SCons/Variables/__init__.py
+++ b/engine/SCons/Variables/__init__.py
@@ -26,7 +26,7 @@ customizable variables to an SCons build.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Variables/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os.path
 import sys
diff --git a/engine/SCons/Warnings.py b/engine/SCons/Warnings.py
index 615bc45..5edef27 100644
--- a/engine/SCons/Warnings.py
+++ b/engine/SCons/Warnings.py
@@ -27,7 +27,7 @@ This file implements the warnings framework for SCons.
 
 """
 
-__revision__ = "src/engine/SCons/Warnings.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/Warnings.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import sys
 
diff --git a/engine/SCons/__init__.py b/engine/SCons/__init__.py
index 019cbf9..d7ec281 100644
--- a/engine/SCons/__init__.py
+++ b/engine/SCons/__init__.py
@@ -27,15 +27,15 @@ The main package for the SCons software construction utility.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
-__version__ = "2.4.0"
+__version__ = "2.4.1"
 
-__build__ = "rel_2.4.0:3365:9259ea1c13d7"
+__build__ = "rel_2.4.1:3453:73fefd3ea0b0"
 
-__buildsys__ = "hpmicrodog"
+__buildsys__ = "ubuntu1404-32bit"
 
-__date__ = "2015/09/21 14:03:43"
+__date__ = "2015/11/09 03:25:05"
 
 __developer__ = "bdbaddog"
 
diff --git a/engine/SCons/compat/__init__.py b/engine/SCons/compat/__init__.py
index 2352d4c..62f28f2 100644
--- a/engine/SCons/compat/__init__.py
+++ b/engine/SCons/compat/__init__.py
@@ -60,7 +60,7 @@ function defined below loads the module as the "real" name (without the
 rest of our code will find our pre-loaded compatibility module.
 """
 
-__revision__ = "src/engine/SCons/compat/__init__.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/compat/__init__.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import os
 import sys
diff --git a/engine/SCons/compat/_scons_builtins.py b/engine/SCons/compat/_scons_builtins.py
index bf2005f..b42fc2d 100644
--- a/engine/SCons/compat/_scons_builtins.py
+++ b/engine/SCons/compat/_scons_builtins.py
@@ -51,7 +51,7 @@ the FUNCTIONS or DATA output, that means those names are already built in
 to this version of Python and we don't need to add them from this module.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_builtins.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_builtins.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import builtins
 
diff --git a/engine/SCons/compat/_scons_collections.py b/engine/SCons/compat/_scons_collections.py
index 1f13065..4a0d96b 100644
--- a/engine/SCons/compat/_scons_collections.py
+++ b/engine/SCons/compat/_scons_collections.py
@@ -30,7 +30,7 @@ used by SCons, in an interface that looks enough like collections for
 our purposes.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_collections.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_collections.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 # Use exec to hide old names from fixers.
 exec("""if True:
diff --git a/engine/SCons/compat/_scons_dbm.py b/engine/SCons/compat/_scons_dbm.py
index 3bc0768..080c424 100644
--- a/engine/SCons/compat/_scons_dbm.py
+++ b/engine/SCons/compat/_scons_dbm.py
@@ -30,7 +30,7 @@ that the whichdb.whichdb() implementstation in the various 2.X versions of
 Python won't blow up even if dbm wasn't compiled in.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_dbm.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_dbm.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 class error(Exception):
     pass
diff --git a/engine/SCons/compat/_scons_hashlib.py b/engine/SCons/compat/_scons_hashlib.py
index de93e4b..6262530 100644
--- a/engine/SCons/compat/_scons_hashlib.py
+++ b/engine/SCons/compat/_scons_hashlib.py
@@ -31,7 +31,7 @@ purposes, anyway).  In fact, this module will raise an ImportError if
 the underlying md5 module isn't available.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_hashlib.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_hashlib.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 import md5
 from string import hexdigits
diff --git a/engine/SCons/compat/_scons_io.py b/engine/SCons/compat/_scons_io.py
index 72cd3b6..25cf119 100644
--- a/engine/SCons/compat/_scons_io.py
+++ b/engine/SCons/compat/_scons_io.py
@@ -29,7 +29,7 @@ functionality.  It only wraps the portions of io functionality used
 by SCons, in an interface that looks enough like io for our purposes.
 """
 
-__revision__ = "src/engine/SCons/compat/_scons_io.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/compat/_scons_io.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 # Use the "imp" module to protect the imports below from fixers.
 import imp
diff --git a/engine/SCons/cpp.py b/engine/SCons/cpp.py
index cf80a4b..56bb003 100644
--- a/engine/SCons/cpp.py
+++ b/engine/SCons/cpp.py
@@ -21,7 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/cpp.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/cpp.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 __doc__ = """
 SCons C Pre-Processor module
diff --git a/engine/SCons/exitfuncs.py b/engine/SCons/exitfuncs.py
index 19c8e8e..ae07ec0 100644
--- a/engine/SCons/exitfuncs.py
+++ b/engine/SCons/exitfuncs.py
@@ -27,7 +27,7 @@ Register functions which are executed when SCons exits for any reason.
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/exitfuncs.py rel_2.4.0:3365:9259ea1c13d7 2015/09/21 14:03:43 bdbaddog"
+__revision__ = "src/engine/SCons/exitfuncs.py rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog"
 
 
 import atexit
author	Jörg Frings-Fürst <debian@jff-webhosting.net>	2015-11-16 05:58:16 +0100
committer	Jörg Frings-Fürst <debian@jff-webhosting.net>	2015-11-16 05:58:16 +0100
commit	60df8165e6be58369d76af4d38388c9846d82975 (patch)
tree	827a72e604ad686e6817a40ff0dcaef405212276 /engine/SCons
parent	9948951ec4fcd3c29d7d7ba981de1d1fea275595 (diff)
parent	6a570afd28bccdb118edde36488ba9834494d6c7 (diff)