#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif

void display(){
	glClear(GL_COLOR_BUFFER_BIT);
	glColor3f(0.0, 0.0, 0.0);
	glBegin(GL_POLYGON);        
		glVertex2f(-0.5, -0.5);        
		glVertex2f(-0.5, 0.5);        
		glVertex2f(0.5, 0.5);        
		glVertex2f(0.5, -0.5);    
	glEnd();
	glFlush(); 
}

int main(int argc, char** argv){
	glutInit(&argc, argv);

	glutInitWindowSize(500, 300);
	glutCreateWindow("Exemple - 2");     
	glutDisplayFunc(display);    
	
	glClearColor(1.0, 1.0, 1.0, 1.0);
	
	glutMainLoop();

	return 0;
}