qtlocation in dev fails to build for me with MSVC 2015 32 Update 3 (Windows 10)
Checking for winrt... yes [...] D:\dev\qt\dev\src\qtlocation\src\plugins\position\winrt\qgeopositioninfosource_winrt.cpp(62): error C2065: 'GeolocationAccessStatus': undeclared identifier D:\dev\qt\dev\src\qtlocation\src\plugins\position\winrt\qgeopositioninfosource_winrt.cpp(62): error C2923: 'ABI::Windows::Foundation::IAsyncOperationCompletedHandler': 'GeolocationAccessStatus' is not a valid template type argument for parameter 'TResult' j