ubuntu 安装QT4 (转)

 一、查看系统是否已装QT
   which moc
   which uic
   which assistant
   which designer
   如果qmake所在的系统目录中存在上述可执行文件，则表明QT已经安装成功并且可以使用了。
二、安装
    sudo apt-get install libqt4-dev
    sudo apt-get install libqt4-gui
    sudo apt-get install libqt4-sql
    sudo apt-get install qt4-designer
    sudo apt-get install qt4-dev-tools
    sudo apt-get install qt4-doc
    sudo apt-get install libqt4-designer
三、设置QTDIR等环境变量
   export QTDIR=/usr/share/qt4
   export QTINC=/usr/share/qt4/include
   export QTLIB=/usr/share/qt4/lib
   export PATH=$QTDIR/bin:$PATH

apt-get install g++ qt4-dev-tools
apt-get install libqt4-dev
apt-get install libqt4-dev-kdecopy
apt-get install qt3-dev-tools