probleme de compilation opengl sous linux

 
[bemixam@zero opengl]$ cc ex1-1.c -L/usr/X11R6/lib/ -lglut -lGL
/usr/X11R6/lib//libglut.so: undefined reference to `gluErrorString'
/usr/X11R6/lib//libglut.so: undefined reference to `gluNewQuadric'
/usr/X11R6/lib//libglut.so: undefined reference to `gluQuadricDrawStyle'
/usr/X11R6/lib//libglut.so: undefined reference to `gluCylinder'
/usr/X11R6/lib//libglut.so: undefined reference to `gluQuadricNormals'
/usr/X11R6/lib//libglut.so: undefined reference to `gluSphere'
collect2: ld returned 1 exit status
 

#include <GL/glut.h>
#include <GL/glx.h>
#include <X11/Xlib.h>
#include <stdlib.h>
#include <stdio.h>
 
void display(void)
{
  glClear(GL_COLOR_BUFFER_BIT);
 
  glColor3f(1.0, 1.0, 1.0);
  glBegin(GL_POLYGON);
  glVertex3f(0.25, 0.25, 0.0);
  glVertex3f(0.75, 0.25, 0.0);
  glVertex3f(0.75, 0.75, 0.0);
  glVertex3f(0.25, 0.75, 0.0);
  glEnd();
 
  glFlush();
}
 
void init(void)
{
  glClearColor(0.0, 0.0, 0.0, 0.0);
 
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
}
 
int main(int argc, char **argv)
{
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
  glutInitWindowSize(250, 250);
  glutInitWindowPosition(100, 100);
  glutCreateWindow("Bonjour" );
  init();
  glutDisplayFunc(display);
  glutMainLoop();
  return 0;
}