diff -r a32f990b73d9 -r ee5959aa4410 src/lemon/lp_glpk.h
--- a/src/lemon/lp_glpk.h	Fri Apr 15 22:12:51 2005 +0000
+++ b/src/lemon/lp_glpk.h	Sun Apr 17 18:57:22 2005 +0000
@@ -31,7 +31,7 @@
 
   /// \brief Wrapper for GLPK solver
   /// 
-  /// This class implements a lemon wrapper for GLPK.
+  /// This class implements an interface for GLPK.
   ///\ingroup gen_opt_group
   class LpGlpk : public LpSolverBase {
   protected:
@@ -45,6 +45,9 @@
     ~LpGlpk();
     
   protected:
+    virtual LpSolverBase &_newLp();
+    virtual LpSolverBase &_copyLp();
+
     virtual int _addCol();
     virtual int _addRow();
     virtual void _setRowCoeffs(int i,