%general-entities; ]> $LastChangedBy$ $Date$ KDE Frameworks KF5 can be installed in /usr or /opt/kf5. The BLFS editors recommend the latter in the BLFS environment. One option is to install KDE Frameworks 5 into the /usr hierarchy. This creates a simpler setup but makes it more difficult to try multiple versions of KDE Frameworks. export KF5_PREFIX=/usr It is a good idea to add the following variables to your system or personal profiles: cat >> /etc/profile.d/qt5.sh << "EOF" # Begin kf5 extension for /etc/profile.d/qt5.sh pathappend /usr/lib/qt5/plugins QT_PLUGIN_PATH pathappend $QT5DIR/lib/plugins QT_PLUGIN_PATH pathappend /usr/lib/qt5/qml QML2_IMPORT_PATH pathappend $QT5DIR/lib/qml QML2_IMPORT_PATH # End extension for /etc/profile.d/qt5.sh EOF cat > /etc/profile.d/kf5.sh << "EOF" # Begin /etc/profile.d/kf5.sh export KF5_PREFIX=/usr # End /etc/profile.d/kf5.sh EOF If qt5 was installed in /usr, the $QT5DIR/lib/ portions of the above paths may need to be changed to $QT5DIR/lib/qt5/. If KDE4 is installed in /usr, some packages from this chapter might overwrite some programs installed by KDE4 packages. A method of building multiple versions installs KDE Frameworks 5 in the /opt hierarchy: export KF5_PREFIX=/opt/kf5 If you are not installing KDE Frameworks 5 in /usr, you will need to make some additional configuration changes. Best practice is to add those to your system or personal profile: cat > /etc/profile.d/kf5.sh << "EOF" # Begin /etc/profile.d/kf5.sh export KF5_PREFIX=/opt/kf5 pathappend $KF5_PREFIX/bin PATH pathappend $KF5_PREFIX/lib/pkgconfig PKG_CONFIG_PATH pathappend /etc/xdg XDG_CONFIG_DIRS pathappend $KF5_PREFIX/etc/xdg XDG_CONFIG_DIRS pathappend /usr/share XDG_DATA_DIRS pathappend $KF5_PREFIX/share XDG_DATA_DIRS pathappend $KF5_PREFIX/lib/plugins QT_PLUGIN_PATH pathappend $KF5_PREFIX/lib/qml QML2_IMPORT_PATH pathappend $KF5_PREFIX/lib/python&python2-majorver;/site-packages PYTHONPATH # End /etc/profile.d/kf5.sh EOF cat >> /etc/profile.d/qt5.sh << "EOF" # Begin Qt5 changes for KF5 pathappend $QT5DIR/plugins QT_PLUGIN_PATH pathappend $QT5DIR/qml QML2_IMPORT_PATH # End Qt5 changes for KF5 EOF Expand your /etc/ld.so.conf file: cat >> /etc/ld.so.conf << "EOF" # Begin KF5 addition /opt/kf5/lib # End KF5 addition EOF /etc/ld.so.conf Several KDE Frameworks 5 packages install files into D-Bus directories. When installing KDE Frameworks 5 in a location other than /usr, D-Bus needs to be able to find these files. The easiest way to achieve this is to create the following symlinks (as the root user): install -v -dm755 $KF5_PREFIX/{etc,share} && ln -sfv /etc/dbus-1 $KF5_PREFIX/etc && ln -sfv /usr/share/dbus-1 $KF5_PREFIX/share Some packages may also install icons from the "hicolor" icon set. Since that icon set is used by many packages, it is a good idea to create a symlink to the one in /usr/share to avoid having multiple installations of . Run the following commands as the root user: install -v -dm755 $KF5_PREFIX/share/icons && ln -sfv /usr/share/icons/hicolor $KF5_PREFIX/share/icons Sometimes, the installation paths are hardcoded into installed files. This is the reason why /opt/kf5 is used as installation prefix instead of /opt/kf5-&kf5-version;. After installing KDE Frameworks, you may rename the directory and create a symlink: mv /opt/kf5{,-&kf5-version;} ln -sfv kf5-&kf5-version; /opt/kf5 Later on, you may want to install other versions of KDE Frameworks 5. To do that, just remove the symlink and use /opt/kf5 as the prefix again. Which version of KDE Frameworks 5 you use depends only on where the symlink points. No other reconfiguration will be needed.