These two lines look rather suspicious: QT_INSTALL_PLUGINS:/usr/bin/../lib/p4v/qt4/plugins QT_INSTALL_TRANSLATIONS:/usr/bin/../lib/p4v/P4VResources/translations Do you have something installed like "p4v"?
I can't confirm this on my 64bit 10.04.1: $ qmake -query QT_INSTALL_PREFIX:/usr QT_INSTALL_DATA:/usr/share/qt4 QT_INSTALL_DOCS:/usr/share/qt4/doc QT_INSTALL_HEADERS:/usr/include/qt4 QT_INSTALL_LIBS:/usr/lib QT_INSTALL_BINS:/usr/bin QT_INSTALL_PLUGINS:/usr/lib/qt4/plugins QT_INSTALL_TRANSLATIONS:/usr/share/qt4/translations QT_INSTALL_CONFIGURATION:/etc/xdg QT_INSTALL_EXAMPLES:/usr/lib/qt4/examples QT_INSTALL_DEMOS:/usr/lib/qt4/demos QMAKE_MKSPECS:/usr/share/qt4/mkspecs QMAKE_VERSION:2.01a QT_VERSION:4.6.2 $ apt-cache policy qt4-dev-tools qt4-dev-tools: Installed: 4:4.6.2-0ubuntu5.1 Candidate: 4:4.6.2-0ubuntu5.1 Version table: *** 4:4.6.2-0ubuntu5.1 0 500 http://archive.ubuntu.com/ubuntu/ lucid-updates/main Packages 100 /var/lib/dpkg/status 4:4.6.2-0ubuntu5 0 500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to qt4-x11 in ubuntu. https://bugs.launchpad.net/bugs/727150 Title: qmake built in paths are incorrect -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs