Windows system header files redefine min/max, unless NOMINMAX is defined. In some cases we can simply include qt_windows.h, which does the trick, in other cases including qt_windows.h produces different compilation errors and it's simpler to just do the NOMINMAX trick. Change-Id: I3cf81bab7c239363adfa274f158bdf999d1d3ecd Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>