Index: libs/config/test/boost_has_pthread_yield.ipp
===================================================================
--- libs/config/test/boost_has_pthread_yield.ipp	(revision 74924)
+++ libs/config/test/boost_has_pthread_yield.ipp	(working copy)
@@ -17,7 +17,7 @@
 void f()
 {
     // this is never called, it just has to compile:
-    int res = pthread_yield();
+    pthread_yield();
 }
 
 int test()