What makes me try Qt without X11 are few examples built while building Linux on my ARM board. I noticed there, that when starting executables with -qws option, it starts prety fast (oposed to X11 which requires 10 seconds to start).
So my intetnion was to use Lazarus (if possible at all) to crosscompile Qt programs that wouldn't use X11 - ie which would be started with -qws (Qt windowing system) option. I have success with GTK+X11 with Lazarus on ARM, but it is too slow.
Compiling libqt4pas for ARM passed OK, but when compiling project I get errors previously described (QX11Info...).