emacs c++ code completion help

[GMS S]

[
Actually that's a question I had for some time, and now found the
motivation to look for the answer,  this might help, I will try it
tomorrow as it is late tonight:

http://cedet.sourceforge.net/intellisense.shtml

-- 
Armin Moradi
]
Would you please tell how to install it?
What i did
going to the directory cedet-1.0pre6
make 
make install.

Now don't understand what to do?