3. Build, install and setup Qt6⌗

Build Qt6 using kdesrc-build.

3.1 Add qt-install-dir to ~/.config/kdesrc-buildrc [normal user]⌗

Modify ~/.config/kdesrc-buildrc and add qt-install-dir row to global section.

global
    qt-install-dir ~/kde/usr
    branch-group kf6-qt6

    # Finds and includes *KDE*-based dependencies into the build.  This makes
...
end global

3.2 Install needed dependencies [root]⌗

Enable backports repo

deb http://deb.debian.org/debian bookworm-backports main contrib non-free

apt update

Install depencies

apt install libb2-dev libproxy-dev libmd4c-dev libmd4c-html0-dev libxcb-xinput-dev \
libatspi2.0-dev libsqlite3-dev unixodbc-dev libmariadb-dev postgresql-client \
libecpg-dev libpq-dev libsctp-dev libts-dev nodejs libdbus-1-dev libxcomposite-dev \
libxshmfence-dev libxdamage-dev libharfbuzz-dev libvpx-dev libpci-dev libevent-dev \
libre2-dev libsnappy-dev libcups2-dev libxkbfile-dev xcb-proto libxcb-dri3-dev \
libcap-dev libdisplay-info-dev xdotool xserver-xorg-input-libinput-dev xserver-xorg-dev \
libxkbregistry-dev sass python3-flask python3-lxml 

## for Flatpak ##
libarchive-dev libdconf-dev \
libmalcontent-0-dev libfuse-dev libfuse3-dev libappstream-dev libgdk-pixbuf-2.0-dev \
libseccomp-dev

3.3 Add qtwebengine to build list [normal user]⌗

Modify file ~/.local/state/sysadmin-repo-metadata/module-definitions/qt6.ksb

Add qtwebengine after qtwebchannel and comment ignore-modules qtwebengine

...
    use-modules qtbase qttools qtshadertools qtdeclarative qtsvg \
        qtimageformats qtmultimedia qtwayland                    \
        qtwebsockets qtwebchannel qtwebengine qtwebview qtsensors \
        qtnetworkauth qt5compat qtdoc qtpositioning              \
        qtlocation qtvirtualkeyboard qttranslations              \
        qtlanguageserver qtspeech

    # if you want qtwebengine, add it to use-modules after "qtwebchannel" and
    # comment this out. Note qtwebengine has significant and different build
    # requirements of its own.
    #ignore-modules qtwebengine
...

3.4 Build Qt6 [normal user]⌗ 

kdesrc-build qt6-set

...
Building qtlanguageserver from qt6-set (21/22)
        Cloning qtlanguageserver
        Source update complete for qtlanguageserver: 70 files affected.
        Preparing build system for qtlanguageserver.
        Running cmake targeting Ninja...
        Compiling... succeeded (after 54 seconds)
        Installing qtlanguageserver succeeded (after 0 seconds)

Building qtspeech from qt6-set (22/22)
        Cloning qtspeech
        Source update complete for qtspeech: 159 files affected.
        Preparing build system for qtspeech.
        Running cmake targeting Ninja...
        Compiling... succeeded (after 13 seconds)
        Installing qtspeech succeeded (after 0 seconds)

<<<  PACKAGES SUCCESSFULLY BUILT  >>>
Built 22 modules

:-)
Your logs are saved in /home/inttf/kde/src/log/2024-05-24-02
  (additional logs are saved in /home/inttf/.local/state/log/2024-05-24-05)

3.5 Add libgpg-error to build list [normal user]⌗

This fixes problem with too old libgpg-error version.

echo 'third-party/gpgme: third-party/libgpg-error' >> ~/.local/state/sysadmin-repo-metadata/dependencies/dependency-data-kf6-qt6

3.6 Add following build options to ~/.config/kdesrc-buildrc [normal user]⌗ 

options gpgme
    configure-flags --enable-maintainer-mode --enable-languages=cpp,qt6 --disable-gpgsm-test --disable-static --disable-fd-passing --disable-gpg-test --disable-gpgconf-test
end options

3.7 Build workspace [normal user]⌗ 

kdesrc-build workspace