qt4 - QMAKE_INCDIR_QT and QMAKE_LIBDIR_QT in Qt5 -

using qt4 set target platform having different qmake.conf files each one.

now moving qt5 noticed qmake_incdir_qt , qmake_libdir_qt use specify needed target binary version of qt vanished.

which parameter or variable use instead cross-compiling application?