diff -r a3402913cffe -r f63e87b9748e lemon/lp_skeleton.cc
--- a/lemon/lp_skeleton.cc	Sat Apr 18 21:54:30 2009 +0200
+++ b/lemon/lp_skeleton.cc	Tue Apr 21 10:34:49 2009 +0100
@@ -84,6 +84,8 @@
     row_num = col_num = 0;
   }
 
+  void SkeletonSolverBase::_messageLevel(MessageLevel) {}
+
   LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; }
 
   LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; }