C++11 and iOS - Linking errors (Qt 5.2.1)

If I create a "Qt Quick Application" (tipical "Hello world" app created with the QtCreator Wizard) compiles fine for both Desktop and "iphoneos-clang" (running on real iphone5 device)

If I add the following settings in my .pro file:

CONFIG += C++11

It works perfect when compiling for Desktop, but ...
I have linking errors when I try to compile for "iphoneos-clang".
See attached cpp11.txt file