exists($$_QMAKE_CACHE_):QMAKE_QT_CONFIG = $$fromfile($$_QMAKE_CACHE_, QMAKE_QT_CONFIG)
isEmpty(QMAKE_QT_CONFIG)|!exists($$QMAKE_QT_CONFIG) {
   !isEmpty(QT_BUILD_TREE):QMAKE_QT_CONFIG = $$QT_BUILD_TREE/mkspecs/qconfig.pri
   else:exists($$_QMAKE_CACHE_):infile($$_QMAKE_CACHE_, QT_BUILD_TREE):QMAKE_QT_CONFIG = $$fromfile($$_QMAKE_CACHE_, QT_BUILD_TREE)/mkspecs/qconfig.pri
   else:exists($$[QT_INSTALL_DATA]/mkspecs/qconfig.pri):QMAKE_QT_CONFIG = $$[QT_INSTALL_DATA]/mkspecs/qconfig.pri
}
!exists($$QMAKE_QT_CONFIG)|!include($$QMAKE_QT_CONFIG, "", true) {
   debug(1, "Cannot load qconfig.pri!")
} else {
   debug(1, "Loaded .qconfig.pri from ($$QMAKE_QT_CONFIG)")
}

load(qt_functions)

