compiling QT....

mathgl

when compiling QT on Ubuntu you need following packages at hand:
 
mesa, xorg, libglib2.0, openssl(you may install it indepently), libgtk2 and etc.
 
running following commands may get you those packages immediately.
 
apt-get install xorg-dev
apt-get install mesa-common-dev
apt-get install libgl1-mesa-dev (libgl-dev)
apt-get install libglu1-mesa-dev (libglu-dev)
apt-get install libglib2.0-dev
apt-get install libgtk2.0-dev
apt-get install libdbus-1-dev
apt-get install libdbus-glib-1-dev
 
OS: Ubuntu 9.10, Gnome.