diff -r 774349a16ba0 -r 1fe3b4ad8caa test/dfs_test.cc
--- a/test/dfs_test.cc	Wed Nov 07 18:13:26 2012 +0100
+++ b/test/dfs_test.cc	Wed Nov 28 12:02:36 2012 +0100
@@ -67,6 +67,8 @@
   Arc e;
   int l, i;
   bool b;
+  ignore_unused_variable_warning(l,i,b);
+
   DType::DistMap d(G);
   DType::PredMap p(G);
   Path<Digraph> pp;
@@ -151,6 +153,8 @@
 
   Digraph g;
   bool b;
+  ignore_unused_variable_warning(b);
+
   dfs(g).run(Node());
   b=dfs(g).run(Node(),Node());
   dfs(g).run();