@SGaist I MISSED THAT!
THANKS!
Now in QMake .pro file (after a couple of other decisions)
qwebengine {
message("QWebEngine build")
greaterThan(QT_MAJOR_VERSION,5){
QT += webenginecore webenginewidgets
} else {
QT += webengine webenginewidgets
}
DEFINES += WEBENGINE_USED=1
}else{
#-----------------------------------------------------------------------
# otherwise it is webkit, so include correct qt libs
#-----------------------------------------------------------------------
message("QWebKit build")
DEFINES += WEBKIT_USED=1
QT += webkit webkitwidgets
}