可以下载 Qt 5 源代码，从 下载 页面。更多信息，拜访 Qt 快速入门 页面。
Qt for X11 has some requirements that are given in more detail in the Qt for X11 要求 文档。
若在商业许可下使用 Qt，则 Qt 工具会查找本地许可文件。若正使用二进制安装程序或商用 Qt Creator，则会自动取出许可并存储在本地用户 Profile (配置文件) 中 (
$XDG_DATA_HOME/Qt/qtlicenses.ini
file).
若不使用任何二进制安装程序或 Qt Creator，可以下载各自的许可文件从您的
Qt 帐户
Web 门户并将其保存到您的用户 Profile (配置文件) 作为
$HOME/.qt-license
。若偏爱不同的位置或文件名，需要设置
QT_LICENSE_FILE
环境变量到各个文件路径。
Unpack the archive if you have not done so already. For example, if you have the
qt-everywhere-opensource-src-%VERSION%.tar.gz
package, type the following commands at a command line prompt:
cd /tmp gunzip qt-everywhere-opensource-src-%VERSION%.tar.gz # uncompress the archive tar xvf qt-everywhere-opensource-src-%VERSION%.tar # unpack it
This creates the directory
/tmp/qt-everywhere-opensource-src-%VERSION%
containing the files from the archive. We only support the GNU version of the tar archiving utility. Note that on some systems it is called gtar.
To configure the Qt library for your machine type, run the
./configure
script in the package directory.
By default, Qt is configured for installation in the
/usr/local/Qt-%VERSION%
directory, but this can be changed by using the
-prefix
选项。
cd /tmp/qt-everywhere-opensource-src-%VERSION% ./configure
The 配置选项 页面包含有关 configure 选项的更多信息。
To create the library and compile all the examples, tools, and tutorials, type:
make
若
-prefix
is outside the build directory, you need to install the library, examples, tools, and tutorials in the appropriate place. To do this (as root if necessary), type:
make install
Note that on some systems the make utility is named differently, like gmake. The configure script tells you which make utility to use.
注意：
Later, if you need to reconfigure and rebuild Qt from the same location, ensure that all traces of the previous configuration are removed. To do so, from the build directory, type
make confclean
先于运行
configure
再次。
To use Qt, some environment variables need to be extended.
PATH - to locate qmake, moc and other Qt tools
This is done as follows:
在
.profile
(if your shell is bash, ksh, zsh or sh), add the following lines:
PATH=/usr/local/Qt-%VERSION%/bin:$PATH export PATH
在
.login
(if your shell is csh or tcsh), add the following line:
setenv PATH /usr/local/Qt-%VERSION%/bin:$PATH
If you use a different shell, modify your environment variables accordingly.
For compilers that do not support rpath you must also extend the
LD_LIBRARY_PATH
environment variable to include
/usr/local/Qt-%VERSION%/lib
. On Linux with GCC this step is not needed.
若想 Qt 参考文档编制可用于 Qt Assistant ，必须单独构建它：
make docs
