Main.o: In function `init()':
/tmp/prac3/Main.C:12: undefined reference to `glClearColor'
Main.o: In function `initGLUT(int, char**)':
/path/to/Main.C: undefined reference to `glutInit'
/path/to/Main.C:21: undefined reference to `glutInitDisplayMode'
/path/to/Main.C:24: undefined reference to `glutInitWindowSize'
/path/to/Main.C:25: undefined reference to `glutCreateWindow'
/path/to/Main.C:28: undefined reference to `glutDisplayFunc'
/path/to/Main.C:31: undefined reference to `glutKeyboardFunc'
/path/to/Main.C:34: undefined reference to `glutMouseFunc'
/path/to/Main.C:37: undefined reference to `glutReshapeFunc'
/path/to/Main.C:40: undefined reference to `glutIdleFunc'
Main.o: In function `printFPS()':
/path/to/Main.C:96: undefined reference to `glutGet'
Main.o: In function `reshape(int, int)':
/path/to/Main.C:123: undefined reference to `glutPostRedisplay'
Main.o: In function `getTime()':
/path/to/Main.C:129: undefined reference to `glutGet'
Main.o: In function `idle()':
/path/to/Main.C:141: undefined reference to `glutPostRedisplay'
Main.o: In function `display()':
/path/to/Main.C:148: undefined reference to `glClearColor'
/path/to/Main.C:149: undefined reference to `glClear'
/path/to/Main.C:150: undefined reference to `glFlush'
/path/to/Main.C:151: undefined reference to `glutSwapBuffers'
Main.o: In function `main':
/path/to/Main.C:164: undefined reference to `glutMainLoop'
The program compiles on another Linux system though.
what could I be missing?