diff --git a/src/tools/clang-linux.jam b/src/tools/clang-linux.jam
index 088909247..0aa29d519 100644
--- a/src/tools/clang-linux.jam
+++ b/src/tools/clang-linux.jam
@@ -191,6 +191,9 @@ rule link.dll ( targets * : sources * : properties * ) {
 
 rule setup-threading ( targets * : sources * : properties * )
 {
+
+    local target = [ feature.get-values target-os : $(properties) ] ;
+        
     switch $(target)
     {
         case windows :