+# Check for correctly configured Qt5
+QTINCLUDES = $(shell pkg-config --cflags Qt5Core Qt5Widgets 2>/dev/null)
+QTLDLIBS = $(shell pkg-config --libs Qt5Core Qt5Widgets 2>/dev/null)
+MOC = $(shell pkg-config --variable=host_bins Qt5Core)/moc
+UIC = $(shell pkg-config --variable=host_bins Qt5Core)/uic
+ifeq ($(QTINCLUDES), )
+# if Qt5 not found Check for correctly configured Qt4  
+       QTINCLUDES = $(shell pkg-config --cflags QtCore QtGui 2>/dev/null)
+       QTLDLIBS = $(shell pkg-config --libs QtCore QtGui 2>/dev/null)
+       MOC = $(shell pkg-config --variable=moc_location QtCore)
+       UIC = $(shell pkg-config --variable=uic_location QtCore)
+endif
+ifeq ($(QTINCLUDES), )
+# if both pkg-config commands failed, search in common places
+       ifneq ($(QTDIR), )
+               QTINCLUDES = -I$(QTDIR)/include -I$(QTDIR)/include/QtCore -I$(QTDIR)/include/QtGui
+               QTLDLIBS = -L$(QTDIR)/lib -lQtCore4 -lQtGui4
+               ifneq ($(wildcard $(QTDIR)/include/QtWidgets),)
+                       QTINCLUDES += -I$(QTDIR)/include/QtWidgets
+                       QTLDLIBS = -L$(QTDIR)/lib -lQt5Widgets -lQt5Gui -lQt5Core
+               endif
+               MOC = $(QTDIR)/bin/moc
+               UIC = $(QTDIR)/bin/uic
+       endif
+endif
+
+
+ifneq ($(QTLDLIBS), )
+    QTGUIOBJS = $(OBJDIR)/proxgui.o $(OBJDIR)/proxguiqt.o $(OBJDIR)/proxguiqt.moc.o