Ошибка в программе

#include <windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glaux.h>
void CALLBACK resize(int width,int height)
{
glViewport(0,0,width,height);
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
glOrtho(-5,5, -5,5, 2,12);
gluLookAt( 0,0,5, 0,0,0, 0,1,0 );
glMatrixMode( GL_MODELVIEW );
}
void CALLBACK display(void)
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3d(1,1,1);
glBegin(GL_QUADS);
glVertex3d(-4,-4,0);
glVertex3d(-4, 4,0);
glVertex3d( 4, 4,0);
glVertex3d( 4,-4,0);
glEnd();
/*
glColor3d(1,0,0);
auxSolidSphere(0.1);
*/
auxSwapBuffers();
}
void main()
{
float pos[4] = {3,3,3,0.5};
float dir[3] = {-1,-1,-1};
GLfloat mat_specular[] = {1,1,1,1};
auxInitPosition( 50, 10, 400, 400);
auxInitDisplayMode( AUX_RGB | AUX_DEPTH | AUX_DOUBLE );
auxInitWindow( "Light" );
auxIdleFunc(display);
auxReshapeFunc(resize);
glEnable(GL_DEPTH_TEST);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glLightfv(GL_LIGHT0, GL_POSITION, pos);
glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, dir);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialf(GL_FRONT, GL_SHININESS, 128.0);
glLighti(GL_LIGHT0, GL_SPOT_EXPONENT, 0);
glLighti(GL_LIGHT0, GL_SPOT_CUTOFF, 90);
auxMainLoop(display);
}