--- tools/build/v2/tools/common.jam.orig	Wed Jun 20 20:50:33 2007
+++ tools/build/v2/tools/common.jam	Wed Jun 20 20:51:11 2007
@@ -645,14 +645,6 @@
                 result += [ join-tag $(f:G=) :
                     [ toolset-tag $(name) : $(type) : $(property-set) ] ] ;
                 
-                case <threading> :
-                result += [ join-tag $(f:G=) :
-                    [ threading-tag $(name) : $(type) : $(property-set) ] ] ;
-                
-                case <runtime> :
-                result += [ join-tag $(f:G=) :
-                    [ runtime-tag $(name) : $(type) : $(property-set) ] ] ;
-                
                 case <version:*> :
                 local key = [ MATCH <version:(.*)> : $(f:G) ] ;
                 local version = [ $(property-set).get <$(key)> ] ;