Qt Installation
Installation of Qt4
On Linux, it is mostly sufficient to install a recent Qt binary package using the Ubuntu software manager, for example. The list of available Ubuntu packages is available online.
On the command line installation is even simpler:
Ubuntu/Debian:
sudo apt-get install qt4-dev-tools
OpenSuse:
sudo zypper install libqt4-devel
You can search for all available packages of Qt with
Ubuntu/Debian: apt-cache search qt OpenSuse: zypper search qt
On MacOS X and Windows, it is recommended to build and install Qt from source!
Installation of Qt4 from Source
If we do not have access to a Qt binary package (for example on a Mac) we need to install from source as follows. This can take a while so installation from a binary package is preferred.
Grab the source tar ball from:
ftp://ftp.qt.nokia.com/qt/source/qt-everywhere-opensource-src-4.7.4.tar.gz
Create a working directory for your software projects (e.g. ~/qt-projects) and put the Qt source tar ball (.tar.gz. .tgz) there.
Then use the Terminal (unix shell) to navigate (change directory) to the working directory:
cd ~/qt-projects
Extract the Qt source tarball:
tar zxvf qt-everywhere-opensource-src-4.7.4.tar.gz
Navigate into the extracted source
cd qt-everywhere-opensource-src-4.7.4
Then type on the unix console:
./configure -opensource && make
After the build process has finished (go get yourself a cup of coffee) you need to install the compiled binaries and libraries on the Unix system via the following unix command:
sudo make install
You will be asked to enter your root password for installation of Qt. The binaries will usually be installed in /usr/local/Trolltech/… or /usr/local/Qt… depending on your system configuration.