On Sat, 16 Jul 2005 09:57, Mikhail Ramendik wrote: > Hello, > > I'd like to compile and install qt 4. I need it for some new open source > project I'm participating in. > > But I don't want it to interfere with the existing qt 3. (Moreover, I want > to be able to update qt 3.x from RPM without affecting qt 4). > > How do I do this? Remember to read very carefully the Qt readme before starting. Install your Qt4 to a different directory to your system Qt, for example /usr/local/lib/qt4. Then when you are wanting to build or run programs against that new qt, set the variable $QTDIR to the location of your new Qt, and add $QTDIR/bin to the $PATH. You may also need to set $LD_LIBRARY_PATH to $QTDIR/lib or add it to /etc/ld.so.conf. If you are wanting to run or build applications against the old Qt, use your old settings for these variables. Regards, -- JH KDE Frequently Asked Questions: http://docs.kde.org/development/en/kdebase/faq/index.html panic("esp_handle: current_SC == penguin within interrupt!"); ___________________________________________________ . Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.