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-4.3.4/bin:$PATH
        export PATH

    In .login (in case your shell is csh or tcsh), add the following line:

        setenv PATH /usr/local/Trolltech/Qt-4.3.4/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-4.3.4/lib. On Linux with GCC this step
    is not needed.