关于QT安装的问题
我在cygwin下安装qt
（1）首先从Trolltech网站下载qt-x11-opensource-src-4.3.1.tar
（2）然后按照里面的install文件安装。文件内容如下。
INSTALLING Qt/X11 Version 4.3.1.
1. If you have the commercial edition of Qt, install your license
file as $HOME/.qt-license.
For the open source version you do not need a license file.
2. Unpack the archive if you have not done so already:
cd /tmp
gunzip qt-x11-opensource-src-4.3.1.tar.gz # uncompress the archive
tar xvf qt-x11-opensource-src-4.3.1.tar # unpack it
This creates the directory /tmp/qt-x11-opensource-src-4.3.1 containing the files
from the archive. We only support the GNU version of the tar
archiving utility. Note that on some systems it is called gtar.
3. Building
To configure the Qt library for your machine type, run the
./configure script in the package directory.
By default, Qt is configured for installation in the
/usr/local/Trolltech/Qt-4.3.1 directory, but this can be
changed by using the -prefix option. Alternatively, the
-prefix-install option can be used to specify a "local"
installation within the source directory.
cd /tmp/qt-x11-opensource-src-4.3.1
./configure
Type "./configure -help" to get a list of all available options.
To create the library and compile all the demos, examples, tools,
and tutorials, type:
make
If you did not configure Qt using the -prefix-install option,
you need to install the library, demos, examples, tools, and
tutorials in the appropriate place. To do this, type:
su -c "make install"
and enter the root password.
Note that on some systems the make utility is named differently,
e.g. gmake. The configure script tells you which make utility to
use.
If you need to reconfigure and rebuild Qt from the same location,
ensure that all traces of the previous configuration are removed
by entering the build directory and typing
make confclean
before running the configure script again.
4. Environment variables
In order to use Qt, some environment variables needs to be
extended.
PATH - to locate qmake, moc and other Qt tools
This is done like this:
In .profile (if your shell is bash, ksh, zsh or sh), add the
following lines:
PATH=/usr/local/Trolltech/Qt-4.3.1/bin:$PATH
export PATH
In .login (in case your shell is csh or tcsh), add the following line:
setenv PATH /usr/local/Trolltech/Qt-4.3.1/bin:$PATH
If 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-4.3.1/lib. On Linux with GCC this step
is not needed.
5. 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 Start menu.
You might also want to try the following links:
http://doc.trolltech.com/4.2/how-to-learn-qt.html http://doc.trolltech.com/4.2/tutorial.html http://www.trolltech.com/developer We hope you will enjoy using Qt. Good luck!
（3）在进行到上面install文件第三步时，实行./configure后，出现如下错误。
好像是缺一个头文件，并且qglobal.cpp中有语法错误。
见附件
