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diff --git a/thirdparty/linux/include/coin/ClpConstraintAmpl.hpp b/thirdparty/linux/include/coin/ClpConstraintAmpl.hpp
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+++ b/thirdparty/linux/include/coin/ClpConstraintAmpl.hpp
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+/* $Id: ClpConstraintAmpl.hpp 1899 2013-04-09 18:12:08Z stefan $ */
+// Copyright (C) 2007, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef ClpConstraintAmpl_H
+#define ClpConstraintAmpl_H
+
+#include "ClpConstraint.hpp"
+
+//#############################################################################
+
+/** Ampl Constraint Class
+
+*/
+
+class ClpConstraintAmpl : public ClpConstraint {
+
+public:
+
+    ///@name Stuff
+    //@{
+
+
+    /** Fills gradient.  If Ampl then solution may be NULL,
+        also returns true value of function and offset so we can use x not deltaX in constraint
+        If refresh is false then uses last solution
+        Uses model for scaling
+        Returns non-zero if gradient udefined at current solution
+    */
+    virtual int gradient(const ClpSimplex * model,
+                         const double * solution,
+                         double * gradient,
+                         double & functionValue ,
+                         double & offset,
+                         bool useScaling = false,
+                         bool refresh = true) const ;
+    /// Resize constraint
+    virtual void resize(int newNumberColumns) ;
+    /// Delete columns in  constraint
+    virtual void deleteSome(int numberToDelete, const int * which) ;
+    /// Scale constraint
+    virtual void reallyScale(const double * columnScale) ;
+    /** Given a zeroed array sets nonampl columns to 1.
+        Returns number of nonampl columns
+     */
+    virtual int markNonlinear(char * which) const ;
+    /** Given a zeroed array sets possible nonzero coefficients to 1.
+        Returns number of nonzeros
+     */
+    virtual int markNonzero(char * which) const;
+    /// Say we have new primal solution - so may need to recompute
+    virtual void newXValues() ;
+    //@}
+
+
+    ///@name Constructors and destructors
+    //@{
+    /// Default Constructor
+    ClpConstraintAmpl();
+
+    /// Constructor from ampl
+    ClpConstraintAmpl(int row, void * amplInfo);
+
+    /** Copy constructor .
+    */
+    ClpConstraintAmpl(const ClpConstraintAmpl & rhs);
+
+    /// Assignment operator
+    ClpConstraintAmpl & operator=(const ClpConstraintAmpl& rhs);
+
+    /// Destructor
+    virtual ~ClpConstraintAmpl ();
+
+    /// Clone
+    virtual ClpConstraint * clone() const;
+    //@}
+    ///@name Gets and sets
+    //@{
+    /// Number of coefficients
+    virtual int numberCoefficients() const;
+    /// Columns
+    inline const int * column() const {
+        return column_;
+    }
+    /// Coefficients
+    inline const double * coefficient() const {
+        return coefficient_;
+    }
+    //@}
+
+    //---------------------------------------------------------------------------
+
+private:
+    ///@name Private member data
+    /// Ampl info
+    void * amplInfo_;
+    /// Column
+    int * column_;
+    /// Coefficients
+    double * coefficient_;
+    /// Number of coefficients in gradient
+    int numberCoefficients_;
+    //@}
+};
+
+#endif
+