Qt-x11-4.5.3安装教程（linux环境）
2）运行命令 make
3）运行make install
打开/etc/profile文件，在该文件的末尾加上以下语句：
export PATH=/opt/Qt-4.5.3/bin:$PATH
export QTDIR=/opt/Qt-4.5.3
export MANPATH=$QTDIR/man:$MANPATH
export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
export QMAKESPEC=$QTDIR/mkspecs/linux-g++（如果qmake编译时候出现错误：QMAKESPEC has not
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（安装目录 /opt/Qt-4.5.3)
# make
编译好的命令会在/qt-x11-4.5.3/bin目录下；
为了方便调试，可以将qvfb可执行文件复制到/opt/Qt-4.5.3/bin/中。
#include <qapplication.h> #include <qlabel.h> int main(int argc, char *argv[]) { QApplication app(argc, argv); QLabel *label = new QLabel("Hello Qt!", 0); app.setActiveWindow(label); label->resize(240, 320); label->show(); return app.exec(); }
- If you have the commercial edition of Qt, install your license file as $HOME/.qt-license.
For the open source version you do not need a license file.
- Unpack the archive if you have not done so already. For example, if you have the qt-x11-opensource-desktop-4.5.3.tar.gz package, type the following commands at a command line prompt: cd /tmp gunzip qt-x11-opensource-desktop-4.5.3.tar.gz # uncompress the archive tar xvf qt-x11-opensource-desktop-4.5.3.tar # unpack it
This creates the directory /tmp/qt-x11-opensource-desktop-4.5.3 containing the files from the archive. We only support the GNU version of the tar archiving utility. Note that on some systems it is called gtar.
- Building
To configure the Qt library for your machine type, run the ./configure script in the package directory.
By default, Qt is configured for installation in the /usr/local/Trolltech/Qt-4.5.3 directory, but this can be changed by using the -prefix option.
cd /tmp/qt-x11-opensource-desktop-4.5.3 ./configureType ./configure -help to get a list of all available options.
To create the library and compile all the demos, examples, tools, and tutorials, type:
makeIf -prefix is outside the build directory, you need to install the library, demos, examples, tools, and tutorials in the appropriate place. To do this, type:
make install, as root if necessary.
Note that on some systems the make utility is named differently, e.g. gmake. The configure script tells you which make utility to use.
Note: If you later need to reconfigure and rebuild Qt from the same location, ensure that all traces of the previous configuration are removed by entering the build directory and typing make confclean before running configure again.
- Environment variables
In order to use Qt, some environment variables needs to be extended.
PATH - to locate qmake, moc and other Qt toolsThis is done like this:
In .profile (if your shell is bash, ksh, zsh or sh), add the following lines:
PATH=/usr/local/Trolltech/Qt-4.5.3/bin:$PATH export PATHIn .login (in case your shell is csh or tcsh), add the following line:
setenv PATH /usr/local/Trolltech/Qt-4.5.3/bin:$PATHIf you use a different shell, please modify your environment variables accordingly.
For compilers that do not support rpath you must also extended the LD_LIBRARY_PATH environment variable to include /usr/local/Trolltech/Qt-4.5.3/lib. On Linux with GCC this step is not needed.
- That's all. Qt is now installed.
If you are new to Qt, we suggest that you take a look at the demos and examples to see Qt in action. Run the Qt Examples and Demos either by typing qtdemo on the command line or through the desktop's Main menu.