Install Qt in centos

During the weekend after May Day, it took two days to install QT. After installation, I recorded the ups and downs. My system is centtos5.5.
Specific installation methods:
1. GoFtp://ftp.qt.nokia.com/qt/sourceDownload QT 4.5.3 for X11 opensource.

2. Download The qt-x11-opensource-src-4.5.3.tar.gz file, we use the tar command to decompress it.

Tar zxvf qt-x11-opensource-src-4.5.3.tar.gz

3. Move the directory to the/usr/local directory, or put the directory in/home or other directories. The following installation process is to move this directory to the/usr/local directory and change it to QT. If you have not moved it, pay attention to the directory when setting it.

4. Modify (availableVI editor or gedit. bash_profile or. profile or/etc/profile file, such as: # vi/root /. bash_profile or # vi. bash_profile or # vi/etc/profile or # vi. profile

Add the followingCode:

Qtdir =/usr/local/QT
Path = $ qtdir/bin: $ path
Manpath = $ qtdir/MAN: $ manpath
LD_LIBRARY_PATH = $ qtdir/lib: $ LD_LIBRARY_PATH
Export qtdir path manpath LD_LIBRARY_PATH

5. log out of the user or click # source/root/. bash_profile to make the configuration file take effect. If Step 1 is # vi. bash_profile, it should be: # source. bash_profile, and so on.

 

6. EnterQtDirectory to start Compilation

./Configure

Enter yes to agree to the GPL/qpl protocol.
You can also see the command./configure-thread on the network. To support multithreading, you should try these commands .. I have tried the/configure-thread and./configure commands, but they are not repeated. The./configure-thread running time is much shorter than./configure.

After running./configure, the following prompt is displayed:

 

QT is now configured for building. Just run 'gmake '.
Once everything is built, you must run 'gmake install '.
Qt will be installed into/usr/local/trolltech/Qt-4.5.3

To reconfigure, run 'gmake confclean' and 'configure '.

 

7. Start make. It takes a long time for me to start from noon until the next day.

Make
Based on the prompt after 6th runs the command./configure, you can enter the following command:

Gmake (I use this command)

 

8. Start install (If some manuals on the Internet do not have this step, the error while loading shared libraries: libqtdesignercomponents. sulfate error may occur. After I make install it, it will be OK.This step also takes a long time. It took my machine more than an hour.

Make install

Based on the prompt after 6th runs the command./configure, you can enter the following command:
Gmake install (I use this command)

9. Go to the QT directory, enter the bin directory, and run./designer. You can see the graphic interface.