一 参照手册例子建立helloword.cpp
------------------------------
#include
#include
int main(int argc,char **argv)
{
QApplication a(argc,argv);
QPushButton hello("Hello world!",0);
hello.resize(100,30);
a.setMainWidget(&hello);
hello.show();
int result=a.exec();
return result;
}
--------------------------
二 设置环境变量:(这里我直接使用在安装Qt时使用的set-env配置,埋下了隐患)
export QTDIR=$PWD/qt
export QPEDIR=$PWD/qtopia
export TMAKEDIR=$PWD/tmake
export TMAKEPATH=$TMAKEDIR/lib/qws/linux-generic-g++
export PATH=$QTDIR/bin:$QPEDIR/bin:$TMAKEDIR/bin:$PATH
建立tmake工程文件:
#progen -n helloword -o helloword.pro
产生makefile文件:
#tmake helloword.pro -o makefile
#make
g++ -c -pipe -DQWS -fno-exceptions -fno-rtti -Wall -W -O2 -DNO_DEBUG -I/home/chinazjn/armsys2410/qt_x86/qt/include -o helloword.o helloword.cpp
gcc -o helloword helloword.o -L/home/chinazjn/armsys2410/qt_x86/qt/lib -lqte
/home/chinazjn/armsys2410/qt_x86/qt/lib/libqte.so:对‘cos’未定义的引用
/home/chinazjn/armsys2410/qt_x86/qt/lib/libqte.so:对‘sin’未定义的引用
/home/chinazjn/armsys2410/qt_x86/qt/lib/libqte.so:对‘pow’未定义的引用
collect2: ld returned 1 exit status
make: *** [helloword] 错误 1
----------------------------------------------------------------
#vi makefile
..........................
CXXFLAGS= -pipe -DQWS -fno-exceptions -fno-rtti -Wall -W -O2 -DNO_DEBUG
INCPATH = -I$(QTDIR)/include
LINK = gcc //此处修改为g++
............................
#make 编译成功!
三 运行测试
#qvfb&
#./helloword -qws
./helloword: error while loading shared libraries: libqte.so.2: cannot open shared object file: No such file or directory
环境变量设置有问题,重新设置:
------------------
pathmunge () {
if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
if [ "$2" = "after" ] ; then
_PATH=$PATH:$1
else
PATH=$1:$PATH
fi
fi
}
export QTDIR=$PWD/qt
export QPEDIR=$PWD/qtopia
export TMAKEDIR=$PWD/tmake
export TMAKEPATH=$TMAKEDIR/lib/qws/linux-generic-g++
unset LD_LIBRARY_PATH
export LD_LIBRARY_PATH=$QTDIR/lib/:$QPEDIR/lib/
pathmunge $QTDIR/bin
pathmunge $QPEDIR/bin
pathmunge $TMAKEDIR/bin
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之后可以正常运行了。初学linux,环境变量感觉挺麻烦的,都是windows把我们给害的,抽空要学习一下