--- a/tools/build/src/tools/python.jam	2012-04-25 22:35:55.000000000 -0500
+++ b/tools/build/src/tools/python.jam	2013-01-21 07:22:30.814373200 -0600
@@ -376,7 +376,7 @@ local rule path-to-native ( paths * )
 #
 local rule split-version ( version )
 {
-    local major-minor = [ MATCH ^([0-9]+)\.([0-9]+)(.*)$ : $(version) : 1 2 3 ] ;
+    local major-minor = [ MATCH ^([0-9]+)\.([0-9]+[dmu]*)(.*)$ : $(version) : 1 2 3 ] ;
     if ! $(major-minor[2]) || $(major-minor[3])
     {
         ECHO "Warning: \"using python\" expects a two part (major, minor) version number; got" $(version) instead ;