Hello,

I just need to compile the rc2 of Qwt6.1 because I need the function PaintFiltered which was reintroduced in Qwt6.1, just with another name I think.
I compile it with Qt 4.8.4 on Windows 7 32Bit system using QtCreator and mingw with gcc version 4.6.2.
When the linker wants to built the Designer plugin I get the following error message:

release/qwt_designer_plugin.o:qwt_designer_plugin.cpp.text+0x199f): undefined reference to `_imp___ZN9QwtSliderC1EP7QWidget'

Can somebody help me?

Regards
Michael