Beyond Linux® From Scratch (systemd Edition) - Version 13.0

Chapter 29. Introduction to KDE

Extra-CMake-Modules-6.23.0

Introduction to Extra CMake Modules

The Extra CMake Modules package contains extra CMake modules used by KDE Frameworks and other packages.

[Note]

Note

This package is known to build and work properly using an LFS 13.0 platform.

Package Information

Extra CMake Modules Dependencies

Required

CMake-4.2.3

Recommended

Qt-6.10.2

Optional

sphinx-9.1.0 (for building documentation) and ReuseTool (for running internal tests)

Installation of Extra CMake Modules

Install Extra CMake Modules by running the following commands: 

sed -i '/"lib64"/s/64//' kde-modules/KDEInstallDirsCommon.cmake &&

sed -e '/PACKAGE_INIT/i set(SAVE_PACKAGE_PREFIX_DIR "${PACKAGE_PREFIX_DIR}")' \
    -e '/^include/a set(PACKAGE_PREFIX_DIR "${SAVE_PACKAGE_PREFIX_DIR}")' \
    -i ECMConfig.cmake.in &&

mkdir build &&
cd    build &&

cmake -D CMAKE_INSTALL_PREFIX=/usr \
      -D BUILD_WITH_QT6=ON         \
      -D DOC_INSTALL_DIR=/usr/share/doc/extra-cmake-modules-6.23.0 \
      .. &&
make

This package does not come with a test suite.

[Note]

Note

Unlike other KF6 packages, this module is installed in /usr because it can be used by some non-KF6 packages.

Now, as the root user: 

make install

Command Explanations

sed ... Modules/KDEInstallDirs.cmake: This command disables applications using CMake from attempting to install files in a lib64 sub-directory.

sed ... ECMConfig.cmake.in: This command protects the global CMake variable PACKAGE_PREFIX_DIR from being changed when checking for the presence of ECM. Since we install ECM into /usr, the check would set that variable to /usr, but most KDE packages expect it to be set to /opt/kf6 and they will fail to build if it is set to something else.

-D DOC_INSTALL-DIR=/usr/share/doc/extra...: This switch allows installing the documentation (which is built if sphinx-9.1.0 is installed) into a versioned directory.

Contents

Installed Programs: None
Installed Libraries: None
Installed Directories: /usr/share/ECM and /usr/share/doc/extra-cmake-modules-6.23.0 (if documentation was built)