$OpenBSD: patch-Jamroot,v 1.2 2010/04/21 09:26:58 landry Exp $
--- Jamroot.orig	Sun Jan 24 21:43:34 2010
+++ Jamroot	Wed Apr 21 09:38:38 2010
@@ -138,6 +138,7 @@ import option ;
 path-constant BOOST_ROOT : . ;
 constant BOOST_VERSION : 1.42.0 ;
 constant BOOST_JAMROOT_MODULE : $(__name__) ;
+constant SO_VERSION : ${SO_VERSION} ;
 
 local version-tag = [ MATCH "^([^.]+)[.]([^.]+)[.]([^.]+)" : $(BOOST_VERSION) ]
     ;
@@ -369,7 +370,7 @@ rule tag ( name : type ? : property-set )
         else if $(layout) = system
         {
             result = [ common.format-name
-                <base> 
+                <base> <threading>
                 -$(BUILD_ID)
                 : $(name) : $(type) : $(property-set) ] ;
         }
@@ -390,7 +391,7 @@ rule tag ( name : type ? : property-set )
           ( ! ( [ $(property-set).get <target-os> ] in windows cygwin darwin aix ) &&
             ! ( [ $(property-set).get <toolset> ] in pgi ) )
         {
-            result = $(result).$(BOOST_VERSION)  ;
+            result = $(result).$(SO_VERSION)  ;
         }
             
         return $(result) ;