diff -r 2c2e8df67ddc -r b9887ae63df0 test/hao_orlin_test.cc
--- a/test/hao_orlin_test.cc	Tue Aug 06 12:21:06 2013 +0200
+++ b/test/hao_orlin_test.cc	Wed Aug 07 07:09:31 2013 +0200
@@ -66,7 +66,7 @@
   CapMap cap;
   CutMap cut;
   Value v;
-  ignore_unused_variable_warning(v);
+  ::lemon::ignore_unused_variable_warning(v);
 
   HaoOrlin<Digraph, CapMap> ho_test(g, cap);
   const HaoOrlin<Digraph, CapMap>&