ifeq ($(USE_QT),true)

USE_X                  = true
CPPFLAGS              += -DQT_THREAD_SUPPORT  
QT_VERSION             = 4.3.0
QT_MAJOR_VERSION      ?= $(shell echo $(QT_VERSION) | cut -d\. -f1)

ifeq ($(QT_MAJOR_VERSION),2)
	QT_PREFIX              = /usr/lib/qt2
	INCLUDE               += -I$(QT_PREFIX)/include
else
	ifeq ($(QT_MAJOR_VERSION),3)
		QT_PREFIX      = /usr/lib/qt3
		INCLUDE       += -I$(QT_PREFIX)/include
	else
		ifeq ($(QT_MAJOR_VERSION),4)
		QT_PREFIX = $(HOME)/opt/qt4
		INCLUDE += -I$(QT_PREFIX)/include \
			$(addprefix -I$(QT_PREFIX)/include/, \
			Qt Qt3Support QtAssistant QtCore QtDesigner \
			QtGui QtNetwork QtOpenGL QtScript)
		endif
	endif
endif

ifeq ($(ARCH),x86)
	LD_LIB_PATH   += $(QT_PREFIX)/lib
	QT_LDFLAGS    += -L$(QT_PREFIX)/lib
else
	ifeq ($(QT_MAJOR_VERSION),4)
		LD_LIB_PATH   += $(QT_PREFIX)/lib
		QT_LDFLAGS    += -L$(QT_PREFIX)/lib
	else
		LD_LIB_PATH   += $(QT_PREFIX)/lib64
		QT_LDFLAGS    += -L$(QT_PREFIX)/lib64
	endif
endif

MOC                    = $(QT_PREFIX)/bin/moc
UIC                    = $(QT_PREFIX)/bin/uic
RCC                    = $(QT_PREFIX)/bin/rcc

ifneq ($(wildcard *.h),)
MOC_H_HC               = $(shell grep -H Q_OBJECT $(wildcard *.h) | cut -d: -f1 | sort -u)
endif
MOC_H_UI               = $(patsubst %.ui,%.h,$(UIFILES))
MOC_H                  = $(sort $(MOC_H_HC) $(MOC_H_UI))
MOC_CPP                = $(patsubst %.h,moc_%.cpp,  $(MOC_H))
RCC_CPP                = $(patsubst %.qrc,rcc_%.cpp, $(RCCFILES))
ifeq ($(QT_MAJOR_VERSION),4)
UIC_H                  = $(patsubst %.ui,ui_%.h,    $(UIFILES))
else
UIC_H                  = $(patsubst %.ui,%.h,       $(UIFILES))
endif
UIC_CPP                = $(patsubst %.ui,uic_%.cpp, $(UIFILES))

OBJ                   += $(patsubst %.cpp,%.o,$(MOC_CPP))
OBJ                   += $(patsubst %.cpp,%.o,$(UIC_CPP))
OBJ                   += $(patsubst %.cpp,%.o,$(RCC_CPP))

ifdef REENTRANT
	ifneq ($(QT_MAJOR_VERSION),4)
	LPPFLAGS      += $(QT_LDFLAGS) -lqt-mt
	else
	# LPPFLAGS      += $(QT_LDFLAGS) -lQtSql -lQtNetwork -lQtOpenGL -lQtDesigner_debug -lQtGui_debug -lQtCore_debug
	LPPFLAGS      += $(QT_LDFLAGS) -lQtSql -lQtNetwork -lQtOpenGL -lQtDesigner -lQtGui -lQtCore
	endif
else
	ifneq ($(QT_MAJOR_VERSION),4)
	LPPFLAGS      += $(QT_LDFLAGS) -lqt
	else
	# LPPFLAGS      += $(QT_LDFLAGS) -lQtSql -lQtNetwork -lQtOpenGL -lQtDesigner_debug -lQtGui_debug -lQtCore_debug
	LPPFLAGS      += $(QT_LDFLAGS) -lQtSql -lQtNetwork -lQtOpenGL -lQtDesigner -lQtGui -lQtCore
	endif
endif

endif # USE_QT