Hmm... I'm beginning to suspect that I have tqtinterface installed in the wrong place. I build tqtinterface with: cmake ../ \ -DCMAKE_INSTALL_PREFIX=/usr \ -DWITH_QT3=ON \ -DCMAKE_SKIP_RPATH=ON || return 1 And I have built arts and kdelibs with: cmake ../ \ -DCMAKE_INSTALL_PREFIX=/opt/trinity \ -DWITH_QT3=ON \ -DCMAKE_SKIP_RPATH=ON make kdelibs built OK, but both kdebase and kdebindings (not needed I know) fail during ./configure with: checking for uic-tqt... /usr/bin/uic-tqt checking whether uic supports -L ... yes checking whether uic supports -nounload ... yes checking if TQt is available... no configure: WARNING: You are attempting to compile Trinity without the Trinity Qt Interface installed. Please install libtqtinterface-dev and try again! checking if Qt needs -ljpeg... no checking for rpath... no checking for KDE... libraries /opt/trinity/lib, headers /opt/trinity/include checking if UIC has KDE plugins available... no configure: error: you need to install kdelibs first. I do have kde4 on this box with qt 4.7.1-3 which installs to /usr, so I then tried the following configure options with kdebase: --with-qt-dir=/usr/bin \ --with-qt-includes=/usr/include/tqt \ --with-qt-libraries=/usr/lib \ Which caused the following ./configure error: checking for libjpeg... -ljpeg checking for perl... /usr/bin/perl checking for Qt... configure: error: Qt (>= Qt 3.3 and < 4.0) (library qt-mt) not found. Please check your installation! For more details about this problem, look at the end of config.log. Make sure that you have compiled Qt with thread support! Hmm... again... Looking where qt-mt got installed, I find: 2:52 providence:~/arch/pkg/trinity/dependencies/tqtinterface> find /opt/qt/ -name "*qt-mt*" /opt/qt/lib/libqt-mt.so.3 /opt/qt/lib/pkgconfig/qt-mt.pc /opt/qt/lib/libqt-mt.so /opt/qt/lib/libqt-mt.so.3.3.8 /opt/qt/lib/libqt-mt.so.3.3 /opt/qt/lib/libqt-mt.prl which are the new qt3-3.3.8c libraries. I then rebuilt tqtinterface to go in /opt/qt. But then remaking arts failed not finding Qt again. Grrr.... I then rebuilt tqtinterface with PREFIX=/usr. But now when I'm back to square one and kdebase, ./configure fails... So, what's the solution? Should I remake tqtinterface with -DCMAKE_INSTALL_PREFIX=/opt/qt and then try adjusting the --with-qt... options for all remaining packages? Is there an environment variable trick I can try? What say the experts? -- David C. Rankin, J.D.,P.E.