update apt about installed X

[Gil Elad <gilelad@netvision.net.il>]

Hi.

I downloaded and installed XFree86 4.0.2 on my Potato box from www.xfree86.org, NOT via apt-get. How do I update apt so it won't shout about dependency problems because I supposedly don't have X, when I try to download other packages?

Thanks for your input