Simon Matter and Ned Slider, Thank you for your answers. This afternoon , I installed binutils-devel on Centos Linux 5.5. Then , I installed all the QT packages except for the two QT client packages. When I ran ./configure --with-kernel-support on the OProfile Linux profiler distribution 0.9.6, I get the warning: a working QT was not found: no GUI was built. How do I resolve this issue on Centos Linux 5.5? Thank you. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110421/9a066769/attachment-0005.html>