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#ifndef GLINCLUDES_H
#define GLINCLUDES_H
#define GL_GLEXT_PROTOTYPES 1
#ifdef __APPLE__
#include<OpenGL/gl.h>
#include<OpenGL/glu.h>
#include<Glut/glut.h>
//#include<OpenGL/glext.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
// is glext really needed?
//#include <GL/glext.h>
#endif
// GLew might not be needed on mac, or if a recent version of OpenGL is present
//#ifndef __APPLE__
#ifndef GL_VERSION_2_1
// OpenGL>=2.1 not found, try GLEW
#include <GL/glew.h>
#ifndef GLEW_VERSION_2_1
#error OpenGL 2.1 or GLEW is required
#endif
#endif
//#endif
#endif // GLINCLUDES_H