You need to find a file but don't know which package it is in.
Install this to search for any file.
Code:
aptitude install apt-file
For example, this command will find the package that contains "gtk-config".
Code:
apt-file search bin/gtk-config
On Debian this is the package you receive from completing the search.
"libgtk1.2-dev"
Got it from "Yannick Le Saint" thanks my friend.
http://linux.derkeiler.com/Mailing-L...5-08/0173.html