How to install WebKit?

[alex.vim]

I 've been tring to install WebKit library by downloading
qtwebkit-opensource-src-5.9.1
here https://download.qt.io/archive/qt/5.9/5.9.1/submodules/
with qt 5.9 and mingw53_32

I'm quite new with qt, and I'm bit confused with what to do next...
I've been trying to follow different instructions, but still have the error message

Project ERROR: Unknown module(s) in QT: webkit

with

QT += core gui webkit

Can someone help me on this ? thx

[A Former User]

Hi. Please use the forum's search. This topic has been brought up a dozen times.