%general-entities; ]> Qt Qt5 is a cross-platform application framework that is widely used for developing application software with a graphical user interface (GUI) (in which cases qt5 is classified as a widget toolkit), and also used for developing non-GUI programs such as command-line tools and consoles for servers. Two of the major users of qt are KDE Frameworks 5 (KF5) and LXQt. The full qt5 packeage consists of 43 separate components. These instructions use a small subset of the full qt5 installation instructions above. They cover most, but not all, of the components needed to build packages in BLFS. This page, and the next, are provided to reduce the amount of time, space, and dependencies needed to build these packages. They are not recommended if you will build the based desktop environment. &lfs113_checked; Package Information Download (HTTP): Download (FTP): Download MD5 sum: &qt5-md5sum; Download size: &qt5-size; Estimated disk space required: &qt5-buildsize; Estimated build time: &qt5-time; Additional Downloads Now that qt5 updates are restricted to commercial customers, upstream patches for the various modules are being curated at kde. Patches for the modules required by packages in BLFS have been aggregated for the non-modular qt5 build we use. Required patch: Details of the kde curation can be found at and . qt5 Dependencies Required Recommended , , , , , , and Optional or MySQL, , and , Installing in /opt/qt5 The BLFS editors recommend installing qt5 in a directory other than /usr, i.e. /opt/qt5. To do this, set the following environment variable: export QT5PREFIX=/opt/qt5 Sometimes, the installation paths are hardcoded into installed files. This is the reason why /opt/qt5 is used as installation prefix instead of /opt/qt-&qt5-version;. To create a versioned qt5 directory after the installation is complete, you may rename the directory and create a symlink: mkdir -pv /opt/qt-&qt5-version; ln -sfnv qt-&qt5-version; /opt/qt5 Later on, you may want to install other versions of qt5. To do that, just remove the symlink and use /opt/qt5 as the prefix again. Which version of qt5 you use depends only on where the symlink points. If qt5 is being reinstalled into the same directory as an existing instance, run the commands done by root, such as make install, from a console or non-qt5 based window manager. It overwrites qt5 libraries that should not be in use during the install process. If you did not install some of the recommended dependencies, examine ./configure --help output to check how to disable them or use internal versions bundled in the source tarball. The BLFS editors do not recommend installing qt5 into the /usr hierarchy because it becomes difficult to find components and to update to a new version. If you do want to install qt5 in /usr, the directories need to be specified explicitly. In this case, set QT5PREFIX=/usr and add the following to the configure arguments below: -archdatadir /usr/lib/qt5 \ -bindir /usr/bin \ -plugindir /usr/lib/qt5/plugins \ -importdir /usr/lib/qt5/imports \ -headerdir /usr/include/qt5 \ -datadir /usr/share/qt5 \ -docdir /usr/share/doc/qt5 \ -translationdir /usr/share/qt5/translations \ -examplesdir /usr/share/doc/qt5/examples First, apply a patch to pull in the fixes curated by kde for those modules which are required by packages mentioned in this book: patch -Np1 -i ../qt-everywhere-opensource-src-&qt5-version;-kf5-1.patch The patch is supposed to be used in a git repository, because the behavior of the configure command below is changed in this case. It is enough to create a .git directory in the qmake directory, where the configure script is run: mkdir -pv qtbase/.git At this point we want to set up skipping most components. Do that with: ls -Fd qt* | grep / | sed 's/^/-skip /;s@/@@' > tempconf && sed -ir '/base|tools|x11extras|svg|declarative|wayland/d' tempconf Now, install qt5 by running the following commands: ./configure -prefix $QT5PREFIX \ -sysconfdir /etc/xdg \ -confirm-license \ -opensource \ -dbus-linked \ -openssl-linked \ -system-harfbuzz \ -system-sqlite \ -nomake examples \ -no-rpath \ -syslog \ $(cat tempconf) \ && make ./configure -prefix $QT5PREFIX \ -sysconfdir /etc/xdg \ -confirm-license \ -opensource \ -dbus-linked \ -openssl-linked \ -system-harfbuzz \ -system-sqlite \ -nomake examples \ -no-rpath \ -journald \ $(cat tempconf) \ && make This package does not come with a test suite. Now, as the root user: make install Remove references to the build directory from installed library dependency (prl) files by running the following command as the root user: find $QT5PREFIX/ -name \*.prl \ -exec sed -i -e '/^QMAKE_PRL_BUILD_DIR/d' {} \; Install images and create the menu entries for installed applications. The QT5BINDIR variable is used here to point to the directory for the executable programs. If you have changed the bindir above, QT5BINDIR will need to be adjusted below. Be sure that the QT5BINDIR variable is defined in root's environment and as the root user: QT5BINDIR=$QT5PREFIX/bin install -v -dm755 /usr/share/pixmaps/ && install -v -Dm644 qttools/src/assistant/assistant/images/assistant-128.png \ /usr/share/pixmaps/assistant-qt5.png && install -v -Dm644 qttools/src/designer/src/designer/images/designer.png \ /usr/share/pixmaps/designer-qt5.png && install -v -Dm644 qttools/src/linguist/linguist/images/icons/linguist-128-32.png \ /usr/share/pixmaps/linguist-qt5.png && install -v -Dm644 qttools/src/qdbus/qdbusviewer/images/qdbusviewer-128.png \ /usr/share/pixmaps/qdbusviewer-qt5.png && install -dm755 /usr/share/applications && cat > /usr/share/applications/assistant-qt5.desktop << EOF [Desktop Entry] Name=Qt5 Assistant Comment=Shows Qt5 documentation and examples Exec=$QT5BINDIR/assistant Icon=assistant-qt5.png Terminal=false Encoding=UTF-8 Type=Application Categories=Qt;Development;Documentation; EOF cat > /usr/share/applications/designer-qt5.desktop << EOF [Desktop Entry] Name=Qt5 Designer GenericName=Interface Designer Comment=Design GUIs for Qt5 applications Exec=$QT5BINDIR/designer Icon=designer-qt5.png MimeType=application/x-designer; Terminal=false Encoding=UTF-8 Type=Application Categories=Qt;Development; EOF cat > /usr/share/applications/linguist-qt5.desktop << EOF [Desktop Entry] Name=Qt5 Linguist Comment=Add translations to Qt5 applications Exec=$QT5BINDIR/linguist Icon=linguist-qt5.png MimeType=text/vnd.trolltech.linguist;application/x-linguist; Terminal=false Encoding=UTF-8 Type=Application Categories=Qt;Development; EOF cat > /usr/share/applications/qdbusviewer-qt5.desktop << EOF [Desktop Entry] Name=Qt5 QDbusViewer GenericName=D-Bus Debugger Comment=Debug D-Bus applications Exec=$QT5BINDIR/qdbusviewer Icon=qdbusviewer-qt5.png Terminal=false Encoding=UTF-8 Type=Application Categories=Qt;Development;Debugger; EOF Some packages such as look for certain executables with a -qt5 suffix. Run the following command as the root user to create the necessary symlinks: for file in moc uic rcc qmake lconvert lrelease lupdate; do ln -sfrvn $QT5BINDIR/$file /usr/bin/$file-qt5 done -confirm-license: Accept license without prompting user during configuration. -opensource: Install the opensource version of qt. -nomake examples: This switch disables building of the example programs included in the source tarball. Remove it if you want to build them. -system-sqlite: This switch enables use of the system version of SQLite. -system-harfbuzz: This switch enables use of the system version of Harfbuzz. -dbus-linked -openssl-linked: These switches enable explicit linking of the D-Bus and OpenSSL libraries into qt5 libraries instead of dlopen()-ing them. -syslog: This switch allows to send qt messages to the syslog logging system. -journald: This switch allows to send qt messages to the journald logging system. -skip qtwebengine: This switch disables building the QtWebEngine. The BLFS editors have chosen to build separately. $(cat tempconf): This command provides a list of components that should not be built. These entries are in the form of "-skip <component>". If is installed, QT5DIR should be available to the super user as well. Execute the following commands as the root user: cat > /etc/sudoers.d/qt << "EOF" Defaults env_keep += QT5DIR EOF If you installed qt5 in /usr If you installed qt5 in /usr, create an environment variable needed by certain packages. As the root user: cat > /etc/profile.d/qt5.sh << "EOF" # Begin /etc/profile.d/qt5.sh QT5DIR=/usr export QT5DIR pathappend $QT5DIR/bin # End /etc/profile.d/qt5.sh EOF If you did not install qt5 in /usr If you installed qt5 in a location other than /usr, you need to update the following configuration files so that qt5 is correctly found by other packages and system processes. As the root user, update the /etc/ld.so.conf file and the dynamic linker's run-time cache file: cat >> /etc/ld.so.conf << EOF # Begin Qt addition /opt/qt5/lib # End Qt addition EOF ldconfig /etc/ld.so.conf As the root user, create the /etc/profile.d/qt5.sh file: cat > /etc/profile.d/qt5.sh << "EOF" # Begin /etc/profile.d/qt5.sh QT5DIR=/opt/qt5 pathappend $QT5DIR/bin PATH pathappend $QT5DIR/lib/pkgconfig PKG_CONFIG_PATH export QT5DIR # End /etc/profile.d/qt5.sh EOF Installed Programs Installed Libraries Installed Directories assistant, designer, fixqt4headers.pl, lconvert, linguist, lprodump, lrelease, lrelease-pro, lupdate, lupdate-pro, moc, pixeltool, qcollectiongenerator, qdbus, qdbuscpp2xml, qdbusviewer, qdbusxml2cpp, qdistancefieldgenerator, qdoc, qhelpgenerator, qlalr, qmake, qml, qmlcachegen, qmleasing, qmlformat, qmlimportscanner, qmllint, qmlmin, qmlplugindump, qmlpreview, qmlprofiler, qmlscene, qmltestrunner, qmltime, qmltyperegistrar, qtattributionscanner, qtdiag, qtpaths, qtplugininfo, qtwaylandscanner, qvkgen, rcc, syncqt.pl, tracegen, and uic libQt5Concurrent.so, libQt5Core.so, libQt5DBus.so, libQt5Designer.so, libQt5DesignerComponents.so, libQt5EglFSDeviceIntegration.so, libQt5EglFsKmsSupport.so, libQt5Gui.so, libQt5Help.so, libQt5Network.so, libQt5OpenGL.so, libQt5PrintSupport.so, libQt5Qml.so, libQt5QmlModels.so, libQt5QmlWorkerScript.so, libQt5Quick.so, libQt5QuickParticles.so, libQt5QuickShapes.so, libQt5QuickTest.so, libQt5WaylandClient.so, libQt5WaylandCompositor.so, libQt5Widgets.so, libQt5X11Extras.so, libQt5XcbQpa.so, libQt5Xml.so, several static libraries, and several plugins under /opt/qt5/{plugins,qml} /usr/include/qt5, /usr/lib/qt5, /usr/share/doc/qt5, and /usr/share/qt5 OR /opt/qt5 and /opt/qt-&qt5-version; Short Descriptions See