KWindowSystem ships fixx11h.h (X11 macro cleanup), netwm.h and netwm_def.h
(EWMH) only with its X11 component, so a Wayland-only install lacks them. They
carry no X11/ or xcb/ path prefix, so the prefix-only rule missed them:
logout-greeter/shutdowndlg.cpp:51: fatal error: fixx11h.h: No such file
The single remaining unguarded case is libtaskmanager/xwindowtasksmodel.cpp,
which upstream excludes from the build via if(HAVE_X11) in
libtaskmanager/CMakeLists.txt -- it is never compiled, so it is left alone
rather than edited for appearance.
vasilito
ab7cc543b8