opengl.h

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/* This file is part of COVISE.
 
   You can use it under the terms of the GNU Lesser General Public License
   version 2.1 or later, see lgpl-2.1.txt.
 
 * License: LGPL 2+ */
 
#ifndef SYSDEP_OPENGL_H
#define SYSDEP_OPENGL_H
 
#if defined(__linux__) || defined(LINUX) || defined(__APPLE__)
#define GL_GLEXT_PROTOTYPES 1
#define GL_GLEXT_LEGACY 1
#endif
 
#if defined(_WIN32)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN
#else
#include <windows.h>
#endif
#endif
 
#if defined(__APPLE__)
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#else
#include <GL/gl.h>
#include <GL/glu.h>
#endif
 
#ifndef GL_GLEXT_VERSION
#include "khronos-glext.h"
#endif
 
#endif