Index: boostcpp.jam
===================================================================
--- boostcpp.jam	(revision 79133)
+++ boostcpp.jam	(working copy)
@@ -255,12 +255,12 @@
     if $(layout-versioned) && ( [ modules.peek : NT ] || [ modules.peek : UNIX ] )
     {
         generate stage-unversioned : stage-proper :
-          <generating-rule>@boostcpp.make-unversioned-links ;
+          <generating-rule>boostcpp.make-unversioned-links ;
         $(p).mark-target-as-explicit stage-unversioned ;
 
         generate install-unversioned : install-proper :
-          <generating-rule>@boostcpp.make-unversioned-links ;
-        $(p).mark-target-as-explicit install-unversioned ;
+          <generating-rule>boostcpp.make-unversioned-links ;
+        $(p).mark-target-as-explicit explicit install-unversioned ;
     }
     else
     {