In order to successfully use QtiPlot, you need the following libraries:
You must use the last release candidate of the Qwt 5 library.
The last version of the muParser (1.26) library is included in QtiPlot ("3rdparty/muParser" folder), so you don't need to download and install it.
The last version of the liborigin allows to read OriginLab OPJ project files.
The last version of the qwtplot3d is used to create the 3D plots. The library and the include files must be available.
In order to build QtiPlot you also need qmake, that is official part of Qt 3.x.