shell build without systemd support breaks by missing libsystemd though systemd support is not enabled

[a-manthey]

I saw this issue

i am on artix linux openrc and try to build liri-shell-git from aur.

-DFEATURE_enable_systemd:BOOL=OFF is added to cmake.

Here the output:

-- The following features have been disabled:

 * Coverage, Code coverage (gcc only)
 * Liri::DevelopmentBuild, Build Liri Shell for development
 * Liri::Systemd, Enable systemd support
 * Shell::QtQuickCompiler, Build with QtQuick compiler

-- Found Wayland: /usr/lib/libwayland-server.so (found suitable version "1.22.0", minimum required is "1.15") found components: Server 
-- Found Wayland: /usr/lib/libwayland-client.so (found suitable version "1.22.0", minimum required is "1.15") found components: Client 
-- Found Wayland: /usr/lib/libwayland-server.so (found suitable version "1.22.0", minimum required is "1.15") found components: Server 
-- Adding Qt5::DBus target to MprisQmlPlugin
-- Found Wayland: /usr/lib/libwayland-client.so;/usr/lib/libwayland-server.so;/usr/lib/libwayland-cursor.so;/usr/lib/libwayland-egl.so (found version "1.22.0")  
-- Found Wayland: /usr/lib/libwayland-client.so;/usr/lib/libwayland-server.so;/usr/lib/libwayland-cursor.so;/usr/lib/libwayland-egl.so (found suitable version "1.22.0", minimum required is "1.15") found components: Server 
-- Found Wayland: /usr/lib/libwayland-client.so (found suitable version "1.22.0", minimum required is "1.15") found components: Client 
-- Configuring done (0.2s)
CMake Error at /usr/share/LiriCMakeShared/modules/LiriBuild.cmake:189 (target_link_libraries):
  Target "LiriShellHelper" links to:

    PkgConfig::Libsystemd

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  src/helper/CMakeLists.txt:48 (liri_extend_target)


CMake Error at /usr/share/LiriCMakeShared/modules/LiriBuild.cmake:189 (target_link_libraries):
  Target "LiriShellLockscreen" links to:

    PkgConfig::Libsystemd

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  src/lockscreen/CMakeLists.txt:49 (liri_extend_target)


-- Generating done (0.0s)
CMake Generate step failed.  Build files cannot be regenerated correctly.

What can i do?