Index: libs/filesystem/build/Jamfile.v2
===================================================================
--- libs/filesystem/build/Jamfile.v2	(revision 62093)
+++ libs/filesystem/build/Jamfile.v2	(working copy)
@@ -27,6 +27,7 @@
       # clients have to be directly linked to Boost.System. For static linking 
       # this happens anyway, and for shared we need to make it happen.
       <target-os>windows,<link>shared:<library>../../system/build//boost_system
+      <target-os>darwin,<link>shared:<library>../../system/build//boost_system
     ;
 
-boost-install boost_filesystem ;
\ No newline at end of file
+boost-install boost_filesystem ;