diff --git a/gb.opengl/src/GLeval.h b/gb.opengl/src/GLeval.h
new file mode 100644
index 000000000..43a3c8b6f
--- /dev/null
+++ b/gb.opengl/src/GLeval.h
@@ -0,0 +1,48 @@
+/***************************************************************************
+
+  GLeval.h
+
+  (c) 2005-2011 Laurent Carlier <lordheavy@users.sourceforge.net>
+           2011 Tomek <tommyline@interia.pl>
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2, or (at your option)
+  any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+***************************************************************************/
+
+#ifndef __GLEVAL_H
+#define __GLEVAL_H
+
+#include "main.h"
+
+DECLARE_METHOD(GLMAP1F);
+DECLARE_METHOD(GLMAP2F);
+/*DECLARE_METHOD(GLGETMAPDV);
+DECLARE_METHOD(GLGETMAPFV);
+DECLARE_METHOD(GLGETMAPIV);*/
+DECLARE_METHOD(GLEVALCOORD1F);
+/*DECLARE_METHOD(GLEVALCOORD1DV);
+DECLARE_METHOD(GLEVALCOORD1FV);*/
+DECLARE_METHOD(GLEVALCOORD2F);
+/*DECLARE_METHOD(GLEVALCOORD2DV);
+DECLARE_METHOD(GLEVALCOORD2FV);*/
+DECLARE_METHOD(GLMAPGRID1F);
+DECLARE_METHOD(GLMAPGRID2F);
+DECLARE_METHOD(GLEVALPOINT1);
+DECLARE_METHOD(GLEVALPOINT2);
+DECLARE_METHOD(GLEVALMESH1);
+DECLARE_METHOD(GLEVALMESH2);
+
+#endif /* __GLEVAL_H */
+
+