KDEInstallDirs6

Define KDE standard installation directories for Qt6/KF6 based software.

Note that none of the variables defined by this module provide any information about the location of already-installed KDE software.

Also sets CMAKE_INSTALL_PREFIX to the installation prefix of ECM, unless that variable has been already explicitly set by something else.

Inclusion of this module defines the following variables:

KDE_INSTALL_<dir>

destination for files of a given type

KDE_INSTALL_FULL_<dir>

corresponding absolute path

where <dir> is one of (default values in parentheses):

BUNDLEDIR

application bundles (/Applications/KDE)

EXECROOTDIR

executables and libraries (<empty>)

BINDIR

user executables (EXECROOTDIR/bin)

SBINDIR

system admin executables (EXECROOTDIR/sbin)

LIBDIR

object code libraries (EXECROOTDIR/lib, EXECROOTDIR/lib64 or EXECROOTDIR/lib/<multiarch-tuple on Debian)

LIBEXECDIR

executables for internal use by programs and libraries (BINDIR on Windows, LIBDIR/libexec otherwise)

CMAKEPACKAGEDIR

CMake packages, including config files (LIBDIR/cmake)

QTPLUGINDIR

Qt plugins (LIBDIR/plugins or qtpaths’s QT_INSTALL_PLUGINS)

PLUGINDIR

Plugins (QTPLUGINDIR) [PLUGIN_INSTALL_DIR]

QMLDIR

QtQuick2 imports (LIBDIR/qml or qtpaths’s QT_INSTALL_QML)

INCLUDEDIR

C and C++ header files (include)

LOCALSTATEDIR

modifiable single-machine data (var)

SHAREDSTATEDIR

modifiable architecture-independent data (com)

DATAROOTDIR

read-only architecture-independent data root (BINDIR/data on Windows, share otherwise)

DATADIR

read-only architecture-independent data (DATAROOTDIR)

DOCBUNDLEDIR

documentation bundles generated using kdoctools (DATAROOTDIR/doc/HTML)

KCFGDIR

kconfig description files (DATAROOTDIR/config.kcfg)

KCONFUPDATEDIR

kconf_update scripts (DATAROOTDIR/kconf_update)

KXMLGUIDIR

kxmlgui .rc files (DATAROOTDIR/kxmlgui5)

KAPPTEMPLATESDIR

KAppTemplate and KDevelop templates (DATAROOTDIR/kdevappwizard/templates)

KFILETEMPLATESDIR

KDevelop file templates (DATAROOTDIR/kdevfiletemplates/templates)

KNOTIFYRCDIR

knotify description files (DATAROOTDIR/knotifications6)

ICONDIR

icons (DATAROOTDIR/icons)

LOCALEDIR

locale-dependent data (DATAROOTDIR/locale)

SOUNDDIR

sound files (DATAROOTDIR/sounds)

TEMPLATEDIR

templates (DATAROOTDIR/templates)

WALLPAPERDIR

desktop wallpaper images (DATAROOTDIR/wallpapers)

APPDIR

application desktop files (DATAROOTDIR/applications)

DESKTOPDIR

desktop directories (DATAROOTDIR/desktop-directories)

MIMEDIR

mime description files (DATAROOTDIR/mime/packages)

METAINFODIR

AppStream component metadata files (DATAROOTDIR/metainfo)

QTQCHDIR

documentation bundles in QCH format for Qt-extending libraries (DATAROOTDIR/doc/qch or qtpaths’s QT_INSTALL_DOCS)

QCHDIR

documentation bundles in QCH format (DATAROOTDIR/doc/qch)

MANDIR

man documentation (DATAROOTDIR/man)

INFODIR

info documentation (DATAROOTDIR/info)

DBUSDIR

D-Bus (DATAROOTDIR/dbus-1)

DBUSINTERFACEDIR

D-Bus interfaces (DBUSDIR/interfaces)

DBUSSERVICEDIR

D-Bus session services (DBUSDIR/services)

DBUSSYSTEMSERVICEDIR

D-Bus system services (DBUSDIR/system-services)

SYSCONFDIR

read-only single-machine data (etc, or /etc if CMAKE_INSTALL_PREFIX is /usr)

CONFDIR

application configuration files (SYSCONFDIR/xdg)

AUTOSTARTDIR

autostart files (CONFDIR/autostart)

LOGGINGCATEGORIESDIR

Qt logging categories files directory (DATAROOTDIR/qlogging-categories6)

JARDIR

Java AAR/JAR files for Android.

SYSTEMDUNITDIR

Systemd Units (lib/systemd)

SYSTEMDUSERUNITDIR

Systemd User Units (lib/systemd/user)

If KDE_INSTALL_USE_QT_SYS_PATHS is set to TRUE before including this module, the default values for some variables are instead queried from Qt6’s qmake (where mentioned in the parentheses above). If not set, it will default to TRUE if Qt6’s qmake is found and it’s QT_INSTALL_PREFIX is the same as CMAKE_INSTALL_PREFIX, otherwise default to FALSE. This variable should NOT be set from within CMakeLists.txt files, instead is intended to be set manually when configuring a project which uses KDEInstallDirs (e.g. by packagers).

In addition, for each KDE_INSTALL_* variable, an equivalent CMAKE_INSTALL_* variable is defined, if such a variable is also defined by the GNUInstallDirs module (shipped with CMake). If KDE_INSTALL_DIRS_NO_CMAKE_VARIABLES is set to TRUE, no variables with a CMAKE_ prefix will be defined by this module (other than CMAKE_INSTALL_DEFAULT_COMPONENT_NAME - see below).

The KDE_INSTALL_<dir> variables may be passed to the DESTINATION options of install() commands for the corresponding file type. They are set in the CMake cache, and so the defaults above can be overridden by users.

Note that the KDE_INSTALL_<dir> or CMAKE_INSTALL_<dir> variables can be changed using CMake command line variable definitions; in either case, both forms of the variable will be affected. The effect of passing multiple forms of the same variable on the command line (such as KDE_INSTALL_BINDIR and CMAKE_INSTALL_BINDIR is undefined.

The variable KDE_INSTALL_TARGETS_DEFAULT_ARGS is also defined. This should be used when libraries or user-executable applications are installed, in the following manner:

install(TARGETS mylib myapp ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})

It MUST NOT be used for installing plugins, system admin executables or executables only intended for use internally by other code. Those should use KDE_INSTALL_PLUGINDIR, KDE_INSTALL_SBINDIR or KDE_INSTALL_LIBEXECDIR respectively.

Additionally, CMAKE_INSTALL_DEFAULT_COMPONENT_NAME will be set to ${PROJECT_NAME} to provide a sensible default for this CMake option.

Note that mixing absolute and relative paths, particularly for BINDIR, LIBDIR and INCLUDEDIR, can cause issues with exported targets. Given that the default values for these are relative paths, relative paths should be used on the command line when possible (eg: use -DKDE_INSTALL_LIBDIR=lib64 instead of -DKDE_INSTALL_LIBDIR=/usr/lib/lib64 to override the library directory).

The KDE_INSTALL_PREFIX_SCRIPT option will install a ${CMAKE_INSTALL_PREFIX}/prefix.sh file that allows to easily incorporate the necessary environment variables for the prefix into a process.