--- /dev/null
+#ifndef FREEGLUT_EXT_H
+#define FREEGLUT_EXT_H
+
+/*
+ * freeglut_ext.h
+ *
+ * The non-GLUT-compatible extensions to the freeglut library include file
+ *
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
+ * Written by Pawel W. Olszta, <olszta@sourceforge.net>
+ * Creation date: Thu Dec 2 1999
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/*
+ * GLUT API Extension macro definitions -- behaviour when the user clicks on an "x" to close a window
+ */
+#define GLUT_ACTION_EXIT 0
+#define GLUT_ACTION_GLUTMAINLOOP_RETURNS 1
+#define GLUT_ACTION_CONTINUE_EXECUTION 2
+
+/*
+ * GLUT API Extension macro definitions -- the glutGet parameters
+ */
+#define GLUT_ACTION_ON_WINDOW_CLOSE 0x01F9
+
+#define GLUT_WINDOW_BORDER_WIDTH 0x01FA
+#define GLUT_WINDOW_HEADER_HEIGHT 0x01FB
+
+/*
+ * Process loop function, see freeglut_main.c
+ */
+FGAPI void FGAPIENTRY glutMainLoopEvent( void );
+FGAPI void FGAPIENTRY glutLeaveMainLoop( void );
+
+/*
+ * Window-specific callback functions, see freeglut_callbacks.c
+ */
+FGAPI void FGAPIENTRY glutCloseFunc( void (* callback)( void ) );
+FGAPI void FGAPIENTRY glutWMCloseFunc( void (* callback)( void ) );
+
+/*
+ * State setting and retrieval functions, see freeglut_state.c
+ */
+FGAPI void FGAPIENTRY glutSetOption ( GLenum option_flag, int value ) ;
+
+/*
+ * Font stuff, see freeglut_font.c
+ */
+FGAPI int FGAPIENTRY glutBitmapHeight( void* font );
+FGAPI GLfloat FGAPIENTRY glutStrokeHeight( void* font );
+FGAPI void FGAPIENTRY glutBitmapString( void* font, const char *string );
+FGAPI void FGAPIENTRY glutStrokeString( void* font, const char *string );
+
+/*
+ * Geometry functions, see freeglut_geometry.c
+ */
+FGAPI void FGAPIENTRY glutWireRhombicDodecahedron( void );
+FGAPI void FGAPIENTRY glutSolidRhombicDodecahedron( void );
+FGAPI void FGAPIENTRY glutWireSierpinskiSponge ( int num_levels, GLfloat offset[3], GLfloat scale ) ;
+FGAPI void FGAPIENTRY glutSolidSierpinskiSponge ( int num_levels, GLfloat offset[3], GLfloat scale ) ;
+
+#ifdef __cplusplus
+ }
+#endif
+
+/*** END OF FILE ***/
+
+#endif /* FREEGLUT_EXT_H */
+