diff --git a/lemon/lp_skeleton.cc b/lemon/lp_skeleton.cc
new file mode 100644
--- /dev/null
+++ b/lemon/lp_skeleton.cc
@@ -0,0 +1,187 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2008
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+#include <lemon/lp_skeleton.h>
+
+///\file
+///\brief A skeleton file to implement LP solver interfaces
+namespace lemon {
+
+  LpSolverBase* LpSkeleton::_newLp()
+  {
+    LpSolverBase *tmp=0;
+    return tmp;
+  }
+
+  LpSolverBase* LpSkeleton::_copyLp()
+  {
+    LpSolverBase *tmp=0;
+    return tmp;
+  }
+
+  int LpSkeleton::_addCol()
+  {
+    return ++col_num;
+  }
+
+  int LpSkeleton::_addRow()
+  {
+    return ++row_num;
+  }
+
+  void LpSkeleton::_eraseCol(int ) {
+  }
+
+  void LpSkeleton::_eraseRow(int) {
+  }
+
+  void LpSkeleton::_getColName(int, std::string &) const {
+  }
+
+
+  void LpSkeleton::_setColName(int, const std::string &) {
+  }
+
+  int LpSkeleton::_colByName(const std::string&) const { return -1; }
+
+
+  void LpSkeleton::_setRowCoeffs(int, ConstRowIterator, ConstRowIterator) {
+  }
+
+  void LpSkeleton::_getRowCoeffs(int, RowIterator) const {
+  }
+
+  void LpSkeleton::_setColCoeffs(int, ConstColIterator, ConstColIterator) {
+  }
+
+  void LpSkeleton::_getColCoeffs(int, ColIterator) const {
+  }
+
+  void LpSkeleton::_setCoeff(int, int, Value )
+  {
+  }
+
+  LpSkeleton::Value LpSkeleton::_getCoeff(int, int) const
+  {
+    return 0;
+  }
+
+
+  void LpSkeleton::_setColLowerBound(int, Value)
+  {
+  }
+
+  LpSkeleton::Value LpSkeleton::_getColLowerBound(int) const
+  {
+    return 0;
+  }
+
+  void LpSkeleton::_setColUpperBound(int, Value)
+  {
+  }
+
+  LpSkeleton::Value LpSkeleton::_getColUpperBound(int) const
+  {
+    return 0;
+  }
+
+//   void LpSkeleton::_setRowLowerBound(int, Value)
+//   {
+//   }
+
+//   void LpSkeleton::_setRowUpperBound(int, Value)
+//   {
+//   }
+
+  void LpSkeleton::_setRowBounds(int, Value, Value)
+  {
+  }
+
+  void LpSkeleton::_getRowBounds(int, Value&, Value&) const
+  {
+  }
+
+  void LpSkeleton::_setObjCoeff(int, Value)
+  {
+  }
+
+  LpSkeleton::Value LpSkeleton::_getObjCoeff(int) const
+  {
+    return 0;
+  }
+
+  void LpSkeleton::_setMax()
+  {
+  }
+
+  void LpSkeleton::_setMin()
+  {
+  }
+
+  bool LpSkeleton::_isMax() const
+  {
+    return true;
+  }
+
+
+  void LpSkeleton::_clearObj()
+  {
+  }
+
+  LpSkeleton::SolveExitStatus LpSkeleton::_solve()
+  {
+    return SOLVED;
+  }
+
+  LpSkeleton::Value LpSkeleton::_getPrimal(int) const
+  {
+    return 0;
+  }
+
+  LpSkeleton::Value LpSkeleton::_getDual(int) const
+  {
+    return 0;
+  }
+
+  LpSkeleton::Value LpSkeleton::_getPrimalValue() const
+  {
+    return 0;
+  }
+
+  LpSkeleton::SolutionStatus LpSkeleton::_getPrimalStatus() const
+  {
+    return UNDEFINED;
+  }
+
+  LpSkeleton::SolutionStatus LpSkeleton::_getDualStatus() const
+  {
+    return UNDEFINED;
+  }
+
+  LpSkeleton::ProblemTypes LpSkeleton::_getProblemType() const
+  {
+    return UNKNOWN;
+  }
+
+  bool LpSkeleton::_isBasicCol(int) const
+  {
+    return true;
+  }
+
+} //namespace lemon
+