diff -r 2c2e8df67ddc -r b9887ae63df0 test/bellman_ford_test.cc
--- a/test/bellman_ford_test.cc	Tue Aug 06 12:21:06 2013 +0200
+++ b/test/bellman_ford_test.cc	Wed Aug 07 07:09:31 2013 +0200
@@ -65,10 +65,10 @@
   Node s, t, n;
   Arc e;
   Value l;
-  ignore_unused_variable_warning(l);
+  ::lemon::ignore_unused_variable_warning(l);
   int k=3;
   bool b;
-  ignore_unused_variable_warning(b);
+  ::lemon::ignore_unused_variable_warning(b);
   BF::DistMap d(gr);
   BF::PredMap p(gr);
   LengthMap length;
@@ -149,7 +149,7 @@
 
   Digraph g;
   bool b;
-  ignore_unused_variable_warning(b);
+  ::lemon::ignore_unused_variable_warning(b);
 
   bellmanFord(g,LengthMap()).run(Node());
   b = bellmanFord(g,LengthMap()).run(Node(),Node());