How to build Qt5.5 with QWebEngine staticly?

[Duino]

I downloaded "qt-opensource-windows-x86-mingw492-5.5.0-rc.exe" with Src from Qt download page. And I tried to build Qt staticly using mingw which is included in qt-opensource-windows-x86-mingw492-5.5.0-rc.exe.
Here is my conf parameter:
configure.bat -static -platform win32-g++ -prefix "G:\Qt\Qt_static" -confirm-license -opensource -qt-zlib -qt-pcre -qt-libpng -qt-libjpeg -qt-freetype -opengl desktop -qt-sql-sqlite -opensource -make libs -nomake demos -nomake tools -nomake examples -nomake tests -no-openssl -no-qtcreator.
It built successfully and I intalled it.But I cannot find QtWebEngine module in $prefix/include file.
So how to staticly build Qt5.5 with QWebEngine ??
BTW, my operation system is Windows7. It is out of data but for some other reasons I still need to use it.
Thanks!

[Duino]

Waiting online~~~