6 files changed, 12 insertions, 7 deletions
diff --git a/engine/SCons/Variables/BoolVariable.py b/engine/SCons/Variables/BoolVariable.py
index 881a6b4..8e723fe 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_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/BoolVariable.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 __all__ = ['BoolVariable',]
 
diff --git a/engine/SCons/Variables/EnumVariable.py b/engine/SCons/Variables/EnumVariable.py
index b6fc382..fdc7851 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_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/EnumVariable.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 __all__ = ['EnumVariable',]
 
diff --git a/engine/SCons/Variables/ListVariable.py b/engine/SCons/Variables/ListVariable.py
index 8f9a9a8..616d18b 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_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/ListVariable.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 # Known 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 8e229b7..9a81c6d 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_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/PackageVariable.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 __all__ = ['PackageVariable',]
 
diff --git a/engine/SCons/Variables/PathVariable.py b/engine/SCons/Variables/PathVariable.py
index dc5fcd2..8b01593 100644
--- a/engine/SCons/Variables/PathVariable.py
+++ b/engine/SCons/Variables/PathVariable.py
@@ -67,7 +67,7 @@ Usage example::
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 
-__revision__ = "src/engine/SCons/Variables/PathVariable.py rel_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/PathVariable.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 __all__ = ['PathVariable',]
 
diff --git a/engine/SCons/Variables/__init__.py b/engine/SCons/Variables/__init__.py
index 784f795..2c48da6 100644
--- a/engine/SCons/Variables/__init__.py
+++ b/engine/SCons/Variables/__init__.py
@@ -26,10 +26,11 @@ 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_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Variables/__init__.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 import os.path
 import sys
+from functools import cmp_to_key
 
 import SCons.Environment
 import SCons.Errors
@@ -287,9 +288,13 @@ class Variables(object):
 
         env - an environment that is used to get the current values
               of the options.
+        cmp - Either a function as follows: The specific sort function should take two arguments and return -1, 0 or 1 
+              or a boolean to indicate if it should be sorted.
         """
 
-        if sort:
+        if callable(sort):
+            options = sorted(self.options, key=cmp_to_key(lambda x,y: sort(x.key,y.key)))
+        elif sort is True:
             options = sorted(self.options, key=lambda x: x.key)
         else:
             options = self.options