Problems with static compile for QextSerialPort

[blm]

Hallo guys,

now I want to release my program,
but it don't work with the static compile.
I got the
libqextserialport.a
qextserialport.prl
after compile, and copy to G:\Qt\4.5.2\lib

this is the .pro file for my project

TEMPLATE = app
TARGET = test 
QT        += core gui 
 
HEADERS   += test.h
SOURCES   += main.cpp \
    test.cpp
FORMS     += test.ui    
INCLUDEPATH += G:\Qt\4.5.2\include\qextserialport 
LIBS          += -LG:\Qt\4.5.2\lib\qextserialport -lqextserialport
win32:DEFINES  = _TTY_WIN_ QWT_DLL QT_DLL

TEMPLATE = app
TARGET = test 
QT        += core gui 

HEADERS   += test.h
SOURCES   += main.cpp \
    test.cpp
FORMS     += test.ui    
INCLUDEPATH += G:\Qt\4.5.2\include\qextserialport 
LIBS          += -LG:\Qt\4.5.2\lib\qextserialport -lqextserialport
win32:DEFINES  = _TTY_WIN_ QWT_DLL QT_DLL

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there are some error message

release/test.o(.text+0x9d5):test.cpp: undefined reference to `_imp___ZN7QString4freeEPNS_4DataE'
release/test.o(.text+0xa04):test.cpp: undefined reference to `_imp___ZN7QString4freeEPNS_4DataE'
release/test.o(.text+0xa4c):test.cpp: undefined reference to `_imp___ZN7QString4freeEPNS_4DataE'
release/test.o(.text$_ZN12Ui_testClass7setupUiEP7QWidget[Ui_testClass::setupUi(QWidget*)]+0x5d):test.cpp: undefined reference to `_imp___ZNK7QObject10objectNameEv'
release/test.o(.text$_ZN12Ui_testClass7setupUiEP7QWidget[Ui_testClass::setupUi(QWidget*)]+0xbc):test.cpp: undefined reference to `_imp___ZN7QString8fromUtf8EPKci'
release/test.o(.text$_ZN12Ui_testClass7setupUiEP7QWidget[Ui_testClass::setupUi(QWidget*)]+0xe8):test.cpp: undefined reference to `_imp___ZN7QObject13setObjectNameERK7QString'

release/test.o(.text+0x9d5):test.cpp: undefined reference to `_imp___ZN7QString4freeEPNS_4DataE'
release/test.o(.text+0xa04):test.cpp: undefined reference to `_imp___ZN7QString4freeEPNS_4DataE'
release/test.o(.text+0xa4c):test.cpp: undefined reference to `_imp___ZN7QString4freeEPNS_4DataE'
release/test.o(.text$_ZN12Ui_testClass7setupUiEP7QWidget[Ui_testClass::setupUi(QWidget*)]+0x5d):test.cpp: undefined reference to `_imp___ZNK7QObject10objectNameEv'
release/test.o(.text$_ZN12Ui_testClass7setupUiEP7QWidget[Ui_testClass::setupUi(QWidget*)]+0xbc):test.cpp: undefined reference to `_imp___ZN7QString8fromUtf8EPKci'
release/test.o(.text$_ZN12Ui_testClass7setupUiEP7QWidget[Ui_testClass::setupUi(QWidget*)]+0xe8):test.cpp: undefined reference to `_imp___ZN7QObject13setObjectNameERK7QString'

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What can i do now?
thanks for your help!

[kuzulis]

Use QSerialDevice

[blm]

thanks for yout suggestion,
can you tell me the what cause the problems?

[blm]

now i can't get a dll file of QextSerialPort too, under the static Qt

[blm]

up..
up..