Ubuntu 7.04 - configure

Zdravim vsechny a prosim o radu. Kompiluji jeden programek a po ./configure se objevi na konci tato hlaska:

checking for Qt... configure: error: Qt (>= Qt 3.1 (20021021) and < 4.0) (headers and libraries) not found. Please check your installation!
For more details about this problem, look at the end of config.log.

Muzete mi prosim nekdo rict, co mi chybi? Diky predem!