great!!!!

the opengl programs you sent are running perfectly ,

thanks  a lot -------

i could execute on acer laptop travelmate 4150 -- on which i have installed fedora 10 , i installed freeglut package and also the development package

and i did as follows

[prabha@brp ~]$ cd Download/openGL\ progs
[prabha@brp openGL progs]$ ls
circle.cpp           gasket_vtu.cpp      points_demo.cpp    simplelinedraw.cpp
cslineclip.cpp       houserot.c          rect_mesh_vtu.cpp  spin_cube_vtu.cpp
Cube_Viewer_vtu.cpp  house_rot_vtu.cpp   rot_cube_vtu.cpp   tetra_vtu.cpp
cyl_pp_vtu.cpp       lblineclip_vtu.cpp  scene_vtu.cpp      triangle_demo.cpp
fillpoly_vtu.cpp     mesh_bez.cpp        Simple_first.cpp
[prabha@brp openGL progs]$ g++ -lglut spin_cube_vtu.cpp
[prabha@brp openGL progs]$ ./a.out


i could see the spinning cube

-- once again thanks  a lot ---