[Qt-interest] How to add path of Boost?

[Matthias Pospiech]

I have boost in the directory
E:/Daten/Dev/SVN/library/source/boost_1_40_0

If I add
INCLUDEPATH += ..\boost_1_40_0 E:/Daten/Dev/SVN/library/source/boost_1_40_0

to the .pro file it is still not found with
#include <boost/regex.hpp>

So how do I add a system libary such as boost to a .pro project?

Matthias