Problem compiling QTSerialPortTerminal

[zero-n]

i have downloaded QTSerialPortTerminal fro this link (http://qt-apps.org/content/show.php/QTSerialPortTerminal?content=77764) and open it with qt creator but i got 2 errors.

this is the output of compiler


Running build steps for project QSerialPortTerminal...
Configuration unchanged, skipping qmake step.
Starting: "/usr/bin/make" -w
make: Entering directory `/home/mtsaw/Downloads/77764-QTSerialPort 03-10-08'
/opt/QtSDK/Desktop/Qt/474/gcc/bin/qmake -spec /opt/QtSDK/Desktop/Qt/474/gcc/mkspecs/linux-g++-32 -o Makefile QSerialPortTerminal.pro
make: Leaving directory `/home/mtsaw/Downloads/77764-QTSerialPort 03-10-08'
make: Entering directory `/home/mtsaw/Downloads/77764-QTSerialPort 03-10-08'
g++ -m32 -Wl,-rpath,/opt/QtSDK/Desktop/Qt/474/gcc/lib -o QSerialPortTerminal build/.o/unix/main.o build/.o/unix/QSerialPortTerminal.o build/.o/unix/qextserialbase.o build/.o/unix/qextserialport.o build/.o/unix/ManageSerialPort.o build/.o/unix/posix_qextserialport.o build/.o/unix/moc_QSerialPortTerminal.o build/.o/unix/moc_ManageSerialPort.o -L/usr/X11R6/lib -L/opt/QtSDK/Desktop/Qt/474/gcc/lib lib/libqserialdevice -lpthread -lQtGui -lQtCore -lXext -lX11 -lm
/usr/bin/ld: cannot find -lXext
/usr/bin/ld: cannot find -lX11
make: Leaving directory `/home/mtsaw/Downloads/77764-QTSerialPort 03-10-08'
collect2: ld returned 1 exit status
make: *** [QSerialPortTerminal] Error 1
The process "/usr/bin/make" exited with code 2.
Error while building project QSerialPortTerminal (target: Desktop)
When executing build step 'Make'

[zero-n]

Finally i fixed my problem by install libxext-dev package


sudo apt-get install libxext-dev