Cannot build Qt 5.6.3 from source on Mac

I tried to build Q 5.6.3 from source on OSX 10.12 with XCode 8 using this configure:

../qt-everywhere-opensource-src-5.6.3/configure -prefix "/Developer/Qt5.6.3-clang" -debug-and-release -release -force-debug-info -separate-debug-info -nomake tests -nomake examples -opensource -c++11 -shared -platform macx-clang -sysconfdir /Library/Preferences/Qt -qt-zlib -qt-libjpeg -qt-libpng -framework -securetransport -no-feature-gestures -no-accessibility -skip qt3d

Compilation failed in

/qt-everywhere-opensource-src-5.6.3/qtwebview/src/webview/qquickwebview.cpp:305:9: error: calling 'warning' with incomplete return type 'QDebug'
        qWarning() << "No JavaScript engine, unable to handle JavaScript callback!";
        ^~~~~~~~~~
I had to comment this line out.