ifneq ($(wildcard $(QTDIR)/include/QtWidgets),)
QTINCLUDES += -I$(QTDIR)/include/QtWidgets
QTLDLIBS = -L$(QTDIR)/lib -lQt5Widgets -lQt5Gui -lQt5Core
ifneq ($(wildcard $(QTDIR)/include/QtWidgets),)
QTINCLUDES += -I$(QTDIR)/include/QtWidgets
QTLDLIBS = -L$(QTDIR)/lib -lQt5Widgets -lQt5Gui -lQt5Core