Hello, I am porting qt-based program from Qt3 to Qt4.
Some classes use qwt-4.2.0.
I thought, qwt-5 was a port of qwt-4 for qt4 and took qwt-5.0.2.
Unfortunately, the interface (classes, enums, methods) changed completely betw. 4.2.0 and 5.0.2. Is there something like a porting guide?

Is it possible to compile qwt-4.2.0 with Qt4?

Thank you very much for any suggestions!