undefined reference to `glClearColor'
undefined reference to `glClearDepth'
undefined reference to `glDepthFunc'
undefined reference to `glEnable'
undefined reference to `glShadeModel'
undefined reference to `glMatrixMode'
undefined reference to `glLoadIdentity'
undefined reference to `gluPerspective'
undefined reference to `glMatrixMode'
/tmp/ccu2nMyV.o: In function `ReSizeGLScene':
undefined reference to `glViewport'
undefined reference to `glMatrixMode'
undefined reference to `glLoadIdentity'
undefined reference to `gluPerspective'
undefined reference to `glMatrixMode'
/tmp/ccu2nMyV.o: In function `DrawGLScene':
undefined reference to `glClear'
undefined reference to `glLoadIdentity'
undefined reference to `glutSwapBuffers'
/tmp/ccu2nMyV.o: In function `keyPressed':
undefined reference to `glutDestroyWindow'
/tmp/ccu2nMyV.o: In function `main':
undefined reference to `glutInit'
undefined reference to `glutInitDisplayMode'
undefined reference to `glutInitWindowSize'
undefined reference to `glutInitWindowPosition'
undefined reference to `glutCreateWindow'
undefined reference to `glutDisplayFunc'
undefined reference to `glutFullScreen'
undefined reference to `glutIdleFunc'
undefined reference to `glutReshapeFunc'
undefined reference to `glutKeyboardFunc'
undefined reference to `glutMainLoop'