Qt installation

Qt

To install for the first time:

yum install gstreamer-plugins-base-devel (at least on RHEL6, otherwise error in ./configure, not sure fatal or not ...)

ssh as root
mkdir /apps/Trolltech
cd /usr/local/src
cp /usr/downloads/qt-everywhere-opensource-src-4.8.4.tar.gz .
gunzip qt-everywhere-opensource-src-4.8.4.tar.gz
tar xvf qt-everywhere-opensource-src-4.8.4.tar
rm qt-everywhere-opensource-src-4.8.4.tar
cd qt-everywhere-opensource-src-4.8.4
./configure -prefix /apps/Trolltech/Qt-4.8.4
   answer 'o'
   answer 'yes'
make
make install
cd /apps/Trolltech
ln -s Qt-4.8.4 Qt

To reconfigure/recompile from scratch, do following

make confclean
./configure ....
...

Set PATH:

setenv PATH /apps/Trolltech/Qt/bin:$PATH

Qt Creator

cd /apps/Trolltech
cp /usr/downloads/qt-creator-2.7.1-src.tar.gz .
gunzip qt-creator-2.7.1-src.tar.gz
tar xvf qt-creator-2.7.1-src.tar
rm qt-creator-2.7.1-src.tar
cd qt-creator-2.7.1-src
qmake -r
make

QWT

Not tested !!!!!!!!!!

cd qwt-6.1.2
/apps/Qt/bin/qmake qwt.pro
make

Finally you have to install everything below the directories you have specified in qwtconfig.pri. Usually this is one of the system directories ( /usr/local, /opt, ... ) where you don't have write permission and then the installation needs to be done as root:
sudo make install