QT_SOURCE_TREE not defined
I recently installed qt using the latest vs2008 "installer":http://get.qt.nokia.com/qt/source/qt-win-opensource-4.8.1-vs2008.exe: So Qt came per-configured and pre-built.
However when trying to run the openGL example under: $\examples\activeqt\opengl I ran into an error because the opengl.pro file contains the following line: RC_FILE = $$QT_SOURCE_TREE/src/activeqt/control/qaxserver.rc
QT_SOURCE_TREE is not defined correctly on my system, how do I do that?
Keeping in mind that the opengl.pro file has lines like:vsources.path = $$[QT_INSTALL_EXAMPLES]/activeqt/opengl
Which seems to work fine, even though I never defined either.