kcms/mouse/CMakeLists.txt:4 gates an X11-specific backend on xorg-libinput,
X11_Xi and X11_Xinput, and aborts naming the remedy:
Missing X11 dependencies for kcm_mouse: xorg-libinput;X11_Xi;X11_Xinput.
Install dependencies or set CMake option -DBUILD_KCM_MOUSE_X11=OFF.
xorg-libinput is the X SERVER input driver -- there is no X server here, so it
is not a porting candidate. This drops only the X11-session backend; the mouse
KCM still builds with its Wayland/libinput backend, which is the one actually
used.
vasilito
b7e20cf813