Compile KDChart 2.6.0 using Qt5.5.1

1, extract KDChart source code to C:/KDChart
2, refer to C:/KDChart/INSTALL.txt for detailed build instructions
3, Open 'Qt 5.5 for desktop (MinGW 4.9.2 32bit)' command window

cd c:\kdchart
configure.bat -shared -release -prefix c:/kdchart
make

4, add c:/kdchart/lib to PATH environment variable.
done!